US 2002/0164441 A1 · Packaging for primary and secondary batteries

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.

Claims34

Dependent claims

A laminate for use as a battery housing, comprising:

(a) a sealant layer that is capable of acting as a barrier to an electrolyte, the sealant layer having an internal surface that is substantially inert to the electrolyte and an external surface;
(b) a barrier layer comprising a first layer of metal foil and a second layer of metal foil adjacent to the first layer, the barrier layer having a first surface disposed adjacent to the external surface of the sealant layer and an external surface.

Dependencies are inferred from the claim text.

Facts

Application

10/084,573Filed 27 Feb 2002

Priority

1 Mar 2001

Published

7 Nov 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification29 codes

B32B 15/08
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 15/043
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of metal
B32B 15/20
Layered products comprising a layer of metal: comprising aluminium or copper
B32B 27/281
Comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42: comprising polyimides

Packaging for primary and secondary batteries

Life of this patent

Packaging for primary and secondary batteries

Life of this patent

Abstract

Claims34