Packaging material for hermetically sealed batteries
AssigneeNTK Powerdex, Inc.
InventorsMark L. Daroux, David A. Glover
Life of this patent
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Abstract
A flexible laminate for packaging a polymer electrolytic cell or battery, comprising: a first metallic foil layer; a second metallic foil layer; an intermediate separation layer disposed between the first and second metallic foil layers, the intermediate separation layer establishing a predetermined spacing between the first layer metallic foil and the second metallic foil layer; a first layer formed of a first self-sealing polymer on the first metallic foil layer.
Claims18
A flexible, multi-layer material for packaging a polymer electrolytic cell or battery, comprising:
- a first aluminum foil layer;
- a second aluminum foil layer;
- an intermediate separation layer formed of a polymeric material disposed between said first and said second aluminum foil layers, said intermediate separation layer establishing a predetermined spacing between said first aluminum foil layer and said second aluminum foil layer;
- a first layer formed of a first self-sealing material on said first aluminum foil layer, said first layer having a thickness of less than about 76 μm;
- and
- a second layer formed of a second self-sealing material on said second aluminum foil layer, said second layer having a thickness of less than about 76 μm, said first and second layers being the outermost layers of material.
A flexible, multi-layer material for packaging a polymer electrolytic cell or battery, comprising:
- a first aluminum foil layer;
- a second aluminum foil layer;
- an intermediate separation layer formed of a polymeric material disposed between said first and said second aluminum layers, said intermediate separation layer establishing a predetermined spacing between said first aluminum foil layer and said second aluminum foil layer;
- a first layer formed of a first self-sealing material on said first aluminum foil layer, said first layer having a thickness of less than about 76 μm;
- and
- a second layer formed of a second self-sealing material on said second aluminum foil layer, said second layer having a thickness of less than about 76 μm, wherein said self-sealing layer is an ethylene vinyl acetate blend.
A flexible laminate for packaging a polymer electrolytic cell, comprising:
- a first and a second layer of aluminum foil, each of said aluminum foil layers having a thickness of about 2 μm to about 100 μm;
- an inner separation layer of a thermoplastic material having a thickness of about 2 μm to about 100 μm disposed between said aluminum layers;
- and
- a layer of a self-sealing, adhesive material applied to each of said aluminum foil layers, wherein said aluminum layers and said separation layer are disposed between each layer of said self-sealing, adhesive material, said adhesive layers being formed of a thermoplastic polymer and forming the outermost layers of said laminate.
A flexible, multi-layer material for packaging a polymer electrolytic cell or battery, comprising:
- a first copper foil layer;
- a second copper foil layer;
- an intermediate separation layer formed of a polymeric material disposed between said first and said second copper foil layers, said intermediate separation layer establishing a predetermined spacing between said first copper foil layer and said second copper foil layer;
- a first layer formed of a first self-sealing material on said first copper foil layer, said first layer having a thickness of less than about 76 μm;
- and
- a second layer formed of a second self-sealing material on said second copper foil layer, said second layer having a thickness of less than about 76 μm, said first and second layers of self-sealing material being the outermost layers of said material.
Dependencies are inferred from the claim text.