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Electrode lead wire member for nonaqueous batteries

A technology for electrode leads and components, which is applied in the field of electrode lead components, can solve problems such as battery performance degradation, electrolyte leakage, and lithium-ion battery fires, and achieve the effects of less voids, less immersion, and good adhesion

Inactive Publication Date: 2015-07-01
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, leakage of the electrolyte occurs, and not only the performance of the battery decreases, but the lithium-ion battery may also catch fire.

Method used

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  • Electrode lead wire member for nonaqueous batteries
  • Electrode lead wire member for nonaqueous batteries
  • Electrode lead wire member for nonaqueous batteries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080]As an electrode lead member for a lithium battery, an aluminum sheet obtained by cutting an aluminum plate having a thickness of 200 μm into a size of 50 mm×60 mm was used. On the surface of the degreased and cleaned aluminum sheet, 1 wt % of an amorphous polymer having a polyvinyl alcohol skeleton containing a hydroxyl group (manufactured by Nippon Synthetic Chemicals Co., Ltd., trade name: G polymer resin) and 2 wt % of fluorine An aqueous solution obtained by dissolving chromium (III) is applied to both sides with a thickness of 0.5 μm using a 10 mm width type coater, and the thin film layer is laminated, and further heat-dried in an oven at 200°C to bake the resin while simultaneously The electrode lead member of Example 1 was obtained by crosslinking. At this time, it was confirmed that the thin-film coating was applied not only to the front and back surface layers of the electrode lead member of Example 1, but also to both end surfaces of the electrode lead member....

Embodiment 2

[0085] As an electrode lead part for a lithium battery, nickel sulfamate is plated with a thickness of 1 to 5 μm on the surface of a 200 μm thick copper sheet (50 mm×60 mm in size), and 1 wt % of a nickel containing An aqueous solution obtained by dissolving an amorphous polymer with a polyvinyl alcohol skeleton of a hydroxyl group (manufactured by Nippon Synthetic Chemicals Co., Ltd., trade name: G Polymer Resin) and 3 wt % chromium (III) fluoride was applied to a thickness of 0.5 μm. Cloth, laminated film coating, and further bake the resin by heating and drying in an oven at 200°C.

[0086] In addition, on the film coating of the electrode lead part, two layers of epoxy-modified polyethylene film (using Sumitomo Chemical Co., Ltd. After mixing BONDFAST (product name) with random copolymer polypropylene resin (product name) and polymer alloying, use a film machine to make a 100 μm film) double-sided thermal bonding, in a hot air oven at 50 ° C Keep for 48 hours. A part of ...

Embodiment 3

[0089] As an electrode lead part for a lithium battery, nickel sulfamate is plated with a thickness of 1 to 5 μm on the surface of a 200 μm thick copper sheet (50 mm×60 mm in size), and 1 wt % of a nickel containing An aqueous solution obtained by dissolving an amorphous polymer with a polyvinyl alcohol skeleton of a hydroxyl group (manufactured by Nippon Synthetic Chemicals Co., Ltd., trade name: G Polymer Resin) and 3 wt % chromium (III) fluoride was applied to a thickness of 0.5 μm. The cloth was laminated with a film coating, and further heated and dried in an oven at 200° C. to bake the resin.

[0090] In addition, on the film coating of the electrode lead part, two layers of epoxy-modified polypropylene film (made by Mitsui Chemicals Co., Ltd. ADMER (product name) resin, maleic anhydride modified polypropylene resin blend compound 1.5wt% epoxy compound (product name / Mitsubishi Chemical Epikote 1001) containing hydroxyl, make it with the maleic anhydride functional group ...

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Abstract

The present invention relates to an electrode lead wire member (18) which is led out from a container for nonaqueous batteries, said container being obtained using, as an outer package material, a film laminate that is composed of an aluminum foil and a resin film. This electrode lead wire member (18) comprises a lead-out part (21) that is formed of a metal. A thin film coating layer (22), which is formed from a metal fluoride or a derivative thereof and a resin containing a hydroxyl group or a copolymerized resin thereof, and a sealant layer (23) are sequentially laminated on the lead-out part (21). The sealant layer (23) is thermally bonded onto the surface of the lead-out part (21), and contains a thermally bondable polyolefin resin having an epoxy functional group at least in a portion that is on the side of the interface between the sealant layer (23) and the lead-out part (21).

Description

technical field [0001] The present invention relates to an electrode lead member for a non-aqueous battery using an organic electrolyte as an electrolytic solution such as a lithium ion battery as a secondary battery and an electric double layer capacitor (hereinafter referred to as a capacitor). Background technique [0002] In recent years, as attention to global environmental issues has increased, the spread of electric vehicles and effective use of natural energy such as wind power generation and solar power generation have become issues. Along with this, in these technical fields, secondary batteries such as lithium ion batteries and capacitors are attracting attention as storage batteries for storing electrical energy. In addition, as external containers for storing lithium-ion batteries used in electric vehicles, etc., there are used flat bags made of laminates for battery exteriors made of laminated aluminum foil and resin films, and / or deep-drawn or embossed bags. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/06H01M2/02H01M50/119H01M50/121H01M50/129H01M50/178H01M50/55H01M50/553H01M50/562
CPCH01M2/06H01M2/0287H01G11/80H01M2/0275Y02E60/13H01M2/0285H01M2/021H01G11/74H01M2/0277H01M50/124H01M50/553H01M50/178H01M50/129H01M50/55H01M50/119H01M50/121H01M50/562Y02E60/10
Inventor 饭冢宏和武井邦浩金田康宏堀智子
Owner FUJIMORI KOGYO CO LTD
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