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Method for packaging flexible package cell

A technology for flexible packaging batteries and packaging methods, which is applied in secondary battery manufacturing, sustainable manufacturing/processing, and climate sustainability. Avoid bad appearance, good hot-melt effect, good heat-sealing effect

Active Publication Date: 2014-04-02
SHENZHEN CHAM BATTERY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of flexible packaging battery packaging, the packaging process between the tabs on the top of the battery and the flexible packaging material is complicated
In addition, most of the ear-end packaging of soft-pack batteries adopts manual or semi-automatic packaging methods. Although certain fixtures are used in the process, the upper and lower soft packaging films are not easy to align and the soft packaging films are easily misplaced during packaging, resulting in battery leakage or poor appearance.

Method used

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  • Method for packaging flexible package cell
  • Method for packaging flexible package cell

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A method for encapsulating soft-packaged batteries, such as figure 2 shown, including the following steps:

[0035] Step S11: Obtain the winding core 1 connected with the positive tab 11 and the negative tab 12, the tab insulating rubber sleeve 13 and the aluminum-plastic film 2; wherein, the length of the aluminum-plastic film 2 is twice the height of the core;

[0036] Step S12: according to the size of the winding core 1, punch two identical pits 21 on the same surface of the aluminum-plastic film 2, and the two pits 21 should be symmetrical along the folding line 23;

[0037] Step S13: Cut the flexible packaging film 2 punched with the pit 21 so that the heat-sealing width of the flexible packaging film 22 at the tab end is 3.0 mm;

[0038] Step S14: The tab insulating rubber sleeve 13 is respectively sleeved on the positive pole tab 11 and the negative pole tab 12, and then heat-sealed so that the insulating rubber sleeve 13 is respectively bonded and sealed to t...

Embodiment 2

[0041] A method for encapsulating soft-packaged batteries, such as image 3 shown, including the following steps:

[0042] Step S21: Obtain the winding core 1 connected with the positive tab 11 and the negative tab 12, the tab insulating rubber sleeve 13 and the aluminum-plastic film 2; wherein, the length of the aluminum-plastic film 2 is twice the height of the core;

[0043]Step S22: According to the size of the winding core 1, punch two identical pits 21 on the same surface of the aluminum-plastic film 2, and the two pits 21 should be symmetrical along the folding line 23;

[0044] Step S23: Cut the flexible packaging film 2 punched with the pit 21 so that the heat-sealing width of the flexible packaging film 22 at the tab end is 4.5 mm;

[0045] Step S24: Paste the tab insulating rubber sleeves 13 corresponding to the number of positive tabs 11 and negative tabs 12 on the flexible packaging film with a heat-sealing width of 3.0-4.5 mm, that is, the flexible packaging fil...

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Abstract

The invention discloses a method for packaging a flexible package cell. The method comprises the following steps of: acquiring a winding core connected with a positive lug and a negative lug and a flexible package film; punching the flexible package film into a pit according to the size of the winding core; cutting the flexible package film on which the pit is punched to enable the heat sealing width of the flexible package film at the lug end to be 3.0-4.5mm; placing the winding core in the pit and placing the positive lug and the negative lug at the flexible package film with the heat sealing width of 3.0-4.5mm; and coating NP glue on the surfaces of the flexible package films which are arranged at two sides of the positive lug and the negative lug and in contact with the positive lug and the negative lug, enabling the positive lug and the negative lug to be fixedly bonded with the flexible package films and then heat sealing and forming. According to the method for packaging the flexible package cell, which is disclosed by the invention, the NP glue is coated at two sides of the lugs before heat sealing, so that the flexible package film is relatively fixed with the lugs, the malposiiton of the flexible package films at the lugs during heat sealing is effectively prevented, further the defects of battery electrolyte leakage and poor attractiveness are effectively avoided and the qualified rate of the battery is improved.

Description

technical field [0001] The invention belongs to the technical field of battery packaging, and in particular relates to a soft packaging battery packaging method. Background technique [0002] For flexible packaging batteries, such as flexible packaging lithium-ion batteries, due to the presence of internal organic solvents, the flexible packaging materials must be able to resist the swelling, dissolution, absorption, etc. of organic solvents. The flexible packaging material of the flexible packaging battery completely isolates the cell electrode and electrolyte from the external environment, so that the interior is in a vacuum, anaerobic, and water-free environment, so as to ensure the high performance requirements of the flexible packaging battery cell. With this layer of flexible packaging Only when the battery exists, the battery can be used normally. If the soft package fails, the service life of the battery will be terminated, resulting in scrapping. Therefore, the pack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 段红坤赵悠曼张义
Owner SHENZHEN CHAM BATTERY TECHNOLOGY CO LTD
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