THIN FILM BATTERY WITH PROTECTIVE PACKAGING

• US 20100227214A1
• Filed: 05/19/2010
• Published: 09/09/2010
• Est. Priority Date: 03/25/2005
• Status: Active Grant

• Current Assignee: KLA Corporation
• Original Assignee: Front Edge Technology, Inc (KLA Corporation)
• Inventors: KRASNOV, Victor, NIEH, Kai-Wei
• Granted Patent: US 8,168,322 B2
• Time in Patent Office: Days
• US Class Current: 429/175
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 10/0585 of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• CPC Class Codes: H01M 10/4235 Safety or regulating additives or arrangements in electrodes, separators or electrolyte H01M10/4242 takes precedence
• CPC Class Codes: H01M 50/117 Inorganic material
• CPC Class Codes: H01M 50/141 for protecting against humidity
• CPC Class Codes: H01M 50/147 Lids or covers
• CPC Class Codes: H01M 50/186 characterised by the disposition of the sealing members
• CPC Class Codes: H01M 50/193 Organic material
• CPC Class Codes: H01M 50/198 characterised by physical properties, e.g. adhesiveness or hardness
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 6/42 Grouping of primary cells into batteries H01M6/40 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A battery comprises a substrate comprising a first surface comprising a first battery cell having a first non-contact surface, a pliable dielectric abutting the first non-contact surface, the pliable dielectric comprising a peripheral edge, and a first cap about the pliable dielectric.

Claims

1. A battery comprising:

(a) a substrate comprising a first surface comprising a first battery cell having a first non-contact surface;

(b) a pliable dielectric abutting the first non-contact surface, the pliable dielectric comprising a peripheral edge; and

(c) a first cap about the pliable dielectric.

2. A battery according to claim 1 wherein the substrate comprises a second surface having a second battery cell with a second non-contact surface, the pliable dielectric abuts the first and second non-contact surfaces, and a second cap is about the pliable dielectric.

3. A battery according to claim 2 wherein the first and second caps each comprise a metal foil, metalized plastic film or metal casing.

4. A battery according to claim 2 wherein the first and second caps each comprise a sheet of mica, quartz, ceramic casing or glass casing.

5. A battery according to claim 2 wherein the first and second battery cells each comprise an electrolyte between a pair of conductors, at least one of the conductors comprising the first or second non-contact surfaces, and further comprising a pair of electrical connectors that extend though the pliable dielectric, each electrical connector being connected to at least one conductor of the first or second battery cells.

6. A battery according to claim 1 comprising a plurality of side faces that are not enclosed by the cap, and wherein the ratio of the area of any one of the first or second non-contact surfaces to the total area of the side faces is at least about 10:

1.

7. A battery according to claim 6 wherein the ratio of the area of any one of the first or second non-contact surfaces to the total area of the side faces is from about 20:

1 to about 50;

1.

8. A battery according to claim 1 wherein the pliable dielectric comprises a thickness of from about 1 μ

m to about 20 μ

m.

9. A battery according to claim 8 wherein the pliable dielectric comprises a moisture permeability of less than about 10 g/(mil*100 inch²)/day.

10. A battery according to claim 1 wherein the pliable dielectric comprises Apiezon®

, paraffin, wax, mineral oil and mixtures thereof.

11. A battery comprising:

(a) a substrate comprising a first surface comprising a first battery cell having a first non-contact surface, and a second surface having a second battery cell with a second non-contact surface,

(b) a pliable dielectric abutting the first and second non-contact surfaces, the pliable dielectric comprising a peripheral edge; and

(c) first and second caps about the pliable dielectric.

12. A battery according to claim 11 wherein the first and second caps each comprise a metal foil, metalized plastic film or metal casing.

13. A battery according to claim 11 wherein the first and second caps each comprise a sheet of mica, quartz, ceramic casing or glass casing.

14. A battery according to claim 11 wherein the first and second battery cells each comprise an electrolyte between a pair of conductors, at least one of the conductors comprising the first or second non-contact surfaces, and further comprising a pair of electrical connectors that extend though the pliable dielectric, each electrical connector being connected to at least one conductor of the first or second battery cells.

15. A battery according to claim 11 comprising a plurality of side faces that are not enclosed by the first and second caps, and wherein the ratio of the area of any one of the first or second non-contact surfaces to the total area of the side faces is at least about 10:

1.

16. A battery according to claim 11 wherein the pliable dielectric comprises a thickness of from about 1 μ

m to about 20 μ

m, and a moisture permeability of less than about 10 g/(mill*100 inch²)/day.

17. A battery according to claim 11 wherein the pliable dielectric comprises Apiezon®

, paraffin, wax, mineral oil and mixtures thereof.

18. A battery comprising:

(a) a first substrate comprising opposing surfaces, at least one of the opposing surfaces comprising a battery cell having a non-contact surface abutting a first pliable dielectric, and a pair of first caps about the first pliable dielectric;

(b) a second substrate comprising opposing surfaces, at least one of the opposing surfaces comprising a battery cell having a non-contact surface abutting a second pliable dielectric, and a pair of second caps about the second pliable dielectric;

(c) a seal extending around the side faces of a gap between a first cap and a second cap.

19. A battery according to claim 18 wherein the pairs of first and second caps each comprise a metal foil, metalized plastic film or metal casing.

20. A battery according to claim 18 wherein the pairs of first or second caps each comprise a sheet of mica, quartz, ceramic casing or glass casing.

21. A battery according to claim 18 wherein the seal comprises at least one of:

(1) a moisture permeability of less than about 1.75 g/(mil*100 inch2)/day;

or

(2) epoxy, polymerized ethylene acid copolymer, Apiezon®

, paraffin, wax, Surlyn® and

mixtures thereof.

22. A battery according to claim 18 wherein the first and second pliable dielectrics each have a thickness of from about 1 μ

m to about 20 μ

m, and a moisture permeability of less than about 10 g/(mil*100 inch²)/day.

23. A battery according to claim 18 wherein the first and second pliable dielectrics each comprise Apiezon®

, paraffin, wax, mineral oil and mixtures thereof.