Laminar batteries and methods of making the same
First Claim
1. A laminar battery comprising cells chemically isolated and electrically connected in series by conductive plastic intercell connectors and terminated by conductive plastic current collectors, and provided by liquid impervious seals formed by frames, one for each cell, having central openings to receive the wet cell components and placed between and sealed to confronting borders of the conductive plastic current collectors and intercell connectors, in which said frames each comprise at least first and second opposite surface layers essentially parallel to said conductive plastic intercell connectors and current collectors and formed of first and second different thermoplastic thermally activatable adhesive materials, said first layer being thermally activatable at a substantially lower temperature than said second layer.
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Abstract
Thin flat electrical cells and batteries comprising frames formed with a central opening for receiving wet electrical cell components and made from a two layered structure of a high melting thermoplastic material and a lower melting thermoplastic material, and methods of making the same.
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Citations
6 Claims
- 1. A laminar battery comprising cells chemically isolated and electrically connected in series by conductive plastic intercell connectors and terminated by conductive plastic current collectors, and provided by liquid impervious seals formed by frames, one for each cell, having central openings to receive the wet cell components and placed between and sealed to confronting borders of the conductive plastic current collectors and intercell connectors, in which said frames each comprise at least first and second opposite surface layers essentially parallel to said conductive plastic intercell connectors and current collectors and formed of first and second different thermoplastic thermally activatable adhesive materials, said first layer being thermally activatable at a substantially lower temperature than said second layer.
- 2. An electrical cell, comprising a thin flat conductive plastic current collector, a first electrode extending over a central region of said current collector, a separator over said first electrode and extending beyond the borders of said first electrode but within and spaced from the borders of and in contact with said current collector, a frame formed with a central opening in registry with said first electrode, said frame comprising a laminate of first and second thermoplastic heat activatable adhesive materials, said first material being adhesively activatable at a substantially lower temperature than said second material, said first material being in contact with and fused to the borders of said current collector beyond and surrounding said separator and being in contact with said separator, a thin flat conductive plastic intercell connector having a second electrode formed thereon in a central region in registry with said first electrode, said intercell connector being located on said frame in contact with said second material and adhered thereto and said second electrode being located in said opening in said frame confronting said separator.
Specification