发明申请
- 专利标题： STAINLESS STEEL SUBSTRATE FOR SOLAR CELL HAVING SUPERIOR INSULATING PROPERTIES AND LOW THERMAL EXPANSION COEFFICIENT AND METHOD OF PRODUCING THE SAME
- 专利标题（中）： 具有超级绝缘性能和低热膨胀系数的太阳能电池用不锈钢基板及其制造方法
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申请号： US14888860申请日： 2014-05-02
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公开(公告)号： US20160079455A1公开(公告)日： 2016-03-17
- 发明人: Masaharu HATANO , Eiichiro ISHIMARU , Kenji HATTORI
- 申请人： NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- 申请人地址： JP Tokyo
- 专利权人： NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- 当前专利权人： NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2013-100592 20130510
- 国际申请： PCT/JP2014/062152 WO 20140502
- 主分类号： H01L31/0392
- IPC分类号： H01L31/0392 ; C22C38/48 ; C22C38/42 ; C22C38/32 ; C22C38/30 ; C22C38/28 ; C22C38/26 ; C22C38/24 ; C22C38/22 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C23C8/14 ; C23C8/18 ; C22C38/50
摘要：
Provided is a stainless steel substrate for a solar cell, the stainless steel substrate including, by mass %, Cr: 9% to 25%, C: 0.03% or less, Mn: 2% or less, P: 0.05% or less, S: 0.01% or less, N: 0.03% or less, Al: 0.005% to 5.0%, Si: 0.05% to 4.0%, and a remainder including Fe and unavoidable impurities, in which an oxide film containing (i) Al2O3 in an amount of 50% or more or containing (i) Al2O3 and (ii) SiO2 in a total amount of 50% or more is formed on a surface of stainless steel having a composition which contains Al: 0.5% or more and/or Si: 0.4% or more and satisfies the following expression (1). Cr+10Si+Mn+Al>24.5 (1)
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