Punching device for aluminum foil or copper foil of lithium battery and production technology

A technology for punching equipment and lithium batteries, which is applied in battery electrodes, circuits, electrode manufacturing, etc. It can solve problems such as difficult to meet the requirements of use, large burr size, and irregular hole distribution, so as to achieve regular punching distribution and improve battery life. , Provide the effect of battery capacity

Inactive Publication Date: 2016-07-13
廖雪光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no domestic manufacturer capable of producing porous foils, and some manufacturers are working on the technical research of this product, using the acupuncture method, but the distribution of holes is irregular, especially the large burr size, which is difficult to meet the use requirements

Method used

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  • Punching device for aluminum foil or copper foil of lithium battery and production technology

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Embodiment Construction

[0021] Below in conjunction with each specific embodiment and accompanying drawing, the present invention will be further described:

[0022] Such as figure 1 As shown, the punching equipment for aluminum foil and copper foil of a lithium battery, the punching equipment includes a frame, a pressurized water pump 1, a water knife 6, a porous cutting upper die 2, and a feed roller 4, a transmission Roller 3, punching lower die table 5, pressurized water pump 1 pressurizes water into water knife 6, feeding roller 4 sends aluminum foil or copper foil to punching lower die table 5 through conveying roller 3, conveying roller 3 It can be driven by a motor to rotate, and the high-pressure water of the water jet 6 passes through the holes of the cutting upper die 2 and is sent to the punching lower die workbench 5 to punch holes in the foil or copper foil. small

[0023] The equalizing water pump 1 pressurizes the water to 100-400MPa, and the high-pressure water jet quickly enters t...

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PUM

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Abstract

The invention relates to a punching device for aluminum foil or copper foil of a lithium battery and a production technology.The punching device comprises a machine frame, a pressurization water pump, a water jet cutter, an upper cutting die provided with multiple holes, a feeding roller, a conveying roller and a lower punching die work table, wherein water is pressurized and fed into the water jet cutter through the pressurization water pump, a feeding roller for the aluminum foil or copper foil is sent to the lower punching die work table through the conveying roller, and high-pressure water of the water jet cutter is sent to the lower punching die work table through a pore pair of the upper cutting die to punch the aluminum foil or copper foil.The punching technology comprises the steps of 1, installing an aluminum foil or copper foil roll on the feeding roller; 2, sending the aluminum foil or copper foil onto a work table to be processed through the feeding roller; 3, pressurizing water through the pressurization water pump; 4, sending the upper cutting die provided with multiple holes to the work table to be processed close to the aluminum foil or copper foil, and turning on a water jet cutter cutting switch to enable high-pressure water to penetrate through the holes in the upper cutting die so as to conduct punching on the aluminum foil or copper foil.

Description

technical field [0001] The invention relates to the technical field of processing aluminum foil and copper foil of a lithium battery, and specifically refers to punching equipment and a production process for punching aluminum foil and copper foil of a lithium battery. Background technique [0002] The positive and negative materials of lithium batteries are aluminum foil and copper foil. At present, the most commonly used base materials for lithium battery positive and negative materials are double-sided smooth aluminum foil and copper foil. The basic production process is to apply rich The coating of lithium ions is formed by applying electron-rich graphite materials on the surface of copper foil substrates and bonding them under heavy pressure. This double-sided smooth aluminum foil and copper foil substrate has obvious shortcomings, that is, the surface material (coating slurry, graphite) has limited adhesion strength and is easy to fall off, which directly affects the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/134H01M4/1395H01M4/04
CPCH01M4/04H01M4/134H01M4/1395Y02E60/10
Inventor 张红兵刘华熙
Owner 廖雪光
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