Rejuvenating LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode directly from battery scraps

作     者：Yaqing Guo Chi Guo Pengjie Huang Qigao Han Fuhe Wang Hao Zhang Honghao Liu Yuan-Cheng Cao Yonggang Yao Yunhui Huang Yaqing Guo;Chi Guo;Pengjie Huang;Qigao Han;Fuhe Wang;Hao Zhang;Honghao Liu;Yuan-Cheng Cao;Yonggang Yao;Yunhui Huang

作者机构：State Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074 China State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Optoelectronic Chemical Materials and DevicesMinistry of EducationSchool of Optoelectronic Materials&TechnologyJianghan UniversityWuhan 430056China 

出 版 物：《eScience》 (电化学与能源科学（英文）)

年 卷 期：2023年第3卷第2期

页      面：112-122页

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：This project was supported by the fund from the National Key R&D Program of China(2022YFB2404303,2021YFA1202300) the National Natural Science Foundation of China(NSFC No.5202780089,52107224) the Fundamental Research Funds for the Central Universities,HUST:2021GCRC046 

主　　题：Battery scrap Battery recycling Air degradation Cathode regeneration Techno-economic analysis 

摘      要：Battery recycling is indispensable for alleviating critical material shortages and enabling sustainable battery ***,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 ***,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 *** 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 *** 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.