Thin film battery and method of manufacture
AssigneeFront Edge Technology, Inc.
InventorsVictor Krasnov, Kai-Wei Nieh, Su-Jen Ting
Life of this patent
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Abstract
A thin film battery 10 comprises a substrate 12 which permits the battery 10 to be fabricated to provide higher energy density. In one embodiment, the substrate 12 of the battery 10 comprises mica. A crystalline lithium metal oxide film may be used as the cathode film 18.
Claims17
A battery comprising first and second electrodes having an electrolyte therebetween, one of the electrodes comprising a crystalline lithium metal oxide film, and the electrodes and electrolyte being supported by a substrate comprising a mica foil that is less than about 100 microns thick.
A thin film battery comprising:
- a substrate comprising mica;
- first and second electrodes supported by the substrate, one of the electrodes comprising a crystalline lithium metal oxide film;
- and
- an electrolyte between the electrodes, whereby the thin film battery is capable of storing electrical energy.
A thin film battery comprising:
- an anode film;
- a cathode film comprising crystalline lithium metal oxide;
- an electrolyte film between the anode and cathode films;
- and
- an annealed mica substrate to support the films,
- whereby the anode film, cathode film and electrolyte film cooperate to store electrical energy.
A thin film battery comprising:
- an anode current collector film;
- a cathode current collector film;
- an anode film contacting the anode current collector film;
- a cathode film contacting the cathode current collector film, the cathode film comprising crystalline LiCoO2;
- an electrolyte film between the anode and cathode films, the electrolyte film comprising amorphous lithium phosphorous oxynitride;
- a mica foil to support the films, the mica foil having a preheated surface from which organic materials are burnt off;
- and
- an adhesion layer on the preheated surface of the mica foil and contacting the cathode current collector film,
- whereby the anode current collector film, cathode current collector film, anode film, cathode film and electrolyte film cooperate to store electrical energy.
A thin film battery comprising:
- a mica foil;
- an adhesion layer on the mica foil;
- a cathode current collector film on the adhesion layer;
- a cathode film contacting the cathode current collector film, the cathode film comprising a crystalline lithium metal oxide film;
- an electrolyte film on the cathode film;
- and
- an anode film over the electrolyte film,
- whereby the cathode current collector film, cathode film, electrolyte film and anode film cooperate to store electrical energy.
Dependencies are inferred from the claim text.