Jing-long Liang, Dong-bin Wang, Le Wang, Hui Li, Wei-gang Cao, and Hong-yan Yan, A new electrochemical process on the recovery metallic Mn from waste LiMn2O4 based Li-ion batteries in NaCl-CaCl2 melts, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2144-7
Cite this article as:
Jing-long Liang, Dong-bin Wang, Le Wang, Hui Li, Wei-gang Cao, and Hong-yan Yan, A new electrochemical process on the recovery metallic Mn from waste LiMn2O4 based Li-ion batteries in NaCl-CaCl2 melts, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2144-7
Research Article

A new electrochemical process on the recovery metallic Mn from waste LiMn2O4 based Li-ion batteries in NaCl-CaCl2 melts

+ Author Affiliations
  • Received: 27 May 2020Revised: 9 July 2020Accepted: 14 July 2020Available online: 16 July 2020
  • A new method for the recovery of Mn is proposed via direct electrochemical reduction of LiMn2O4 from the waste lithium-ion batteries in NaCl-CaCl2 melts at 750℃. The results show the reduction process of LiMn2O4 by electrochemical methods on the coated electrode surface are in three steps, Mn(IV) → Mn(III) → Mn(II) → Mn. The products of electro-deoxidation are CaMn2O4, MnO, (MnO)x(CaO)1-x and Mn. Metal Mn appears when the electrolytic voltage increased to 2.6 V. Increasing the voltage could promote the deoxidation reaction process. With the advancement of the three-phase interline(3PI), the electric deoxygenation gradually proceeds from the outward to core. With the high voltage, the kinetic process of the reduction reaction is accelerated, and double 3PI in different stages are generated.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article views (1445) PDF downloads(20) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return