Solar cell with connecting sheet, solar cell module, and fabrication method of solar cell with connecting sheet
a solar cell and connecting sheet technology, applied in the field of solar cell module, and method of fabricating solar cell connecting sheet, can solve the problem of limited electrical energy that can be utilized by a single back electrode type solar cell of the configuration disclosed in patent literature 1 and achieve the effect of suppressing position deviation
Inactive Publication Date: 2012-01-12
SHARP KK
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Benefits of technology
The present invention relates to a solar cell with a connecting sheet, a solar cell module, and a method of fabricating a solar cell module by electrically connecting a plurality of back electrode type solar cells. The technical effect of the invention is to prevent position deviation in the solar cell relative to the connecting sheet during the heating process in the sealing step, which can occur due to thermal expansion of the semiconductor substrate and flowability of the sealing material.
Problems solved by technology
The electric energy that can be utilized by a single back electrode type solar cell of the configuration disclosed in Patent Literature 1 is limited.
Method used
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[0105]First, thermosetting resin was applied onto the surface of a connecting sheet including an insulative substrate having wire patterned after a predetermined form.
[0106]Then, a back electrode type solar cell having a surface of an octagon shape was placed on a connecting sheet such that the electrodes of the back electrode type solar cell were arranged on the wire of the connecting sheet.
[0107]Ultraviolet curable resin was applied to each of the short sides of the octagon corresponding to the corners of the peripheral region of the back electrode type solar cell under the state where the back electrode type solar cell was placed on the connecting sheet.
[0108]The ultraviolet curable resin was irradiated with ultraviolet ray to cure, whereby the connecting sheet was bonded to the back electrode type solar cell for temporary fixing.
[0109]Then, the solar cell with a connecting sheet produced as set forth above was sandwiched between a glass substrate including ethylene vinyl acetate...
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A method of fabricating a solar cell with a connecting sheet includes a temporary fixing step of bonding at least a portion of a peripheral region of a back electrode type solar cell to a connecting sheet. A method of fabricating a solar cell module includes the step of sealing the solar cell with a connecting sheet obtained by the method on a transparent substrate by a sealing material. A solar cell with a connecting sheet has a first adhesive arranged between a back electrode type solar cell and a connecting sheet, and a second adhesive arranged at least a portion of a peripheral region of the back electrode type solar cell to bond a back electrode type solar cell with a connecting sheet. A solar cell module has the solar cell with a connecting sheet sealed on a transparent substrate by a sealing material.
Description
TECHNICAL FIELD[0001]The present invention relates to a solar cell with a connecting sheet, a solar cell module, and a method of fabricating a solar cell with a connecting sheet.BACKGROUND ART[0002]In recent years, the expectation for solar cells that convert solar energy into electric energy as the energy source for the next generation has increased significantly from the standpoint of protecting global environment. Among the various types of solar cells employing compound semiconductor and / or organic material, solar cells employing silicon crystal have become the main stream.[0003]Solar cells that are now most fabricated in quantity and available on the market are the double-sided electrode type solar cells based on a configuration in which an n electrode is formed at the surface corresponding to the sunlight incident side (light receiving face), and a p electrode is formed at the surface opposite to the light receiving face side (back surface).[0004]In addition, Japanese Patent L...
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IPC IPC(8): H01L31/042H01L31/18H01L31/0224
CPCH01L31/042H01L31/048H01L31/022441Y02E10/50H01L31/02008H01L31/0516H01L31/18
Inventor MIKAMI, RUIABIKO, YOSHIYAMORII, KOHJIUROHSATOMURA, MASAFUMIOKADA, HIDEO
Owner SHARP KK