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Method for preparing, storing, using and repairing battery or capacitor under negative pressure

A battery and capacitor technology, applied in electrolytic capacitors, secondary battery manufacturing, secondary battery repair/maintenance, etc., can solve problems such as dangerous hidden performance, attenuation, battery performance deterioration, etc., to achieve stable electrode interface, improve performance and quality , the effect of avoiding contact

Inactive Publication Date: 2011-11-23
广州捷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

Disadvantages of the above process method: use cotton wool, rubber, tape and other materials to seal the liquid injection hole. During the formation process, it is difficult to completely isolate the substances inside the battery cavity from the air and other substances in the external environment of the battery. Air contact, the chemical reaction inside the battery cavity is not only the redox reaction between the ideal battery active materials, but also the accompanying electrode active materials, electrolytes, etc. and various components in the air. Side reactions are also going on, and various reactants and products will poison the battery and deteriorate the performance of the battery
In this way, for the transportation and storage of some batteries and capacitors, there are often hidden dangers and performance degradation problems

Method used

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  • Method for preparing, storing, using and repairing battery or capacitor under negative pressure
  • Method for preparing, storing, using and repairing battery or capacitor under negative pressure
  • Method for preparing, storing, using and repairing battery or capacitor under negative pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Preparation of a lithium-ion power battery applied to a new energy vehicle.

[0020] Embodiment 1 is achieved by adopting the following technical solutions: as figure 1 As shown, a three-channel 7 is installed in one place of the battery cavity 1, and a valve is arranged on each of the upper ends of the three channels 7. A part of one of the valves 8 is connected to a negative pressure pipe 9, and a vacuum gauge 11 is provided at an appropriate position of the negative pressure pipe 9; Connect one part of the battery cavity 1 to be injected with the electrolyte to the three-channel 7 of the external device, and after confirming that the entire system connection is airtight and leak-free, open the valve 8 and connect the negative pressure tube 9 to pump out the inside of the battery cavity 1 The gas inside is in a negative pressure state, open the valve 6 and connect the pipe 10, inject the electrolyte according to the set amount, and close the valve 8; in th...

Embodiment 2

[0022] Embodiment 2: The restoration of the lithium-ion power battery applied to new energy vehicles.

[0023] Embodiment 2 is realized by adopting the following technical scheme: the lithium-ion power battery manufactured in the above-mentioned embodiment 1 is put into use in a new energy vehicle, and the performance of individual batteries declines, deteriorates, and the like. We can remove the battery from the new energy vehicle. Such as figure 1 , Figure 4 As shown, according to the set operating procedures, the battery is connected to its external device, and its internal sampling, analysis, tracking research and repair are carried out to restore its good performance and put it into use again.

Embodiment 3

[0024] Embodiment 3: Preparation of batteries or capacitors.

[0025] Embodiment 3 is achieved by adopting the following technical solutions: as figure 2As shown, the channel 7 of its external connection device is multi-channel, and it is connected with the battery or capacitor cavity 1, and the other ports of the multi-channel 7 are respectively connected with a valve, and one valve 8 is connected with the negative pressure tube 9 connections, and the rest of the valves are each connected to a pipeline. In this way, the channel 7 is respectively connected to the pipelines of the vacuum pump, electrolyte, argon, additives, etc. through valves, and liquid and gas can be drawn from and injected into the battery or capacitor cavity 1 at will.

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PUM

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Abstract

The invention discloses a method for preparing, storing, using and repairing a battery or a capacitor under a negative pressure. The method is implemented by adopting the technical scheme that: external connection devices of the battery or the capacitor are arranged at one even more positions of a battery or capacitor cavity, and comprise pipelines, valves, meters and the like, and the valves are operated to fulfill the aims of preparing, storing, using and repairing the battery or the capacitor under the negative pressure; the battery or the capacitor and the external connection devices thereof are arranged in an environmental control system of the battery or the capacitor, and are operated to fulfill the aims of preparing, storing, using and repairing the battery or the capacitor under the negative pressure; and the battery or the capacitor is used when the cavity thereof is internally in a negative pressure state. The method is particularly suitable for injecting electrolyte in situ to activate the battery or the capacitor in occasions, such as a using occasion, except a manufacturing plant of the battery or the capacitor into which the electrolyte is not injected to avoid the performance degradation, explosion risks and inconvenience of the battery or the capacitor in transportation and storage.

Description

technical field [0001] The invention relates to the technical field of batteries or capacitors, in particular to a method for negative pressure preparation, storage, use and repair of batteries or capacitors. Background technique [0002] Human beings have entered a new era of low-carbon and environmental protection. The new energy industry is the core component of the low-carbon economy, and energy storage batteries and capacitors are important components of new energy devices. The performance and quality of batteries or capacitors such as electricity and power directly affect the performance of new energy devices such as electric vehicles, and one of the key factors determining the performance of batteries or capacitors is their preparation, storage, use and repair process. [0003] At present, the preparation process of the conventional hard shell lithium-ion battery: the pole piece and the separator are wound or laminated in a certain way, put into the cavity, inject the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M10/42H01G9/00
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 张力张柏秦
Owner 广州捷力新能源科技有限公司
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