镍-金属氢化物电池中的几个物理问题  

SOME PHYSICAL PROBLEMS OF NiMH BATTERIES

作　　者：张允什[1] 林荫浓[1] 汪根时[1] 

机构地区：[1]南开大学新能源材料化学研究所,天津300071

出　　处：《物理》2000年第2期86-90,共5页Physics

基　　金：国家"八六三"高科技计划资助

摘　　要：镍- 金属氢化物(Ni- MH) 电池是贮氢合金研制成功之后的产物.新的高性能贮氢合金的研制是提高Ni- MH电池性能的关键之一.文章对贮氢合金的贮氢机制,如贮氢原理,从表面吸附、渗透、体内扩散、相变及其可逆过程,不仅从化学而且从物理学方面作了说明.同时也讨论了贮氢材料的宏观、微观结构对性能的影响。New high performance hydrogen storage alloys are crucial to improving the performance of Ni-MH batteries. The mechanism of hydrogen storage, including the storage principle surface, adsorption and permeation, diffusion in the bulk, phase changes and the reverse processes are discussed from both the chemical and the physical points of view. The effects of both macro- and micro-structure on the properties are discussed. Furthermore, several problems which need to be addressed in future are mentioned.

关 键 词：贮氢合金 贮氢机制 镍-金属氢化物电池 物理问题 

分 类 号：TM911[电气工程—电力电子与电力传动]