NICKEL METAL HYDRIDE BATTERY

被引:23
作者
HASEGAWA, K [1 ]
OHNISHI, M [1 ]
OSHITANI, M [1 ]
TAKESHIMA, K [1 ]
MATSUMARU, Y [1 ]
TAMURA, K [1 ]
机构
[1] NIPPON YAKIN KOGYO CO LTD,KAWASAKI KU,KAWASAKI,KANAGAWA 210,JAPAN
来源
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 1994年 / 183卷
关键词
METAL HYDRIDE ELECTRODE; NI HYDROXIDE ELECTRODE; T-METAL LAYER; CD-FREE HIGH TEMPERATURE BATTERY;
D O I
10.1524/zpch.1994.183.Part_1_2.325
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Metal Hydride electrodes which utilize MmNi5-wAlxCoyFez (w = x+y+z,w = 1.0 approximately 1.5, x = 0.1 approximately 0.6, y = 0.1 approximately 0.9, z = 0.1 approximately 0.6) have a long cycle life and show excellent performance. On the surface of the alloy after cycling, a transition metal layer was observed. It was considered that the layer was made up of Ni, Co and Fe arising from the reduction the corrosion products in the alloy, and this layer is effective to provide the superior characteristics to the electrodes. Meanwhile, in order to raise the energy density of nickel-metal hydride batteries, we have employed a pasted nickel electrode using nickel hydroxide powder with a higher density than usual, as a new material. Formerly it was necessary to add a small amount of Cd as a solid solution to the nickel hydroxide, but replacing this with Zn allowed a Cd-free battery that is not harmful to the environment. Additionally, improvement in the charge acceptance of the positive electrode at high temperatures through the addition of Co as a solid solution made it possible to preclude one of the problems of this battery, namely, reduced capacity at high temperatures.
引用
收藏
页码:325 / 331
页数:7
相关论文
共 9 条
  • [1] HASEGAWA K, 1991, YUASA JIHO, V71, P13
  • [2] MORI H, 1990, 31ST BATT S JAP, P147
  • [3] DEVELOPMENT OF A PASTED NICKEL ELECTRODE WITH HIGH ACTIVE MATERIAL UTILIZATION
    OSHITANI, M
    YUFU, H
    TAKASHIMA, K
    TSUJI, S
    MATSUMARU, Y
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (06) : 1590 - 1593
  • [4] OSHITANI M, 1989, DENKI KAGAKU, V57, P480
  • [5] OSHITANI M, 1990, NICKEL HYDROXIDE ELE
  • [6] EFFECTS OF MICROENCAPSULATION OF HYDROGEN STORAGE ALLOY ON THE PERFORMANCES OF SEALED NICKEL METAL HYDRIDE BATTERIES
    SAKAI, T
    ISHIKAWA, H
    OGURO, K
    IWAKURA, C
    YONEYAMA, H
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (03) : 558 - 562
  • [7] THE INFLUENCE OF SMALL AMOUNTS OF ADDED ELEMENTS ON VARIOUS ANODE PERFORMANCE-CHARACTERISTICS FOR LANI2.5CO2.5-BASED ALLOYS
    SAKAI, T
    MIYAMURA, H
    KURIYAMA, N
    KATO, A
    OGURO, K
    ISHIKAWA, H
    IWAKURA, C
    [J]. JOURNAL OF THE LESS-COMMON METALS, 1990, 159 (1-2): : 127 - 139
  • [8] WATADA M, 1990, 34TH P POW SOURC S C
  • [9] Willems J. J. G., 1984, Philips Journal of Research, V39, P1