Preparation and characterization of silicon-based three-dimensional cellular anode for lithium ion battery

被引：128

作者：

Jiang, Tao

Zhang, Shichao

Qiu, Xinping ^{[1
]}

Zhu, Wentao

Chen, Liquan

机构：

[1] Tsing Hua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China

[2] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

lithium ion battery; anode; current collector; silicon;

D O I：

10.1016/j.elecom.2006.11.031

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A three-dimensional cellular silicon-based anode was prepared by casting milled silicon powders into the "valley-ridge" copper architecture, then its electrochemical property and failure mechanism were studied by means of charging-discharging (C-D) test, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). In comparison with common 2D anode fabricated by "slurry-coating" technology on flat copper foil, the 3D copper framework has shown a great structure advantage in restricting severe volume changes of silicon particles. This "stress-alleviated" action can effectively impede strain-induced loosening happened inside electrodes during charging and discharging, and consequently improve cycle-life and coulombic efficiency of silicon-based anode. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：930 / 934

页数：5

共 24 条

[1] Lithiation/delithiation performance of CU6Sn5 with carbon paper as current collector [J].