这是一篇陶瓷及复合材料领域的论文.随着新能源汽车产业迅速发展,动力锂离子电池产量急剧增加.然而,由于动力锂离子电池使用寿命短,即将面临大规模退役,因此对动力锂离子电池进行有效资源化管理十分必要.本文首先对动力锂离子电池主要组成成分进行介绍,并阐明了其进行正极材料回收前梯次利用和预处理进程,重点综述了废旧动力锂离子电池正极材料火法、湿法和生物法回收技术,提出了生物法回收在废旧动力锂离子电池正极材料资源化处置问题上面临机遇与挑战.本文成果将为动力锂离子电池绿色资源化回收提供参考,促进新能源汽车产业健康发展.
This is an essay in the field of ceramics and composites.With the rapid development of the new energy vehicle industry,the production of power lithium-ion batteries has increased dramatically.However,due to the short service life of power Li-ion batteries and their imminent mass retirement,it is necessary to effectively manage power Li-ion batteries in a resourceful manner.This paper first introduces the main components of power lithium-ion batteries and clarifies the stepwise utilization and pre-treatment process before their cathode materials are recycled.It focuses on an overview of the thermal,wet and biological recycling technologies for used power lithium-ion battery cathode materials,and presents the opportunities and challenges faced by biological recycling in the resourceful disposal of used power lithium-ion battery cathode materials.Our results can provide a certain reference for the green resource-based recycling of power lithium-ion batteries and promote the healthy development of the new energy vehicle industry.