低钴含硅LaNi5型储氢合金|吴福炜,李重河,黄铁生-《中国有色金属学报》官方网站|全网首发|论文开放获取

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第11卷第z2期总第100期 2001年11月

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文章编号：1004-0609(2001)S2-0156-04

低钴含硅LaNi₅型储氢合金

吴福炜，李重河，黄铁生

(中国科学院上海冶金研究所能源研究室，上海 200050)

摘要: 用悬浮熔炼法制备了不同含硅量的低钴LaNi₅型储氢合金，用XRD法测定其结构，并测试了电化学容量和寿命，分析了Si含量对性能的影响，合成了新型储氢合金La_0.8Nd_0.2Ni_3.6Co_0.4Mn_0.4A1_0.3Cu_0.1Fe_0.1Si_0.1，其比容量为303mAh／g，300次循环后的容量还有其最高容量的84％。

关键词: LaNi₅型储氢合金; 合金制备；电化学

Low cobalt LaNi₅-type hydrogen storage
alloys containing silicon

WU Fu-wei， LI Chong-he， HUANG Tie-sheng

（Shanghai Institute of Metallurgy， Chinese Academy of
Sciences， Shanghai 200050, P.R.China）

Abstract:Low cobalt LaNi₅type hydrogen storage alloys containing silicon were prepared by magnetic-levitation melting．Their structure，specific capacity and cycle life were measured using X-ray diffractometer and DC-5 battery testing instrument．It was found that silicon played an important role on the electrochemical characteristics of the alloys. On the basis of this finding，a new kind of hydrogen storage alloy La_0.8Nd_0.2Ni_3.6Co_0.4Mn_0.4A1_0.3Cu_0.1Fe_0.1Si_0.1 was developed，which shown a maximum capacity of 303*!mAh／g and good cycling stability.

Key words: hydrogen storage alloys; preparation and study electrochemical performance

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW