Ni(OH)_(2)正极材料可控制备及其镍锌电池性能研究  

Controlled preparation of Ni(OH)_(2) cathode materials and theirelectrochemical performances in nickel-zinc batteries

作　　者：刘宇 白一帆 陈晓羽 王雨婷 赵先跃 应佳俊 朱军 LIU Yu;BAI Yifan;CHEN Xiaoyu;WANG Yuting;ZHAO Xianyue;YING Jiajun;ZHU Jun(College of Science,Nanchang Key Laboratory of Photoelectric Conversion and Energy Storage Materials,Nanchang Institute of Technology,Nanchang 330099,China;Institute for Testing of Industrial Products of Jiangxi General Institute of Testing and Certification,Nanchang 330052,China)

机构地区：[1]南昌工程学院理学院南昌市光电转换与储能材料重点实验室,南昌330099 [2]江西省检验检测认证总院工业产品检验检测院,南昌330052

出　　处：《有色金属材料与工程》2024年第6期1-9,共9页Nonferrous Metal Materials and Engineering

基　　金：国家留学基金资助项目(202108360111);江西省研究生创新专项资金项目(YC2023-S1003)。

摘　　要：对比了采用共沉淀法和电沉积法可控制备的Ni(OH)_(2)的微观形貌结构及其在镍锌电池应用中的性能表现。研究发现:两种方法制备出的Ni(OH)_(2)的晶型不同,其微观形貌也存在较大差异,共沉淀法制备得到片层结构组装成的花状α-Ni(OH)_(2),而电沉积法制备得到类珊瑚状结构的β-Ni(OH)_(2);当将两种类型的Ni(OH)_(2)作为正极材料应用于镍锌电池时,共沉淀法所得Ni(OH)_(2)表现出更为优异的电化学储能性能,其在0.5 A/g的电流密度下容量可达232.1 mA·h/g。The microstructures of Ni(OH)_(2) cathode materials were controllably prepared by co-precipitation and electrodeposition methods and their performances in nickel-zinc batteries were compared.It was found that both crystal structures and microscopic morphologies of Ni(OH)_(2) prepared by these two methods were quite different.The flower-likeα-Ni(OH)_(2) assembled with lamellar structure can be obtained by co-precipitation method,while the coral-likeβ-Ni(OH)_(2) can be obtained by electrodeposition method.It can be observed that the Ni(OH)_(2) obtained by co-precipitation method better electrochemical energy storage performances than that by electrodeposition method of 232.1 mA·h/g at a current density of 0.5 A/g.

关 键 词：共沉淀法 电沉积法 Ni(OH)_(2) 镍锌电池 

分 类 号：TM912.2[电气工程—电力电子与电力传动]