电源技术2025，Vol.49Issue(6)：1159-1167,9.DOI:10.3969/j.issn.1002-087X.2025.06.010
硅碳复合材料及高能量密度锂离子电池的开发与性能研究
Development and performance of silicon carbon composite anode materials and high-energy-density lithium-ion batteries
摘要
Abstract
The porous silicon microspheres were synthesized,and the silicon carbon(Si/C)composite materials were prepared by coating silicon microspheres with artificial graphite(AG).Si/C-LIBs and AG-LIBs were developed by using Si/C and AG as anode materials and nickel cobalt manganese ter-nary material(NCM)as cathode material.The electrochemical properties,low-temperature perfor-mance and safety performance of two types of batteries were analyzed.The results show that the en-ergy density,rate performance,cycling performance,and low-temperature performance of Si/C-LIBs are superior to those of AG-LIBs.At a discharge rate of 0.5 C,the energy density of Si/C-LIBs reaches 554 Wh/kg,which is 18.5%higher than that of AG-LIBs.The capacity variation of Si/C-LIBs at different rates is less than that of AG-LIBs.The capacity retention of Si/C-LIBs is around 90%af-ter 500 cycles at room temperature.At a discharge rate of 0.5 C,the capacity retention is around 30.6%at-10℃.关键词
硅碳负极材料/高能量密度/锂离子电池/电化学性能/安全性能Key words
Si/C anode materials/high energy density/lithium-ion batteries/electrochemical perfor-mance/safety performance分类
动力与电气工程引用本文复制引用
汤帆,罗昊,吴金澈,黄春年,刘亚明,郑举功..硅碳复合材料及高能量密度锂离子电池的开发与性能研究[J].电源技术,2025,49(6):1159-1167,9.基金项目
核资源与环境国家重点实验室开放基金(2022NRE28) （2022NRE28）
