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A lithium-ion battery tab bending correction device

A lithium-ion battery and tab technology, applied in the field of lithium-ion battery tab bending correction devices, can solve problems such as battery short circuit, large internal resistance, poor welding of the top cover, etc., to achieve vertical compression resistance enhancement, bending The effect of case reduction

Active Publication Date: 2018-04-10
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of battery short circuit, large internal resistance and poor welding of the top cover caused by tab bending in the actual production process, the invention provides a lithium-ion battery tab bending correction device, which improves the quality of the battery and reduces the The workload of personnel is reduced, which improves the safety of the battery system

Method used

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  • A lithium-ion battery tab bending correction device
  • A lithium-ion battery tab bending correction device

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Embodiment Construction

[0015] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Such as figure 1 As shown, the lithium-ion battery tab bending correction device includes a cantilever shaft 1 , a rubber-covered roller 2 , an L-shaped bracket 3 , a buffer mechanism 5 and a pressing mechanism 4 . The cantilever shaft 1 is a part of the hoist, the rubber-covered roller 2 is sleeved on the cantilever shaft 1, and rotates with the cantilever shaft, the L-shaped bracket 3 is connected with the front end bearing of the cantilever shaft, and the pressing mechanism 4 passes through the buffer mechanism 5 Connect with L-shaped bracket 3.

[0017] The buffer mechanism 5 adopts a downward pressure spring structure, and the spring is used to increase the pressure of the roller, thereby adjusting the depth of the groove.

[0018] The pressing mechanism 4 includes a pressing roller 41, a straightening roller 42, a linear shaft 4...

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Abstract

The invention provides a lithium ion battery tab bending correction device. The lithium ion battery tab bending correction device comprises a cantilever rotary shaft, an encapsulating roller arranged on the cantilever rotary shaft in a sleeving mode and an L-type support connected with a bearing at the front end of the cantilever rotary shaft. The L-type support is provided with a compressing mechanism. The compressing mechanism comprises a compressing roller, a correction roller and a compressing roller double support, wherein the compressing roller and the correction roller are engaged with the encapsulating roller, and the compressing roller double support is used for connecting the compressing roller with the correction roller. The correcting device conducts correction treatment on a tab, strip-shaped grooves are formed in the surface of the tab, the vertical compressive capacity of the tab is enhanced, and after a pole piece is wound, the bending situation of the tab is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a device for correcting the bending of tabs of lithium-ion batteries. Background technique [0002] In the production process of lithium-ion batteries, the state of the tabs of the pole pieces is directly related to the welding status of the battery top cover, the internal resistance of the battery, and more importantly, the consistency of the entire batch of batteries. [0003] In the production process, after the tabs are slitting and formed, they are subjected to external force collisions and the stress release of the pole piece itself, some of the tabs are in a bent state. After being processed by a winding machine, the bending state is more obvious, and some poles The ear bends and enters the diaphragm, causing a large number of winding cores to be repaired manually, and the repaired battery is prone to abnormalities such as short circuit and internal resistance in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D1/02
CPCB21D1/02
Inventor 王绪彪李晓燕李小溪
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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