SOLAR BATTERY, METHOD FOR MANUFACTURING SOLAR BATTERY, METHOD FOR MANUFACTURING SOLAR CELL MODULE, AND SOLAR CELL MODULE

• US 20100200058A1
• Filed: 08/29/2008
• Published: 08/12/2010
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Funakoshi, Yasushi
• Granted Patent: US 9,349,896 B2
• Time in Patent Office: Days
• US Class Current: 136/256
• CPC Class Codes: H01L 31/0201 comprising specially adapted module bus-bar structures
• CPC Class Codes: H01L 31/049 Protective back sheets
• CPC Class Codes: H01L 31/0516 specially adapted for interconnection of back-contact solar cells
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

The present invention provides a solar battery including a solar cell; a wiring substrate having a wire to be electrically connected to an electrode provided in the solar cell; and an adhesive agent for adhering the solar cell and the wiring substrate to each other. The present invention also provides a method for manufacturing the solar battery, a method for manufacturing a solar cell module using the solar battery, and the solar cell module.

Claims

1. A solar battery comprising:

a solar cell;

a wiring substrate; and

an adhesive agent for adhering said solar cell and said wiring substrate to each other; and

wherein said wiring substrate includes an insulative base material and a wire of a conductive material formed on said insulative base material, and

wherein said adhesive agent is disposed on at least a part of a region of said insulative base material other than a region in which said wire is formed.

3. The solar battery according to claim 1, wherein said insulative base material includes at least one of polyethylene terephthalate and polyethylene naphthalate.

5. The solar battery according to claim 1, wherein said wire is formed of a material including at least one selected from a group consisting of copper, aluminum, and silver.

6. The solar battery according to claim 1, wherein said adhesive agent includes at least one selected from a group consisting of a silicone-based adhesive agent, an acrylic-based adhesive agent, an epoxy-based adhesive agent, and a rubber-based adhesive agent.

7. The solar battery according to claim 1, wherein said adhesive agent has stable adhesiveness even when exposed to an environment at a temperature of 150°

C. or greater.

8. The solar battery according to claim 1, wherein said adhesive agent is a viscous adhesive agent.

9. The solar battery according to claim 1, wherein said solar cell is a back-side electrode type solar cell.

10. The solar battery according to claim 9, wherein an electrode of said solar cell has a shape of at least one of a strip and a dot.

11. The solar battery according to claim 1, wherein an electrode of said solar cell and said wire of said wiring substrate are electrically connected to each other via a conductive adhesive agent.

12. The solar battery according to claim 11, wherein said conductive adhesive agent has a melting temperature/hardening temperature of 180°

C. or smaller.

15. A method for manufacturing the solar battery as recited in claim 1, comprising:

disposing said wire on a viscous adhesive layer disposed on a base material;

disposing said wire, disposed on said viscous adhesive layer, on said adhesive agent disposed on said insulative base material;

forming said wiring substrate by removing said wire from said viscous adhesive layer to transfer said wire onto said adhesive agent; and

adhering said solar cell and said wiring substrate to each other by said adhesive agent.

16. A method for manufacturing the solar battery as recited in claim 1, comprising:

disposing said adhesive agent on at least a part of a region of said solar cell other than a region in which a electrode of said solar cell is formed; and

adhering said solar cell and said wiring substrate using said adhesive agent.

18. A method for manufacturing a solar cell module in which the solar battery as recited in claim 1 is sealed in a sealing material, wherein when sealing said solar battery, an electrode of said solar cell and said wire of said wiring substrate are mechanically compressed and bonded.

20. A solar cell module in which the solar battery as recited in claim 1 is sealed in a sealing material, wherein said sealing material is contained in a container having, on at least one of its bottom portion and its side wall, a moisture penetration preventing layer for preventing penetration of moisture.

21. The solar battery according to claim 1, wherein said wiring substrates are electrically connected to each other by a conductive member.

2. (canceled)

4. (canceled)

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17. (canceled)

19. (canceled)