Anode Properties of Cu-Coated Si Thick Film Electrodes Prepared by Electroless Deposition and Gas-Deposition

被引：28

作者：

Usui, Hiroyuki ^{[1
]}

Nishinami, Hiroyuki ^{[1
]}

Iida, Takahisa ^{[1
]}

Sakaguchi, Hiroki ^{[1
]}

机构：

[1] Tottori Univ, Grad Sch Engn, Dept Chem & Biotechnol, Koyama, Tottori 6808552, Japan

来源：

ELECTROCHEMISTRY | 2010年 / 78卷 / 05期

关键词：

Si Anode Material; Electroless Deposition; Gas-deposition; Lithium Rechargeable Battery; LITHIUM RECHARGEABLE BATTERY; STORAGE; PERFORMANCE; RUO2; LI;

D O I：

10.5796/electrochemistry.78.329

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thick film electrodes of Cu-coated Si particles were fabricated by an electroless deposition and a successive gas-deposition, and were evaluated their electrochemical properties as an anode of Li-ion battery. The discharge capacity and its retention at the 1000th cycle were 570 m Ah g(-1) and 61%. The excellent cycle life performance is attributed to an enhanced electrical conductivity due to the Cu-coating and a reversible conversion reaction between Li and Cu2O which was formed on the Cu surface. The high capacity retention is caused by a high fracture toughness of the coated Cu which can effectively relax a stress induced by volume expansion of Si as a buffer matrix.

引用

页码：329 / 331

页数：3

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