Thin film battery with protective packaging
AssigneeFront Edge Technology, Inc.
InventorsVictor Krasnov, Kai-Wei Nieh
Life of this patent
Estimating the term…
Abstract
A battery comprises a substrate comprising an electrolyte between a pair of conductors, at least one conductor having a non-contact surface. A cap is spaced apart from the non-contact surface of the conductor by a gap having a gap distance dg of from about 1 μm to about 120 μm. The gap allows the conductor to expand into the gap. The gap is further bounded by side faces about a surrounding perimeter that may be sealed with a seal. In one version, the ratio of the surface area of the non-contact surfaces on the conductor to the total surface area of the side faces is greater than about 10:1. A pliable dielectric can also be provided in the gap.
Claims37
A battery comprising:
- (a) a substrate comprising an electrolyte between a pair of conductors, at least one conductor having a non-contact surface;
- and
- (b) a cap spaced apart from the conductor with the non-contact surface by a gap having a gap distance dg of from about 1 μm to about 120 μm, whereby the conductor can expand into the gap.
A battery comprising:
- (a) a first substrate comprising an electrolyte between a first pair of conductors, at least one of the conductors having a first non-contact surface;
- (b) a second substrate comprising an electrolyte between a second pair of conductors, at least one of the conductors having a second non-contact surface;
- and
- (c) a first gap about the first non-contact surface of the first pair of conductors and a second gap about the second non-contact surface of the second pair of conductors, the first and second gaps each comprising a gap distance dg of from about 1 μm to about 120 μm, whereby the first and second gaps allow the first and second conductors to expand.
A battery comprising:
- (a) a first substrate comprising an electrolyte between a first pair of conductors, at least one of the first pair of conductors having a first non-contact surface;
- (b) a second substrate comprising an electrolyte between a second pair of conductors, at least one of the second pair of conductors having a second non-contact surface;
- and
- (c) a pliable dielectric abutting at least one of the first or second non-contact surfaces, the pliable dielectric having a thickness sufficiently thick to prevent generated electrical currents from passing therethrough and sufficiently thin to block diffusion of external gases from the peripheral edge of the pliable dielectric to the first and second pairs of conductors.
A battery comprising:
- (a) a substrate having (i) a first surface comprising a first battery cell comprising a first electrolyte between a first pair of conductors, at least one of the first pair of conductors having a first non-contact surface and (ii) a second surface comprising a second electrolyte between a second pair of conductors, at least one of the second pair of conductors having a second non-contact surface;
- (b) a first cap spaced apart from the first non-contact surface of a conductor by a first gap having a gap distance dg1 of from about 1 μm to about 120 μm, whereby the conductor can expand into the first gap;
- and
- (c) a second cap spaced apart from the second non-contact surface of a conductor by a second gap having a gap distance dg2 of from about 1 μm to about 120 μm, whereby the conductor can expand into the second gap.
A battery comprising:
- (a) a substrate having a surface;
- (b) a plurality of interconnected battery cells on the substrate surface, each battery cell comprising:
- (i) an electrolyte having opposing surfaces;
- and
- (ii) first and second conductors contacting the opposing surfaces of the electrolyte, at least one conductor having a non-contact surface;
- and
- (c) at least one electrical connector strip connecting the battery cells to electrically couple the battery cells to one another.
Dependencies are inferred from the claim text.