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公开(公告)号：US12119499B2
公开(公告)日：2024-10-15
申请号：US17623680
申请日：2020-06-02
发明人： Takayoshi Yano , Shin Ishikawa
摘要： The present invention provides a chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery which has excellent corrosion resistance in a battery environment and, when used as a current collector of a nonaqueous electrolyte secondary battery, which enables the nonaqueous electrolyte secondary battery to have excellent cycle characteristics.
A chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery has a chemical composition containing 10% by mass or more of Cr. The chromium-containing steel sheet has an irregular structure including recesses and protrusions at a surface thereof. The average height of the protrusions is 20 nm or more and 100 nm or less, and the average spacing between the protrusions is 20 nm or more and 300 nm or less.-
2.发明公开公开(公告)号：US20240063399A1
公开(公告)日：2024-02-22
申请号：US18265798
申请日：2021-12-13
CPC分类号： H01M4/669 , H01M4/662 , C22C38/50 , C22C38/46 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/004 , C22C38/002 , C22C38/001
摘要： Provided is a chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery. The chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery has a chemical composition containing Cr in an amount of 10% by mass or more. A parameter Sa defined in ISO 25178 is from 0.15 μm to 0.50 μm inclusive, and a parameter Ssk defined in ISO 25178 is more than 0.
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公开(公告)号：US10930940B2
公开(公告)日：2021-02-23
申请号：US16307578
申请日：2017-05-22
发明人： Takayoshi Yano , Shin Ishikawa
IPC分类号： H01M8/0228 , H01M8/021 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/48 , H01M8/0217 , C23G1/08 , C21D6/00 , C22C38/50 , C25F3/06 , C22C38/00 , C21D8/02 , C21D1/26 , C21D1/76 , C22C38/60 , C21D1/74 , H01M8/1025 , H01M8/1018 , C22C38/42 , C22C38/46 , C22C38/52 , C22C38/44 , H01M8/0254
摘要： A stainless steel sheet for fuel cell separators comprises: a predetermined chemical composition; and Cr-containing fine precipitates at a steel sheet surface, wherein an average equivalent circular diameter of the fine precipitates is 20 nm or more and 500 nm or less, and a number of the fine precipitates existing per 1 μm2 at the steel sheet surface is three or more.
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公开(公告)号：US20190177825A1
公开(公告)日：2019-06-13
申请号：US16325575
申请日：2017-08-25
发明人： Takayoshi Yano , Kunio Fukuda , Shin Ishikawa , Katsuhisa Yamauchi , Reiko Sugihara , Hideya Matsumoto
IPC分类号： C22C38/60 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/00 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/50 , C22C38/54
摘要： Provided is a ferritic stainless steel that has good corrosion resistance and which exhibits good brazeability when subjected to high-temperature brazing with a Ni-containing brazing filler metal.The ferritic stainless steel has a composition containing, in mass %, C: 0.003 to 0.020%, Si: 0.05 to 0.60%, Mn: 0.05 to 0.50%, P: 0.04% or less, S: 0.02% or less, Cr: 17.0 to 24.0%, Ni: 0.20 to 0.80%, Cu: 0.01 to 0.80%, Mo: 0.01 to 2.50%, Al: 0.001 to 0.015%, Nb: 0.25 to 0.60%, and N: 0.020% or less, with the balance being Fe and incidental impurities, the composition satisfying formula (1) below and formula (2) below, Cu+Mo≥0.30 (1) 4Ni−(Si+Mn)≥0 (2) (wherein Cu and Mo in formula (1) and Ni, Si, and Mn in formula (2) each represent the content (mass %) of the corresponding element).
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公开(公告)号：US20180195157A1
公开(公告)日：2018-07-12
申请号：US15508201
申请日：2015-07-27
IPC分类号： C22C38/42 , C22C38/50 , C22C38/48 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D9/46 , F01N3/28
CPC分类号： C22C38/42 , B01D53/90 , B01D53/94 , C21D9/46 , C21D2211/005 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/48 , C22C38/50 , F01N3/08 , F01N3/28
摘要： Provided is a ferritic stainless steel sheet for a urea SCR casing which is excellent in terms of corrosion resistance in a urea SCR environment and which increases the durability of a urea SCR casing. The steel sheet has a chemical composition containing, by mass %, C: 0.020% or less, Si: 0.01% or more and 0.50% or less, Mn: 0.01% or more and 0.50% or less, P: 0.040% or less, S: 0.010% or less, Al: 0.01% or more and 0.20% or less, Cr: 20.5% or more and 24.0% or less, Cu: 0.40% or more and 0.80% or less, Ni: 0.05% or more and 0.6% or less, N: 0.020% or less, one or both selected from among Ti: 0.01% or more and 0.40% or less and Nb: 0.01% or more and 0.55% or less, and the balance being Fe and inevitable impurities, in which the relationship Ti+Nb×48/93≥8×(C+N) (in the relational expression, Ti, Nb, C, and N denote the contents (mass %) of the corresponding chemical elements) is satisfied.
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公开(公告)号：US09799896B2
公开(公告)日：2017-10-24
申请号：US15025744
申请日：2014-09-02
发明人： Takayoshi Yano , Shin Ishikawa
IPC分类号： H01M8/0228 , C25D5/36 , C22C38/18 , H01M8/021 , C25D3/38 , C25D3/46 , C25D3/48 , C25D5/10 , C25D5/12 , C25D7/06 , C25D11/34 , C22C19/03 , C25D3/12 , C25D3/30 , H01M8/1018 , C25D3/60
CPC分类号： H01M8/0228 , C22C19/03 , C22C38/18 , C25D3/12 , C25D3/30 , C25D3/38 , C25D3/46 , C25D3/48 , C25D3/60 , C25D5/10 , C25D5/12 , C25D5/36 , C25D7/0614 , C25D11/34 , H01M8/021 , H01M8/1018 , H01M2008/1095
摘要： The surface of a substrate made of stainless steel foil is coated with a Sn alloy layer, with a strike layer in between. The coating weight of the strike layer is 0.001 g/m2 to 1 g/m2.
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公开(公告)号：US11618967B2
公开(公告)日：2023-04-04
申请号：US16649984
申请日：2018-09-27
发明人： Takayoshi Yano , Shin Ishikawa
摘要： A production method for a stainless steel sheet for fuel cell separators comprises: preparing a stainless steel sheet as a material; thereafter removing an oxide layer at a surface of the stainless steel sheet; and thereafter subjecting the stainless steel sheet to electrolytic etching treatment in an active region of the stainless steel sheet.
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公开(公告)号：US20220246943A1
公开(公告)日：2022-08-04
申请号：US17623680
申请日：2020-06-02
发明人： Takayoshi Yano , Shin Ishikawa
摘要： The present invention provides a chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery which has excellent corrosion resistance in a battery environment and, when used as a current collector of a nonaqueous electrolyte secondary battery, which enables the nonaqueous electrolyte secondary battery to have excellent cycle characteristics.
A chromium-containing steel sheet for a current collector of a nonaqueous electrolyte secondary battery has a chemical composition containing 10% by mass or more of Cr. The chromium-containing steel sheet has an irregular structure including recesses and protrusions at a surface thereof. The average height of the protrusions is 20 nm or more and 100 nm or less, and the average spacing between the protrusions is 20 nm or more and 300 nm or less.-
公开(公告)号：US11380907B2
公开(公告)日：2022-07-05
申请号：US16483147
申请日：2018-01-25
发明人： Takayoshi Yano , Shin Ishikawa
摘要： A substrate stainless steel sheet has [chemical form other than metal (Cr+Fe)]/[metal form (Cr+Fe)] of 12.0 or more and 200 or less, [chemical form other than metal (Cr+Fe)]/[metal form (Cr+Fe)] being a ratio of a total of Cr and Fe existing in chemical form other than metal to a total of Cr and Fe existing in metal form at a substrate stainless steel sheet surface.
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公开(公告)号：US11085120B2
公开(公告)日：2021-08-10
申请号：US16489881
申请日：2018-04-02
发明人： Takayoshi Yano , Shin Ishikawa
IPC分类号： B21D39/00 , C23F17/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C23F1/28 , C25F1/06 , H01M8/021 , H01M8/0247
摘要： A stainless steel sheet for fuel cell separators comprises a predetermined chemical composition, wherein the stainless steel sheet has a textured structure at a surface thereof, an average interval between projected parts of the textured structure being 20 nm or more and 200 nm or less, and a ratio [Cr]/[Fe] of an atomic concentration of Cr existing in chemical form other than metal to an atomic concentration of Fe existing in chemical form other than metal at the surface of the stainless steel sheet is 2.0 or more.
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