工程科学学报,第46卷,第5期:949-962,2024年5月Chinese Journal of Engineering. Vol.46,.No.5:949-962.Mav2024htps/oi.or 1.13314/jisn2095-93892023.08.16.00;ht,.kje usb.ed.cn失效锂离子申池石墨负极回收利用研究讲展丁云集123,史志胜"。张深根!回北京科技大学新材料技术研究院金属材料循环利用研究中心北京100832)北京科技大学顺德创新学院,佛山/5283993中国石化摘要新能源汽车产业发展是实现我国“双碳”战略的重要举措,石墨因其高导电率、高容量和高稳定性等优点,成为当前主流的负极材料，其需求量和报废量增长迅速，废石墨负极因含多种金属、黏结剂、电解液等,具有污染性和资源性双重特点,其高效清洁回收利用成为人们研究的热点与重点问题,首先介绍了全球石墨矿产资源分布及其消费结构,表明我国石!资源较为丰富(约占全球15.7%),但产量与消费量全球第一,分别达到65.4%和86.6%,且电池负极消费比重日益增长,为提高石墨负极利用水平,系统踪迹了石暨负根回收利用研究进展,闸进了石盛负极的再生方法，包括物理法、湿法设出、火法及其他方法,为进一步提高再生石墨负极的电化学性能,改性技术(如元素接杂、碳包覆、复合等方法)也受别人们的广泛关注此外,还概括了石墨负极合成的其他新型功能材料.如石墨烯及氧化石墨烯、电容器、吸附剂和催化剂等.为石墨负极高值利用提供了新的选择,最后,总结了负极石墨材料回收利用的技术瓶颈和面临的挑战,为其绿色高效循环利用提供了研究思路和发展方向关键词石极:失效锂离子电池:再牛:回收:再利用分类号Prooress on recvcling graohite cathode from spent lithium-ion batteries2)Shunde Innovation Schoal, Univ arsity of Science and Technology Beijing, Foshan 528399, China3)Intute o Einginering Techmolygy,SINO)PECCaralys Co,Itd, Bajing 1011,ChinaBCoresondingator. E-mal hamgherngrn @matur sheduconABSTRACT The rapid development of the new energy vehicle industry promotes the achievement of "dual-carbon"gpals. Graphitcapacity, and stability. Demand for graphite and theown anidly wih te boming of the Li-batey wehice indasty. Wase graphite cahods area: Hence, eficient and dean recyling of spentgraphitehas recentlvolthal distibution of minea resources and he consumptonquite abundant approximately 15.7% of the world'snChina is65.4% and 86.6% of the global total, respectively. Its use ineparation, hydrometallurgical leaching,:国家自然科学基金资助项目(52204412,U2002212);佛山市科技创新专项资金资助项目(BK21BE002);中央高校基本科研业务费资助项目(FRF-TP-20-031A1)
950工程科学学报,第46卷,第5期pyromeallury, and othe metods, are elaboraed Graphite molification method e., lemen doping, carbon cating, and materialcompositing) used to enhance the electrochemical properties of regenerated graphite are sum marized, Furthermore, the preparation ofcapacitors, adsorbents, and catalysts. However, because of the differences in graphite anode material manufacturers and variouof falures and damage levels, obtaining uniform high-performance graphite produc ts is highly challenging. The environmentalnlv achieve a sinele goal. such as the purification of graphite by acid leachine. Therefore. aand ficient rces mut be devebped to achiev high-performance graphite products. More importantly, for graphite全球化石燃料过度使用致能源危机和环境问3分:分离和利用.通常、失效锂题日益凸显.为此,能源的转型升级成为必然的求,我国及世界各国大力发展绿色清洁能源相中收工里U牛新锂离子由池中分化石能源占比不断下降,助力“双...
