Title:
SURFACE TREATED STEEL FOIL FOR CURRENT COLLECTOR AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/231009
Kind Code:
A1
Abstract:
[Problem] To provide a surface treated steel foil which is for a current collector and which has hydrogen barrier properties suitable for a battery using a hydrogen occluding alloy. [Solution] This surface treated steel foil is for a current collector and has a first surface on which a hydrogen occluding alloy is disposed and a second surface positioned on the side opposite to the first surface. The surface treated steel foil is characterized by having nickel-iron alloy layers that are laminated on the first-surface side and/or the second-surface side on the side opposite to the first surface of a metal base material composed of steel foil and that minimize penetration or diffusion of hydrogen within said surface treated steel foil for a current collector, and is characterized in that at least one of the nickel-iron alloy layers has a thickness of at least 0.5 μm.
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Inventors:
KATSURA KEISHI (JP)
UENO MISATO (JP)
HORIE SHINICHIROU (JP)
TSUTSUMI ETSURO (JP)
HARADA SATOKO (JP)
KOYANAGI TOSHIFUMI (JP)
OBATA SHUNKI (JP)
YOSHIOKA KOH (JP)
UENO MISATO (JP)
HORIE SHINICHIROU (JP)
TSUTSUMI ETSURO (JP)
HARADA SATOKO (JP)
KOYANAGI TOSHIFUMI (JP)
OBATA SHUNKI (JP)
YOSHIOKA KOH (JP)
Application Number:
PCT/JP2022/019466
Publication Date:
November 03, 2022
Filing Date:
April 28, 2022
Export Citation:
Assignee:
TOYO KOHAN CO LTD (JP)
International Classes:
C25D7/06; C25D5/12; C25D5/14; C25D5/16; C25D5/26; C25D5/50; H01M4/66
Domestic Patent References:
| WO2013157600A1 | 2013-10-24 | |||
| WO2021020338A1 | 2021-02-04 | |||
| WO2020017655A1 | 2020-01-23 | |||
| WO2020020338A1 | 2020-01-30 |
Foreign References:
| JP2017047466A | 2017-03-09 | |||
| JP2007005092A | 2007-01-11 | |||
| JP2021163639A | 2021-10-11 | |||
| JP2020053401A | 2020-04-02 |
Other References:
TOORU TSURU: "Materials and Environments", vol. 63, 2014, TOKYO INSTITUTE OF TECHNOLOGY, pages: 3 - 9
Attorney, Agent or Firm:
OHTA PATENT AND TRADEMARK ATTORNEYS (JP)
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