What question did this study set out to answer?

To assess trade-offs in climate impacts among various circular economy strategies for lithium-ion batteries in Japan.

Assessing Trade-Offs in Climate Impacts across Various Circular Economy Strategies for Japan’s Battery Industry

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Randomized trial assesses trade-offs in battery climate strategies, revealing substantial emissions reduction potential.

To assess trade-offs in climate impacts among various circular economy strategies for lithium-ion batteries in Japan.
Developed a dynamic assessment framework combining material flow analysis and life-cycle GHG accounting.
Evaluated trade-offs under varying demand for vehicle batteries and battery energy storage systems.
Analyzed scenarios based on an 8-year warranty lifetime for reusable electric vehicle batteries.
By 2050, reusable electric vehicle batteries are projected to reach 225 GWh, meeting most energy storage demand.
Implementing both reuse and recycling can reduce cumulative battery emissions by 20-30% over single-strategy scenarios.
In the early stage (2022-2035), extending battery lifetime in electric vehicles offers greater emissions reductions compared to reuse and recycling combined.

He et al. (2026) studied this question.

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