Manufacturing method of back contact solar cell module using linear ribbon type connector strip and each solar cell module

Title:

Manufacturing method of back contact solar cell module using linear ribbon type connector strip and each solar cell module

Document Type and Number:

Japanese Patent JP6368714

Kind Code:

B2

Abstract:

A solar module and a method for fabricating a solar module comprising a plurality of rear contact solar cells are described. Rear contact solar cells (1) are provided with a large size of e.g. 156×156 mm2. Soldering pad arrangements (13, 15) applied on emitter contacts (5) and base contacts (7) are provided with one or more soldering pads (9, 11) arranged linearly. The soldering pad arrangements (13, 15) are arranged asymmetrically with respect to a longitudinal axis (17). Each solar cell (1) is then separated into first and second cell portions (19, 21) along a line (23) perpendicular to the longitudinal axis (17). Due to such cell separation and the asymmetrical design of the soldering pad arrangements (13, 15), the first and second cell portions (19, 21) may then be arranged alternately along a line with each second cell portion (21) arranged in a 180°-orientation with respect to the first cell portions (19) and such that emitter soldering pad arrangements (13) of a first cell portion (19) are aligned with base soldering pad arrangements (15) of neighboring second cell portions (21), and vice versa. Simple linear ribbon-type connector strips (25) may be used for interconnecting the cell portions (19, 21) by soldering onto the underlying aligned emitter and base soldering pad arrangements (13, 15). The interconnection approach enables using standard ribbon-type connector strips (25) while reducing any bow as well as reducing series resistance losses.

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Inventors:

Rostan Philip Johannes
Wad robert
Diesta Noel Gonzalez
Sridara Shanker Gouri
Soling Anders

Application Number:

JP2015530506A

Publication Date:

August 01, 2018

Filing Date:

September 10, 2013

Export Citation:

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Assignee:

REC Solar Private Limited

International Classes:

H01L31/05; H01L31/18

Domestic Patent References:

JP2011091316A
JP2009059921A
JP2009044049A
JP2012182408A
JP2000164901A
JP201384930A
JP200860205A

Foreign References:

WO2008078741A1
WO2012001815A1
WO2006123938A1

Attorney, Agent or Firm:

Nozomi Watanabe
Haruko Sanwa
Hideaki Ito

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