Solar cell module and method of manufacturing solar cell module

Abstract

In the present invention, corrosion at contact points between conductive particles and tab lines and electrodes is prevented, and power generation efficiency is maintained. A solar cell module is provided with: a plurality of solar cells (2); and tab lines (3), each of which is adhered, via a conductive adhesive (17) comprising conductive particles (23), to electrodes (11, 13) formed on the front face of a solar cell (2) and the back face of an adjacent solar cell (2), said tab lines (3) connecting the plurality of solar cells (2) with each other. The surface of the conductive particles (23) is composed of the same type of conductor as the conductor forming the connection face of the tab lines (3), and / or the conductor forming the electrodes (11, 13).

Description

technical field [0001] The present invention relates to a solar battery module in which a plurality of solar battery cells are connected by tab wires, and more particularly to a solar battery module in which electrodes of solar battery cells are connected to tab wires via a conductive adhesive containing conductive particles And a method for manufacturing a solar cell module. [0002] This application claims priority based on Japanese Patent Application No. 2011-10232 filed in Japan on January 20, 2011 and Japanese Patent Application No. 2011-169446 filed in Japan on August 2, 2011 rights, and these applications are incorporated into this application by reference. Background technique [0003] For example, in a crystalline silicon-based solar cell module, a plurality of adjacent solar cells are connected by a tab wire serving as an interconnector. The tab wires connect the solar cells in series by connecting one end thereof to the surface electrode of one solar cell and co...

AI Technical Summary

Problems solved by technology

[0007] However, since the connection process is performed at a high temperature of about 260° C. during soldering, there are concerns about warping or cracking of the solar cell, internal stress generated at the connection between the tab wire and the front electrode and the back electrode, and further flux. (flux) residue, etc., the connection reliability between the surface electrode and the back electrode of the solar cell and the terminal wire will be reduced.

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