稀土储氢合金性能影响因素分析  

Analysis of Influencing Factors on Properties of Rare-Earth Hydrogen Storage Alloys

作　　者：朱军[1] 王娜[1] 杨文浩 苗广礼 刘漫博[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055 [2]甘肃稀土新材料股份有限公司,甘肃白银730922

出　　处：《稀有金属》2011年第5期770-775,共6页Chinese Journal of Rare Metals

基　　金：国家自然基金项目(51054008)资助

摘　　要：稀土储氢合金具有容量高、可大功率充放电、循环寿命长、无污染等优点,是镍氢电池负极的主要材料。近年来,我国在稀土储氢合金的研究与应用方面都取得了很大的成绩。结合此领域近几年国内外的相关实验研究成果,分别对影响稀土储氢合金性能的制备工艺、组成成分、颗粒度、热处理工艺及表面处理等各方面因素进行了综述,指出我国稀土储氢合金的性能与世界先进水平相比还存在较大差距,今后应积极开发新工艺、加快技术革新,从优化合金成分、降低生产成本、改善合金高倍率放电性能等方面着手加强研究。Rare-earth hydrogen storage alloys were used as the main cathode materials of MH-Ni batteries with the advantage of high capacity, large power charge-discharge, long cycle life and non-pollution. Many great achievements were made in research and application of rare-earth hydrogen storage alloys in the past several years. Combined with related research results at home and abroad in recent years, the factors affecting the hydrogen storage alloys performance, such as preparation process, composition, granularity, heat treat- ment and surface treatment process, were reviewed respectively. However, compared with the world advanced level, there was still a great distance in the performance of rare-earth hydrogen storage alloys in China. So it was necessary to develop new technology, to ac- celerate technological innovation, to optimize alloy composition, to reduce production cost, and to improve alloy high-rate discharge performance and so on.

关 键 词：稀土储氢合金 电化学性能 影响因素 

分 类 号：TG139.7[一般工业技术—材料科学与工程]