锂硫电池用硫化锂正极复合材料的研究现状

发布时间：2018-03-29 11:24

本文选题：电化学　切入点：制备　出处：《化工进展》2017年09期

【摘要】：锂硫电池采用硫化锂作为正极材料时,不仅具有较高的理论比容量(1166m A?h/g),还可用高嵌锂能力的碳或硅材料代替金属锂负极,有效避免锂枝晶刺穿隔膜造成的短路现象,故该储能体系为国内外学者所广泛关注。本文围绕硫化锂/金属、硫化锂/碳、硫化锂/导电聚合物3类复合材料体系综述硫化锂正极复合材料近年来的研究现状。同时,对电极材料的设计和功能化制备进行了阐述,指出了硫化锂正极复合材料未来的研究方向应注重不同导电复合材料的协同使用,并注重电极材料的结构设计,向多元复合、多级结构方向发展。另外,还要通过降低硫化锂的粒径以提高活性物质负载量和循环稳定性,最终获得高性能的锂硫电池。
[Abstract]:When lithium sulfide is used as cathode material for lithium-sulfur batteries, it not only has a high theoretical specific capacity of 1166mA? In order to avoid the short circuit caused by lithium dendrite piercing through the diaphragm, the energy storage system is widely concerned by scholars at home and abroad. This paper focuses on lithium sulphide / metal, lithium sulfide / carbon, lithium sulfide / carbon, lithium sulfide / metal, lithium sulfide / carbon. Lithium Sulfide / Conductive Polymer Composites A Review of recent Research on Lithium-Conductive Polymer Composites in recent years, the design and functional preparation of electrode materials are also reviewed. It is pointed out that the future research direction of lithium sulphide cathode composites should focus on the cooperative use of different conductive composites and the structure design of electrode materials. The high performance lithium-sulfur batteries can be obtained by reducing the particle size of lithium sulphide in order to improve the loading of active substances and the stability of the cycle.
【作者单位】：西安理工大学化学电源研究所;
【基金】：国家国际科技合作专项项目(2015DFR50350) 陕西省教育厅自然科学专项项目(15JK1536) 西安理工大学校创新项目(2015CX002) 陕西省科技厅自然科学基础研究计划-青年项目(2017JQ5055) 陕西省科技计划项目(2017GY-160)
【分类号】：TM912

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