Inorganic Chemicals Industry ›› 2025, Vol. 57 ›› Issue (7): 1-13.doi: 10.19964/j.issn.1006-4990.2024-0451

• Reviews and Special Topics •     Next Articles

Research progress of electrochemical extraction of lithium from salt lake brine

LI Changwen1,2(), ZHAN Honglong1, QIAO Yingjun1, SHI Chenglong2(), QIAN Zhiqiang1,2()   

  1. 1. Key Laboratory of Green and High-end Utilization of Salt Lake Resources,Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China
    2. School of Chemistry and Materials Science,Qinghai Minzu University,Xining 810007,China
  • Received:2024-08-14 Online:2025-07-10 Published:2024-10-21
  • Contact: SHI Chenglong, QIAN Zhiqiang E-mail:lichangwen@163.com;shiclong@qhmu.edu.cn;qianzq@isl.ac.cn

Abstract:

With the growth of demand for new energy vehicles,electronic products and energy storage batteries,the demand for lithium resources has risen sharply.Extracting lithium from salt lake brine can not only alleviate the shortage of resources,but also help optimize the energy structure.Electrochemical lithium extraction technology has become the focus of research because of its high selectivity,low energy consumption,versatility and environmental friendliness.The latest progress of electrochemical lithium extraction was reviewed,including active material electrode and electrochemical lithium extraction system.LiFePO4,LiMn2O4 and LiNi x Co y Mn1-x-y O2 electroactive materials had received extensive attention due to their good selectivity and adsorption properties.However,in the actual brine with high salinity,the optimization and modification of electroactive materials and the design of different types of salt lakes were still the focus of attention in the industrial progress of electrochemical lithium extraction technology.In terms of system design,the use of capacitive deionization(CDI),electrodialysis(ED),ion pumps,electrochemically switched ion exchange(ESIX),and rocking chair systems,comprehensive consideration of cost,energy consumption and efficiency,reflected the dual goals of economic and environmental protection,indicating the development of technology in the sustainable direction.

Key words: electrochemistry, electroactive substance, lithium extraction system, selectivity

CLC Number: