RECHARGEABLE ELECTROCHEMICAL APPARATUS AND NEGATIVE POLE THEREFOR
    3.
    发明授权
    RECHARGEABLE ELECTROCHEMICAL APPARATUS AND NEGATIVE POLE THEREFOR 失效
    可充电的电化学设备及其负极

    公开(公告)号:EP0144429B1

    公开(公告)日:1990-09-19

    申请号:EP84901015.2

    申请日:1984-03-06

    IPC分类号: H01M4/38 H01M4/40 H01M4/44

    CPC分类号: H01M4/661 H01M4/40 H01M10/36

    摘要: A rechargeable negative pole for an electrochemical apparatus using a non-aqueous electrolyte is made of an alloy consisting essentially of at least one element selected from the group of Sn, Pb, In and Bi, with Cd. A rechargeable electrochemical apparatus is provided with a combination of this negative pole and a positive pole, and can be reversibly charged. When immersed in a non-aqueous electrolyte containing alkali metal ions, the negative pole reversibly occludes and emits the alkali metal ions by this charge and discharge. The negative pole has a long charge-and-discharge life, since however many times the charge and discharge is repeated, the negative pole is not fragmented, and the negative pole maintains its electrode configuration stably. In addition, since the amount of alkali metal occluded per unit volume is large, the nergy density is high.

    摘要翻译: PCT No.PCT / JP84 / 00086 Sec。 371日期:1984年11月5日 102(e)日期1984年11月5日PCT提交1984年3月6日PCT公布。 公开号WO84 / 03590 1984年9月13日。本发明涉及一种使用非水电解质的电化学装置的可再充电负极,所述电极包括含有Cd和选自Sn,Pb,In和Bi中的至少一种金属的合金, 以及包括所述负极与正电极的组合的可充电电化学装置,其具有充电和放电的可逆性。 在含碱金属离子的非水电解液中,上述负极作为充放电的结果可逆地吸收和解吸碱金属离子。 即使在重复充放电之后也不会发生粉碎,并且其形状稳定,从而具有长的充放电寿命。 此外,由于每单位体积吸收大量的碱金属,因此能量密度高。