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A lithium ion torsion battery diaphragm punching device

A battery diaphragm and lithium ion technology, applied in the field of lithium ion twist type battery diaphragm punching devices, can solve the problems of uneven pressure, low utilization rate of the diaphragm, and difficulty in ensuring the pressure position of the diaphragm, so as to achieve uniform force and improve The effect of utilization, good performance

Active Publication Date: 2019-07-05
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lithium-ion torsion battery diaphragm punching device, which can realize rapid and complete punching of the diaphragm, and solve the problem of low utilization rate of the diaphragm in the traditional punching method, difficulty in ensuring the pressure position of the diaphragm and insufficient pressure. uniform problem

Method used

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  • A lithium ion torsion battery diaphragm punching device
  • A lithium ion torsion battery diaphragm punching device
  • A lithium ion torsion battery diaphragm punching device

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Embodiment Construction

[0021] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0022] figure 1 A lithium-ion torsion battery diaphragm punching device is shown, comprising a base 1, a pressing plate 2 and a punching block 4, the four corners of the pressing plate 2 are respectively opened with a circular through hole, and the four corners of the base 1 The corners are respectively provided with a cylinder for assembling the pressing plate and moving the pressing plate up and down along it, and the upper surface of the base 1 is provided with a diaphragm 5 and weighing paper 6 (the weighing paper is a commercially available square weighing paper) ) of the tray 3, the tray 3 has a cross-shaped groove ( figure 2 As shown), the groove is the superposition of the transverse rectangular groove 32 for placing the diaphragm 5 and the lon...

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Abstract

A lithium-ion torsion battery diaphragm punching device, which relates to the technical field of lithium-ion batteries, includes a base, a pressing plate and a punching block. The four corners of the base are respectively provided with a pressing plate for assembling the pressing plate and moving the pressing plate up and down along it. The upper surface of the base is provided with a tray for placing the diaphragm and weighing paper, the tray is provided with a cross-shaped groove, and the punching block is placed in the groove of the tray. The lower surface of the punch block is provided with several punches. The device of the invention can realize rapid and complete punching of the diaphragm of the lithium ion button battery, can effectively guarantee the punching quality, greatly improves the utilization rate of the diaphragm, and has good operability and safety.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, and in particular to a punching device for lithium-ion torsion battery separators. Background technique [0002] Lithium-ion button batteries are generally composed of negative electrode cover, nickel foam, negative electrode sheet, diaphragm, positive electrode sheet, electrolyte, and positive electrode cover. The diaphragm is a high value-added material with the highest technical barriers for power lithium batteries, and the current market supply is serious. Insufficient, mainly rely on imports, expensive. During the production process of button batteries, the separator needs to be punched into a circular sheet structure, but the separator has strong toughness, it is not easy to cut into a suitable size, and the edges are prone to burrs. The integrity of the separator is one of the key factors that directly affect the performance of the battery. one. [0003] Ordinary punching m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/14H01M50/406
CPCH01M50/403Y02E60/10
Inventor 高冲胡晓明左龙龙许涛李干钱涛
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY