Innovative nanosize lithium storage alloys with silica as active centre

被引：155

作者：

Wang, GX ^{[1
]}

Sun, L ^{[1
]}

Bradhurst, DH ^{[1
]}

Zhong, S ^{[1
]}

Dou, SX ^{[1
]}

Liu, HK ^{[1
]}

机构：

[1] Univ Wollongong, Inst Supercond & Elect Mat, Energy Storage Mat Res Program, Wollongong, NSW 2522, Australia

来源：

JOURNAL OF POWER SOURCES | 2000年 / 88卷 / 02期

关键词：

lithium-ion batteries; nickel-silicon alloy; iron-silicon alloy; nanosize; capacity; electrode;

D O I：

10.1016/S0378-7753(00)00385-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two types of nanosize intermetallic alloy powders. NiSi and FeSi, are prepared by high-energy ball-milling. The alloys are used as electrode materials in lithium test cells. During lithium insertion into the alloy electrodes, Si acts as active centres, which react with Li to form LixSi alloys. A high lithium storage capacity of 1180 mA h g(-1) is observed for the NiSi electrode, with some reversibility. A mechanism for the reaction of NiSi and FeSi with Li+ is proposed. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：278 / 281

页数：4

共 15 条

[1] DIRECTIONS IN SECONDARY LITHIUM BATTERY RESEARCH-AND-DEVELOPMENT [J].