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Air-cooled metal-air battery

  • US 5,904,999 A
  • Filed: 12/09/1997
  • Issued: 05/18/1999
  • Est. Priority Date: 05/25/1995
  • Status: Expired due to Fees
First Claim
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1. An electrochemical zinc-air multi-cell battery, each cell being of the type provided witha housing having, two outer major surfaces, and two spaced-apart inner walls, said inner walls defining a first inner chamber for containing therein a zinc electrode, and in conjunction with said outer major surfaces defining two outer chambers for receiving reaction air;

  • two generally planar, gas-permeable, but liquid-impermeable air electrodes, each of said electrodes being installed in a window-like opening provided in each of said inner walls;

    an electrolyte in contact with said zinc electrode and said air electrodes;

    means for directing a flow of said reaction air into a first inlet provided in a first outer side surface of said housing through both of said outer chambers substantially in a uniform flow distribution across the outer faces of both of said air electrodes, and out of a second outlet provided in an opposite outer side surface of said housing; and

    cooling air flow directing means for causing cooling air to flow between two adjacently positioned cells, along the outer faces of the major surfaces of two interfacing adjacent cells, said surfaces respectively being arranged to be in contact with and to cool said reaction air in each of the outer chambers bounded by said respective surfaces.

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