Packaging for an electrochemical device and device using same
First Claim
1. A packaging material for an electrochemical charge storage device consisting of a multilayered polymeric material having a water vapor permeability of less than 2.0 g/m2 day and an oxygen vapor permeability of less than 200 mL/m2 day, wherein said electrochemical charge storage device is an aqueous battery, a gel battery, a solid state battery cell, or an electrochemical capacitor.
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Accused Products
Abstract
An electrochemical charge storage device (10) includes first and second electrodes (16) (22) with first and second current collectors (18) (24) respectively attached, an electrolyte (20) disposed between the electrodes and first and second metal foils (14) (26) to separate the electrodes (16) (22) from a packaging material. The packaging material consists of multilayered first and second polymeric packaging films (12) (28) which enclose the other components of the device (10), and are sealed to each other.
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Citations
30 Claims
- 1. A packaging material for an electrochemical charge storage device consisting of a multilayered polymeric material having a water vapor permeability of less than 2.0 g/m2 day and an oxygen vapor permeability of less than 200 mL/m2 day, wherein said electrochemical charge storage device is an aqueous battery, a gel battery, a solid state battery cell, or an electrochemical capacitor.
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7. An electrochemical charge storage device, comprising:
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first and second electrodes, each of said electrodes having a current collector attached thereto; electrolyte disposed between said electrodes and in intimate contact with said electrodes; and a package for encapsulating said device consisting of a multilayered polymeric material. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An electrochemical charge storage device, comprising:
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first packaging film consisting of a multilayered polymeric material, and defining a package perimeter; a first electrode disposed on said first packaging film within said package perimeter, and including a first current collector having a tab extending therefrom and beyond said package perimeters; second electrode including a second current collector having a tab extending therefrom beyond said package perimeter, said second tab being disposed offset from said first tab; an electrolyte disposed in contact with said first and second electrodes; second packaging film consisting of said multilayered polymeric material, and disposed on said second electrode; wherein said first and second packaging films are sealed to each other forming a seam, said seam extending substantially continuously around said electrochemical charge storage device and said first and second tabs extending therefrom. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification