Enhanced Electrochemical Performances of Si/Graphite Composite Anode Using Commercial Promising Waterborne Conductive Binder

2nd International Conference on Mining, Material and Metallurgical Engineering

矿业工程;材料科学;冶金学

Huang, Shu^1 ; Ren, Jianguo^2 ; Liu, Rong^1 ; Yue, Min^2 ; Huang, Youyuan^2 ; Yuan, Guohui^1

School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin

150001, China^1

Shenzhen BTR New Energy Materials Inc., Shenzhen

518000, China^2

关键词: Capacity retention;    Charge/discharge;    Commercial applications;    Composite anodes;    Electrochemical performance;    Electronic conductivity;    Polymer structure;    Theoretical capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/191/1/012049/pdf
DOI  :  10.1088/1757-899X/191/1/012049

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Silicon has attracted increasing attention as an anode material in Li-ion batteries (LIBs) owing to its high theoretical capacity. However, electrochemical properties of Si-based anodes are hindered by the electrode swelling during the charge/discharge process. In this paper, we developed a novel polymer binder with high electronic conductivity and self-healing function leading to stable cycling. These properties are attributed to the polymer structure which could provide more free Li+ leading to higher conductivity and capacity retention of the anodes. It is believed that this novel conductive binder could be a promising candidate for commercial application for the Si/graphite composite anodes in Li-ion batteries.