Solar Cell Module and Photovoltaic Power Generator Using This

a solar cell module and solar cell technology, applied in the field of solar cell modules and photovoltaic power generators, can solve the problems of high production cost of substrates, difficult improvement of conversion efficiency, multicrystalline silicon solar cells, etc., and achieve the effect of reducing the ratio of outer peripheral regions, improving power generation efficiency (amount of power generation/area of solar cell modules), and improving design quality
US20070295381A1Inactive Publication Date: 2007-12-27KYOCERA CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KYOCERA CORP
Publication Date
2007-12-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
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Description

TECHNICAL FIELD

[0001] The present invention relates to a solar cell module using solar cell elements including a surface electrode on the light receiving surface thereof and a photovoltaic power generator using this. BACKGROUND ART

[0002] A solar cell is a device for converting energy of incident light into electrical energy.

[0003] The major types of solar cells are classified into crystalline, amorphous and compound types. Most of the solar cells that are currently distributed in the market are crystalline silicon solar cells. The crystalline silicon solar cells are further classified into monocrystalline type and multicrystalline type. An advantage of monocrystalline silicon solar cells is that improvement of the conversion efficiency is easy because of the high quality of the substrates, while a disadvantage thereof is high production cost of the substrates.

[0004] On the other hand, multicrystalline silicon solar cells have a drawback that improvement of the conversion efficie...

Claims

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