废旧磷酸铁锂电池回收方法研究  

Recycling of Waste Lithium Iron Phosphate Batteries

作　　者：王华 王文秀 张铎 熊曙 马鑫 WANG Hua;WANG Wenxiu;ZHANG Duo;XIONG Shu;MA Xin(China Energy Engineering Group Equipment Co.,Ltd.,Beijing 100044,China)

机构地区：[1]中国能建集团装备有限公司,北京100044

出　　处：《电力勘测设计》2023年第12期49-54,60,共7页Electric Power Survey & Design

摘　　要：磷酸铁锂电池是在动力领域最早使用、在储能领域最大规模使用的锂离子电池。废旧磷酸铁锂电池是锂电池回收的主要对象。归纳废旧磷酸铁锂电池整体梯次利用以及正极材料回收的技术方法。传统的火法、湿法及火法湿法联合使用技术成熟,是目前主流的回收方式。修复再生法及低共熔溶剂浸出回收法是新型回收方法,在经济性、环保性等方面具有明显优势。阐述修复再生法中具有代表性的固相再生法、水热再生法以及电化学再生法,并对低共熔溶剂浸出回收法的回收原理、低共熔溶剂种类以及该方法的应用前景进行介绍。Lithium iron phosphate is the earliest used in power and largest-scale applied in energy storage field lithium-ion battery.Waste lithium iron phosphate battery is a major target in lithium battery recycling.This article systematically summarizes the methods of cascade utilization and cathode materials reusing for waste lithium iron phosphate battery.Currently the mainstream recycling ways are the pyrometallurgy,hydrometallurgy and combined use of the two.Direct regeneration and deep eutectic solvents technology are new types in battery recycling filed.They have obvious advantages in terms of economy and environmental protection.In direct regeneration side,the solid phase regeneration,hydrothermal regeneration,and electrochemical regeneration methods are elaborated.In deep eutectic solvents side,recycling mechanism,solvents types and the application prospects are mentioned.

关 键 词：废旧磷酸铁锂电池 回收 梯次利用 低共熔溶剂浸出回收法 

分 类 号：TM6[电气工程—电力系统及自动化]