镍氢动力电池正极材料的研究  

Research on the Cathode Materials of Ni/MH Power Batteries

作　　者：于丽敏[1] 蒋文全[1] 傅钟臻[1] 郭荣贵[1] 李涛[1] 杨慧[1] 

机构地区：[1]北京有色金属研究总院分析测试中心,北京100088

出　　处：《材料导报》2011年第18期58-62,共5页Materials Reports

基　　金：质检公益性行业科研专项项目(200810742)

摘　　要：为了研究镍氢动力电池正极材料氢氧化镍,收集目前常用的镍氢动力电池用正极材料——普通型及覆钴型氢氧化镍,制备独有技术产品钙镁掺杂型氢氧化镍。通过对该3大类产品进行高温大电流性能的测试表明,适用于镍氢动力电池的氢氧化镍正极材料为覆钴型及钙镁掺杂型氢氧化镍。再考察不同覆钴量的覆钴型氢氧化镍及不同配比的钙镁型氢氧化镍,对覆钴量及钙镁掺杂量进行研究,得出主要用于镍氢动力电池的氢氧化镍产品为覆钴量为Co3.5%的覆钴型氢氧化镍及Ca2Mg0.5、Ca1.5Mg0.2、Ca1Mg0.3等3种成分的钙镁型氢氧化镍。In order to study the cathode materials of Ni/MH power batteries, the first is to collect and prepare the common Ni（OH）2, Ni（OH）2 coated with Co and our particular product： Ni（OH）2 doping with Ca and Mg. The high-temperature and great current electrochemical performances of these three types of Ni（OH）2 were tested. It is shown that Ni（OH）2 coated with Co and Ni（OH）2 doping with Ca and Mg can be used as the cathode materials of Ni/ MH power batteries. Then Ni（OH）2 coated with different quantities of Co and the one doping with different Ca and Mg amounts were investigated to research the optimum coating amount of Co and the optimum doping amount of Ca and Mg. It concludes that the main Ni（OH）2 products for Ni/MH power batteries are Ni（OH）2 coated with 3. 5%Co and the one doping with Ca2 Mg0.5, Ca1. 5 Mg0. 2 and Ca1 Mg0. 3.

关 键 词：镍氢动力电池 正极材料 覆钴型氢氧化镍 钙镁型氢氧化镍 

分 类 号：TB34[一般工业技术—材料科学与工程]