针对硅酸铁锂电导率低、电化学性能较差的缺陷,综述了近年来硅酸铁锂改性研究进展。探讨了导电材料的包覆及复合、元素掺杂、材料纳米化和形貌控制对硅酸铁锂物化性能的影响,对锂离子电池硅酸盐正极材料未来的研究方向和重点进行了展望。
Strategies to improve the conductivity and electrochemical performance of Li2FeSiO4 as anode materials for Li-ion batteries,some recent researches progress on modification of Li2FeSiO4 were reviewed.The effects of coating and compounding of conductive materials,element doping,nano crystallization of materials and special mesoporous structure on the physical and electrochemical performance of Li2FeSiO4 were discussed.An outlook for the research direction and key of Li2FeSiO4 anode materials was given.
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基金资助
国家自然科学基金青年项目(201606028);重庆市教委科学技术研究项目(KJ1600630和KJQN201800819);重庆市基础科学与前沿研究项目(cstc2017jcyjAX0209);重庆工商大学高层次人才科研启动项目(1856022)
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