Should retired electric vehicles stay in Japan or overseas? A social and technological assessment framework

Research Project

Project/Area Number	24K15399
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Review Section	Basic Section 64060:Environmental policy and social systems-related
Research Institution	The University of Tokyo
Principal Investigator	ティアヘンイ東京大学, 大学院工学系研究科(工学部), 特任講師 (70822485)
Project Period (FY)	2024-04-01 – 2027-03-31
Project Status	Granted (Fiscal Year 2024)
Budget Amount *help	¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000) Fiscal Year 2026: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2025: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000) Fiscal Year 2024: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords	spent batteries / secondhand EV / repurposed battery / battery life cycle / developing countries
Outline of Research at the Start	Japan's EV push creates a future wave of used batteries. How should we manage them sustainably? Reuse and recycle the batteries locally? Export the secondhand EVs to developing countries? We propose a new environmental and socio-economic assessment framework to facilitate the policy discussion.