纳米硅碳/石墨复合负极材料的制备及其电化学性能研究  

Study of Preparation and Electrochemical Properties of Nano-Si@C/Graphite Composite Anode Materials

作　　者：谭元忠 姜盈盈 彭思遥 李策 程奂 耿铭涛 陈国荣[2] 陈宝 TAN Yuan-zhong;JIANG Ying-ying;PENG Si-yao;LI Ce;CHENG Huan;GENG Ming-tao;CHEN Guo-rong;CHEN Bao(Zhejiang Xinan Chemical Industrial Group Co.,Ltd.,Hangzhou,Zhejiang 311600,China;Shanghai University(Zhejiang Jiaxing)Emerging Industrial Institute,Jiaxing,Zhejiang 314006,China)

机构地区：[1]浙江新安化工集团股份有限公司,浙江杭州311600 [2]上海大学(浙江嘉兴)新兴产业研究院,浙江嘉兴314006

出　　处：《浙江化工》2023年第4期9-14,共6页Zhejiang Chemical Industry

摘　　要：以机械球磨法和化学气相沉积法制备的纳米硅为原料,通过喷雾干燥法制备了人造石墨@纳米硅@无定形碳材料,探究不同制备工艺的纳米硅对包覆效果的影响。结果表明,气相沉积法制备的球形硅颗粒包覆效果更好,材料的电化学性能更优,在0.1C倍率下循环150周,比容量维持在678.7 mAh·g^(-1)。Nanosilicon prepared by mechanical ball milling and chemical vapor deposition as raw material,Artificial graphite@nanosilicon@amorphous carbon materials were prepared by spray drying,and the influence of nanosilicon with different preparation processes on the coating effect was explored.The results showed that the spherical silicon particles prepared by vapor deposition had better coating effect and better electrochemical performance of the material,and the specific capacity was maintained at 678.7 mAh·g-1 for 150 cycles at 0.1C magnification.

关 键 词：锂离子电池 硅碳/石墨复合材料 纳米硅 负极材料 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动] TB332[一般工业技术—材料科学与工程]