Bipolar articles and related methods
AssigneeA123 Systems, Inc.
InventorsGilbert N. Riley, JR., Yet Ming Chiang, Antoni S. Gozdz, Michael S. Viola, Ricardo Fulop
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Abstract
The invention provides bipolar articles (e.g., batteries and capacitors) with new architectures and methods of making and using the same. Articles are provided with interpenetrating anode and cathode structures that allow for improved power density, and arbitrary form factors that allow for formation in substantially any desired shape. The articles are useful for embedding or integral formation in various electronic devices to provide more efficient use of space in the devices. The articles optionally include self-organizing bipolar structures.
Claims12
A bipolar article, the article comprising:
- (a) a housing comprising an inside surface;
- wherein the inside surface has an arbitrary form factor which is not cylindrical or prismatic;
- (b) a bipolar structure comprising a cathode current collector, an anode current collector, an anode, a cathode, and an electrolyte in contact with and separating the anode and cathode;
- wherein the anode and cathode are interpenetrating;
- the cathode current collector is in electronic communication with the cathode;
- and the anode current collector is in electronic communication with the anode;
- wherein the bipolar structure as a whole has an arbitrary form that is not cylindrical or prismatic;
- and at least one of the cathode, the anode, and their respective current collectors is conformal to the inside surface of the housing.
Dependencies are inferred from the claim text.