炭黑
材料科学
电池(电)
废物管理
化学工程
热处理
锂离子电池
化学
锂(药物)
阴极
复合材料
工程类
物理
内分泌学
物理化学
功率(物理)
天然橡胶
医学
量子力学
作者
B.A. Ross,Michael LeResche,Donghao Liu,Jessica L. Durham,Erik U. Dahl,Albert L. Lipson
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2020-07-28
卷期号:8 (33): 12511-12515
被引量:32
标识
DOI:10.1021/acssuschemeng.0c03424
摘要
Li-ion battery recycling will become critical to the management of end-of-life batteries from electric vehicles. Currently, it is a challenge to create a profitable recycling process, which is made more difficult by the reduction in cathode cobalt content. Maintenance of the cathode structure throughout the recycling process can yield increased revenues that may make recycling profitable. This method will require careful removal of the PVDF binder and carbon black, which can be achieved through thermal processing. It is necessary to mitigate the effects of the fluorine from the PVDF on the cathode material. Herein, we report a process that utilizes excess LiOH·H2O to react with this fluorine and thereby prevent lithium removal and doping of the cathode material. In addition, we demonstrate a one-step thermal process that can both remove the binder and relithiate the cathode material.
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