| Title | Circular economy strategies for electric vehicle batteries reduce reliance on raw materials |
|---|---|
| ID_Doc | 28142 |
| Authors | Baars, J; Domenech, T; Bleischwitz, R; Melin, HE; Heidrich, O |
| Title | Circular economy strategies for electric vehicle batteries reduce reliance on raw materials |
| Year | 2021 |
| Published | Nature Sustainability, 4.0, 1 |
| Abstract | New battery chemistry can help reduce the reliance on Co for electric vehicles. However, to avoid burden shifting to other resources such as Ni, circular economy strategies with enhanced battery traceability and recycling could contribute substantially to the reduction of primary Co demand from the automotive industry. The wide adoption of lithium-ion batteries used in electric vehicles will require increased natural resources for the automotive industry. The expected rapid increase in batteries could result in new resource challenges and supply-chain risks. To strengthen the resilience and sustainability of automotive supply chains and reduce primary resource requirements, circular economy strategies are needed. Here we illustrate how these strategies can reduce the extraction of primary raw materials, that is, cobalt supplies. Material flow analysis is applied to understand current and future flows of cobalt embedded in electric vehicle batteries across the European Union. A reference scenario is presented and compared with four strategies: technology-driven substitution and technology-driven reduction of cobalt, new business models to stimulate battery reuse/recycling and policy-driven strategy to increase recycling. We find that new technologies provide the most promising strategies to reduce the reliance on cobalt substantially but could result in burden shifting such as an increase in nickel demand. To avoid the latter, technological developments should be combined with an efficient recycling system. We conclude that more-ambitious circular economy strategies, at both government and business levels, are urgently needed to address current and future resource challenges across the supply chain successfully. |
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