SOLAR BATTERY MODULE

WIPO Patent Application WO/2020/255597

A1

The present invention provides a solar battery module having a bus bar electrode unit that is hardly peeled compared with conventional electrodes when being decomposed. A solar battery cell (10) and a wiring member (60) are arranged between two base materials (2, 3), and a sealing material (6a) is filled between the two base materials (2, 3). The solar battery cell (10) comprises a front electrode layer (20), a rear electrode layer (22), and a photoelectric conversion unit (21), and a bus bar electrode unit (40) is provided onto at least one electrode layer (20) among the front electrode layer (20) and the rear electrode layer (22). The wiring member (60) is adhered to the bus bar electrode unit (60) via a solder layer (12). The solar battery cell (10) has an interfacial peeling layer (26) containing a rosin compound. In a sectional view, the interfacial peeling layer (26) covers at least a part of the side of the bus bar electrode unit (60) and extends further to one of the electrode layers (20). Adhesion strength of an interface between the bus bar electrode unit (60) and the interfacial peeling layer (26) is larger than adhesion strength of an interface between the sealing material (6a) and the interfacial peeling layer (26), and the adhesion strength of the interface between the sealing material (6a) and the interfacial peeling layer (26) is larger than adhesion strength of the interface between the one electrode layer (20) and the interfacial peeling layer (26).

MINAMI YUTA (JP)

PCT/JP2020/019287

December 24, 2020

May 14, 2020

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KANEKA CORP (JP)

H01L31/048; H01L31/05

JP2003142720A	2003-05-16
JP2009004613A	2009-01-08
JP2012079948A	2012-04-19
JP2011086964A	2011-04-28
JP2007201291A	2007-08-09
US20140000683A1	2014-01-02

FUJITA Takashi et al. (JP)

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