Direct lithium extraction from spent batteries for efficient lithium recycling

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：The flourishing expansion of the lithium-ion batteries(LIBs)market has led to a surge in the demand for lithium resources.Developing efficient recycling technologies for imminent large-scale retired LIBs can significantly facilitate the sustainable utilization of lithium resources.Here,we successfully extract active lithium from spent LIBs through a simple,efficient,and low-energy-consumption chemical leaching pro-cess at room temperature,using a solution comprised of polycyclic aromatic hydrocarbons and ether sol-vents.The mechanism of lithium extraction is elucidated by clarifying the relationship between the redox potential and extraction efficiency.More importantly,the reclaimed active lithium is directly employed to fabricate LiFePO4 cathode with performance comparable to commercial materials.When implemented in 56 Ah prismatic cells,the cells deliver stable cycling properties with a capacity retention of～90％after 1200 cycles.Compared with the other strategies,this technical approach shows superior economic ben-efits and practical promise.It is anticipated that this method may redefine the recycling paradigm for retired LIBs and drive the sustainable development of industries.

外文关键词：

Retired lithium-ion batteriesLithium recyclingChemical leachingActive lithiumLithium iron phosphate

作者：

Wei Liu、Mengchuang Liu、Fenfen Ma、Mingsheng Qin、Wei Zhong、Xin Chen、Ziqi Zeng、Shijie Cheng、Jia Xie

展开 >

作者单位：

State Key Laboratory of Advanced Electromagnetic Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

State Key Laboratory of Materials Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

GuSu Laboratory of Materials,Suzhou 215123,China

Suzhou Laboratory,Suzhou 215123,China

展开 >

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

项目编号：

2022YFB2404800U196621422008082

出版年：

2024

DOI：

10.1016/j.scib.2024.02.034