Lithium battery positive and negative materials ceramic cutting die

A positive and negative electrode and lithium battery technology, applied in the field of punching dies, to achieve high toughness, good punching effect, and low cost

Active Publication Date: 2019-08-27
东莞致宏精密模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a ceramic cutting mold for positive and negative materials of lithium batteries, which can improve the problems of burrs and broken gaps that often occur when punching copper foil and aluminum foil, and improve the punching efficiency of copper foil and aluminum foil. Cut the quality and reduce the production cost of the enterprise

Method used

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  • Lithium battery positive and negative materials ceramic cutting die
  • Lithium battery positive and negative materials ceramic cutting die
  • Lithium battery positive and negative materials ceramic cutting die

Examples

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Embodiment Construction

[0026] Such as Figure 1-4 As shown, a ceramic cutting die for positive and negative materials of a lithium battery comprises an upper knife seat 10 and a lower knife seat 20, the lower end of the upper knife seat 10 is provided with a downwardly protruding ceramic punch 30, and the lower knife seat 10 is provided with a ceramic punch 30 protruding downward. The knife seat 20 is provided with a knife edge 21 matched with a ceramic punch 30, and the ceramic punch 30 is provided with an installation through hole 31, and a metal tooth cover 32 is embedded in the installation through hole 31, and the ceramic punch 30 passes through the Bolts and metal braces 32 are threaded and detachably mounted on the upper tool holder 10; the ceramic punch 30 includes the following components by weight: 35-40 parts of iron, 6.5-7.5 parts of nickel, and 6-8 parts of copper , 5.5-7.5 parts of chromium, 3-5 parts of niobium, 1-2 parts of aluminum, 2-3 parts of carbon, 0.45-0.8 parts of silicon, 0....

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Abstract

The invention discloses a lithium battery positive and negative electrode material ceramic trimming mold. The lithium battery positive and negative electrode material ceramic trimming mold comprises an upper tool holder and a lower tool holder, wherein a ceramic punch projecting outwards is arranged at the lower end of the upper tool holder; a tool edge matched with the ceramic punch is arranged on the lower tool holder; an installation through hole is formed in the ceramic mold; a metal brace is embedded in the installation through hole; and the ceramic punch is screwed with the metal brace through a bolt to be detachably and fixedly installed on the upper tool holder. A ceramic material is adopted for replacing a traditional tungsten steel material, the problems that the tungsten steel material is easily heated during working and burrs appear on the punching surfaces of copper foils and aluminum foils due to the adhesion of copper powder and aluminum powder during punching are solved, and the punching quality of copper foils and aluminum foils is greatly improved; and the metal brace is arranged on the ceramic punch, so that the problem that a traditional ceramic mold is inconvenient to install and complicated in working procedures is effectively solved.

Description

technical field [0001] The invention relates to the technical field of punching dies, in particular to a ceramic cutting die for positive and negative materials of lithium batteries. Background technique [0002] A battery refers to a cup, tank or other container or part of a composite container that contains an electrolyte solution and a metal electrode to generate current, and is a device that converts chemical energy into electrical energy. With the advancement of science and technology, batteries generally refer to small devices that can generate electrical energy, and play a significant role in all aspects of modern social life. [0003] As we all know, in the production process of batteries, it is necessary to punch the battery pole pieces, and then blank and pack the punched pole pieces. However, the battery pole piece is mainly made of copper foil. The cutters of the punching dies in the prior art are generally made of tungsten steel. During use, the tungsten steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/04H01M10/0525B26F1/44
CPCB26F1/44B26F2001/4436H01M4/0435H01M10/0525Y02E60/10
Inventor 郑智仙
Owner 东莞致宏精密模具有限公司
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