Synthesis, characterization and electrochemical properties of aluminum-substituted alpha-Ni(OH)2 hollow spheres

被引：48

作者：

Li, Yueming ^{[1
]}

Li, Weiyang ^{[1
]}

Chou, Shulei ^{[1
]}

Chen, Jun ^{[1
]}

机构：

[1] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 456卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

hollow sphere; alpha-nickel hydroxide; alkaline rechargeable battery;

D O I：

10.1016/j.jallcom.2007.02.073

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：

In this work, we reported on the preparation and electrochemical properties of aluminum (Al)-substituted alpha-Ni(OH)(2) hollow spheres. Polystyrene microspheres were used as the templates in large scale to prepare Al-substituted alpha-Ni(OH)(2) hollow spheres. The charge/discharge performance of Al-substituted alpha-Ni(OH)(2) hollow spheres was further investigated as the positive electrode material of alkaline rechargeable batteries. The results showed that the 20.4% Al-containing alpha-Ni(OH)(2) hollow spheres exhibited high discharge capacity (391.1 mAh/g) and excellent cycling reversibility due to the high stability of Al-substituted alpha-Ni(OH)(2) hollow sphere structures in alkaline media, indicating their potential application in the development of high-power alkaline rechargeable batteries. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：339 / 343

页数：5

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