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Rejuvenating LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode directly from battery scraps 被引量:1
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作者 Yaqing Guo Chi Guo +7 位作者 pengjie huang Qigao Han Fuhe Wang Hao Zhang Honghao Liu Yuan-Cheng Cao Yonggang Yao Yunhui huang 《eScience》 2023年第2期112-122,共11页
Battery recycling is indispensable for alleviating critical material shortages and enabling sustainable battery applications.However,current methods mostly focus on spent batteries,which not only require sophisticated... Battery recycling is indispensable for alleviating critical material shortages and enabling sustainable battery applications.However,current methods mostly focus on spent batteries,which not only require sophisticated disassembly and material extraction but also have unknown chemistries and states of health,resulting in high costs and extreme challenges to achieve regeneration.Here,we propose the direct recycling and effective regeneration of air-degraded LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2)(NCM523)cathode directly from battery scraps generated during battery manufacturing.The NCM523 shows surface degradation only a few nanometers deep and accordingly can be regenerated without adding Li,achieving restored properties(170 mAh g^(-1) at 0.1 C,92.7%retention after 1000 cycles)similar to those of fresh commercial materials.EverBatt analysis shows that scrap recycling has a profit of$1.984 kg^(-1),which is~10 times higher than conventional recycling,making it practical and economical to rejuvenate slightly degraded electrode materials for sustainable battery manufacturing. 展开更多
关键词 Battery scrap Battery recycling Air degradation Cathode regeneration Techno-economic analysis
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