Liquid filling method for lithium battery

A lithium battery liquid injection and liquid injection technology, applied in the field of liquid injection method, can solve the problems of high equipment cost, low production efficiency, poor product consistency, etc., achieve advanced and reasonable process methods, improve labor productivity, and good liquid injection consistency. Effect

Inactive Publication Date: 2007-10-03
JIANGSU YINGTAI ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The products injected by the above method have poor consistency, small batches, cumbersome operation, and low production efficiency. Usually, o

Method used

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Examples

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Embodiment Construction

[0006] The method of the present invention is to put the stainless steel bracket neatly arranged with the liquid injection hole downwards into the semi-finished product to be injected into the liquid injection soaking box and seal the cover, and vacuumize the liquid injection soaking box, and after the negative pressure is formed inside the semi-finished product, The electrolyte is injected into the box, and the semi-finished product in the box automatically absorbs the electrolyte under the action of negative pressure. Vacuum degree and liquid injection volume are pre-set before liquid injection according to the quantity of semi-finished products to be injected. Take the 413450A battery as an example, adjust the control air pressure before liquid injection, set the vacuum degree to -0.1Mpa, and the liquid injection volume to 2.7g / cell. 1. Arrange the 350 semi-finished products with liquid injection holes downwards on the stainless steel bracket neatly, then put the stainless ...

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Abstract

A method for injecting electrolyte into lithium battery includes laying stainless steel support with liquid injection holes being arranged regularly towards to injection product into soaking box of injection liquid, covering and sealing said box then vacuuming said box to form negative pressure at internal of said battery, injecting electrolyte into said box and automatically sucking in electrolyte by said battery in said box under action of negative pressure.

Description

technical field [0001] The invention relates to the technical field of a liquid injection method, in particular to the technical field of electrolyte injection methods for batteries and capacitors. Background technique [0002] The traditional liquid injection of batteries and capacitors adopts the rotary table type liquid injection, that is, the liquid injection holes of the battery or capacitor to be injected are arranged upwards, and on the rotary table type liquid injection machine, the liquid injection head is inserted into the liquid injection holes of the battery to be injected Before injecting liquid, unplug one of the injection heads, put it in the beaker under it, and suck the air in the other battery injection needles until the electrolyte flows out from the injection head in the beaker and there is no air bubbles in the tube. The liquid injection volume can be adjusted for liquid injection. Each filled battery needs to be weighed to confirm whether the battery i...

Claims

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Application Information

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IPC IPC(8): H01M2/36H01M50/636
CPCY02E60/10
Inventor 马祥根
Owner JIANGSU YINGTAI ELECTRONICS
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