纳米界面结构氢氧化镍的制备及其电性能

Synthesis and Electrochemical Performence of Nickel Hydroxide with Nano Interfacial Structure

采用液相受控结晶沉淀法制备了纳米界面结构氢氧化镍材料,重点考察了界面结构纳米化对目标化合物的物化性能及其电性能的影响,应用SEM、循环伏安和恒电流充放电等方法对产物进行了结构表征和性能测试。结果表明,氢氧化镍材料界面结构适度纳米化后,材料的形貌结构得到进一步改善,并且材料的放电容量和化成速度明显提高;纳米氢氧化镍包覆层的含量占10%左右综合性能较好。

Nickel hydroxide material with nano interfacial structure was synthesized by controlled crystallization-precipitation mothed. The effects of nanocrystallization of interfacial structure of nickel hydroxide on its physical and electrochemical performances were investigated emphatically. The structure and electrochemical performance of nickel hydroxide particles were characterized and analyzed by scanning electromicroscopy（ SEM）, cyclice vohammetry（CV） and chargedischarge test. The results indicated that the morphology and structure were further improved as well as the discharg capacity and formation velocity were greatly improved on the basis of proper interface nanocrystallization. The comprehensive performance is better when the nano coating content is about 10%.