SOLAR CELL MODULE AND SOLAR CELL MODULE MANUFACTURING METHOD

• US 20100126551A1
• Filed: 08/24/2007
• Published: 05/27/2010
• Est. Priority Date: 08/25/2006
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Okamoto, Shigeyuki, Yoshimine, Yukihiro, Tsunomura, Yasufumi
• Granted Patent: US 9,660,120 B2
• Time in Patent Office: Days
• US Class Current: 136/244
• CPC Class Codes: H01L 31/022425 for solar cells
• CPC Class Codes: H01L 31/0481 characterised by the composition of the encapsulation material
• CPC Class Codes: H01L 31/0512 made of a particular material or composition of materials
• CPC Class Codes: H01L 31/0747 comprising a heterojunction of crystalline and amorphous materials, e.g. heterojunction with intrinsic thin layer
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A solar battery module is provided with a plurality of solar battery cells which are connected to each other by connecting bus bar electrodes (21) formed on the surfaces of the adjacent solar battery cells with wiring material (41a, 41b). The bus bar electrode (21) is embedded in the wiring material (41b), and the solar battery cell (1) and the wiring material (41b) are bonded with a resin.

Claims

1. A solar cell module comprising:

a plurality of solar cells each having a collecting electrode formed on a surface thereof; and

an electric conductor connecting the collecting electrode of a solar cell and the collecting electrode of an adjacent solar cell, wherein

the collecting electrode of the solar cell is embedded in the electric conductor, and

the solar cell and the electric conductor are bonded together with a resin.

2. The solar cell module according to claim 1, wherein the resin covers a side surface of the collecting electrode.

3. The solar cell module according to claim 1, wherein the resin includes fine particles.

4. The solar cell module according to claim 1, wherein

the electric conductor has a core material and a surface layer formed on a surface of the core material, and

the collecting electrode is embedded in the surface layer.

5. A method for producing a solar cell module, comprising the steps of:

forming a collecting electrode on a surface of a solar cell;

disposing an electric conductor on a resin disposed so as to cover the collecting electrode, the electric conductor being to be connected to a collecting electrode formed on a surface of an adjacent solar cell; and

heating the solar cell with application of pressure in a direction from an upper part of the electric conductor to the solar cell.

6. The method for producing a solar cell module according to claim 5, wherein a surface of the electric conductor is softer than the collecting electrode at the heating.

7. The method for producing a solar cell module according to claim 5, wherein

the electric conductor has a core material and a surface layer formed on a surface of the core material, and

the surface layer is softer than the collecting electrode of the solar cell at the heating.