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Super capacitor liquid injection method and liquid injection device

A supercapacitor and liquid injection device technology, which is applied in the field of capacitor manufacturing, can solve the problems of inaccurate control, electrolyte cannot fully fill the liquid injection volume, etc., to improve the efficiency of liquid injection, reduce the auxiliary time of loading and unloading materials, and have a simple and practical structure Effect

Active Publication Date: 2014-08-27
NINGBO CRRC NEW ENERGY TECH CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the current supercapacitor liquid injection method that the electrolyte cannot be fully filled into the micropores of activated carbon and the control of the liquid injection volume is inaccurate only by gravity, and to provide an electrolyte that can fully fill Supercapacitor liquid injection method and liquid injection device into activated carbon micropores and accurate liquid injection volume control

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  • Super capacitor liquid injection method and liquid injection device

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] as attached figure 1 , attached figure 2 , attached image 3 Shown: a supercapacitor liquid injection method, including the following steps: (1) connect the vacuum on-off valve 1, through the liquid injection hole 31 of the supercapacitor 3, use the vacuum pump 2 to extract the air in the supercapacitor 3 for the first time to achieve a vacuum 0.7pa, and keep it for 12 minutes; (2) while vacuuming for the first time, use diaphragm pump 55 to pump the electrolyte that accounts for 85% of the total injection volume from electrolyte tank 8 into liquid storage tank 54; (3 ) After the first vacuuming is completed, disconnect the vacuum on-off valve 1 and connect the infusion on-off valve 53, so that the electrolyte in the liquid storage tank 54 is sucked into the supercapacitor 3 under negative pressure and soaked for 4 minutes, so that The electrolyte is fully f...

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Abstract

The invention relates to the field of capacitor manufacture, and aims to provide a super capacitor liquid injection method and a liquid injection device. The super capacitor liquid injection method comprises the following steps: (1) air in a super capacitor is pumped out for the first time to enable the vacuum degree to be lower than 1pa, and the state is kept for 5-20 minutes; (2) electrolyte accounting for 75-92% of the total liquid injection volume is pumped into a liquid storage tank by a diaphragm pump; (3) the electrolyte in the liquid storage tank is sucked into the super capacitor and soaked for 2-5 minutes to enable the electrolyte to fully fill activated carbon pores; (4) air in the super capacitor is pumped out for the second time to enable the vacuum degree to reach 10-30pa, and the state is kept for 1-5 minutes; (5) electrolyte accounting for 8-25% of the total liquid injection volume is pumped into the liquid storage tank; and (6) the electrolyte in the liquid storage tank is sucked into the super capacitor under negative pressure. By adopting the super capacitor liquid injection method, electrolyte is enabled to fully fill activated carbon pores, and liquid injection volume control is accurate.

Description

technical field [0001] The invention relates to the field of capacitor manufacturing, in particular to a liquid injection method and a liquid injection device for a supercapacitor. Background technique [0002] Supercapacitors are also called electric double layer capacitors. They have the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection. learn. Supercapacitors include a positive electrode, a negative electrode, and a diaphragm between the two electrodes. The electrolyte fills the gap between the two electrodes and the diaphragm; the electrodes are usually porous activated carbon materials made of high specific surface area. The electrolytic solution often uses organic electrolytes such as carbonic acid; the traditional supercapacitor liquid injection method is to use a liquid container located above the supercapacitor and equipped with a quick-connect valve connected to the supercapacito...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/84
CPCY02E60/13
Inventor 阮殿波陈照荣傅冠生张洪权陈照平吴震寰
Owner NINGBO CRRC NEW ENERGY TECH CO LTD
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