中文摘要：

采用微乳液快速冷冻共沉淀法制备出Y（Ⅲ）和Co（Ⅱ）复合掺杂非晶态Ni（OH）。电极活性粉体材料样品。采用XRD、SAED、SEM、EDS和Raman光谱对其结构形貌和成分进行表征分析，同时将样品组装成碱性MH-Ni电池，进行了电化学性能测试。结果发现，Y（Ⅲ）和Co（Ⅱ）复合掺杂非晶态Ni（OH）2样品材料内部微结构缺陷较多，无序性强，作为活性物质合成镍电极材料，其在电极反应过程中电荷转移电阻较低，导电能力增强，其样品电极以80mA·g^-1恒流充电6h，40mA·g^-1恒流放电，终止电压为1．0V的充放电制度下，放电平台电压为1．278V，放电容量高达335．7mAh·g^-1。

英文摘要：

Abstract： Amorphous nickel hydroxide codoped with Y （ Ⅱ ） and Co （ Ⅱ ） is synthesized by micro-emulsion method. The microstructure and composition of the samples are characterized by XRD, SAED, SEM, EDS and Raman. Electrochemical properties are investigated when sample power codoped with Y （ Ⅲ ） and Co （Ⅱ） is made as nickel electrode active material, then the MH-Ni battery assembled. The results show that the sample doped with Y （ Ⅲ ） and Co （ Ⅱ ） is amorphous Ni （OH） 2 with large amount of defects. Electrode made of the sample shows low charge-transfer resistance and strong conductivity. The specific capacity is 355.7 mAh/g and discharged plateau potential is 1. 278 V when the charging current, discharging current and end potential are 80 mAh/g,40 mAh/g and 1.0 V respectively.