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Mechanically rechargeable, electrochemical metal-air battery

  • US 5,418,080 A
  • Filed: 07/01/1994
  • Issued: 05/23/1995
  • Est. Priority Date: 07/01/1994
  • Status: Expired due to Fees
First Claim
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1. In a mechanically rechargeable, electrochemical metal-air battery having a plurality of metal-air cells, each of said cells comprising:

  • a) a housing having a base, two major surfaces and two minor surfaces, defining an interior space for containing therein a replaceable metal electrode having an electrically conductive skeletal member encompassed by an active metal component, said interior space communicating with an opening opposite said base through which said replaceable metal electrode is selectively removed to enable the mechanical replacement thereof with a freshly charged metal electrode;

    b) at least one generally planar, air permeable but liquid impermeable, air electrode, each of said air electrodes being installed in a window-like opening provided in at least one of said major surfaces; and

    c) an electrolyte in contact with the metal and air electrodes;

    the improvement comprising a first woven mesh separator attached to an inner, electrolyte-facing surface of each of said at least one air electrodes and a second, woven mesh separator attached to and covering a major surface of said replaceable metal electrode facing each of said at least one air electrodes, said first and second woven mesh separators being in sliding relationship to each other.

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