电池用 Ni(OH)_2 及其电化学行为研究现状

Research status of nickel hydroxide as cathode material and its electrochemical behavior

从制备方法、结构特征、电化学行为三个方面，对近年来有关碱性电池用Ｎｉ（ＯＨ）２和ＮｉＯＯＨ的研究成果进行了综述。在保证电化学性能的前提下应用对环境不造成污染的工艺来制备电池级Ｎｉ（ＯＨ）２，及利用各种现场和非现场的谱学方法与传统研究方法相结合，来研究氧化镍电极氧化还原过程中的物相结构变化。从认识局外掺杂元素对氧化镍正极性能改进的机制出发来探讨氧化镍正极反应机理及如何利用α／γ电对间循环的优点是目前的两个研究热点。

Resent achievement related to the study of Ni(OH) 2 and NiOOH, which are important cathode materials in alkaline nickel batteries, are reviewed in three aspects, i.e. the synthesis methods and the structure feature and the electrochemical behavior. On the basis of ensuring the activity, the synthesis methods without any environment pollution should be used to produce nickel hydroxide and investigate the behavior of nickel cathode and intermediate phases in redox process by insitu and non situ spectral techniques and the traditional techniques. Emphasis are being the research subjects on the usability of α/γ cycle in nickel cathode and the mechanism of reaction by adding various additives to improve the performance of nickel hydroxides.