Solar battery module and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-8993875-B2
Application number	US-200913002116-A
Country	US
Kind code	B2
Filing date	Jul 1, 2009
Priority date	Jul 2, 2008
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

Provided is a solar battery module wherein solar battery cells are electrically connected to each other by using a wiring board having a predetermined wiring pattern formed on a resin base material. A method for manufacturing such solar battery module is also provided. In the wiring board of the solar battery module, a direction wherein a design margin is small is permitted to be a direction wherein the thermal contraction ratio of the resin base material is small, by the shape of an electrode pattern on the solar battery cell and that of the wiring pattern on the wiring board. At the time of manufacturing such solar battery module, temperature in a heat treatment step is set at 100° C. or higher but not higher than 180° C. Electrode designing at a fine pitch is made possible and the solar battery module exhibits high solar battery characteristics, even when the solar battery cells are connected by using wiring boards composed of various types of resin materials having thermal compression ratio not sufficiently low.

First claim

The invention claimed is:

1. A solar battery module comprising: a back electrode-type solar battery cell that includes
an N electrode and a P electrode on a rear surface opposite to a light receiving surface;
and a wiring board in which a wiring is formed on a resin base;
wherein the resin base is a film that includes: an MD direction; and a TD direction which is perpendicular to the MD direction and has thermal shrinkage smaller than thermal shrinkage in the MD direction;
t…

Assignees

• Funakoshi Yasushi
• Sharp Kk

Inventors

• Funakoshi Yasushi

Classifications

• H05K1/189

  Electricity · mapped topic

• H05K2201/0145

  Electricity · mapped topic

• H05K3/284

  Electricity · mapped topic

• H05K2201/10143

  Electricity · mapped topic

• H02S40/34

  Electricity · mapped topic