Title:
ELECTRODE SUBSTRATE FOR CIS SOLAR CELLS, AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2012/099187
Kind Code:
A1
Abstract:
[Problem] To provide an electrode substrate which is capable of reducing the weight and cost of a CIS solar cell and making the CIS solar cell flexible. The electrode substrate provides a photoelectric conversion efficiency that is comparable to the photoelectric conversion efficiency of conventional CIS solar cells. [Solution] Provided is an electrode substrate (30) for CIS solar cells, wherein an Mo film (a lower electrode layer (2)) is formed on a Cu coating layer (12) of a Cu-coated steel sheet (20) that has the Cu coating layer (12) which has an Na content of 0.001-1.000% by mass and an average thickness of 0.1 μm or more. In this connection, an electrolytically Cu-plated steel sheet, which is obtained using a Cu plating bath that contains an Na salt, can be used as the Cu-coated steel sheet (20). The sheet thickness of the Cu-coated steel sheet (20) including the Cu coating layer (12) is, for example, 0.02-2.00 mm. Various types of steel can be used as steel that serves as a base (11) for the Cu-coated steel sheet (20), and examples thereof may include ordinary steel and ferritic stainless steel.
Inventors:
MATSUO SHOICHI (JP)
NISHIDA YOSHIKATSU (JP)
MORITA YOSHIKAZU (JP)
FUJII TAKAHIRO (JP)
NISHIDA YOSHIKATSU (JP)
MORITA YOSHIKAZU (JP)
FUJII TAKAHIRO (JP)
Application Number:
PCT/JP2012/051033
Publication Date:
July 26, 2012
Filing Date:
January 19, 2012
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
MATSUO SHOICHI (JP)
NISHIDA YOSHIKATSU (JP)
MORITA YOSHIKAZU (JP)
FUJII TAKAHIRO (JP)
MATSUO SHOICHI (JP)
NISHIDA YOSHIKATSU (JP)
MORITA YOSHIKAZU (JP)
FUJII TAKAHIRO (JP)
International Classes:
H01L31/04
Foreign References:
| JP2010239129A | 2010-10-21 | |||
| JP2007502536A | 2007-02-08 | |||
| JP2003179238A | 2003-06-27 |
Attorney, Agent or Firm:
KOMATSU TAKASHI (JP)
Komatsu Quantity (JP)
Komatsu Quantity (JP)
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Claims: