Inorganic Chemicals Industry ›› 2024, Vol. 56 ›› Issue (12): 62-69.doi: 10.19964/j.issn.1006-4990.2024-0052

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of lithium manganese oxide materials in electrochemical lithium extraction applications

FU Yu1(), ZHANG Boshuang1, YANG Jianmao2, LIU Jianyun1,3()   

  1. 1.College of Environmental Science and Engineering,Donghua University,Textile Pollution Controlling Engineering Centre of Ministry of Ecology and Environment,Shanghai 201620,China
    2.Research Center for Analysis & Measurement,Donghua University,Shanghai 201620,China
    3.Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200092,China
  • Received:2024-01-26 Online:2024-12-10 Published:2024-12-31
  • Contact: LIU Jianyun E-mail:3249487385@qq.com;jianyun.liu@dhu.edu.cn

Abstract:

The electrochemical lithium extraction technology is extensively utilized in extracting lithium resources from salt lake brine,geothermal brine,and seawater owing to its high separation efficiency,cost-effectiveness,and environmentally friendly nature.This technology operates on the selective adsorption of lithium ions by electrode materials,making the physicochemical properties of these materials crucial to the system's performance.Lithium manganese oxide stands out among electrode materials due to its exceptional electrochemical activity,adsorption capacity,safety profile,and non-toxicity.However,issues such as manganese dissolution and poor electronic conductivity during extended charge-discharge cycles hinder the commercial viability of lithium manganese oxide.The principles of capacitive deionization technology and the lithium extraction mechanism of LMO were elaborated.And the main modification methods of LMO were summarized and outlined,including element doping,surface coating,structural regulation,and composite formation with conductive substrates.Finally,the existing modification strategies of LMO were summarized from the reaction mechanism,and the upgrading and optimization of the electrochemical lithium extraction system were prospected and suggested from the perspective of practical application.

Key words: electrochemical lithium extraction, lithium manganese oxide, elemental doping, surface coating, structure regulation, composite conductive materials

CLC Number: