Direct regeneration of spent LiFePO 4 via a graphite prelithiation strategy

The capacity degradation mechanism of a spent LiFePO 4 (LFP) cathode was investigated systematically and the occurrence of FePO 4 in the cathode due to loss of Li + was found to be mainly responsible for the short cycle life of LFP batteries. Given this, an easy, low-cost, and green cathode regenera...

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Published inChemical communications (Cambridge, England) Vol. 56; no. 2; pp. 245 - 248
Main Authors Wang, Tao, Yu, Xiaoshuang, Fan, Min, Meng, Qinghai, Xiao, Yao, Yin, Ya-Xia, Li, Hongliang, Guo, Yu-Guo
Format Journal Article
LanguageEnglish
Published 2020
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Summary:The capacity degradation mechanism of a spent LiFePO 4 (LFP) cathode was investigated systematically and the occurrence of FePO 4 in the cathode due to loss of Li + was found to be mainly responsible for the short cycle life of LFP batteries. Given this, an easy, low-cost, and green cathode regeneration method was proposed. This work provides a new perspective for the recycling of spent batteries.
ISSN:1359-7345
1364-548X
DOI:10.1039/C9CC08155K