Packaging for primary and secondary batteries
First Claim
1. A battery housing, comprising:
- a laminate fashioned into a sealed pouch for housing a battery electrolyte, wherein the laminate comprises (a) a sealant layer that is capable of acting as a barrier to the electrolyte, the sealant layer having an internal surface that is substantially inert to the electrolyte and an external surface; and
(b) a barrier layer comprising a first metal foil and a second metal foil, the second metal foil being adjacent to the first metal foil, the barrier layer having a first surface disposed adjacent to the external surface of the sealant layer and an external surface.
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Accused Products
Abstract
A housing for a battery comprising a laminate made of a plurality of layers is provided. The battery housing has at least a barrier layer, typically two metal foils, and a sealing layer, which is intended to be in contact with the contents of a battery. Additionally, the battery housing can further include a protective layer over the barrier layer. Suitable materials for the sealant layer and barrier layers include polymers. Preferably, the laminate battery housing is flexible, although this is not required. The sealant layer, barrier layer and protective layer may also be adhesively attached. The battery housing of the present invention can also provide moisture and acid absorbers in various configurations.
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Citations
24 Claims
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1. A battery housing, comprising:
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a laminate fashioned into a sealed pouch for housing a battery electrolyte, wherein the laminate comprises (a) a sealant layer that is capable of acting as a barrier to the electrolyte, the sealant layer having an internal surface that is substantially inert to the electrolyte and an external surface; and
(b) a barrier layer comprising a first metal foil and a second metal foil, the second metal foil being adjacent to the first metal foil, the barrier layer having a first surface disposed adjacent to the external surface of the sealant layer and an external surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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13. The housing of claim 111 wherein the polymer is selected from the group consisting of low density polyethylene, high density polyethylene, medium density polyethylene, linear low density polyethylene, copolymers of ethylene and alpha-olefins, two-ply high density polyethylene/linear low density polyethylene, ethylene interpolymers, polyethylene terephthalate, polypropylene, polychloro-trifluoroethylene, polyphenylene sulfide, ethylene vinyl acetate, ethylene vinyl alcohol, nitrile resin films, SURLYN, nylon, rubber, and combinations thereof.
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23. A battery housing, comprising:
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a laminate fashioned into a sealed pouch for housing a battery electrolyte, wherein the laminate comprises (a) a sealant layer that is capable of acting as a barrier to the electrolyte, the sealant layer having an internal surface that is substantially inert to the electrolyte and an external surface, wherein an absorbent material is pattern printed as dots on the internal surface of the sealant layer;
(b) a barrier layer comprising a first metal foil and a second metal foil, the second metal foil being attached to the first metal foil by a polymeric adhesive layer, the barrier layer having a first surface disposed adjacent to the external surface of the sealant layer and an external surface. - View Dependent Claims (24)
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Specification