文献类型：期刊文献

英文题名：A novel electrochemical redox method for the simultaneous recovery of spent lithium-ion battery cathodes and anodes

作者：Kong, Jiao[1];Zhou, Shiyu[1];He, Ting[1];Gu, Shuai[1,2];Yu, Jianguo[1,2]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake Re, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Joint Int Lab Potassium & Lithium Strateg Resource, Shanghai 200237, Peoples R China

年份：2023

卷号：25

期号：10

起止页码：3956

外文期刊名：GREEN CHEMISTRY

收录：;EI(收录号：20231914080496);WOS:【SCI-EXPANDED(收录号:WOS:000975741100001)】；

基金：This research was sponsored by the Shanghai Sailing Program (Grant Number 21YF1409000) and the Nature Science Foundation of Shanghai (Grant Number 22ZR1415800).

语种：英文

外文关键词：Anodes - Cathodes - Electronic Waste - Energy utilization - Leaching - Life cycle - Lithium-ion batteries - Recycling

摘要：With the rapid development of the electric vehicle industry, an enormous amount of spent lithium-ion batteries (LIBs) has been generated. However, the traditional electrochemical recycling method suffers from high cell potentials (E-cell) and environmental burdens. In addition, anode material recycling has not always attracted much attention. Herein, the strategy of oxidizing an anode current collector and the concept of a "sandwich-type" electrode structure is proposed, which enables the recycling of both spent cathode and anode materials simultaneously in a low energy consumption manner. Electrochemical leaching experiments demonstrate that the proposed method outperforms traditional ways with lower E-cell values (<1 V), higher leaching ratios (>98% Li+ and Co2+), and a shorter pretreatment process. Meanwhile, the Al foil and graphite are separated from the electrode residues from spent LIB cathodes and anodes, respectively. The recovered graphite can be reutilized for the re-manufacture of anode materials. The life cycle assessment uncovers that the proposed electrochemical process shows a significant reduction of the environmental and human health impacts compared with traditional processes.