Nickeliferous nanowire laminated film plated steel belt and production method thereof

A nickel nanowire and composite film technology is applied to the steel strip coated with the nickel-containing nanowire composite film and the field of its preparation, which can solve the problems of poor substrate adhesion, easy scratches, low surface hardness, etc., and achieves reduction of voids. , Conducive to stamping forming, improve the effect of corrosion resistance

Active Publication Date: 2011-01-26
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two major disadvantages in directly coating a layer of composite nickel film containing nanowires on the steel strip. One...

Method used

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  • Nickeliferous nanowire laminated film plated steel belt and production method thereof
  • Nickeliferous nanowire laminated film plated steel belt and production method thereof
  • Nickeliferous nanowire laminated film plated steel belt and production method thereof

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Embodiment 1

[0076] The special steel belt for BDCK battery with a thickness of 0.25mm produced by Shanghai Baoshan Iron and Steel Co., Ltd. was selected as the substrate. Its chemical composition is: C: 0.029% (% means percentage by weight, the same below)

[0077] Si: 0.02%

[0078] Mn: 0.2%

[0079] P: 0.09%

[0080] S: 0.003%

[0081] Al: 0.06%.

[0082] (Surface pretreatment before plating)

[0083] In order to form a good bond between the coating and the substrate, the above-mentioned steel strip is subjected to the following surface pretreatment before electroplating. Since the surface of the low-carbon steel strip used is relatively flat, there is no need for grinding and mechanical polishing before nickel plating, and degreasing and activation treatment are directly carried out. In this example, the chemical high temperature degreasing method is used.

[0084] Degreasing fluid composition:

[0085] NaOH 70g / L

[0086] Na 2 CO 3 40g / L

[0087] Na 3 PO 4 25g / L ...

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Abstract

The invention discloses a nickeliferous nanowire laminated film plated steel belt and a production method thereof. A steel belt is used as a base, and both faces of the steel belt are respectively plated with a nickeliferous nanowire multilayer laminated film. The bottom layer of the nickeliferous nanowire multilayer laminated film is a micron-crystalline nickel plating layer, the middle layer isa nickeliferous nanowire nickel laminated plating layer, and the surface layer is a micron-crystalline nickel cobalt alloy plating layer. The invention also provides the production method of the steel belt, which comprises the following steps of: oiling and activating the base steel belt, and firstly preparing one micron-crystalline nickel plating layer on the base by using a DC electroplating mode; after annealing, preparing one nickeliferous nanowire nickel laminated plating layer on the nickel plating layer by using a pulse electroplating mode; then, preparing one micron-crystalline nickelcobalt alloy plating layer on the nickeliferous nanowire nickel laminated plating layer by using a pulse spraying mode, cleaning by using distilled water and drying; and finally, preserving temperature and removing hydrogen. The steel belt is formed by tightly combining the nickeliferous nanowire multilayer laminated film and a mild-carbon steel belt together, has good corrosion resistance, stamping performance and strong load resistance and can be applied to shell materials of lithium ion power batteries and high-performance alkaline manganese batteries.

Description

technical field [0001] The invention relates to a steel strip plated with a nickel-containing nanowire composite film and a preparation method thereof. Background technique [0002] With the increasingly prominent problems of environmental pollution, energy crisis and resource shortage, countries all over the world are paying more and more attention to the development of high-efficiency, clean, renewable energy and related technologies such as electric vehicles, electric bicycles, and portable electric tools. Lithium-ion batteries are a new type of green energy storage device developed in recent years. Lithium-ion batteries have attracted widespread attention due to their high energy density and high-rate discharge performance. They are not only widely used in portable electronic devices, but also gradually In terms of large and medium-sized electric equipment such as electric vehicles, electric bicycles, and electric tools, especially the lithium-ion power battery among the...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B33/00C25D15/00C25D5/14C25D3/12C25D3/16C25D5/08C25D5/26C25D5/18C21D1/26H01M2/02H01M50/119H01M50/124H01M50/134H01M50/145
CPCY02E60/12Y02E60/10
Inventor 周益春潘勇王建兴李玮周兆峰堵艳艳杜超王子涵
Owner XIANGTAN UNIV
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