基于化学共沉淀的两步法合成LiMnPO4正极材料研究进展

doi:10.3976/j.issn.1002-4026.2017.02.007

Abstract

Abstract:

LiMnPO₄ has the potential applications as a cathode material for lithium-ion batteries， and chemical co-precipitation is an ideal method to prepare LiMnPO₄. There have been problems, such as the low conductivity and low Li⁺ diffusion, lying in the recent studies of LiMnPO₄ cathode materials. According to these problems,this paper, starting from the synthesis of LiMnPO₄ using Mn₃(PO₄)₂、MnPO₄、NH₄MnPO₄ and other different kinds of Mn-P precursors, summarized the recent research progresses at home and abroad in LiMnPO₄ prepared by chemical co-precipitation of twostep method, in which carbon coating and metal ion doping were usual modification methods. Aiming at the existing problems in recent researches that LiMnPO₄with different properties can be obtained from different kinds of Mn-P precursors, it was considered that the mechanism of chemical co-precipitation should be further discussed and the related kinetics and thermodynamics study should be carried on. This paper provides references for the further study of LiMnPO₄ cathode materials and its industrialization.

Key words: chemical co-precipitation method, lithium manganese phosphate, cathode material, lithium ion battery

CLC Number:

TQ152

QIN Xian-zhong，YANG Gai，GAO Jian，CAI Fei-peng， WANG Bo，JIANG Bo，TAN Chun-hui. Research progress in chemical co-precipitation based synthesis of LiMnPO4 cathode material by two steps[J].SHANDONG SCIENCE, 2017, 30(2): 43-49.

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Research progress in chemical co-precipitation based synthesis of LiMnPO4 cathode material by two steps

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