Granulation of nano-scale Ni(OH)2 cathode materials for high power Ni-MH batteries

被引：11

作者：

He, XM ^{[1
]}

Pu, WH ^{[1
]}

Cheng, HW ^{[1
]}

Jiang, CY ^{[1
]}

Wan, CR ^{[1
]}

机构：

[1] Tsing Hua Univ, INET, Mat Chem Lab, Beijing 102201, Peoples R China

来源：

ENERGY CONVERSION AND MANAGEMENT | 2006年 / 47卷 / 13-14期

基金：

中国国家自然科学基金;

关键词：

nano-scale nickel hydroxide; granulation; high power; Ni-MH batteries; NICKEL-HYDROXIDE; ELECTROCHEMICAL PERFORMANCE;

D O I：

10.1016/j.enconman.2005.10.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nano-scale beta-Ni(OH)(2) and Co(OH)(2) were prepared by controlled crystallization, mixed by ball milling and granulated to form about 5 pm spherical grains by spray drying granulation. The granulation significantly enhanced the electrochemical performance of nano-scale Ni(OH)(2), probably because of good size matching between the active material and the electric conductor. The granulated grains of nano-scale Ni(OH)(2) presented high performance at high discharge C-rate, and its specific capacity at 10 C exceeded that of conventional spherical micro-scale Ni(OH)(2) at 3 C. The granulated nano-scale beta-Ni(OH)(2) is a promising cathode active material for high power Ni-MH batteries. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1879 / 1883

页数：5

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