Method for packing the adhesive tape at the bottom of the lithium ion battery coil core and its device

A lithium-ion battery and tape-packing technology, which is applied in the manufacture of secondary batteries, non-aqueous electrolyte batteries, and electrolyte batteries, can solve problems such as potential safety hazards and affect the quality of battery products, and achieve improved quality, good effects, and simple operation processes. Effect

Active Publication Date: 2007-09-12
TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

This will affect the quality of battery products. If it cannot be eliminated in an effective way in the future, it will cause more serious safety hazards.

Method used

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  • Method for packing the adhesive tape at the bottom of the lithium ion battery coil core and its device
  • Method for packing the adhesive tape at the bottom of the lithium ion battery coil core and its device
  • Method for packing the adhesive tape at the bottom of the lithium ion battery coil core and its device

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing 1~Fig. 4 and preferred embodiment, the concrete implementation step that the method of the present invention adopts is described in detail as follows:

[0018] (1) Paste protective tape on the lower surface of the bottom of the core as usual, and then set a diaphragm pinch with a diameter of 0.5mm to 1mm in parallel on the upper surface of the diaphragm at the bottom of the core. For example, a high-gloss stainless steel thin shaft can be used. It is determined according to the remaining length of the diaphragm at the bottom of different cores, so that the diaphragm on the side is squeezed and shrinks slightly inward; the length of the end shaft is 2 to 15mm longer than the width of the core;

[0019] (2) Flip the adhesive tape pasted on the lower surface of the bottom of the core upwards, and wrap it together with the diaphragm pinch; due to the protection of the diaphragm pinch, the bottom diaphragm and the bottom pole pie...

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Abstract

The invention relates to a method to paste adhesive tape on the bottom of lithium ion battery coil core and its equipment, the method has the following steps: (1) according to the general pastes adhesive tape in the coil core base down surface, and parallel press a membrane press axis with 0.5-1 millimeter diameter on the upper surface of the base coil core membrane; (2) turn over the adhesive tape upward which glues on the core base down surface, and wrapping together with the membrane press axis; (3) smoothing draw out the membrane press axis from the one side. The equipment through traction cylinder, encapsulate cylinder and the press axis cylinder separately drive the rolling mechanism, press axis clamping fixture and so on to complete the setting of press axis and extracting press axis. Because of the membrane press axis protection, the membrane of the coil core base and the pole in the ture over upwards processing, the maintenance is good, cannot contusion and up turn, effectively guarantees the battery productquality.

Description

technical field [0001] The invention relates to a method and a device for wrapping an adhesive tape on a flexible substrate of a lithium ion battery, in particular to a method and a device for wrapping an adhesive tape at the bottom of a lithium ion battery core. Background technique [0002] At present, the production competition of lithium-ion secondary batteries is more and more concentrated in China, Japan, and South Korea. All major companies have continuously explored and improved the performance and manufacturing process of lithium-ion secondary batteries. In the production process of lithium-ion batteries, according to the technical requirements, it is necessary to wrap a layer of insulating tape on the bottom of the formed core to tighten and shape the positive and negative electrodes and separators at the bottom of the core. The contusion occurs, and at the same time it plays the role of insulation. At present, the bottom tape is usually wrapped by hand in China. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/38H01M10/058
CPCY02E60/10Y02P70/50
Inventor 吉跃华黄恩勇刘志盛
Owner TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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