Method of making a thin film battery
First Claim
1. A method of producing a thin film battery adapted to activate when liquid contacts an electrolyte and separator layer, the method comprising the steps of:
- providing a polymeric film;
printing on the polymeric film in a pattern solvent inks that include a water swellable polymer to form electrodes;
depositing an electrolyte and separator layer in physical and ionic contact with the electrodes;
providing a means for passage of liquid to the electrolyte and separator layer; and
sealing the polymeric film on at least a section of its edges thereby confining the electrodes and electrolyte and separator layer.
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Accused Products
Abstract
A flexible thin film battery including a film layer and a porous cathode deposited on a portion of a film and a porous anode deposited on a portion of the film, with an electrolyte and separator layer positioned between the porous anode and the porous cathode. The electrolyte is preferably dried so the battery is activated when liquid contacts the electrolyte and separator layer. In a preferred embodiment, water swellable particles are included in the cell. The film layers are least partially sealed around the edges, confining the anode, cathode, and electrolyte and separator layer. The method of producing such a battery preferably includes printing various inks in a pattern on a polymeric film.
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Citations
14 Claims
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1. A method of producing a thin film battery adapted to activate when liquid contacts an electrolyte and separator layer, the method comprising the steps of:
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providing a polymeric film;
printing on the polymeric film in a pattern solvent inks that include a water swellable polymer to form electrodes;
depositing an electrolyte and separator layer in physical and ionic contact with the electrodes;
providing a means for passage of liquid to the electrolyte and separator layer; and
sealing the polymeric film on at least a section of its edges thereby confining the electrodes and electrolyte and separator layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification