Micro-miniature high-voltage double-electric-layer button type supercapacitor

Abstract

The utility model discloses a microminiature high-voltage double-electric-layer buckle type super capacitor, which comprises a super capacitor body, a shell, a cover plate pressing sheet, a positive electrode pin arranged above the super capacitor body and a negative electrode pin arranged below the super capacitor body, and reinforcing grooves are respectively arranged on the shell and the cover plate pressing sheet. The anti-seepage shell is arranged at the lower end of the cover plate pressing piece in an attached mode, and a positive electrode piece is arranged below the anti-seepage shell. According to the micro-miniature high-voltage double-electric-layer buckle-type super capacitor, the reinforcing grooves are formed in the shell and the cover plate pressing sheet respectively, so that the areas of the shell and the cover plate pressing sheet are increased, the shell and the cover plate pressing sheet can better bear pressure when being subjected to external pressure, the overall strength of the capacitor is improved, the service life of the capacitor is prolonged, and the service life of the capacitor is prolonged. And in combination with the arrangement of an anti-seepage shell and a sealing gasket, the electrolyte can be sealed, and leakage of the electrolyte in the long-term use process is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of supercapacitors, specifically a micro-miniature high-voltage double-layer button supercapacitor. Background Technology

[0002] Supercapacitors are a type of high-capacity capacitor that falls between electrolytic capacitors and rechargeable batteries. High-voltage double-layer button supercapacitors are a type of supercapacitor that falls between batteries and capacitors, and their extremely large capacity makes them fully usable as batteries.

[0003] As disclosed in announcement number CN220106273U, a button-type supercapacitor includes a matching positive and negative electrode shell, a positive electrode sheet, a negative electrode sheet, a positive conductive current collector, a negative conductive current collector, electrolytic paper, and a sealing ring. The positive and negative electrode sheets are respectively stamped onto the positive and negative conductive current collectors. Conductive adhesive is provided between one end of the positive and negative electrode sheets and one end of the positive and negative conductive current collectors. The inner sides of both the positive and negative electrode shells have slots that match the positive and negative conductive current collectors. The other ends of the positive and negative conductive current collectors are respectively inserted into the two slots and welded to the positive and negative electrode shells, so that the positive and negative electrode sheets are arranged coaxially. The conductive electrolytic paper is placed between the positive and negative electrode sheets, and the sealing ring is placed between the positive and negative electrode shells. This invention has a more stable internal structure, ensuring the coaxial arrangement of the positive and negative electrode sheets, reducing contact resistance, improving capacity utilization, and resulting in better product consistency.

[0004] However, existing technologies have problems such as insufficient sealing of the electrolyte, risk of electrolyte leakage during long-term use, low overall strength of the capacitor, and impact on actual service life. For example, the comparative patents listed above have this problem.

[0005] To address these issues, we propose a miniature, high-voltage double-layer button-type supercapacitor. Utility Model Content

[0006] The purpose of this invention is to provide a miniature high-voltage double-layer button supercapacitor to solve the problems mentioned in the background art, such as the need to improve the sealing effect of the electrolyte, the risk of electrolyte leakage during long-term use, and the low overall strength of the capacitor, which affects the actual service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a micro-miniature high-voltage double-layer button supercapacitor, comprising a supercapacitor body, a shell, a cover plate, a positive electrode pin disposed above the supercapacitor body, and a negative electrode pin disposed below the supercapacitor body;

[0008] The outer surface of the supercapacitor body is covered with an insulating film;

[0009] Also includes:

[0010] A reinforcing groove with a semi-circular cross-section is provided on the outer shell and the cover plate pressure plate respectively;

[0011] A leak-proof shell is provided to prevent leakage. The leak-proof shell is fitted to the lower end of the cover plate pressure plate, and a positive electrode plate is provided below the leak-proof shell.

[0012] As a preferred embodiment of this utility model, both the lower ends of the positive pin and the lower ends of the negative pin are provided with leads for connection.

[0013] The above technical solution includes connecting leads at the lower ends of both the positive and negative pins, which facilitates connection to external devices.

[0014] As a preferred embodiment of this utility model, a negative electrode sheet is provided at the bottom of the outer shell, and a glass fiber diaphragm is provided between the negative electrode sheet and the positive electrode sheet.

[0015] Using the above technical solution, a negative electrode sheet is provided at the bottom of the outer shell, and a glass fiber diaphragm is provided between the negative electrode sheet and the positive electrode sheet, so that the positive electrode sheet and the negative electrode sheet can be separated by the glass fiber diaphragm.

[0016] As a preferred embodiment of this utility model, an electrolyte is provided between the outer shell and the cover plate, and a sealing gasket is fitted to the outer side of the inner shell.

[0017] By adopting the above technical solution, an electrolyte is placed between the outer shell and the cover plate, and a sealing gasket is attached to the outer side of the inner shell, which can achieve a good sealing effect.

[0018] As a preferred embodiment of this utility model, a seepage-proof shell is provided above the sealing gasket, and the seepage-proof shell together with the sealing gasket prevents electrolyte leakage.

[0019] The above technical solution uses a seepage-proof shell above the sealing gasket, and the seepage-proof shell together with the sealing gasket prevents electrolyte leakage, thus preventing electrolyte leakage during long-term use.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This miniature high-voltage double-layer button supercapacitor can be connected to external devices through the setting of positive electrode pins, negative electrode pins and leads. The reinforcing grooves are respectively set on the outer shell and the cover plate, which increases the area of ​​the outer shell and the cover plate, thereby better withstanding the pressure under external pressure, thus improving the overall strength of the capacitor and extending the service life of the capacitor. Moreover, the combination of the anti-seepage shell and the sealing gasket can seal the electrolyte and effectively prevent electrolyte leakage during long-term use.

[0021] 1. It is equipped with a positive terminal, a negative terminal, and leads. Leads are provided at the lower ends of both the positive and negative terminals. The supercapacitor body can be connected to external devices through the configuration of the positive terminal, the negative terminal, and the leads.

[0022] 2. It is equipped with an outer shell, a cover plate, and a reinforcing groove. Both the outer shell and the cover plate are provided with a reinforcing groove with a semi-circular cross section. By setting the reinforcing groove, the area of ​​the outer shell and the cover plate is increased, the overall strength of the capacitor is improved, and its service life is extended.

[0023] 3. It is equipped with a seepage-proof shell and a sealing gasket. The seepage-proof shell is fitted to the lower end of the cover plate pressure plate, and a positive electrode plate is set below the seepage-proof shell. The seepage-proof shell and sealing gasket can effectively prevent electrolyte leakage during long-term use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0026] Figure 3 This is a frontal sectional view of the present invention.

[0027] In the diagram: 1. Supercapacitor body; 2. Shell; 3. Cover plate; 4. Positive electrode lead; 5. Negative electrode lead; 6. Lead wire; 7. Reinforcing groove; 8. Leak-proof shell; 9. Positive electrode plate; 10. Negative electrode plate; 11. Glass fiber diaphragm; 12. Electrolyte; 13. Sealing gasket; 14. Insulating film. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3 .

[0030] To address the existing problems of insufficient sealing effect of electrolyte 12, risk of leakage of electrolyte 12 during long-term use, low overall strength of capacitor, and impact on actual service life, this solution provides a miniature high-voltage double-layer button-type supercapacitor. The supercapacitor comprises a supercapacitor body 1, a shell 2, a cover plate 3, a positive electrode pin 4 located above the supercapacitor body 1, and a negative electrode pin 5 located below the supercapacitor body 1. The outer surface of the supercapacitor body 1 is covered with an insulating film 14. Reinforcing grooves 7 are respectively provided on the shell 2 and the cover plate 3. A seepage-proof shell 8 is attached to the lower end of the cover plate 3, and a positive electrode plate 9 is located below the seepage-proof shell 8.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the lower ends of the positive electrode pin 4 and the negative electrode pin 5 are both provided with lead wires 6 for connection. The arrangement of the positive electrode pin 4, the negative electrode pin 5 and the lead wires 6 facilitates the connection between the supercapacitor body 1 and external devices. The bottom of the outer shell 2 is provided with a negative electrode plate 10, and a glass fiber diaphragm 11 is provided between the negative electrode plate 10 and the positive electrode plate 9. The glass fiber diaphragm 11 can separate the positive electrode plate 9 and the negative electrode plate 10. Electrolyte 12 is provided between the outer shell 2 and the cover plate 3, and a sealing gasket 13 is attached to the outer side of the inner side of the outer shell 2. The provision of the anti-seepage shell 8 and the sealing gasket 13 can effectively prevent the electrolyte 12 from leaking during long-term use. Reinforcing grooves 7 are respectively provided on the outer shell 2 and the cover plate 3. The provision of reinforcing grooves 7 increases the actual area of ​​the outer shell 2 and the cover plate 3, thereby improving the overall strength of the supercapacitor body 1. It can withstand more pressure when subjected to external pressure, thereby extending the overall service life of the supercapacitor body 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A micro high-voltage double electric layer button type supercapacitor, comprising a supercapacitor body (1), a shell (2), a cover pressing sheet (3), a positive electrode pin (4) arranged above the supercapacitor body (1), and a negative electrode pin (5) arranged below the supercapacitor body (1); an outer surface of the supercapacitor body (1) is wrapped with an insulating film (14); characterized in that it further comprises: a reinforcing groove (7) in a semicircular cross section, arranged on the shell (2) and the cover pressing sheet (3) respectively; a leakage-proof shell (8) having a leakage-proof effect, arranged in close contact with the lower end of the cover pressing sheet (3), and a positive electrode sheet (9) arranged below the leakage-proof shell (8). wherein The lower end of the positive electrode pin (4) and the lower end of the negative electrode pin (5) are both provided with a lead wire (6) for connection. The bottom of the shell (2) is provided with a negative electrode sheet (10), and a glass fiber diaphragm (11) is arranged between the negative electrode sheet (10) and the positive electrode sheet (9). An electrolyte (12) is arranged between the shell (2) and the cover pressing sheet (3), and a sealing gasket (13) is arranged in close contact with the outside of the inside of the shell (2). The leakage-proof shell (8) is arranged above the sealing gasket (13), and the leakage-proof shell (8) together with the sealing gasket (13) prevents the electrolyte (12) from leaking.

2. The micro high-voltage electric double layer button supercapacitor according to claim 1, wherein: ​ 3. The micro high-voltage electric double layer button supercapacitor according to claim 1, wherein: ​ 4. The micro high-voltage electric double layer button supercapacitor according to claim 3, wherein: ​ 5. The micro high-voltage electric double layer button supercapacitor according to claim 4, wherein: ​

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