High-strength cold-rolled steel sheet having excellent surface quality and low material variation, and method for manufacturing same
US-2024384366-A1 · Nov 21, 2024 · US
Method for Producing Surface-Treated Steel Sheet for Battery Containers
US2016168657A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016168657-A1 |
| Application number | US-201414908473-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 18, 2014 |
| Priority date | Jul 31, 2013 |
| Publication date | Jun 16, 2016 |
| Grant date | — |
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- Title
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Abstract
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Provided is a method for producing a surface-treated steel sheet for battery containers including: a first process of forming an iron-nickel alloy plating layer on at least one side of a steel sheet; a second process of forming a nickel plating layer on the iron-nickel alloy plating layer; and a third process of performing a thermal treatment after forming the nickel plating layer to form an iron-nickel alloy layer having an outermost surface, at which a content ratio of Fe atoms is 12 to 55% by atom, on an outermost layer by thermal diffusion. The invention makes it possible to provide the method for producing the surface-treated steel sheet for battery containers that can suppress the elution of iron inside the battery when being used for a battery container, whereby the service life of the battery can be extended and battery characteristics such as discharge characteristics can be improved.
First claim
Opening claim text (preview).
1 . A method for producing a surface-treated steel sheet for battery containers, comprising: a first process of forming an iron-nickel alloy plating layer on at least one side of a steel sheet; a second process of forming a nickel plating layer on the iron-nickel alloy plating layer; and a third process of performing a thermal treatment after forming the nickel plating layer so as to form an iron-nickel alloy layer having an outermost surface, at which a content ratio of Fe atoms is 12 to 55 atomic %, on an outermost layer by thermal diffusion. 2 . The method for producing the surface-treated steel sheet according to claim 1 , wherein the iron-nickel alloy plating layer is formed in the first process to have a content ratio of Fe atoms being 15 to 65 atomic %. 3 . The method for producing the surface-treated steel sheet according to claim 1 , wherein the nickel plating layer is formed in the second process to have a thickness of 0.1 to 0.5 μm.
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Classifications
with two or more layers of only inorganic material · CPC title
Energy storage using batteries · CPC title
of nickel or cobalt · CPC title
containing manganese · CPC title
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
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- What does patent US2016168657A1 cover?
- Provided is a method for producing a surface-treated steel sheet for battery containers including: a first process of forming an iron-nickel alloy plating layer on at least one side of a steel sheet; a second process of forming a nickel plating layer on the iron-nickel alloy plating layer; and a third process of performing a thermal treatment after forming the nickel plating layer to form an ir…
- Who is the assignee on this patent?
- Toyo Kohan Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C21D9/46. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).