不同镍盐合成的球形β-Ni(OH)_2的充放电特性与结构变化规律

电化学（中英文） ›› 2001, Vol. 7 ›› Issue (3): 310-315.

不同镍盐合成的球形β-Ni(OH)_2的充放电特性与结构变化规律

杨书廷,尹艳红,陈红军,贾俊华,张明春,丁立

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收稿日期:2001-08-28 修回日期:2001-08-28 出版日期:2001-08-28 发布日期:2001-08-28

Charge/Discharge Characteristics and Structural Changing of Spherical β-Ni(OH)_2 Prepared from Different Nickel Salt

YANG Shu_ting,YIN Yan_hong,CHEN Hong_jun, JIA Jun_hua,ZHANG Ming_chum,DING li

(College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan, 453002, China

Received:2001-08-28 Revised:2001-08-28 Published:2001-08-28 Online:2001-08-28

摘要/Abstract

摘要： 采用均匀络合共沉淀法 ,以不同的镍盐分别合成出了球形 β Ni(OH) 2 ,并对其充放电循环及循环伏安特性进行了研究 .发现由不同盐合成的Ni(OH ) 2 其电化学性能有较大差别 ,用NiSO4合成的Ni(OH) 2 放电比容量高 ,循环寿命较好 ,平台电位也高于用Ni(NO3) 2 合成的Ni(OH) 2 .根据X射线 (XRD)分析和傅立叶变换红外 (FTIR)图谱对存在差别的原因进行分析 ,为原料的选择提供了理论依据

关键词: 均匀络合共沉淀法, 电化学比容量, 循环寿命, Ni(OH)2结构

Abstract: Spherical β Ni(OH) 2 was prepared from different nickel salt by homogeneous complexing precipitation method. Its charge/discharge and cyclic voltammetry properties were studied. The authors found that there are many differences in the electrochemical properties of the prepared Ni(OH) 2.The specific capacity, cycling life and the discharging plateau of the material prepared from NiSO 4 were superior to those of the material prepared from Ni(NO 3) 2.The reasons of the differences were analyzed by XRD and FTIR measurements, which will become abasis for the selection of raw materials.

Key words: Homogeneous complexing precipitation method, Electrochemical specific capacity, Cycling life, Structure of Ni(OH) 2

中图分类号:

TM910.4

杨书廷,尹艳红,陈红军,贾俊华,张明春,丁立. 不同镍盐合成的球形β-Ni(OH)_2的充放电特性与结构变化规律[J]. 电化学（中英文）, 2001, 7(3): 310-315.

YANG Shu_ting,YIN Yan_hong,CHEN Hong_jun, JIA Jun_hua,ZHANG Ming_chum,DING li . Charge/Discharge Characteristics and Structural Changing of Spherical β-Ni(OH)_2 Prepared from Different Nickel Salt[J]. Journal of Electrochemistry, 2001, 7(3): 310-315.

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https://electrochem.xmu.edu.cn/CN/Y2001/V7/I3/310

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