Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrode cable member for non-water electrolyte battery

A technology of electrode wires and components, which is applied in the field of electrode wire components, can solve the problems of poor corrosion resistance, low electrolyte resistance, and non-resistance, and achieve the effect of suppressing leakage

Active Publication Date: 2014-03-05
FUJIMORI KOGYO CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since chromium, a heavy metal, is used in chromate treatment, it is not preferable from the viewpoint of environmental protection. Hexavalent chromium cannot be used because it is a harmful substance that affects the human body. At present, chromate of trivalent chromium is used. Treatment fluid
In addition, chemical conversion treatments other than chromate treatment are less effective in improving corrosion resistance
[0009] And, in existing electrode wire member, in these two electrodes of positive pole and negative pole, its resistance to electrolyte is higher as the aluminum material of positive electrode member, and as the copper plate of negative electrode member, even if nickel-plated on surface layer, Furthermore, the chromate treatment of trivalent chromium is implemented, and its resistance to electrolyte is still low.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrode cable member for non-water electrolyte battery
  • Electrode cable member for non-water electrolyte battery
  • Electrode cable member for non-water electrolyte battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] As the lead-out portion of the electrode lead member for the lithium battery, an aluminum sheet cut into a size of 50 mm×60 mm from an aluminum plate having a thickness of 200 μm was used. On the surface of the aluminum sheet degreased and cleaned, use a 10 mm wide dispenser to coat both sides, and coat a 1 μm thick non-crystalline polymer having a hydroxyl-containing polyvinyl alcohol skeleton dissolved in 3 wt% (Nippon Synthetic Chemical Co., Ltd. Co., Ltd., trade name: G polymer resin) and an aqueous solution of 1 wt% chromium (III) fluoride, thereby laminating the film coating layer, and further heating and drying in an oven at 200 ° C, so that the baked film coating The coating resin is simultaneously cross-linked. At this time, it was confirmed that the thin-film coating layer was formed not only on the front and rear surface layers of the lead-out portion but also on both ends (edge ​​portions) of the lead-out portion in a cross section perpendicular to the exten...

Embodiment 2

[0071] As the lead-out part of the electrode lead member for lithium batteries, the surface of a 200μm-thick copper plate (50mm×60mm in size) is plated with nickel sulfamate plating in a thickness of 2 to 5μm, and a part of it is coated with a thickness of 1μm An aqueous solution in which 3 wt% of an amorphous polymer having a hydroxyl-containing polyvinyl alcohol skeleton (manufactured by Nippon Synthetic Chemicals Co., Ltd., trade name: G Polymer Resin) and 1 wt% of chromium (III) fluoride was dissolved, whereby the layer The film coating layer was pressed, and further heat-dried in an oven at 200° C., so that the resin of the film coating layer was cross-linked while being baked.

[0072] Further, a single-layer film of a maleic anhydride-modified polypropylene film as a sealing material layer was heat-bonded on both sides by heat-sealing on the film coating layer on the surface of the lead-out part (using a film-forming machine manufactured by Mitsui Chemicals, a polypropyl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

PROBLEM TO BE SOLVED: To provide an electrode lead wire member for nonaqueous battery that is improved in corrosiveness so as to prolong the lifetime of a lithium ion battery by avoiding an adverse influence of an increase in corrosiveness even when the corrosiveness increases as the electrolyte of the lithium ion battery reacts with water to produce hydrogen fluoride.SOLUTION: The present invention relates to an electrode lead wire member 18 lead out of a storage container for nonaqueous battery which uses a laminate film stack of an aluminum foil and a resin film as a jacket material. The electrode lead wire member has a metallic lead-out part 21, and a sealant layer 23 is laminated on a surface of the lead-out part 21 via an anticorrosive thin-film coating layer 22 made of a resin having a skeleton of polyvinyl alcohol containing a hydroxyl group or a copolymer resin thereof. The thin-film coating layer 22 is made of metal fluoride and a derivative thereof, and includes a material cross-linking the resin having the skeleton of polyvinyl alcohol containing the hydroxyl group or the copolymer resin thereof.

Description

technical field [0001] The present invention relates to an electrode lead member used in a nonaqueous electrolyte battery (NONAQUEOUS ELECTROLYTE CELL) using an organic electrolyte as an electrolytic solution, such as a lithium ion battery as a secondary battery or an electric double layer capacitor (hereinafter referred to as a capacitor). [0002] This application claims priority based on the Japanese invention patent application with the filing date of August 24, 2010 and the application number of 2010-187428, and its content is cited in this application. Background technique [0003] In recent years, with the deepening of global environmental problems, the spread of electric vehicles and the effective use of natural energy such as wind power generation and solar power generation have become issues. Accordingly, in these technical fields, secondary batteries such as lithium ion batteries and capacitors are attracting attention as storage batteries for storing electric ene...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/30H01G9/008H01G4/228H01G11/66H01G11/74H01G11/78H01M2/02H01M2/08H01M2/26
CPCY02E60/12Y02T10/7011Y02E60/122Y02E60/10H01G11/74Y02E60/13H01M10/0525H01M50/531H01M50/571H01M50/183H01M50/172H01M50/543H01M50/116H01M50/124
Inventor 饭塚宏和武井邦浩金田康宏山田雅子
Owner FUJIMORI KOGYO CO LTD