锂碳复合材料研究进展  

Research progress of lithium carbon composites

作　　者：王维宙 陈子婵 孔德钰 郇庆娜 孙兆勇 陈强 WANG Weizhou;CHEN Zichan;KONG Deyu;HUAN Qingna;SUN Zhaoyong;CHEN Qiang(China Energy Lithium Co.,Ltd.,Tianjin 300462,China)

机构地区：[1]天津中能锂业有限公司,天津300462

出　　处：《电源技术》2024年第8期1452-1465,共14页Chinese Journal of Power Sources

摘　　要：金属锂具有较高的理论比容量和较低的密度,将其作为负极材料,电池将获得较高的能量密度。然而,在实际应用中受不可控的锂枝晶、非活性锂的形成和积累、锂的体积膨胀及不稳定的固体电解质膜等因素的影响,限制了金属锂的商业化应用。将金属锂与碳材料复合制备锂碳材料可有效缓解上述问题。锂碳复合材料包括锂-石墨烯复合材料、锂-石墨复合材料、锂-碳纤维复合材料和锂-碳纳米管复合材料等。分类介绍了锂碳复合材料及其制备方法和电化学性能,并指出每类锂碳复合材料的优势和存在的问题,最后展望了未来锂碳材料的发展方向。Lithium metal has a high theoretical specific capacity and a low density.As a cathode material,the battery will obtain a high energy density and can meet the rapidly developing market demand.However,the commercial application of lithium metal is limited by the formation and accumulation of inactive lithium,volume expansion,and unstable solid electrolyte membrane of lithium in practical application.The lithium carbon composite prepared by lithium metal and carbon materials can effectively alleviate the above problems.In this paper,the classification,synthesis method and electrochemical properties of lithium carbon composites were introduced,which consists of lithiumgraphene composite,lithium-graphite composite,lithium-carbon fiber composite and lithium-carbon nanotube composite et al,and then their advantages and disadvantages were summarized.Finally,the development direction of lithium carbon materials in the future is prospected.

关 键 词：锂碳复合材料 锂-石墨烯 锂-石墨 锂-碳纤维 锂-碳纳米管 

分 类 号：TM912[电气工程—电力电子与电力传动]