发明授权

  • 专利标题: Negative electrodes for zinc nickel secondary batteries and their fabrication methods
  • 专利标题(中): 锌镍二次电池负极及其制作方法
  • 申请号: US11336259
    申请日: 2006-01-20
  • 公开(公告)号: US07713661B2
    公开(公告)日: 2010-05-11
  • 发明人: Zhijian Zhu
  • 申请人: Zhijian Zhu
  • 申请人地址: CN Shenzhen
  • 专利权人: BYD Company Limited
  • 当前专利权人: BYD Company Limited
  • 当前专利权人地址: CN Shenzhen
  • 代理机构: Venture Pacific Law, PC
  • 优先权: CN200510002899 20050128
  • 主分类号: H01M4/58
  • IPC分类号: H01M4/58 H01M4/62 H01M4/48
Negative electrodes for zinc nickel secondary batteries and their fabrication methods
摘要:
The present invention relates to negative electrode for zinc nickel secondary batteries and the fabrication methods. These negative electrodes contain hydrophobic porous conductive granules such as carbon black granules with a hydrophobic material adsorbed. The fabrication methods for these negative electrodes include the following steps: adding a hydrophobic material to conductive porous granules such as granules in an aqueous solution; stirring the aqueous solution with the conductive porous granules and the hydrophobic material; fabricating the active material with the aqueous solution with the conductive porous granules and the hydrophobic material; and forming the negative electrode with the active material. Batteries with negative electrodes that are embodiments of this invention or are fabricated by the method of this invention are efficient in the recombination of oxygen at the electrodes during charging have low internal pressure, and are not subjected to electrolyte leakage.
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