Patents Represented by Attorney, Agent or Law Firm Steves, Davis, Miller & Mosher, LLP
  • Nickel-metal hydride secondary battery comprising a compound silicate
    Patent number: 6461767
    Abstract: A nickel-metal hydride secondary battery includes positive electrodes including nickel hydroxide, negative electrodes including a hydrogen-absorbing alloy, separators and an alkaline electrolyte. The positive electrode includes a compound silicate. By employing the above construction, the compound silicate reacts with Mn or Al which dissolves out from the negative electrode to inhibit deterioration of electrochemical characteristics of the battery, and thus the life of the battery can be prolonged.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: October 8, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshitaka Dansui, Tatsuhiko Suzuki, Hideki Kasahara, Takeshi Yao