Preparation and electrochemical properties of silicon-carbon anode materials with three-dimensional pore structure
CHEN Yu
PENG Hui
CHEN Li-Fang
DING Hui-Ling
DING Neng-Wen
ZHONG Sheng-Wen
Abstract：In this paper,the modified Hummers method was used to prepare graphene oxide,and the silicon-graphene composites were prepared by high temperature thermal reduction.Three-di-mensional porous silicon-graphene composites were prepared by in-situ freeze-drying method with sodium alginate(SA)as the matrix.The silicon-graphene exhibited first reversible capacity of 1327.3 mAh/g,995.6mAh/g after 50 cycles and 75% of the cycle efficiency,which was higher than that of open hole silicon-Graphite(67.9%),silicon-graphene(47.0%)and silicon-graphite (24%).
Keywords：Lithium Ion BatteryLithium ion silicon carbon anode materialPore structureSpe-cific capacity
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 34-38 )