羟基氧化镍的制备、结构及其电化学性能研究现状

Research Development of the Preparation,Stucture and Electrochemical Properties of Nickel Oxyhydroxides

近年来,越来越多的电子产品需要较高的工作电流,传统的锰电池已无法满足这样的要求,而锌镍电池具有可大电流放电、高电压、比能量大、比功率大和环境友好等优点,引起了越来越多研究者的关注,其正极活性物质NiOOH已经逐步成为一个新的研究热点。综述了NiOOH以及纳米级NiOOH的各种制备方法,对β-NiOOH和γ-NiOOH的结构进行了阐述,并详细分析了NiOOH的放电比容量和放电机理等电化学性能。

In recent years, more and more electronic roducts need high working current. Conventional manganese cell can not satisfy this demand. Ni-Zn battery has some advantages such as heavy current discharge, high voltage, great secific energy and specific powers, no pollution and so on. Therefore, more and more investigators pay attention to it. And NiOOH, as anode active material of Ni-Zn battery, has become a new study hotspot graduallys. In this paper, the preparation of NiOOH and nano-NiOOH is reviewed. The crystal structures of β-NiOOH and γ-NiOOH are also expouded. Finally, electrochemical properties of NiOOH, such as discharge specific capacity and discharge mechanism, are analyzed.