发明授权
- 专利标题： Method for producing silicon for use in solar cells
- 专利标题（中）： 生产用于太阳能电池的硅的方法
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申请号： US46172申请日： 1998-03-23
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公开(公告)号： US6090361A公开(公告)日： 2000-07-18
- 发明人: Hiroyuki Baba , Masamichi Abe , Kazuhiro Hanazawa , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Tetsuya Fujii
- 申请人： Hiroyuki Baba , Masamichi Abe , Kazuhiro Hanazawa , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Tetsuya Fujii
- 申请人地址： JPX
- 专利权人： Kawasaki Steel Corporation
- 当前专利权人： Kawasaki Steel Corporation
- 当前专利权人地址： JPX
- 优先权： JPX9-069589 19970324; JPX9-074876 19970324; JPX9-071546 19970325; JPX9-313289 19971114; JPX9-313291 19971114
- 主分类号： C01B33/025
- IPC分类号： C01B33/025 ; C01B33/037 ; C30B11/00 ; C30B13/00 ; C30B15/00 ; C01B33/02
摘要：
Method for producing highly purified silicon for use in solar cells by a single solidification purification, pouring silicon into a mold and gradually fractionally solidifying it while solidifying the liquid surface, followed by purifying the solidified silicon by zone melting or continuous casting using an electromagnetic mold, or by zone melting in combination with continuous casting, and optionally causing directional solidification to concentrate impurities, leaching and recycling.
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