Electrode separation via water electrolysis for sustainable battery recycling

Fangzhou Yang, Xinlong Chen, Ge Qu, Quan Nie, Ganxiong Liu, Wang Wan, Tanyuan Wang, Sa Li (), Yunhui Huang (), Ju Li () and Chao Wang ()
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Fangzhou Yang: Tongji University
Xinlong Chen: Tongji University
Ge Qu: Tongji University
Quan Nie: Tongji University
Ganxiong Liu: Tongji University
Wang Wan: Tongji University
Tanyuan Wang: Huazhong University of Science and Technology
Sa Li: Tongji University
Yunhui Huang: Huazhong University of Science and Technology
Ju Li: Massachusetts Institute of Technology
Chao Wang: Tongji University

Nature Sustainability, 2025, vol. 8, issue 5, 520-529

Abstract: Abstract Recycling large quantities of lithium-ion batteries facing retirement is pivotal for resource conservation and environmental sustainability. Direct recycling, while offering a promising avenue with reduced waste compared with pyrometallurgy and hydrometallurgy, often involves intricate and long processes. Here we introduce a water electrolysis-induced separation approach, using H2 or O2 gas bubbling to efficiently separate electrode materials from current collectors. The process achieves 99.5% materials recovery with metal impurities

Date: 2025
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DOI: 10.1038/s41893-025-01539-3

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