摘要
随着锂离子电池的广泛应用,大量的废旧锂离子电池产量逐年增加,由于负极材料容量较低(≈175 mAh·g^(-1))以及需要较高的工作电势,硅负极材料仍然处于研究阶段,所以对大量的退役锂离子电池石墨负极进行高效回收直接再生具有重要的现实意义。为此,本文介绍近年来废旧锂离子电池石墨负极材料回收利用研究现状,分析废旧石墨负极常用回收利用方法优缺点,主要包括火法回收、湿法回收和材料再生等方案,并对废旧锂离子电池石墨负极材料的高效、绿色回收利用进行了展望。
With the wide application of lithium-ion batteries,the output of a large number of discarded lithium-ion batteries has increased year by year.Due to the low capacity of negative electrode materials(≈175 mAh·g^(-1))and the need for high working potential,silicon negative electrode materials are still in the research stage,so it is of great practical significance to efficiently recycle and directly regenerate a large number of graphite negative electrodes of retired lithium-ion batteries.For this reason,this paper introduces the research status of recycling of graphite anode materials for waste lithium ion batteries in re-cent years,analyzes the advantages and disadvantages of common recycling methods for waste graphite anode materials,mainly including fire recycling,wet recycling and material recycling,and looks forward to the efficient and green recycling of graphite anode materials for waste lithium ion batteries.
作者
赵晓惠
孟奇
董鹏
ZHAO Xiao-hui;MENG Qi;DONG Peng
出处
《有色设备》
2023年第1期12-15,共4页
Nonferrous Metallurgical Equipment
基金
国家自然科学基金(51804148)
云南省科技厅-昆明理工大学“双一流”创建联合专项面上项目(202201BE070001-027)。
关键词
废旧锂离子电池
石墨
回收利用
预处理
火法回收
湿法回收
材料再生
Waste lithium-ion batteries
Graphite
recycling
Pretreatment
Fire recovery
Wet recover-y
Material recycling
