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Method for preventing surface of flexible package lithium-ion battery from being corroded

A lithium-ion battery and flexible packaging technology, which is applied in non-aqueous electrolyte battery, electrolyte battery manufacturing, sustainable manufacturing/processing, etc., can solve problems that affect product quality, and the surface is susceptible to corrosion, so as to reduce production costs and prevent surface corrosion , Improve the effect of product qualification rate

Inactive Publication Date: 2012-09-05
珠海格力新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when producing and processing soft-packaged lithium-ion batteries, the surface is easily corroded, which affects product quality

Method used

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  • Method for preventing surface of flexible package lithium-ion battery from being corroded
  • Method for preventing surface of flexible package lithium-ion battery from being corroded

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] like figure 1 Shown, in the present embodiment, a kind of method for preventing the surface corrosion of soft package lithium-ion battery, this method comprises the following steps:

[0020] (1) In the assembly process of flexible packaging lithium-ion batteries, after the positive sealing process of the battery cells, a protective film is added to the surface of the battery cells. The protective film is a PE protective film with a temperature resistance higher than 80 ° C. The protective film is used to stick to the battery. The core part and does not stick to the air bag part;

[0021] (2) The lithium-ion battery with the protective film attached is still operating in accordance with the normal operating procedures;

[0022] (3) Remove the attached protective film before the final inspection and storage of lithium-ion batteries.

[0023] The operation procedure in said step (2) includes the following steps:

[0024] a. Inject liquid after baking; ...

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Abstract

The invention discloses a method for preventing the surface of a flexible package lithium-ion battery from being corroded, and the method can be used for effectively protecting the surface of the flexible package lithium-ion battery, and is good in economic significance. The method comprises the following steps of: when the flexible package lithium-ion battery is assembled, and after a battery core is positively packaged, additionally gluing a protective film on the surface of the battery core; running the lithium-ion battery packaged with the protective film according to a normal operation sequence; tearing up the additionally-glued protective film before the lithium-ion battery is finally detected and put in storage, so that the lithium-ion battery can be produced; and protecting the production process of the battery from the aspect of physical protection, so that the product percent of pass can be effectively improved, and the production cost can be reduced. The method can be widely applicable to the technical field of battery energy sources.

Description

technical field [0001] The invention relates to a method for preventing surface corrosion of a soft-packaged lithium-ion battery. Background technique [0002] Lithium-ion battery is a new type of rechargeable battery developed in the past ten years. It has high specific energy, no memory effect, green and environmental protection, and its discharge voltage is three times that of nickel-cadmium and nickel-hydrogen batteries. Wide attention, very rapid development. At present, only a few countries have achieved industrialization, and my country is the earliest developing country in the industrialization and development of lithium-ion batteries. After several years of development, especially under the active promotion of relevant national policy guidance, domestic lithium-ion batteries have made rapid progress, and various performances of products have made considerable progress. [0003] There are currently two common lithium-ion battery technologies: liquid lithium-ion bat...

Claims

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Application Information

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IPC IPC(8): H01M10/058
CPCY02E60/10Y02P70/50
Inventor 许名飞陈美超李键曾志雄
Owner 珠海格力新能源科技有限公司
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