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Laminar batteries and methods of making the same

  • US 4,539,275 A
  • Filed: 08/24/1981
  • Issued: 09/03/1985
  • Est. Priority Date: 08/24/1981
  • Status: Expired due to Term
First Claim
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1. In a laminar battery, a conductive metal sheet forming an externally accessible collector terminal of the battery;

  • a frame of thermoplastic liquid impermeable electrical insulating material formed with a central aperture, said frame being laminated around its periphery to said metal terminal sheet;

    an electrode assembly comprising a sheet of conductive plastic uniformly coated on one side with active electrode particles in a binder, said conductive plastic sheet being laminated around its periphery to a region of a side of said frame opposite the side laminated to said metal terminal sheet, said conductive plastic sheet having a central region extending through the aperture in said frame and being laminated to said metal terminal in the region within said aperture;

    a sheet of separator material overlying said electrode particle coating on said conductive plastic sheet and having borders extending beyond the borders of said conductive plastic sheet and terminating within the borders of said frame, and means adhering said separator sheet to said frame in discontinuous regions about the periphery of said separator sheet to provide intermediate passages of gas flow between the regions of adherences.

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