Liquid crystal polymer battery enclosure material
AssigneeIonic Materials, Inc.
InventorsMichael A. Zimmerman, Randy Leising
Life of this patent
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Abstract
The present invention features a pouch comprising a single layer of polymer material having a first surface and a second surface, wherein the second surface is disposed to define an interior space surrounded by the second surface of the pouch, and wherein the first surface is disposed to define the exterior of the pouch, wherein the single layer has a uniform thickness between the first surface and second surface, wherein the polymer material comprises a liquid crystal polymer, and wherein the pouch has a water vapor transmission rate of less than 0.1 g/m2/day between the interior space and the first surface of the pouch.
Claims16
An apparatus comprising:
- a single layer of polymer material having a first surface and a second surface;
- wherein the second surface is disposed to define an interior space of a pouch surrounded by the second surface of the pouch;
- wherein the first surface is disposed to define an exterior of the pouch;
- wherein the single layer has a uniform thickness between the first surface and second surface;
- wherein the polymer material comprises a liquid crystal polymer;
- and
- wherein the pouch has a water vapor transmission rate of less than 0.1 g/m2/day between the interior space and the first surface of the pouch;
- a battery disposed in the interior space, wherein the battery comprises at least one lead in the form of one or more current collector tabs, and wherein said lead extends from the interior space;
- and
- a pre-sealed sealing layer adhered to said lead, and wherein a first portion of the second surface of the pouch is adhered to said sealing layer by way of an oversized heat seal band, wherein the oversized heat seal band prevents heat conduction in one direction by fostering adhesion between the polymer material and the one or more collector tabs on one side of the sealing layer to create an airtight seal.
Dependencies are inferred from the claim text.