Environmental-friendly and effectively regenerate anode material of spent lithium-ion batteries into high-performance P-doped graphite

Xiuying Yang,Honggang Zhen,Haozhou Liu,Chaojiu Chen,Yanjun Zhong,Xiushan Yang,Xinlong Wang,Lin Yang

Waste Management（2023）

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摘要

•Direct regeneration of anode material into high-performance P-doped graphite.•The mechanism of phosphorus change during calcination was revealed.•The P-doped graphite promotes the formation of SEI and widens layer spacing.•The regenerated battery has outstanding reversibility and cycle performance.

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关键词

Spent graphite,Purification,Phosphoric acid,Recycling,Leaching

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