气相沉积法制备多孔硅炭负极材料及其性能研究  

Preparation of Porous Si-carbon Anode Material by Vapor Deposition Method and Its Properties

作　　者：冯荣标 简正军 吴易华 周军浩 江晴晴 吴建华 FENG Rong-biao;JIAN Zheng-jun;WU Yi-hua;ZHOU Jun-hao;JIANG Qing-qing;WU Jian-hua(Jiangmen Jiangmen Harmony Innovation New-energy Materials Co.,Ltd.,Guangdong Jiangmen 529000,China)

机构地区：[1]江门市和创新能源材料有限公司,广东江门529000

出　　处：《广州化工》2024年第7期50-52,共3页GuangZhou Chemical Industry

摘　　要：环境保护和可再生能源利用是世界各国共同的选择,但可再生能源容易受外部因素影响而不能稳定供应,人们需要合适的能源装置进行储存才能形成稳定供应。锂离子电池因其优秀的电化学性能成为了现今最主要的新能源电池,但目前商业化锂离子电池的负极材料主要以人造石墨和天然石墨等石墨类材料为主,石墨类型负极材料的理论比容量只有372 mAh/g,不能满足各国对高能量密度的发展规划和要求,急需研制更高比容量的新一代负极材料。使用气相沉积法制备出了最新一代高容量多孔硅炭负极材料,并对其物理性能和电化学性能进行了研究,发现其比容量可高达2000 mAh/g以上,硅材料的体积膨胀问题也得到了极大的改善。Environmental protection and the use of renewable energy are the common choices of all countries in the world,but renewable energy is easy to be affected by external factors and can not be stable supply,people need suitable energy devices for storage to form a stable supply.Lithium-ion batteries have become the most important new energy batteries today because of their excellent electrochemical performance,but the current commercial lithium-ion battery anode materials are mainly graphite materials such as artificial graphite and natural graphite,and the theoretical specific capacity of graphite anode materials is only 372 mAh/g,which cannot meet the development planning and requirements of countries for high energy density.It is urgent to develop a new generation of anode materials with higher specific capacity.The latest generation of high-capacity porous silica-carbon anode material was prepared by vapor deposition method,and its physical and electrochemical properties were studied.It was found that its specific capacity could reach 2000 mAh/g,and the volume expansion of silicon material was greatly improved.

关 键 词：新能源装置 锂离子电池 石墨 负极材料 气相沉积法 多孔硅炭 

分 类 号：TQ127.2[化学工程—无机化工]