综述了锂电池用Sn基负极材料近年来的发展现状,着重讨论了Sn基氧化物、Sn基复合氧化物、Sn基合金以及Sn基复合物等Sn基负极材料的制备方法、性能特点、存在问题以及改善途径.指出单一方法难以全面改善Sn基负极材料的性能,综合运用结构优化、成分控制、掺入基质以及优化还原剂、黏合剂和电解质添加剂等途径才能更好地改善Sn基负极材料的电化学性能.最后,对Sn基负极材料的研究趋势进行了展望,并指出以石墨烯为基质的Sn基复合材料是今后研究的重要方向.
The status of development on anode materials for lithium ion batteries in recent years were summarized,focusing on the preparation methods, characteristics, problems and improvement ways of tin-based oxide, tin-based composite oxide, tin-based alloy and tin-based composite, respectively.It indicates that a single approach is difficult to comprehensively improve the performance of the tin-based materials, and an integrated application of various methods such as optimizing the structure, controlling components of the materials, incorporating matrix into the tin-based materials as well as optimizing the reducing agent, binder and electrolyte additives can improve the electrochemical performance of the anode materials.Finally, the research trend in tin-based anode materials is prospected,and also it is pointed out that the tin-based composite materials with graphene as matrix may be one of the most promising research directions for future.
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