石墨材料因具有稳定性高、导电性好、来源广等优点,被认为是目前较为理想的锂电池负极材料。但天然石墨负极比容量及倍率性能不能满足高性能负极材料的需要,为解决这一问题,研究者们对其进行了一系列的改性研究。本文从石墨负极的改性方法阐述了锂离子电池石墨负极材料的研究进展,并指出了各种改性方法的优缺点,认为通过多种方法协同改性,是综合提高石墨负极材料的有效方法。
Graphite material is considered to be an ideal lithium battery cathode material because of its high stability,good conductivity and wide source.However,the specific capacity and rate performance of natural graphite cannot meet the needs of high-performance cathode materials.In order to solve the problems,researchers have carried out a series of modification studies.The research progress of graphite-based cathode materials in lithium ionic battery was expounded from the modification method of graphite cathode.The advantages and disadvantages of various modification methods were pointed out.It was considered that the synergistic modification by various methods was an effective method to comprehensively improve graphite cathode materials.
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基金资助
国家自然科学基金(51674161);山东省自然科学基金重大基础研究项目(ZR2017ZC0735)
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