IP Library › Granted Patent US 9,634,334
Granted Patent B2
US 9,634,334 · App. 14/406,144 · Granted Apr 25, 2017

Laminated thin film battery

Inventors: Dae-Sung Ro (Seoul, KR); Jae-Hwan Ko (Seoul, KR)
Assignee: Applied Materials, Inc.
H01M6/40H01M2/08H01M2/1061H01M2/204H01M2/26H01M2/30H01M10/0436
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Quick Facts
Patent No.
US 9,634,334
App. No.
14/406,144
Granted
Apr 25, 2017
Kind
B2
Abstract

Disclosed is a laminated thin film battery which is capable of exhibiting a high capacity and does not require a separate barrier to be formed on a surface after lamination. A first thin film battery and a second thin film battery, in which cathode current collectors and anode current collectors are formed on first surfaces, are laminated in such a type that the respective first surfaces face each other. The cathode current collectors of the first thin film battery and the second thin film battery are electrically connected to a cathode terminal, and the anode current collectors of the first thin film battery and the second thin film battery are electrically connected to an anode terminal.

Claims (79)

1. A laminated thin film battery, comprising:

a first thin film battery and a second thin film battery, the first thin film battery and the second thin film battery each comprising:

a first substrate comprising a first surface;

a cathode current collector over the first surface, the cathode current collector comprising a second surface facing the first surface and a third surface opposite the first surface;

an anode current collector over the first surface, the anode current collector comprising a fourth surface facing the first surface and a fifth surface opposite the fourth surface;

a cathode in contact with one or more portions of the third surface;

an anode in contact with one of more portions of the fifth surface;

a barrier over the cathode and over the anode, wherein the barrier is in contact with one or more portions of the third surface other than the one or more portions of the third surface in contact with the cathode, and with one or more portions of the fifth surface other than the one or more portions of the fifth surface in contact with the anode;

a cathode terminal electrically connected to the cathode current collector of at least one of the first thin film battery or the second thin film battery; and

an anode terminal electrically connected to the anode current collector of at least one of the first thin film battery or the second thin film battery; and

an electrical connection structure between the first thin film battery and the second thin film battery, the electrical connection structure being configured to:

electrically connect the cathode current collector of the first thin film battery with the cathode terminal;

electrically connect the cathode current collector of the second thin film battery with the cathode terminal;

electrically connect the anode current collector of the first thin film battery with the anode terminal;

electrically connect the anode current collector of the second thin film battery with the anode terminal; and

electrically isolate the cathode current collector of each of the first thin film battery and the second thin film battery from the anode current collector of each of the first thin film battery and the second thin film battery;

wherein

the first thin film battery and the second thin film battery are laminated such that the first surface of the first thin film battery faces the first surface of the second thin film battery, and

the cathode current collector of the first thin film battery is electrically connected with the cathode of the first thin film battery, the cathode current collector of the second thin film battery is electrically connected to the cathode of the second thin film battery, the anode current collector of the first thin film battery is electrically connected with the anode of the first thin film battery, and the anode current collector of the second thin film battery is electrically connected to the anode of the second thin film battery.

2. The laminated thin film battery according to claim 1 , further comprising:

a sealing layer between the first surface of the first thin film battery and the first surface of the second thin film battery.

3. The laminated thin film battery according to claim 2 , wherein the sealing layer comprises one or more of a material selected among epoxy, CPP (casted polypropylene), surlyn, or glass.

4. The laminated thin film battery according to claim 1 , wherein each of the first thin film battery and the second thin film battery further comprises:

an electrolyte material between the cathode and the anode.

5. The laminated thin film battery according to claim 4 , wherein the barrier conformally covers at least a portion of the anode and at least a portion of the electrolyte material.

6. The laminated thin film battery according to claim 1 , wherein the barrier is a film type or a thin film type.

7. The laminated thin film battery according to claim 1 , wherein the substrate comprises one or more of a metal, glass, mica, or a polymer.

8. A laminated thin film battery, comprising:

a first thin film battery and a second thin film battery, the first thin film battery and the second thin film battery each comprising:

a first substrate comprising a first surface;

a cathode current collector over the first surface, the cathode current collector comprising a second surface facing the first surface and a third surface opposite the first surface;

an anode current collector over the first surface, the anode current collector comprising a fourth surface facing the first surface and a fifth surface opposite the fourth surface;

a cathode in contact with one or more portions of the third surface;

an anode in contact with one of more portions of the fifth surface;

a barrier over the cathode and over the anode, wherein the barrier is in contact with one or more portions of the third surface other than the one or more portions of the third surface in contact with the cathode, and with one or more portions of the fifth surface other than the one or more portions of the fifth surface in contact with the anode; and

an electrical connection structure configured to electrically connect the cathode current collector of the first thin film battery with the cathode current collector of the second thin film battery, and to electrically connect the anode current collector of the first thin film battery with the anode current collector of the second thin film battery,

wherein

the electrical connection structure comprises at least two crossing wires configured to facilitate the electrical connections,

the electrical connection structure is configured to maintain an electrical isolation between the cathode current collectors of the first thin film battery and the second thin film battery, and anode current collectors of the first thin film battery and the second thin film battery,

the cathode current collector of the first thin film battery is a first side of the first surface of the first thin film battery,

the anode current collector of the first thin film battery is over a second side of the first surface of the first thin film battery different from the first side,

the cathode current collector of the second thin film battery is over the first side of the first surface the first thin film battery,

the anode current collector of the second thin film battery is over the second side of the first surface of the first thin film battery,

the first thin film battery and the second thin film battery are laminated such that the first surface of the first thin film battery faces the first surface of the second thin film battery, and

the cathode current collector of the first thin film battery is electrically connected with the cathode of the first thin film battery, the cathode current collector of the second thin film battery is electrically connected to the cathode of the second thin film battery, the anode current collector of the first thin film battery is electrically connected with the anode of the first thin film battery, and the anode current collector of the second thin film battery is electrically connected to the anode of the second thin film battery.

9. The laminated thin film battery according to claim 8 , further comprising:

a sealing layer between the first surface of the first thin film battery and the first surface of the second thin film battery.

10. The laminated thin film battery according to claim 9 , wherein the sealing layer comprises one or more of a material selected among epoxy, CPP (casted polypropylene), surlyn, or glass.

11. The laminated thin film battery according to claim 8 , wherein each of the first thin film battery and the second thin film battery further comprises:

an electrolyte material between the cathode and the anode.

12. The laminated thin film battery according to claim 11 , wherein the barrier conformally covers at least a portion of the anode and at least a portion of the electrolyte material.

13. The laminated thin film battery according to claim 8 , wherein the barrier is a film type or a thin film type.

14. The laminated thin film battery according to claim 8 , wherein the substrate comprises one or more of a metal, glass, mica, or a polymer.

15. A laminated thin film battery, comprising:

a first thin film battery and a second thin film battery, the first thin film battery and the second thin film battery each comprising:

a first substrate comprising a first surface;

a cathode current collector over the first surface, the cathode current collector comprising a second surface facing the first surface and a third surface opposite the first surface;

an anode current collector over the first surface, the anode current collector comprising a fourth surface facing the first surface and a fifth surface opposite the fourth surface;

a cathode in contact with one or more portions of the third surface;

an anode in contact with one of more portions of the fifth surface;

a barrier over the cathode and over the anode, wherein the barrier is in contact with one or more portions of the third surface other than the one or more portions of the third surface in contact with the cathode, and with one or more portions of the fifth surface other than the one or more portions of the fifth surface in contact with the anode; and

an electrical connection structure configured to electrically connect the cathode current collector of the first thin film battery with the cathode current collector of the second thin film battery, and to electrically connect the anode current collector of the first thin film battery with the anode current collector of the second thin film battery,

wherein

the electrical connection structure comprises at least two crossing wires configured to facilitate the electrical connections,

the electrical connection structure is configured to maintain an electrical isolation between the cathode current collectors of the first thin film battery and the second thin film battery, and anode current collectors of the first thin film battery and the second thin film battery,

the cathode current collector of the first thin film battery is over a first side of the first surface of the first thin film battery,

the anode current collector of the first thin film battery is over a second side of the first surface of the first thin film battery different from the first side,

the cathode current collector of the second thin film battery is over the second side of the first surface of the first thin film battery,

the anode current collector of the second thin film battery is over the first side of the first surface of the first thin film battery,

the first thin film battery and the second thin film battery are laminated such that the first surface of the first thin film battery faces the first surface of the second thin film battery, and

the cathode current collector of the first thin film battery is electrically connected with the cathode of the first thin film battery, the cathode current collector of the second thin film battery is electrically connected to the cathode of the second thin film battery, the anode current collector of the first thin film battery is electrically connected with the anode of the first thin film battery, and the anode current collector of the second thin film battery is electrically connected to the anode of the second thin film battery.

16. The laminated thin film battery according to claim 15 , further comprising:

a sealing layer between the first surface of the first thin film battery and the first surface of the second thin film battery.

17. The laminated thin film battery according to claim 16 , wherein the sealing layer comprises one or more of a material selected among epoxy, CPP (casted polypropylene), surlyn, or glass.

18. The laminated thin film battery according to claim 15 , wherein each of the first thin film battery and the second thin film battery further comprises:

an electrolyte material between the cathode and the anode.

19. The laminated thin film battery according to claim 18 , wherein the barrier conformally covers at least a portion of the anode and at least a portion of the electrolyte material.

20. The laminated thin film battery according to claim 15 , wherein the barrier is a film type or a thin film type.

21. The laminated thin film battery according to claim 15 , wherein the substrate comprises one or more of a metal, glass, mica, or a polymer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2016
From: GS ENERGY CORPORATION
To: APPLIED MATERIALS, INC.
Reel/Frame 039784/0621 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2014
From: RO, DAE-SUNG; KO, JAE-HWAN
To: GS ENERGY CORPORATION
Reel/Frame 034536/0939 →
Priority Claims (1)
KR 10-2012-0061452 · Jun 8, 2012 · national
Continuity (1)
Related Publication 20150125731A1 · May 7, 2015