| 金属Cu对MH/Ni电池储氢合金电极的修饰 |
| |
| 引用本文： | 杨凯,吴锋,陈实,张存中.金属Cu对MH/Ni电池储氢合金电极的修饰[J].北京理工大学学报,2005,25(12):1109-1112. |
| |
| 作者姓名： | 杨凯 吴锋 陈实 张存中 |
| |
| 作者单位： | 北京理工大学,化工与环境学院,北京,100081;北京理工大学,化工与环境学院,北京,100081;北京理工大学,化工与环境学院,北京,100081;北京理工大学,化工与环境学院,北京,100081 |
| |
| 基金项目： | 科技部科研项目
,
北京理工大学校科研和教改项目 |
| |
| 摘 要： | 为了提高MH/Ni电池储氢合金电极的导电性,运用真空蒸镀法在电极表面镀覆了一层金属Cu膜,利用XRD、XPS、SEM等方法对极片进行了分析,结果表明,在极片表面镀覆一层金属Cu膜不会对储氢合金的体相结构产生影响.电化学性能测试表明:极片经过修饰的电池,内阻降低了32.8%,5 C放电容量增加了190 mA·h, 放电平台电压提高了0.10 V,同时,充电时的内压也有明显降低,充电效率有较大提高.
|
| 关 键 词： | 表面修饰 真空蒸镀 储氢合金电极 MH/Ni电池 |
| 文章编号： | 1001-0645(2005)12-1109-04 |
| 收稿时间： | 06 24 2005 12:00AM |
| 修稿时间： | 2005年6月24日 |
Surface Modification of the MH Electrode of the MH/Ni Batteries with Copper |
| |
| YANG Kai,WU Feng,CHEN Shi and ZHANG Cun-zhong.Surface Modification of the MH Electrode of the MH/Ni Batteries with Copper[J].Journal of Beijing Institute of Technology(Natural Science Edition),2005,25(12):1109-1112. |
| |
| Authors: | YANG Kai WU Feng CHEN Shi and ZHANG Cun-zhong |
| |
| Institution: | School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing100081,China;School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing100081,China;School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing100081,China;School of Chemical Engineering and Environment,Beijing Institute of Technology,Beijing100081,China |
| |
| Abstract: | In order to increase the conductivity of the metal-hydride electrode of the MH/Ni batteries,the electrode was modified with a thin copper film using vacuum evaporate plating technology.The XRD,XPS and SEM were used to analyze the modified and unmodified electrodes.Results showed that the electrode could be modified with copper-without influence on the crystal structure of the alloy.The electrochemical performance test showed that the discharge capacity at(5 C) was increased by 190 mA·h and the discharge voltage was increased by 0.12 V after the surface modification of the electrode,the resistance of the batteries was also decreased by 32.8%.Meanwhile,the inner pressure of the batteries during charging was lowered and the charging efficiency of the batteries was improved. |
| |
| Keywords: | surface modification vacuum evaporate plating technology metal-hydride electrode MH/Ni batteries |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
| 点击此处可从《北京理工大学学报》下载免费的PDF全文 |
|
