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US 2009/0290288 A1Published application
Electrical energy storage devices with separator between electrodes and methods for fabricating the devices
AssigneeMaxwell Technologies, Inc.
InventorsPorter Mitchell, Xiaomei Xi, Linda Zhong
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Abstract
Films of active electrode material, such as films made from carbon and fibrillized polymer, are attached to a porous separator. Outer surfaces of the films (i.e., surfaces opposite those adjoining the separator) are then covered with current collectors. The 5 resulting stack is usable in fabrication of electrical energy storage devices. The stack can be shaped as needed, connected to terminals, and immersed in an electrolytic solution to provide a double layer capacitor.
Claims1
A double layer capacitor product comprising:
- a first layer of electrode material comprising a first surface and a second surface;
- a second layer of electrode material comprising a third surface and a fourth surface;
- a porous separator disposed between the first layer and the second layer so as to adjoin and be attached to the first surface and the third surface;
- a first current collector attached on the second surface;
- and
- a second current collector attached on the fourth surface;
- wherein
- the separator is attached to the first surface before the first current collector is attached to the second surface;
- and wherein
- the separator is attached to the third surface before the second current collector is attached to the fourth surface.
7 more elements
Dependencies are inferred from the claim text.