New energy futures paper: batteries & the circular economy - Vector Limited
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about Vector contents Vector is New Zealand’s largest of the Battery Leaders Group, attendees FOREWORD 5 TRANSITION TO THE CIRCULAR ECONOMY 34 energy distribution company, and is of the Vector New Energy Futures Lab What to do with EV batteries: How the 9R Applied to Batteries 35 creating a new energy future through on batteries and other stakeholders who problem – and potentially the solutions – Transition 1: ‘Battery karma’ - investigation and investment in new were interviewed or provided case studies. will arrive first in New Zealand 5 giving batteries a second life 36 and innovative technologies. This is Challenges 41 Primary author: Juhi Shareef INTRODUCTION, PURPOSE & SCOPE about unlocking for its customers OF PAPER 7 Transition 2: Remanufacture 42 the benefits of smart meters, solar Reviewed and approved by: Challenges 42 Why batteries? 7 panels, batteries, electric vehicle Kate Beddoe, Karl Check, Cristiano Transition 3: Material recovery 42 Purpose of this Paper 8 charging infrastructure, and energy Marantes, Jonathan Bishop & Jo Phillips. Emerging transition opportunities: Who we talked to 9 management services. beyond lithium-ion 48 A special thanks to colleagues at Vector, Scope: what’s in and what’s out 10 This New Energy Futures Paper - particularly Jo Phillips and Philip Ivanier, The role of the Battery Leaders Group 12 OUR CIRCULAR FUTURE 50 Batteries and accompanying Technical for their contribution. Key uncertainties influencing the future Addendum has been made possible EVERYTHING YOU WANT TO KNOW ABOUT value chain of large batteries in NZ 50 thanks to the following people: LITHIUM-ION BATTERIES (AND MORE) 14 1. Battery recovery and reuse vs Legislative and Policy Context 14 materials recovery 51 Duncan Wilson of Eunomia Consulting NZ, Ariel Muller and Jiehui Kia of Forum Lithium-ion battery chemistries, 2. Local vs global solutions 52 for the Future, Jeff Vickers and Ben characteristics and construction 14 Three 2030 scenarios 53 Fisher of ThinkStep NZ, the members CURRENT STATE OF PLAY: OPPORTUNITIES IN THE NEW BATTERY OUR LINEAR SYSTEM 18 ECOSYSTEM 57 What is a linear economy? 18 The new battery ecosystem 58 The linear battery value chain 18 New players & enablers: Innovation Key materials in lithium-ion batteries 19 opportunities for NZ 59 Retail & uses of large batteries in Commercial opportunities for NZ 66 New Zealand 20 WHAT’S NEXT? 67 Stationary Storage 21 The Battery Industry Group (B.I.G.) 70 Applications: Household 22 Join us on the journey to a New Energy End-of-life collection & disposal 22 Future 70 Summary: why the linear economy doesn’t work 27 THE CIRCULAR ECONOMY 28 What is a circular economy? 28 3+3 principles for a circular economy 28 Circular economy and the Doughnut 29 Disclaimer Ōhanga Āmiomio: the circular economy in Vector Ltd has taken due care in the preparation of this Aotearoa 30 report to ensure that all facts and analysis presented are as accurate as possible. However, no guarantee is Six enabling factors 31 provided in respect of the information presented, and A circular economy for large lithium-ion Vector Ltd is not responsible for decisions or actions batteries 31 taken on the basis of the content of this report. © Vector Ltd 2019 Signals of Change 33 Through its partnership with Ngāti Whātua Ōrākei and its Kupe Street 30-home residential development for first-home buyers, Vector has created a real- world lab enabling observation of how a future community grid might operate, in which access to new technology – specifically networked solar and battery storage - is provided equally amongst all residents. 3
table of figures foreword What to do with EV batteries: How the problem – and potentially the solutions – will arrive first in New Zealand By Ariel Muller, Managing Director, Asia Pacific, Forum for the Future Figure 1: Battery Leaders Group Joint The momentum toward sustainable transport is As used EV batteries begin to enter the CASE STUDIES PAGE Statement 13 now undeniable. We just passed the 4 millionth second-hand market, there is the need for Figure 2: Cathode composition of lithium Waste Household Battery 11 electric vehicle (EV) sold globally. Bloomberg proactive action to build the technical and batteries, excluding lithium. Image Management recycling Programme estimates that by 2040, 55% of all new car sales social infrastructure for reuse, recycling reproduced from (Electrek, 2016). 16 New Zealand Trial and 33% of the global fleet will be electric. and responsible disposal solutions. Left Auto-manufacturers and countries are setting unchecked, New Zealand runs the risk of facing Figure 3: A Nissan Leaf Battery Pack 17 Envirostream Large lithium-ion 23 ambitious targets and making measurable unintended environmental consequences, as Figure 4: Linear Economy Conceptual battery processing in progress towards 100% electrification of current lithium-ion EV batteries can be highly Material 18 Australia cars. In New Zealand, the rate of adoption is polluting and pose a fire risk if not disposed of Figure 5: An example linear battery value Toyota New Large battery 25 exponentially rising from just 210 cars in 2013 to properly. However, if seen as an opportunity to chain 18 Zealand collection, material 10,000 in 2018. introduce innovative new market offerings, New Figure 6: Growth of the Stationary recovery and reuse Zealand could become a leader in approaches The benefits of EVs are well understood. They are demonstrating the new ecosystem of business Storage Market 21 BMW Closed life-cycle loop 38 low carbon, don’t produce tailpipe particulate models that will emerge around the worldwide Figure 7: Estimates of end-of-life EV and collaborating on emissions, quiet, and can act as a flexible storage electrification of vehicle fleets. Battery Packs 2019 -2030 24 a sustainable value solution for intermittent renewable energy. Figure 8: A linear vs a circular economy 28 chain for EV batteries However, with these benefits come challenges. Aligning public and private interest to facilitate Figure 9: The Doughnut of social and One of the most pressing challenges faced by policy and infrastructure change can be Strategic Lift Feasibility study 39 planetary boundaries (2017) 29 this industry is how to treat EV batteries at the complex and laborious, requiring investment for second-life EV end of their useful life in vehicles. An EV battery and engagement across multiple stakeholder Figure 10: Linear, recycling and circular batteries in New is the single largest value item in a car and is groups to build consensus. There will also economies 30 Zealand made with precious resources that are finite. In be the need for education and incentives for Figure 11: The 9R Framework adapted from Renault Second-life batteries 39 addition, once EV batteries are no longer fit for new behaviour from vehicle owners or users, Potting et al. (2017) 35 power all-electric purpose in vehicles, they still have approximately whose participation would be key for the Figure 12: Example EV battery lifecycle. passenger boat in 80% of their battery storage capacity left and success of solutions such as battery take-back Source: McKinsey & Company 36 Paris therefore can operate as small scale, flexible programmes. Figure 13: Where electric vehicle batteries are Vector & End-of-life vehicle 40 energy storage. In this challenge emerges an opportunity: How might we maximise the life It is in this regard that New Zealand might being used and tested for new Relectrify batteries could power of a battery through reuse and responsible have an advantage in implementing system- roles. Source: Bloomberg, company homes and businesses recycling at end of life – and perhaps even more wide change. In short, it is easier to bring the filings 37 Audi Battery material reuse 43 importantly, what will be the business models to system together here. New Zealand has a Figure 14: Outline of a circular economy. relatively small population that prizes its nature enable these solutions? Source: Ellen MacArthur Foundation, ReCell Closed-loop recycling 44 and environment as a defining characteristic SUN and McKinsey Centre for for lithium-ion The need to innovate around this challenge of its identity. There are a few leading private Business and Environment. batteries in the USA is especially front of mind in New Zealand. sector actors with a vested interest in the Drawing from: Braungart & The country’s current EV uptake programme reuse, recycling and responsible disposal of EV The Faraday Research vehicle 44 McDonough, relies heavily on the import of second hand batteries. Institution working to develop, Cradle to Cradle (C2C). 45 EVs. This means EVs entering the market come design and Figure 15: Cost of raw materials used in with semi-depleted batteries that are likely to The government has also shown interest and manufacture world- batteries. Image reproduced from reach end of usable life in the vehicle sooner. willingness to work with industry to introduce leading batteries in (Electrek, 2016) 46 Simultaneously, the absence of an indigenous enabling policies such as a product stewardship the UK auto-manufacturing sector in New Zealand, scheme for large batteries. This momentum – Figure 16: Critical uncertainties and three Fortum & Increasing the 47 coupled with the significant geographical and the relative ease of convening all the actors 2030 circular scenarios for large Crisolteq recycling rate of distance to other auto-manufacturing hubs, – could allow New Zealand to leap frog other batteries 53 EV batteries in mean that solutions to maximise the use of EV markets in Europe and Asia, when it comes to Figure 17: An example circular ‘value loop’ Scandinavia introducing solutions at the national level. batteries are likely to come from beyond the for large batteries 57 Sustainable New Zealand Product 49 automotive sector. Figure 18: The new Battery Ecosystem in Energy Storage Accelerator (NZPA) a new circular economy 58 Group Figure 19: Product Stewardship Scheme Scope 64 Victoria Aluminium ion battery 49 University, research Wellington Dynantis Sodium aluminium 49 Aotearoa battery research 4 5
foreword continued introduction, purpose What to do with EV batteries: How the problem – and potentially & scope of paper the solutions – will arrive first in New Zealand Vector’s vision is to Create a New Energy Future. A key part of By Ariel Muller, Managing Director, Asia Pacific, Forum for the Future this future is enabling distributed energy technologies including solar, EVs and batteries. We are heartened that Vector, a Partner of 2. Collaboration between private sector and the These technologies are part of Vector’s value mining of cobalt that uses child labour; and Forum for the Future, has taken the lead to government is needed, to introduce collective chain, and batteries are now an essential part the degradation of the salt flats in Bolivia in catalyse the conversation, acting as a “lighting frameworks such as a product stewardship of our lives, with the global battery market the search for plentiful lithium; the potential rod” to attract current and future actors scheme that will enable new market anticipated to be worth $100 billion by 2025. for thermal runaway fires from used batteries from both the public and private sector, who solutions. and the current lack of on-shore processing at can present solutions to realise a circular end-of-life in New Zealand. Add to this rapidly economy for batteries in New Zealand. Last 3. It is critical to bring consumers along from Mobile technology and a low- changing battery chemistries and the evolution year, we worked with Vector to convene over the start. They can help to shape new 30 stakeholders, from EV and battery retailers, markets and finesse new solutions in a carbon future are unthinkable of other technologies such as hydrogen. users, recycling and waste management rapidly changing landscape. without batteries, a core It’s a complex, dynamic and rapidly evolving solution providers, industry associations and The challenge is now for those who recognise technological enabler of the Fourth system. regulators, to innovative start-ups and interest groups. the opportunities to drive the change we need. Industrial Revolution. All organisations in the battery value chain need Maybe then what is first solved in New Zealand - World Economic Forum Global Battery Alliance to work together in ways we never have before Through an exploration of future scenarios of the can be shared with the world. to get in front of this challenge. We need to battery value chain in New Zealand, we agreed innovate to retain the value of the metals we dig Watch the kiwis. on three things: Batteries, particularly lithium-ion batteries power out of the earth. We need to invest in facilities everything from toys to cameras, computers, to manage our resources if we want a truly 1. The need to solve the problem of EV batteries power tools, energy storage, e-scooters and circular economy. We need to be flexible in our at end-of-life presents opportunities to create e-bikes, trains and now electric aircraft. The approach. new market offerings and services. Global Battery Alliance, a World Economic Forum (WEF) initiative, has called batteries a ‘backbone technology’ in the transition from The New Zealand Ministry for the fossil fuels to a low-carbon future. The Fourth Industrial Revolution, which WEF’s Founder and Environment defines a circular Executive Chairman Klaus Schwab argues we economy as an economy “in have entered, relies on the hyperconnectivity which we keep resources in use of products and technologies, and therefore, energy storage solutions. for as long as possible, extract the maximum value from them whilst Thanks to high power and energy densities, lithium-ion batteries are key to the Fourth in use, then recover and regenerate Industrial Revolution (4IR). One characteristic of products and materials at the end 4IR is the electrification of transport (E-mobility). of each service life.” This Paper focuses on large lithium-ion batteries, such as those used for energy storage or E-mobility which can be repurposed for second- Vector has been closely engaging with the life battery applications such as stationary Ministry for the Environment and we know energy storage for our electricity network, that a regulated Product Stewardship Scheme industry and households. for large batteries including lithium-ion is due to be developed as part of a suite of other They pose significant sustainability challenges schemes (see Technical Addendum for further (and by sustainability, we mean interconnected information). environmental, social and economic issues). As we transition to a low-carbon economy, in which Vector’s focus is on ‘large’ lithium-ion batteries E-mobility plays an increasing role, we all share for mobile (electric vehicle) and stationary some responsibility for managing batteries battery energy storage. Our view is that, if we as sustainably. industry proactively address repurposing and end-of-life solutions, we will be well positioned to Sustainability challenges include resource innovate and shape regulation to avoid a cost- extraction which is reportedly responsible for prohibitive model. half of the world’s carbon emissions and more than 80% of biodiversity loss1; unregulated 1 https://www.theguardian.com/environment/2019/mar/12/resource-extraction-carbon-emissions-biodiversity-loss?CMP=Share_iOSApp_Other 6 7
introduction, purpose who we talked to & scope of paper continued Industry needs key insights in order to plan for the future. These include: Purpose of this Paper We engaged with a number of stakeholders across the large battery value chain in New Zealand and beyond from the stakeholder groups below. Many thanks to those who We understand that we are not alone in asking contributed advice, data, information and support. • What are the likely volumes of batteries that these questions and we don’t attempt to answer will be coming to the end of their use / life, all of these in this Paper, rather these will be given trends and new technologies? addressed by a Battery Industry Group (B.I.G.) • What is the dollar value of a battery at focussed on large batteries. different points in its lifecycle, particularly Battery retailers and organisations such as PowerSmart NZ Ltd (part of the Vector group) As organisations across the battery value New Zealand Battery Leaders Group (which Vector founded and whose members include end-of-life? chain, we have a shared need to understand stakeholders on this list as well as Original Equipment Manufacturers such as Audi, BMW, • What is the impact of changing battery the potential regulatory, volume and market Toyota and stationary battery manufacturers). technology / chemistry? What about ‘scenarios’ that we will face over time. We have disruptive technologies such as hydrogen? therefore attempted to pull together all available What is the potential or need for data on the current battery ‘landscape’ here in Academic institutions Charging infrastructure providers standardisation of battery design and battery New Zealand and what opportunities are on the such as Victoria University e.g. ChargeNet storage? horizon. STAKEHOLDERS WE TALKED TO Our current ‘linear’ system of extracting Car wrecking individuals or companies • What are the second and third life Circular economy organisations such opportunities? materials from the ground to make a battery, Vehicle industry bodies such as Drive as the Circular Economy Accelerator, using a battery once then putting the ‘waste’ Electric, Electric Vehicles Leadership an initiative of the Sustainable Business • How can we safely use, store and transport battery into landfill at end-of-life is simply not Group, the Motor Industry Association, Network used batteries? sustainable. A commercially sustainable model will require a shift across the entire system. Vehicle Import / Industry Association • Can we have cost-effective on-shore end-of- Electricity distribution bodies, life solutions in New Zealand? We have a unique opportunity to work generators and organisations including together to find the answers, which is why we Sustainability consultants such as the BusinessNZ Energy Council (BEC) • Is there a cost to stewardship / end-of-life have commissioned research and engaged Forum for the Future and Eunomia and Sustainable Energy Association New management? If so, what is the cost, who stakeholders in thinking about a circular Zealand (SEANZ) should pay and by what mechanism? economy future for lithium-ion (and other) International battery and product batteries. In the interest of transparency, and in stewardship organisations such as Government agencies and • How will we need to engage with different the hope that it will benefit New Zealand Inc., Australian Battery Recycling Initiative departments such as the Ministry for the stakeholder groups (esp. customers and end we are sharing this information publicly in this (ABRI), Australia New Zealand Recycling Environment, Callaghan Innovation and users) to prepare them for the transition to a Paper. Platform (ANZRP), Clean Energy the Energy Efficiency and Conservation product stewardship scheme? How can we Authority (EECA) Council, Australia, Envirostream, ensure the appropriate plans are in place for Equilibrium, University of New South this transition? Wales Sustainable Materials Research Innovators in battery technology • If there is to be a Product Stewardship & Technology Centre, University of including circular economy innovators Scheme regulated by Government, to whom Technology Sydney’s Institute for and battery lifecycle management should it apply? How could we shape it so Sustainable Futures, ELVES and the technology innovators that it works for industry and delivers positive Faraday Institution environmental and social outcomes? Small businesses who engage with the informal battery economy such as BlueCars 8 9
scope: what’s in and what’s out This New Energy Futures Paper will: technologies which, in the literature, appear to be regarded as having the best chance of Size matters CASE STUDY: • Focus on large lithium-ion batteries. commercial viability in the next 10 years or Although small batteries, such as those found so. According to the world’s leading climate in toys, power tools and electric scooters are a • Identify opportunities for New Zealand in the context of a circular future. scientists, this, coincidentally, is approximately potential fire hazard at end-of-life management, Waste Management how long humans have to keep global warming to a maximum of 1.5oC, beyond which even half they are not a key part of Vector’s value chain. New Zealand (WMNZ) • Highlight environmental, societal and commercial barriers and challenges: by a degree will significantly worsen the risks of ‘Large’ batteries are made up of small battery Household (Small) Battery drought, floods, extreme heat and poverty for cells and while this Paper focusses on large tackling these challenges we will help to hundreds of millions of people. batteries, we recognise that we must align Recycling Programme Trial enable a new energy future. with any areas of synergy regarding end-of-life Waste Management is New Zealand’s leading management of small batteries in New Zealand. • Offer an overview of battery types and technology changes, how this impacts Lithium-ion vs lead-acid waste and environmental services provider Vector is interested in large batteries for energy and is committed to finding solutions for recovery options, key trends and market Given the Government’s focus on large batteries problematic waste streams. drivers. storage on the network, to help even out the including lithium-ion for regulated product ‘peaks and troughs’ of energy demand and for Waste Management Technical Services is stewardship (part of their E-waste commitment), • Introduce the concepts of a circular economy resilience. In addition, businesses which are part undertaking a trial to recycle household and that lithium-ion batteries are part of and product stewardship for batteries to of the Vector group sell large batteries as part batteries. Reusable battery material will be used Vector’s value chain, there is a focus on lithium- ensure we retain a battery’s financial and of their energy solutions for commercial and to make new batteries and other components ion technologies in this Paper. The Technical material value over its lifecycle. household use. – which means whole batteries will be diverted Addendum covers all batteries types with the exclusion of lead-acid. Vector currently uses a This Paper therefore focusses on large batteries, from landfill. • Explain the difference between materials recovery and battery recovery. lot of lead-acid batteries but these batteries defined by use to include batteries which are This trial aligns with Waste Management’s are currently considered to have viable end-of- used in: sustainability strategy For Future Generations • Share industry case studies. life recovery pathways and mature recycling • Electric vehicles (EVs) which provides the foundation for our future processes. In this Paper we are also pleased to All research supporting each section of this focus on the sustainability of their company and show case studies from innovators working with Paper, plus a discussion of battery chemistries • Stationary energy storage solutions i.e. for the communities in which they operate. various battery chemistries in New Zealand, and technologies beyond lithium-ion, is beyond lithium-ion. – The electricity network or ‘grid’ The programme will be trialled at various hotels, presented in a Technical Addendum. This is a aged care facilities and Refuse Transfer Stations, compilation and evaluation of available New Zealand data and provides future projections System vs product – Commercial or household energy storage and will work in parallel with a wider industry battery recycling working group to develop including recovery pathways, markets and Resource use and waste are systems challenges – Industrial applications solutions for rechargeable battery applications trends. that require systems thinking. This Paper such as electric trucks and cars. Knowledge sharing and collaboration is key if therefore focusses more on the battery ‘system’ we are going to get ahead of the impending Technology rather than batteries at a product level. Some systemic challenge of battery management in Once the trial is proven, this programme will be offered to other Waste Management customers. analysis of the embodied carbon of stationary New Zealand. We recognise that while storage, Development of battery technology is being batteries is provided in the Technical Addendum. transport and end-of-life management present Right: The new undertaken by a large number of organisations However, one systems area is not covered. common challenges / areas of synergy for Battery Recycling from major battery manufacturers and auto makers, to research institutions. By the time this This Paper doesn’t discuss the carbon both large and small batteries, other parts of Station prototype associated with the electricity that feeds (or the value chain such as retail, use and second to be trialled. Paper is launched or read, new technologies or charges) batteries. In New Zealand, while life opportunities may present very different chemistries may have emerged which will not approximately 82% of our electricity is generated challenges. be reflected in its content: rather, this Paper is a snapshot in time. from renewable sources2, so at first sight, We will therefore seek synergies with small electrification of transport (E-mobility) and battery management where possible and aim to There are many possible battery technologies, increased battery use makes sense for our align with emerging small battery activities such but one thing that all appear to have in common environment, society and economy. However, as on-shore collection e.g. through the Australia is that there is a long gestation period between it must be noted that renewable energy and New Zealand Recycling Platform3 (ANZRP) what is theoretically possible in a laboratory and generation mix in New Zealand has associated and end-of-life processing which is shortly to be the eventual commercial production of a viable carbon emissions, and of our energy generation piloted by Waste Management New Zealand – battery. In this Paper, we have focussed on the mix, only approximately 60% is low-carbon2. see the case study. 2 Data extrapolated from https://www.mbie.govt.nz/assets/d7c93162b8/energy-in-nz-18.pdf 3 https://www.anzrp.com.au/ 10
scope: what’s in and what’s out continued EV vs grid energy storage The aims of the Battery Leaders Group were to: Vector would like to thank the Battery Leaders Group for their contribution to the research and • In parallel, trial second life and end-of-life management of large lithium-ion batteries to • Be part of creating a vision for a commercially insights in this Paper. The Group is now forming inform the scheme. For those who know us as an electricity and environmentally sustainable, circular the core of a wider ‘Battery Industry Group’ distribution business, some may be surprised future for large lithium-ion batteries (B.I.G.) which will be creating a proposal for a • Share practical guidance regarding safe that in this Paper we don’t talk more about product stewardship scheme for large lithium- storage and transport of used lithium-ion batteries as energy storage solutions for the grid • Identify the reuse and end-of-life commercial ion batteries. This proposal to the New Zealand batteries. or other applications. Rather, the data focusses or financial value of a battery on batteries from EVs which can then be given Ministry for the Environment will be unique in a second life on the grid before being managed • Be better placed to advise vehicle leasing that it aims to: at end-of-life as part of a circular economy. This companies and second-hand retailers • Offer a flexible framework able to respond to is because in volume terms, most ‘end of use’ regarding the on-sell of batteries, currently different battery chemistries, technologies batteries will be coming from increasing use of one of the barriers to EV uptake and end-of-life management scenarios. EVs rather than the currently small proportion of batteries on the electricity network. • Understand the commerciality of battery reuse / recycling and what volumes we can expect The role of the Battery Figure 1. Battery Leaders Group Joint Statement Leaders Group • Understand our roles in product stewardship and shape the upcoming Government Businesses involved in the battery value chain Product Stewardship Scheme to avoid Working to improve our battery karma in New Zealand share significant common onerous, cost-prohibitive regulation which still delivers positive environmental and social challenges including the rapid uptake of renewable technologies in the context of climate outcomes Vector. Audi. BMW. Toyota New Zealand. The Scrap Metal change; the potential expansion of scope of Recycling Association of NZ. Waste Management. • Plan for customer and stakeholder China’s National Sword policy to include e-waste; engagement regarding battery reuse / end- As organisations across the battery value chain, These include both stationary batteries (e.g. used media and public attention on materials and of-life we share common sustainability challenges. in home energy storage) and mobile batteries waste management; a lack of on-shore recycling, and Government’s new focus on E-waste as a Once valuable metals and raw materials have (e.g. from electric vehicles) in the context of: • Demonstrate to Government that industry been taken out of the ground, it makes sense to priority issue. is being proactive and helping to create a • Climate change and the role of batteries in the retain their value for as long as possible, rather circular economy than returning them to the ground through decarbonisation of our energy and transport As discussed above, with the convergence of the transport and energy systems, there is also end-of-life disposal. systems • Demonstrate to wider stakeholders that work a unique opportunity for businesses from both is already underway in New Zealand to help • A rapid uptake of electric vehicles sectors to collaborate to drive change, support The convergence of transport and energy generate momentum systems means we have a unique opportunity to the emerging circular economy, and create the • Increasing use of battery storage in commercial environmental, societal and commercial future • Ensure clarity in the market regarding collaboratively drive change, contribute towards and residential applications we wish to see. messaging around lithium-ion batteries on building a more circular economy and create the repurposing options, including safety and environmental, societal and commercial future • Global developments in waste management In August 2018, Vector convened the Battery financial value we wish to see. Achieving a shift across the value and recycling, specifically the ongoing impacts Leaders Group to seek circular solutions chain will require pre-competitive collaboration. following implementation of China’s National for batteries. The Leaders’ Group members • Keep battery resources out of landfill Sword policy include Audi, BMW, the Scrap Metal Recycling That’s why we have convened this Battery Association of New Zealand (SMRANZ), Toyota • Help to create a New Energy Future Leaders Group. We are working together to research and New Zealand, Vector and Waste Management. evaluate the nascent New Zealand end-of-life Members represent different aspects of the What goes around, comes around battery market. Collaborating now will better battery value chain, from stationary and mobile prepare us – both as a country and as individual The Battery Leaders Group seeks circular market participants - to find sustainable battery manufacturers and retailers, to end-of- solutions for large batteries with a focus on solutions as the market emerges. life management. lithium-ion. 12 13
everything you want to know about lithium-ion batteries (and more) Legislative and Policy Context products were identified as one of six priority product groups and the potential scope includes However, when damaged lithium-ion batteries can cause thermal runaway fires or catastrophic Battery characteristics and The current legislative and policy environment large rechargeable batteries designed for use in explosions which threaten waste companies’ chemistries in New Zealand is broadly conducive to the electric vehicles, household-scale and industrial licence to operate. An additional complication is that lithium-ion batteries can be accidentally Batteries can have a range of performance uptake and expansion of battery systems, renewable energy power systems including but or purposefully hidden in pallets of used lead- characteristics which make them more or without there being any strong drivers (such not limited to lithium-ion batteries.6 The Battery acid batteries, thereby causing a fire hazard. less suitable for particular applications. Some as subsidies to purchase EVs, or emissions Leaders Group mentioned above undertook types of lithium-ion batteries have special standards), or impediments that would Finally, while lithium is fully recyclable, and research and stakeholder engagement with characteristics e.g. Lithium Nickel Manganese unduly limit battery uptake. The New Zealand reportedly being recycled in China, very Ministry support, and MfE representatives will be little lithium is recycled globally for battery Cobalt Oxide (NMC) batteries are well suited Productivity Commission 2018 report on the working closely with the new Battery Industry to high power applications with many charge/ Low-emissions economy recommends a production, as the processing of lithium from Group to advise on the development of a new used batteries is approximately five times discharge cycles such as home energy storage. number of minor changes to facilitate the product stewardship scheme for batteries. See below Table 1 for the main types of lithium- costlier that the virgin material.9 uptake of EVs and battery storage but does not ion battery cell chemistries. put forward any aggressive measures that would ensure an accelerated uptake. More recently, Lithium-ion battery the Government has indicated that there will be stronger incentives for EVs, by reducing the chemistries, characteristics upfront cost of electric, hybrid and fuel-efficient and construction Table 1: Main Types of Lithium-ion Battery Cell Chemistry vehicles when sold in New Zealand for the first time and putting a small fee on the highest Excluding lead-acid, which is outside the scope Type Description of power and operating range Applications polluting vehicles when they are first sold.4 of this Paper, there are two main types of large batteries that are most likely to have to be dealt Lithium Has a moderate specific power, moderate specific Electric powertrains The management of end-of-life/end of use with at end-of-life in New Zealand: lithium-ion Manganese energy and a moderate level of safety compared to batteries is, at present, largely unregulated. and nickel metal hydride (NiMH). This Paper Oxide other lithium-ion batteries. It is also low cost, but has At the time of writing, there are no product focusses on lithium-ion batteries and this section (LMO) a poor operating range and short lifespan. stewardship schemes in place for large batteries on their chemistries and characteristics. Nickel and, beyond the need to comply with export Lithium Nickel High specific energy. Moderate specific power, safety, EVs, industrial metal hydride batteries and detailed information requirements, there are no restrictions around Manganese lifespan and operating range. It can be optimised applications about lithium-ion batteries are discussed in the establishing e-waste and battery recycling Cobalt Oxide to have either a high specific power or high specific Technical Addendum to this Paper. operations. Other than voluntary codes of energy. (NMC) practice, there are currently no established The popularity of lithium-ion batteries is due procedures or guidelines for how end-of-life chiefly to their energy density. Other advantages Lithium Iron Low specific energy but a high specific power. Portable and stationary batteries should be managed. include: Phosphate Moderate operating range. High level of safety and applications needing high However, in May 2019 Hon. Eugenie Sage, (LFP) lifespan and low cost load and endurance - Reliability the Associate Minister for the Environment, announced “The Ministry for the Environment - They are less likely to suffer from ‘memory Lithium Very high specific energy. Moderate cost, specific EVs is developing a mandatory product stewardship effect’7 than other battery types Nickel Cobalt power, operating range and lifespan. Relatively low scheme for e-waste, starting with lithium-ion Aluminium level of safety - They don’t contain toxic cadmium batteries, which would make manufacturers Oxide responsible for managing the ‘end-of-life’ - Use of lithium-ion batteries in transport (NCA) aspects of their products.”5 avoid toxic tailpipe (exhaust) emissions / greenhouse gases which contribute to Lithium Titanate High safety good operating range and long lifespan, EVs In August 2019, a consultation document climate change (LTO) but low specific energy, and only moderate specific was published by the MfE, Proposed priority power. Very fast recharge time. Very high cost products and priority product stewardship - The cost of these batteries has drastically scheme guidelines. Electrical and electronic fallen8 4 https://www.newshub.co.nz/home/politics/2018/09/government-promises-decent-incentives-for-electric-cars.html 5 https://www.beehive.govt.nz/release/funding-e-waste-project-announced 6 https://www.mfe.govt.nz/publications/waste/proposed-priority-products-and-priority-product-stewardship-scheme-guidelines 7 https://phys.org/news/2013-04-memory-effect-lithium-ion-batteries.html Research from BloombergNEF shows that “the benchmark levelized cost of electricity (LCOE) for lithium-ion batteries has fallen 35% 8 to $187 per megawatt-hour since the first half of 2018 and the LCOE per megawatt-hour for lithium-ion battery storage has dropped by 76% since 2012, based on recent project costs and historical battery pack prices”https://about.bnef.com/blog/battery-powers-latest- plunge-costs-threatens-coal-gas/#_ftn1 9 Source: https://waste-management-world.com/a/1-the-lithium-battery-recycling-challenge 14 15
everything you want to know about lithium-ion batteries (and more) continued There are other metals used in cathodes apart from lithium, such as cobalt and manganese, Battery construction Figure 3: A Nissan Leaf Battery Pack and there are concerns about future supply of The method of construction varies between some minerals such as nickel and copper due to manufacturers and depends on the applications underinvestment in the mining sector10. for which they are intended. Figure 2 below provides some examples of these There may be several different components to other metals and their uses. a battery. These include:11 cells (EV battery packs for example may have hundreds of individual cells usually arranged in modules) a battery management system, cooling mechanisms and temperature monitors, relays (which control the distribution of the battery pack’s electrical power to the output terminals), temperature, voltage, and current sensors, cabling, contacts, metal and / or plastic casings and other electronics, such as inverters. While most of the weight of a battery generally consists of the cells, the other materials from a battery can potentially be recovered at end-of-life. Figure 2: Cathode composition of lithium batteries, excluding lithium. Image reproduced from (Electrek, 2016). 10 https://www.reuters.com/article/us-usa-lithium-electric-tesla-exclusive-idUSKCN1S81QS 11 https://en.wikipedia.org/wiki/Electric_vehicle_battery 16 17
current state of play: Key materials in lithium-ion batteries our linear system Lithium Cobalt Lithium, also known as ‘white gold’, is used as Mostly retrieved as a by-product from copper an electrolyte in lithium-ion batteries. Lithium and nickel production, cobalt is often used as mining, seen as a source of strategic advantage a ‘safe’, stable cathode material in lithium-ion in producer countries from Australia14 to the batteries. ‘Lithium Triangle’ of Argentina, Chile and Bolivia. In Bolivia15, where all natural resources have Sometimes called the ‘blood diamond of been nationalised, lithium mining has caused batteries’ from a conflict supply chain, cobalt water shortages impacting local farmers, and is regarded as the most strategic and highest What is a linear economy? Figure 4: Linear Economy13 toxic spills. A 2016 toxic chemical leak from the value material in the makeup of batteries. Ganzizhou Rongda lithium mine in the Tibetan The global market consumes in the order of Modern economies are based on a linear plateau damaged the local ecosystem, with 110,000 tonnes annually.18 Supplies of cobalt are economy model of ‘take make waste’ i.e. take linear economy dead fish and reportedly, cow and yak carcasses dominated internationally by the Democratic resources from the ground, make products, floating downstream, dead from drinking Republic of Congo (DRC) where unregulated create waste to landfill. Given that we are contaminated water16. and dangerous mining takes place, often currently using the Earth’s resources 1.7 times by children. Despite the 2017 Responsible faster than they are being replenished12, our WASTE The price of lithium has been climbing and Cobalt Initiative, long term security of supply, growing populations, the environmental and is currently over $12,000 per tonne. However, environmental pollution and human rights social impacts mentioned earlier in this Paper because lithium is a small fraction of the violations are noted as ongoing concerns.19 While TAKE MAKE DISPOSE plus increased demand for products means that NATURAL makeup of a lithium-ion battery (1-2%) the high it is recyclable, it is not routinely recovered at RESOURCES the linear economy is simply unsustainable. price of lithium is not expected to significantly end-of-life. In addition, cobalt tracks copper and impact battery prices. Although production nickel prices which can be too volatile to attract is projected to increase ahead of demand, investment in safer production. The impact of technical & biological materials mix up lithium supply is expected to remain tight as the high price of cobalt and uncertainties about energy from finite sources demand continues to grow. Price forecasts its supply have led to two key responses by the suggest that the cost of lithium will drop from industry: moving to battery designs that use recent peaks but is expected to remain high. As less cobalt and seeking to recover cobalt from mentioned above, lithium is 100% recyclable, but used batteries. Tesla, for example has stated that uneconomic to recycle. no cobalt will be used in the next generation of batteries.20 The linear battery value chain Figure 5 below provides an example lithium-ion battery value chain. In a typical linear model (business as usual), products end up in landfill, often a cheap alternative to recycling. Figure 5: An example linear battery value chain Recycling Battery Source Distribution Transport Image: Hundreds of trucks drilling under the Image: Unregulated ‘artisanal’ mining of Manufacture Import Retail Use Design Materials Logistics Used once-pristine Bolivian salt lake Salar de Uyuni cobalt in the DRC21 Batteries Landfill in the quest for lithium17 According to UNICEF and Amnesty International, around 40,000 children are involved in cobalt mining in DRC where they make only $1 – $2 USD per day. DRC’s cobalt trade has been the target of criticism for nearly a decade, and the U.S. Labor Department lists Congolese cobalt as a product it has reason to think is produced by child labor. More troubling, cobalt demand has tripled in the past five years and is projected to at least double again by 2020. Source: Union of Concerned Scientists – Science for a healthy planet and safer world https://blog.ucsusa.org/josh-goldman/electric-vehicles-batteries-cobalt-and-rare-earth-metals 14 https://www.csiro.au/~/media/EF/Files/Lithium-battery-recycling-in-Australia. PDF?la=en&hash=924B789725A3B3319BB40FDA20F416EB2FA4F320 15 https://www.smh.com.au/world/lithium-bolivia-20170523-gwb8me.html 16 https://www.wired.co.uk/article/lithium-batteries-environment-impact 17 https://www.smh.com.au/world/lithium-bolivia-20170523-gwb8me.html Photo: Matjaz Krivic, The Sydney Morning Herald 18 https://investingnews.com/daily/resource-investing/critical-metals-investing/cobalt-investing/top-cobalt-producing-countries-congo- china-canada-russia-australia/ 19 https://www.bloomberg.com/graphics/2018-cobalt-batteries/ 20 Musk, E: Retrieved from Twitter: https://twitter.com/elonmusk/status/1006968985760366592?lang=en 21 Source: Washington Post, September 30th 2016 – The Cobalt Pipeline Story https://www.washingtonpost.com/graphics/business/ 12 Ecological Footprint Explorer: http://data.footprintnetwork.org/#/ batteries/congo-cobalt-mining-for-lithium-ion-battery/?noredirect=on Story by Todd.c. Frankel, Photo: Michael Robinson Chavez, Video 13 Source: https://www.mfe.govt.nz/waste/circular-economy editing: Jorge Ribas, Washington Post 18 19
current state of play: our linear system continued Key materials in lithium-ion Retail & uses of large batteries Stationary Storage and/or stored closer to the point of demand, such as a household with a solar and battery batteries continued in New Zealand Stationary storage applications are expected to system, or an industrial facility with a wind increase significantly worldwide. Some forecasts turbine powering their manufacturing facility. Graphite Unless sold for network, home or industrial Distributed energy systems can use new or suggest that the stationary storage market will energy storage systems, the retail of batteries second-life EV batteries as a source of energy grow from approximately U$4 billion in 2017 to Graphite is the commonly used material for the takes place when an EV is sold. Given the clear during peak demand. Energy companies refer to US$35 billion by 2030.25 This is being driven by anode in lithium-ion batteries. majority of EVs in New Zealand are imported this as peak shaving. a shift towards renewable energy generation second-hand by a number of organisations EVs can have in the order of 50kg of graphite in like wind and solar that requires storage to (approx. 70% using 2018 import data), this The uptake of distributed energy systems will each battery pack. 75% of flake graphite is mined overcome the disconnect between when power complexity provides a challenge when take place within a wider context of potential in China. There are concerns over environmental is being generated and when it is being used. considering chain of custody issues as batteries changes to the energy sector as a whole. It is and labour practices, which has China’s graphite Manufacturing costs are expected to continue move from EVs to second or third life uses. likely that the changes afforded by technology industry under scrutiny – Chinese mines have to fall due to technical advances, economies of and changing demand profiles will see even been shut down due to a “government In New Zealand, large batteries are used in the scale and efficiencies throughout the supply distributed systems play a larger role in the crack down on pollution”.22 following broad applications: chain. Distribution costs have the potential to future. fall if these technologies are integrated and The US, Europe, Japan and South Korea are • Hybrid, plug-in hybrid and battery EVs leveraged. Energy companies such as Vector almost entirely dependent on imported are also installing stationary storage to manage Applications: Utility and graphite; therefore, the US and the EU have • Stationary storage for local use (such as peak loads within networks and to provide declared graphite a supply-critical mineral. Very storage of solar power and for off-grid backup power in the event of disruption of Industrial little recycling of graphite takes place, and there systems) supply. Finally, a further benefit of the use of There is over 20 MWh of network utility and are almost no substitutes for the material. This stationary energy storage solutions is that it industrial large battery storage capacity installed • Stationary storage for utilities has led to an increase in the price of graphite of offers a cost-effective alternative to traditional or due to come on-line in the near future in over 40% in the last 6 months.23 • Stationary storage for household use energy infrastructure. New Zealand. Two recent examples of large scale battery storage also used for industrial One forecast is that the battery anode market for graphite (natural and synthetic) will at least • Buffer units for fast charging stations Distributed energy applications totalling 5MWh are: the Glen Innes substation established by Vector (see case study triple in size from 80,000 tonnes in 2015 to at • Industrial applications (such as cellphone Distributed energy generation and storage below), and a second by Mercury Energy in least 250,000 tonnes by the end of 2020.24 towers or data centres) refers to systems where electricity is generated South Auckland, both using Tesla Powerpacks. There are also a range of potential emerging uses. For example, technology start-ups such Figure 6: Growth of the Stationary Storage Market26 as Kitty Hawk and Zunum are investing in electric planes, and ships are using large battery power to manoeuvre into port to reduce local emissions. Image22: Graphite miner 22 http://www.energystoragejournal.com/2019/02/21/graphite-production-to-move-west-as-china-supply-chain-to-halve/ 25 https://www.gminsights.com/pressrelease/stationary-battery-storage-market 23 ttps://investorintel.com/sectors/technology-metals/technology-metals-intel/northern-graphite-becoming-an-important-market-player/ h 26 https://www.prnewswire.com/news-releases/stationary-battery-storage-market-worth-170bn-by-2030-global-market-insights- 24 http://www.visualcapitalist.com/critical-ingredients-fuel-battery-boom/ inc-300803606.html 20 21
current state of play: CASE STUDY: Envirostream our linear system continued Around 18,000 tonnes of batteries require disposal each year in Australia and over 95% end Envirostream has constructed a commercially viable battery recycling plant that can recover up in landfill posing a significant environmental around 95% of the material including the copper, risk. As Australia’s first and currently only lithium steel, aluminium and a graphene metal oxide battery processor, Envirostream is committed to which is used as an input material in cathode Applications: Household reducing batteries in landfill by recovering the materials onshore and sending them back into manufacture. In household applications, batteries typically the manufacturing sector to be made into new It’s not only Envirostream’s material recovery support solar photo-voltaic (PV) systems to products, including cathode material for new that is circular, the economics are too. By CASE STUDY: batteries. utilising revenue from the recovery of materials, optimise solar self-consumption, meaning a household consumes most of the solar it the front-end costs can be reduced to challenge generates and only exports a small amount to This is a true circular business model designed landfill as the cheapest option, in some cases to challenge the last decade of expensive battery removing the cost to recycle batteries in Vector Glen Innes substation the grid. recycling that has led to only a 5% recovery Australia altogether. In 2016, the then Minister of Energy and The number of domestic battery storage units rate. Based on over two years’ continuous R&D, Innovative Resource Recovery Resources officially opened Vector's renovated installed is currently small with approximately Glen Innes substation, home to Asia Pacific's 1-1.5MWh installed per year, however there is ENVIROSTREAM SYSTEM first grid scale Tesla Powerpack battery potential for growth particularly if adoption of storage system to be integrated into a public standalone rooftop solar was incentivised by The revolutionary Envirostream system is the result of two years of research and development. Our ISO 14001 accredited, modular electricity network. With a storage capacity regulation, or the economic case was made processing technology can process 40 tonnes per line, per month. We operate two dedicated, enclosed processing lines that can process 80 tonnes of batteries per month combined. Making expansion easy, we constructed the Envirostream system with efficiency in mind. The of 1MW/2.3MWh - the equivalent to powering more attractive through cheaper storage. This modular design lets us carry out line maintenance without compromising our processing ability and can be placed anywhere in Australia. 450 average homes for 2.3 hours - Tesla could be provided through new or second- For mixed consignments, we have developed an effective battery sorting solution. At Envirostream, we’re one step ahead. Powerpack allows Vector to continue to provide life batteries. There are an estimated 15,000 a secure, reliable power supply and defer a households in NZ that are generating their own conventional upgrade to the substation. This electricity27, however there is no official data move represented a radical transformation in on what proportion of these also have battery WASTE how Vector manages its electricity network storage. and responds to the need for innovative infrastructure development to support growing communities. End-of-life collection EV & HYBRID VEHICLES ELECTRONICS POWER TOOLS ENERGY STORAGE SYSTEM POWER GENERATION & disposal Lead-acid battery recycling is effective for several reasons: - Standard design and disassembly protocols BATTERY d TYPES NiC - A single chemistry type PLEASE SUPPLY HIGH RES - Lead-acid battery recycling generates LITHIUM ALKALINE NICKEL METAL NICKEL LEAD ACID (LI-ION) HYDRIDE (NiMH) CADMIUM (NiCd) revenue ie. currently the value exceeds recycling costs - No need for segregation, plus ON-SHORE BATTERY PROCESSING SPECIALIST SPECIALIST LEAD ACID CADMIUM PROCESSOR PROCESSOR - Regulation making it illegal to dispose to (in Australia) landfill. Unfortunately, each of these factors varies for PROCESS lithium-ion and other battery types, making them harder to manage at end-of-life. Notably, at the time of publication, there are no large-scale pre-processing, processing or full recycling facilities for large lithium-ion batteries in New Zealand although this is ENVIROSTREAM being investigated by several organisations. PROCESS Pre-processing plants break up batteries to be safe for transport by e.g. discharging them or removing cells. The nearest pre-processing facility to New Zealand is Envirostream in MATERIAL OUTPUT Victoria, Australia, which undertakes pre- STEEL COPPER ALUMINIUM MIXED METAL COMPOUND processing and processing to produce mixed metal dust used in other batteries. 27 https://www.canstarblue.co.nz/energy/electricity-providers/battery-storage/ Envirostream Australia Pty Ltd E. info@envirostream.com.au P. 1800 72 72 74 www.envirostream.com.au 22 23
current state of play: our linear system continued End-of-life EV batteries: Modelling by Eunomia commissioned by Vector suggests between 500 and 1,000 EV batteries flow of end-of-life EVs is also apparent from the above projection. CASE STUDY: Toyota Volumes and Approaches coming to the end-of-life by 2020 rising to In addition to the above projection Eunomia between 9,000 and 17,000 by 2025 and 30,000 Toyota has a global commitment to resource To date, end-of-life electric vehicles have been also modelled a number of alternative scenarios to 84,000 by 2030. Because stationary storage with some varying assumptions including the efficiency and the recycling of vehicle parts, only a minor issue for New Zealand due to the applications are still a small (but growing) part such as Toyota and Lexus hybrid batteries. government targets not being met, a higher small numbers involved. Since 2014 only 181 of the market and have longer lifespans, the This includes investing in battery second-life proportion of new vehicles and the impact of EVs have been scrapped from the fleet in New numbers of batteries reaching end-of-life from an assumed longer life for EV batteries. These applications and new recycling facilities. Zealand although the numbers are rising with such uses is expected to remain relatively small projections are provided in the Technical In New Zealand, Toyota takes a value chain 49 scrapped in 2018, and 81 so far in 2019. Over between now and 2030. Addendum. approach to environmental impacts, half (101) of the EVs scrapped are Nissan Leafs, demonstrated through its nationwide collection Assumptions detailed in the Technical In brief, if the adoption of EVs follows a similar with these numbers also rising.28 It should be of hybrid batteries that have reached their end Addendum suggest that by 2030 there profile to global forecasts this would suggest noted that the numbers of vehicles scrapped between 880 batteries coming to the end of life of their life. The collection takes place through could be nearly 84,000 end-of-life EV battery Toyota Stores, and includes a $100 bounty for is not the same as the number of end-of-life by 2020 rising to 9,500 by 2025 and 30,000 per packs requiring management each year. The batteries returned from vehicle dismantlers. batteries, as when battery packs reach the end annum by 2030. projection is shown in the chart below. Toyota New Zealand (TNZ) corporate and dealer of their life (estimated at 10 - 15 years) they may In the other alternative scenario, if the vehicle operations and premises are independently be replaced in the vehicle, which continues The chart illustrates the potentially steep audited and certified to Enviro-Mark Diamond fleet composition targets are met, but the fleet to operate. There is no data available on the trajectory that is likely to be facing the industry if is assumed to have a higher proportion (50%) or ISO 14001 certification, to ensure customer numbers of vehicles that have had battery packs the adoption of EVs takes place at forecast rates. of NZ new vehicles in its makeup, and a longer confidence in Toyota’s environmental replaced. The influence of the used car market on the average battery life of 12 years is assumed, this management processes. Technicians are trained would reduce the total number of end of life in the safe removal, handling, transport and batteries to 54,000 per annum by 2030. storage of batteries. Figure 7: Estimates of end-of-life EV Battery Packs 2019-2030 TNZ has partnered with Upcycle Limited to strip The approaches taken by manufacturers to end- of-life vary. Two manufacturers offer a take back the metals and plastics (which are diverted to service for end-of-life vehicles, with one offering local recycling systems) and send the cells to a $100 bounty for people to bring them in. This Kobar Limited in South Korea (the closest of the 90,000 few global facilities equipped to recycle cells) for applies to both new and used vehicles imported to New Zealand. The batteries are consolidated material recovery and re-use. Both Upcycle and 80,000 and then shipped via a local recycler to South Kobar are ISO 14001 certified. Korea for processing. Other manufacturers have 70,000 a policy of shipping the batteries back to their Toyota New Zealand is committed to sustainable factory for disassembly and reuse or recycling business practices, and supportive of the 60,000 of the constituent parts. Tesla, for example, development of battery re-purposing and operates a battery recycling programme material re-use in New Zealand. 50,000 together with Umicore (pyrometallurgy) in Europe (Tesla, 2011). This programme applies 40,000 to New Zealand customers but logistics are a challenge: battery shipments need to have 30,000 proper paperwork complying with the Basel Convention on the Control of Transboundary 20,000 Movements of Hazardous Wastes and their Disposal. 10,000 0 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 New Used Total 28 https://www.transport.govt.nz/resources/vehicle-fleet-statistics/monthly-electric-and-hybrid-light-vehicle-registrations-2/ 24 25
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