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Method and device for soaking cell with electrolyte solution

An electrolyte and cell technology, applied in the field of electrolyte infiltration of cells, can solve the problems of few contacts, long time period, poor infiltration effect, etc.

Active Publication Date: 2021-09-14
ZHUHAI COSMX BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the battery makes the electrolyte infiltrate the cell through natural standing, and the time period is relatively long. The number of contacts between the electrolyte and the pole pieces and the inner layer of the diaphragm in the cell is small, and the wetting effect is poor.

Method used

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  • Method and device for soaking cell with electrolyte solution
  • Method and device for soaking cell with electrolyte solution
  • Method and device for soaking cell with electrolyte solution

Examples

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Embodiment 1

[0049] figure 1 It is a flow chart of the method for soaking the cell with the electrolyte solution provided in Embodiment 1 of the present invention. see figure 1 As shown, the method for infiltrating the battery cell with the electrolyte solution provided in Embodiment 1 of the present invention includes:

[0050] S101: Fix and place the cell 20 filled with electrolyte on the rotating tray 10;

[0051]Specifically, the tray can be a tray in the shape of a cylinder, a disc, etc., and a cavity for accommodating the battery cell 20 is provided on the tray, and the battery cell 20 is placed in the cavity. In order to prevent the battery cell 20 from rotating with the tray 10 The shape and size of the cavity for accommodating the electric core 20 can be matched with the shape and size of the electric core 20 by throwing it out from the tray or shifting its position during rotation. In this way, the cell 20 injected with the electrolyte can be fixedly placed in the cavity, so t...

Embodiment 2

[0068] Embodiment 2 of the present invention provides a device for soaking batteries with electrolyte, including a motor and a rotating tray 10 for placing batteries 20 filled with electrolyte, the rotating shaft of the rotating tray 10 is connected to the output shaft of the motor, and the rotating tray When the motor 10 rotates, the battery core 20 is driven to rotate, and the magnitude of the centrifugal force received by the battery core 20 is variable.

[0069] Wherein, the power of the motor can be selected according to actual needs, and the rotating shaft of the rotating tray 10 is connected with the output shaft of the motor, so that the output shaft of the motor drives the rotating tray 10 to rotate, so that the rotating tray 10 drives the electric core 20 to rotate , when the battery cell 20 rotates, the electrolyte in the battery cell 20 will be subject to centrifugal force, and the electrolyte will form an eddy current field between the pole pieces and the diaphragm...

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Abstract

The invention provides a method and device for infiltrating a cell with an electrolyte, which relates to the field of battery technology and is used to increase the number of contact times between the electrolyte in the cell and the pole piece, diaphragm, etc. Time period for wetting the cells. The method for infiltrating the cell with the electrolyte includes: fixing the cell filled with the electrolyte on a rotating tray, the cell rotates with the rotating tray, and when the cell rotates, the electrolyte in the cell is subject to centrifugal force, and the cell The magnitude of the centrifugal force experienced by the core is variable. Under the action of different centrifugal forces, the electrolyte can increase the number of contacts between the electrolyte in the cell and the pole pieces, diaphragms, etc. in the cell, thereby improving the wetting effect, and can also shorten the time period for the electrolyte to fully infiltrate the cell.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method and a device for infiltrating a battery cell with an electrolyte. Background technique [0002] At present, lithium-ion batteries have the advantages of high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras, and laptop computers, but also widely used in electric vehicles, electric In large and medium-sized electric equipment such as bicycles and electric tools, how to ensure the quality of lithium-ion batteries has become a hot spot of current research. [0003] A key step that affects the quality of lithium-ion batteries is the injection of electrolyte in lithium-ion batteries. At present, the electrolyte is usually injected into the cell, and then the cell injected with the electrolyte is left to stand naturally for more than 24h to 36h to meet the wetting ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M10/0525
CPCH01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 赵君义邹浒谢斌
Owner ZHUHAI COSMX BATTERY CO LTD
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