Packaging method for polymer lithium ion battery cell

A technology of lithium-ion batteries and packaging methods, which is applied to small-sized batteries/battery packs, large-sized batteries/battery packs, batteries, etc., and can solve the problems of lower production efficiency, high rate of shell defective products, and easy generation of scrap products, etc. problems, to achieve the effect of improving the qualification rate and production efficiency, realizing automatic packaging production, and the method is simple and efficient

Inactive Publication Date: 2018-09-25
四川绿鑫电源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the shell of the polymer lithium-ion power battery is an aluminum-plastic film, which is usually punched into a single hole by the aluminum-plastic film, and then the battery cell is covered with the aluminum-plastic film; when the battery reaches a certain thickness (≥9mm) , the stamping depth of the single pit of the aluminum-plastic film generally does not meet the requirements, so it is necessary to combine two single-pit aluminum-plastic films together. 2. It is inconvenient to combine two single-pit aluminum-plastic films to coat the battery cells, which greatly reduces the production efficiency.

Method used

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  • Packaging method for polymer lithium ion battery cell
  • Packaging method for polymer lithium ion battery cell
  • Packaging method for polymer lithium ion battery cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, if Figure 1~4 Shown, a kind of encapsulation method for polymer lithium-ion battery cell, comprises the following steps:

[0029] Step 1. Stamping on the aluminum-plastic film to form the aluminum-plastic film stamping part 1 of the cell:

[0030] (a) Stamping depressions on the aluminum-plastic film to form the first battery housing cavity 2 and the second battery housing cavity 3, the first battery housing cavity 2 and the second battery housing cavity 3 are on the plane of the aluminum-plastic film They are mirror images of each other along the axis, and the battery cell containing cavity 6 formed by the combination of the first cell containing cavity 2 and the second cell containing cavity 3 matches the volume and shape of the polymer lithium-ion battery cell;

[0031] (b) Stamping and forming an airbag groove 4 beside the first cell accommodating chamber 2 on one side of the axis;

[0032] Step 2. Put the polymer lithium-ion battery cell into th...

Embodiment 2

[0041] In this example, if Figure 1~4 Shown, a kind of encapsulation method for polymer lithium-ion battery cell, comprises the following steps:

[0042] Step 1. Stamping on the aluminum-plastic film to form the aluminum-plastic film stamping part 1 of the cell:

[0043] (a) Stamping depressions on the aluminum-plastic film to form the first battery housing cavity 2 and the second battery housing cavity 3, the first battery housing cavity 2 and the second battery housing cavity 3 are on the plane of the aluminum-plastic film They are mirror images of each other along the axis, and the battery cell containing cavity 6 formed by the combination of the first cell containing cavity 2 and the second cell containing cavity 3 matches the volume and shape of the polymer lithium-ion battery cell;

[0044] (b) Punching and forming an air bag groove 4 next to the first cell accommodating cavity 2 or the second cell accommodating cavity 3 on one side of the axis;

[0045]Step 2. Put th...

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Abstract

The invention discloses a packaging method for a polymer lithium ion battery cell. The method comprises the steps of: stamping and forming a battery cell aluminum plastic film stamping part on an aluminum plastic film; packaging the polymer lithium ion battery cell in a battery cell accommodating cavity; performing edge-sealing the folded battery cell aluminum plastic film stamping part along theperiphery of the battery cell accommodating cavity and a gasbag groove to form an upper sealing line, a lower sealing line A, a left sealing line and a right sealing line to obtain a primary lithium ion battery cell package shell; charging the polymer lithium ion battery cell, squeezing bubbles into the gasbag groove, and repackaging and cutting. Compared with the prior art, the method used in theinvention is simple and efficient, the operation is more convenient, the automatic packaging production is better realized, and the product qualification rate and production efficiency are greatly improved.

Description

technical field [0001] The invention relates to the technical field of new energy electric vehicles, in particular to a packaging method for polymer lithium-ion battery cells. Background technique [0002] With the lack of energy and the strict control of environmental pollution by the whole society, power vehicles and hybrid vehicles have become a bright spot in today's automobile industry, and because of the characteristics of polymer lithium-ion batteries, they have become the new favorite of power batteries. Including: 1. It has high safety performance, 2. It is suitable for high-power charging and discharging, 3. It can continue to work in high and low temperature environments. There are still many problems that need to be solved as a power supply for power vehicles, and the packaging of polymer lithium-ion battery cells is one of them. [0003] In the prior art, the shell of the polymer lithium-ion power battery is an aluminum-plastic film, which is usually punched in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M10/058H01M10/0525H01M50/10
CPCH01M10/0525H01M10/058H01M2220/20H01M50/10Y02E60/10Y02P70/50
Inventor 杨力齐李晶赵晓东
Owner 四川绿鑫电源科技有限公司
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