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Insulating diaphragm high-voltage supercapacitor

A technology for supercapacitors and diaphragms, applied in electrolytic capacitors, hybrid capacitor separators, hybrid capacitor electrodes, etc., can solve the problems of low energy density of supercapacitors and restrictions on the application of supercapacitors

Pending Publication Date: 2022-06-17
郑 明奎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, supercapacitors also have short boards, that is, the energy density of a single cell is much lower than that of batteries, both within 30wh / kg, while the energy density of lithium batteries is between 200wh / kg and 350k / kg, and the energy density of supercapacitors is too low , restricting the application of supercapacitors in a wider range

Method used

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  • Insulating diaphragm high-voltage supercapacitor
  • Insulating diaphragm high-voltage supercapacitor
  • Insulating diaphragm high-voltage supercapacitor

Examples

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Embodiment Construction

[0023] One of the structures of the present invention is composed of a cylindrical shell, two positive and negative electrode sheets, two composite insulating high dielectric constant dielectric films, an electrolyte solution and four sheets of electrolytic paper, and is characterized by:

[0024] The electrode sheet and the dielectric film are stacked in sequence, and the electrode sheet and the dielectric film are separated by electrolytic paper (the role of the electrolytic paper is to absorb and store the electrolyte solution), and rolled into a cylindrical shape; the two electrode sheets are led out by leads, or the electrode sheet Extend it out to make a full pole ear; inject or immerse it in an electrolyte solution, and after absorption, seal both ends with insulating materials such as rubber or epoxy resin to maintain the insulation between the two poles; then put it into the shell, and package it ( Figure 5 ).

[0025] Another structure of the present invention is co...

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Abstract

The invention relates to an insulating diaphragm high-voltage supercapacitor, which comprises a positive electrode plate, a negative electrode plate, an insulating diaphragm, an electrolyte solution and electrolytic paper (the electrolytic paper separates the electrode plate and the insulating diaphragm and absorbs and stores the electrolyte solution), and has the following advantages: 1, the insulating diaphragm high-voltage supercapacitor is not limited by the decomposition voltage of the electrolyte solution, and the working voltage can be greatly improved; and secondly, the dielectric strength of the insulating diaphragm is high, so that the leakage current is reduced, and the self-discharge is small. And thirdly, the device is low in cost, environment-friendly and pollution-free, and does not explode or fire during impact.

Description

technical field [0001] The invention belongs to the field of energy storage capacitors, in particular to an insulating diaphragm high-voltage supercapacitor. Background technique [0002] As a new type of energy storage device, supercapacitors have the advantages of both capacitors and batteries, with high power density (up to 1000w / kg, equivalent to 5-10 times that of batteries) and long cycle life (cycle charge and discharge of 500,000- 1 million times), fast charging and discharging speed, wide operating temperature limit, green environmental protection and other advantages, it has broad application prospects in new energy vehicles, wind and photovoltaic solar energy storage, medical and health, electronics, military and other fields. [0003] However, supercapacitors also have shortcomings, that is, the energy density of single cells is much lower than that of batteries, which are all within 30wh / kg, while the energy density of lithium batteries is between 200wh / kg and 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/52H01G11/22H01G11/84
CPCH01G11/52H01G11/22H01G11/84
Inventor 郑明奎
Owner 郑 明奎