Method for compression to one of battery

A technology of batteries and forming cabinets, which is applied in the field of soft-packed liquid lithium-ion batteries, can solve the problems of large changes in battery cell thickness and large drop in battery voltage, and achieve the effect of voltage stability

Inactive Publication Date: 2007-05-23
曾坚义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the chemical process of soft-pack liquid lithium-ion batteries (referring to the activation process of the battery, also known as the aging process) is not pressurized in the chemical process, but in the secondary process (referring to the sorting process of the battery) This method has the following disadvantages: first, the voltage drop of the battery after the first change is large, and second, the thickness of the cell changes greatly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A method of pressurizing a battery comprises the steps of:

[0015] a. Select a suitable splint according to the battery model;

[0016] b. Wipe the splint with alcohol;

[0017] c. Clamp the static battery up and down with splints to expose the tabs and airbags;

[0018] d. Clamp the splint with long tail clips or steel clips;

[0019] e. Go to the formation cabinet for formation, and remove the splint and battery after formation.

[0020] The size of the splint is equal to or greater than the length and width of the battery.

[0021] The surface of the plywood is required to be smooth and not easily deformed. The material is plexiglass board or bakelite board. The four corners of the board can be right angles or rounded.

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PUM

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Abstract

The invention relates to a method for pressurizing battery, which comprises: a, based on battery type, selecting matched clamping plate; b, using alcohol to clean clamping plate; c, clamping battery via plates, only exposing polar ear and bubble; d, using long clamper or steel clamper to clamp plates to exhaust; e, pressurizing in pressurizing tank, taking out clamping plates and battery. The clamping plate is not smaller than the battery, with smooth faces, while it will not deform and is made from organic glass plate or bakelite. The invention uses pressurize exhaustion to reduce the thickness difference into 0.1mm.

Description

Technical field: [0001] The invention relates to a production method of a soft pack liquid lithium ion battery, in particular to a battery pressurization method. Background technique: [0002] At present, the chemical process of soft-pack liquid lithium-ion batteries (referring to the activation process of the battery, also known as the aging process) is not pressurized in the chemical process, but in the secondary process (referring to the sorting process of the battery) This method has the following disadvantages: first, the voltage drop of the battery after the first transformation is large, and second, the thickness of the battery cell changes greatly. Invention content: [0003] The technical problem to be solved by the present invention is to provide a battery pressurization method, after which the voltage drop of the battery is small and the thickness of the cell changes little. [0004] In order to solve the problems of the technologies described above, the techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/38H01M10/40H01M6/14H01M10/44H01M10/058
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 何安轩黄泽伟刁胜谭欣荣曹丽君陈伟成
Owner 曾坚义
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