CN216054324U - Super capacitor and consumer - Google Patents
Super capacitor and consumer Download PDFInfo
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- CN216054324U CN216054324U CN202121337472.8U CN202121337472U CN216054324U CN 216054324 U CN216054324 U CN 216054324U CN 202121337472 U CN202121337472 U CN 202121337472U CN 216054324 U CN216054324 U CN 216054324U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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Abstract
The application provides a super capacitor, including casing, lid and electrode subassembly, electrode subassembly accept in the casing, the lid is sealed the casing. The two cover bodies are respectively arranged at two opposite ends of the shell along a first direction and are electrically connected with the electrode assembly, through holes are formed in the cover bodies, conductive terminals are arranged in the through holes, and the conductive terminals are in threaded connection with the through holes; one end of the conductive terminal is arranged on the outer side of the cover body, the other end of the conductive terminal is electrically connected with the positive electrode or the negative electrode of the electrode assembly, so that the positive electrode and the negative electrode of the super capacitor are respectively led out from the two ends, the electrode assembly is fixed by utilizing the cover body and the shell, and the conductive terminal is in threaded connection with the cover body, thereby being beneficial to improving the stability of the conductive terminal, ensuring the connection reliability of the conductive terminal and the electrode assembly, and solving the problem caused by poor vibration stress resistance of the traditional super capacitor. The application also provides an electric device with the super capacitor.
Description
Technical Field
The application relates to the field of electrochemical devices, in particular to a super capacitor and electric equipment with the super capacitor.
Background
The super capacitor is used as an energy storage element, is widely applied to the fields of energy, automobiles, medical treatment, health, electronics, military and the like, and has the characteristics of short charging time, long service life, good temperature characteristic, energy conservation and environmental protection. The traditional super capacitor mainly comprises a shell and an electrode assembly, wherein the positive electrode and the negative electrode of the super capacitor are arranged at the same end of the super capacitor to form a one-way leading-out structure. When the supercapacitor is welded on a circuit board and subjected to stress tests such as vibration, the electrode assembly inside the supercapacitor is prone to shaking, so that the riveting part of the electrode assembly and the shell in the supercapacitor is dragged, the connecting part is loosened, and finally the capacitor resistance is increased or even the circuit is opened to fail.
With the continuous expansion of the application field of the super capacitor, the super capacitor is required to be placed in a limited space more and more, which puts higher requirements on the volume and the shape of the super capacitor. The traditional super capacitor is limited by a one-way lead-out structure, is generally vertically installed and is not beneficial to the flat design of a final product.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present application provides a super capacitor, in which the two ends of the case are both provided with the cover bodies, the cover bodies are provided with the conductive terminals, and the two conductive terminals are respectively electrically connected with the positive electrode and the negative electrode of the electrode assembly, so that the positive electrode and the negative electrode of the super capacitor are respectively led out from the two ends, the electrode assembly is fixed by using the cover bodies and the case, and the conductive terminals are in threaded connection with the cover bodies, thereby facilitating the improvement of the stability of the conductive terminals, ensuring the connection reliability of the conductive terminals and the electrode assembly, and solving the problem caused by the poor vibration stress resistance of the conventional super capacitor. Compared with the traditional super capacitor, the super capacitor can be horizontally installed, can be used in a space with a small height, and is beneficial to application in different industries.
Embodiments themselves provide a supercapacitor comprising a case, a cap and an electrode assembly, the electrode assembly being housed within the case, the cap sealing the case. The two cover bodies are respectively arranged at two opposite ends of the shell along a first direction and are electrically connected with the electrode assembly, through holes are formed in the cover bodies, conductive terminals are arranged in the through holes, and the conductive terminals are in threaded connection with the through holes; one end of the conductive terminal is arranged on the outer side of the cover body, and the other end of the conductive terminal is electrically connected with the anode or the cathode of the electrode assembly.
In some embodiments, the conductive terminal includes a first portion, a second portion and a third portion, the first portion is disposed on the outer side of the cover, the second portion is screwed with the through hole, and the third portion is disposed in the case and electrically connected to the electrode assembly; the first part is detachably connected with one end of the second part, and the other end of the second part is fixedly connected with the third part.
In some embodiments, the diameter of the first portion is larger than that of the through hole, and one end of the first portion connected with the second portion abuts against the outer side wall of the cover body.
In some embodiments, in an extending direction from the second portion to the third portion, a diameter of the third portion gradually decreases, and an end of the third portion connected to the second portion abuts against an inner side wall of the cover body.
In some embodiments, the cover includes an insulating layer and a sealing layer stacked in the first direction, and the via hole penetrates the insulating layer and the sealing layer.
In some embodiments, the open end of the casing is provided with a connecting part, and the connecting part wraps the side edge of the cover body and is connected with the sealing layer in a sealing manner.
In some embodiments, the electrode assembly includes a first electrode terminal, a second electrode terminal, and an electrode core, wherein the first electrode terminal and the second electrode terminal have opposite polarities and are respectively disposed at two ends of the electrode core along a first direction, and the first electrode terminal and the second electrode terminal are respectively electrically connected to one of the conductive terminals.
In some embodiments, the housing further includes a first recess and a second recess spaced apart from each other along the first direction, and the electrode core is disposed between the first recess and the second recess.
In some embodiments, the first electrode terminal comprises a plurality of first electrode units arranged in a stack, each of the first electrode units electrically connecting the positive pole piece of the electrode core; the second electrode terminal comprises a plurality of second electrode units which are stacked, and each second electrode unit is electrically connected with the negative pole piece of the electrode core body; the plurality of first electrode units are arranged at one opening end of the shell in a bending mode, and the plurality of second electrode units are arranged at the other opening end of the shell in a bending mode; the two conductive terminals are respectively and electrically connected with the first electrode unit and the second electrode unit.
The embodiment of the application also provides electric equipment, the electric equipment comprises a circuit module and the super capacitor, and the circuit module is electrically connected with the super capacitor.
According to the super capacitor, the cover bodies are arranged at the two ends of the shell, the conductive terminals are arranged on the cover bodies and are respectively electrically connected with the positive electrode and the negative electrode of the electrode assembly, so that the positive electrode and the negative electrode of the super capacitor are respectively led out from the two ends, the electrode assembly is fixed by utilizing the cover bodies and the shell, and the conductive terminals are in threaded connection with the cover bodies, so that the stability of the conductive terminals is favorably improved, the connection reliability of the conductive terminals and the electrode assembly is ensured, and the problem caused by poor vibration stress resistance of the traditional super capacitor is solved. Compared with the traditional super capacitor, the super capacitor can be horizontally installed, can be used in a space with a small height, and is beneficial to application in different industries.
Drawings
Fig. 1 is a schematic structural diagram of a supercapacitor in an embodiment.
Fig. 2 is a schematic structural diagram of a cover in the supercapacitor shown in fig. 1.
Fig. 3 is a schematic structural view of an electrode assembly in the supercapacitor shown in fig. 1.
Fig. 4 is a schematic view illustrating the structure of the electrode assembly of fig. 3 in another direction.
Fig. 5 is a schematic diagram of an embodiment of a powered device.
Description of the main element symbols:
the specific implementation mode is as follows:
the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The application provides a super capacitor, including casing, lid and electrode subassembly, electrode subassembly accept in the casing, the lid is sealed the casing. The two cover bodies are respectively arranged at two opposite ends of the shell along a first direction and are electrically connected with the electrode assembly, through holes are formed in the cover bodies, conductive terminals are arranged in the through holes, and the conductive terminals are in threaded connection with the through holes; one end of the conductive terminal is arranged on the outer side of the cover body, and the other end of the conductive terminal is electrically connected with the anode or the cathode of the electrode assembly.
The cover bodies are arranged at the two ends of the shell, the conductive terminals are arranged on the cover bodies and are respectively and electrically connected with the positive electrode and the negative electrode of the electrode assembly, so that the positive electrode and the negative electrode of the supercapacitor are respectively led out from the two ends, the electrode assembly is fixed by utilizing the cover bodies and the shell, and the conductive terminals are in threaded connection with the cover bodies, thereby being beneficial to improving the stability of the conductive terminals, ensuring the connection reliability of the conductive terminals and the electrode assembly, and solving the problem caused by poor vibration stress resistance of the traditional supercapacitor. Compared with the traditional super capacitor, the super capacitor can be horizontally installed, can be used in a space with a small height, and is beneficial to application in different industries.
Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 and 2, in one embodiment, a supercapacitor 100 includes a case 10, a cap 20, and an electrode assembly 30. The electrode assembly 30 is disposed in the case 10, and the cap 20 seals the case 10. In the embodiment of the present application, two covers 20 are respectively disposed at opposite ends of the case 10 in the first direction and electrically connected to the electrode assembly 30. The first direction is an axial direction of the supercapacitor 100, i.e., the direction indicated by the arrow a in fig. 1.
Specifically, the housing 10 is a hollow structure with two open ends, and the two cover bodies 20 are respectively disposed at the two open ends of the housing 10 and are fixedly connected to the housing 10. The cover 20 is provided with a through hole 21, and in the embodiment of the present application, the through hole 21 is located at a substantially central position of the cover 20. The through hole 21 is internally provided with a conductive terminal 22, in the embodiment of the application, the conductive terminal 22 is in threaded connection with the through hole 21 so as to improve the stability of the conductive terminal 22 and reduce the problem that the conductive terminal 22 shakes or falls off accidentally. One end of the conductive terminal 22 is disposed at the outer side of the cover 20, and the other end of the conductive terminal 22 is electrically connected to the positive electrode or the negative electrode of the electrode assembly 30.
Specifically, the conductive terminal 22 includes a first portion 221, a second portion 222, and a third portion 223, the first portion 221 is disposed on the outer side of the cover 20, the second portion 222 is screwed with the through hole 21, and the third portion 223 is disposed in the case 10 and electrically connected to the electrode assembly 30. In the embodiment of the present application, the first portion 221 is detachably connected to one end of the second portion 222 by a method including, but not limited to, a threaded connection. The diameter of the first portion 221 is larger than that of the through hole 21, and one end of the first portion 221 connected to the second portion 222 abuts against the outer side wall of the cover body 20. The other end of the second portion 222 is fixedly connected to the third portion 223, and one end of the third portion 223 connected to the second portion 222 abuts against the inner side wall of the cover 20. In the embodiment of the present application, the third portion 223 has a substantially conical structure, and the diameter of the third portion 223 gradually decreases from the second portion 222 to the third portion 223. The third portion 223 is used to electrically connect the positive electrode or the negative electrode of the electrode assembly 30.
Further, the cover body 20 includes an insulating layer 23 and a sealing layer 24, the insulating layer 23 and the sealing layer 24 are stacked in the first direction, and the through hole 21 penetrates the insulating layer 23 and the sealing layer 24. The insulating layer 23 comprises a non-conductive material such as phenolic resin, and the sealing layer 24 comprises a flexible material such as butyl rubber. The insulating layer 23 is provided in the housing 10, and the sealing layer 24 exposes the housing 10 from an opening end portion of the housing 10. The opening end of the casing 10 is provided with a connecting portion 11, and the connecting portion 11 covers the side edge of the cover 20 and is connected with the sealing layer 24 in a sealing manner, so as to realize the sealing connection between the cover 20 and the casing 10. The sealing connection means includes, but is not limited to, riveting, bonding, welding, etc.
With reference to fig. 3 and 4, the electrode assembly 30 includes a first electrode terminal 31, a second electrode terminal 32 and an electrode core 33, wherein the first electrode terminal 31 and the second electrode terminal 32 have opposite polarities and are respectively disposed at two ends of the electrode core 33 along a first direction. The first electrode terminal 31 and the second electrode terminal 32 are electrically connected to one of the conductive terminals 22, respectively.
The first electrode terminal 31 includes a plurality of first electrode units 311 stacked one on another, and each of the first electrode units 311 is electrically connected to the positive electrode tab of the electrode core 33. The second electrode terminal 32 includes a plurality of second electrode units 321 stacked, and each of the second electrode units 321 is electrically connected to the negative electrode tab of the electrode core 33. When the electrode assembly 30 is disposed in the case 10, the first electrode units 311 are bent at one opening end of the case 10, and the second electrode units 321 are bent at the other opening end of the case 10. The third portions 223 of the two conductive terminals 22 are electrically connected to the first electrode unit 311 and the second electrode unit 321, respectively. The connection means includes, but is not limited to, riveting, welding, etc. When the conductive terminal 22 is riveted to the first electrode terminal 31 or the second electrode terminal 32, the third portion 223 of the tapered structure is advantageous to improve the connection reliability between the conductive terminal 22 and the electrode terminal.
Further, referring to fig. 1 again, along the first direction, a first concave portion 12 and a second concave portion 13 are further disposed on the case 10 at an interval, and the electrode core 33 of the electrode assembly 30 is disposed between the first concave portion 12 and the second concave portion 13. The first recess 12 and the second recess 13 serve to position the electrode assembly 30, reducing wobbling of the electrode assembly 30 within the case 10.
Referring to fig. 5, an electric device 200 is further provided in an embodiment of the present application, where the electric device 200 includes a circuit module 201 and the supercapacitor 100 according to the above embodiment, and the circuit module 201 is electrically connected to the supercapacitor 100.
According to the super capacitor 100 provided by the application, the cover bodies 20 are arranged at the two ends of the shell 10, the conductive terminals 22 in threaded connection with the cover bodies 20 are arranged on the cover bodies 20, and the two conductive terminals 22 are respectively riveted with the positive and negative terminals of the electrode assembly 30, so that the positive and negative electrodes of the super capacitor 100 are axially led out. The super capacitor 100 adopts an axial lead-out mode, and the cover 20 and the shell 10 are utilized to fix the electrode assembly 30, so that the problem caused by poor vibration stress resistance of the traditional super capacitor is solved. Compared with the traditional super capacitor, the super capacitor 100 can be horizontally installed, can be used in a space with a small height, and is beneficial to application in different industries.
Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.
Claims (10)
1. A super capacitor comprises a shell, cover bodies and an electrode assembly, wherein the electrode assembly is accommodated in the shell, and the cover bodies seal the shell; one end of the conductive terminal is arranged on the outer side of the cover body, and the other end of the conductive terminal is electrically connected with the anode or the cathode of the electrode assembly.
2. The supercapacitor of claim 1, wherein the conductive terminal includes a first portion disposed on an outer side of the cap, a second portion threadedly coupled to the through-hole, and a third portion disposed in the case and electrically coupled to the electrode assembly; the first part is detachably connected with one end of the second part, and the other end of the second part is fixedly connected with the third part.
3. The supercapacitor of claim 2, wherein the diameter of the first portion is larger than the diameter of the through hole, and one end of the first portion connected to the second portion abuts against the outer side wall of the cover body.
4. The supercapacitor of claim 2, wherein the diameter of the third portion decreases in the direction of extension from the second portion to the third portion, and the end of the third portion connected to the second portion abuts against the inner side wall of the cover.
5. The supercapacitor of claim 2, wherein the cover includes an insulating layer and a sealing layer, the insulating layer and the sealing layer being stacked in the first direction, the via hole penetrating the insulating layer and the sealing layer.
6. The supercapacitor of claim 5, wherein the open end of the casing is provided with a connecting portion which wraps around the side of the cover and is in sealed connection with the sealing layer.
7. The supercapacitor according to claim 1, wherein the electrode assembly includes a first electrode terminal, a second electrode terminal and an electrode core, the first electrode terminal and the second electrode terminal have opposite polarities and are respectively disposed at two ends of the electrode core along a first direction, and the first electrode terminal and the second electrode terminal are respectively electrically connected to one of the conductive terminals.
8. The ultracapacitor of claim 7, wherein a first recess and a second recess are further spaced on the housing along the first direction, and the electrode core is disposed between the first recess and the second recess.
9. The supercapacitor of claim 7, wherein the first electrode terminal comprises a plurality of first electrode units arranged in a stack, each of the first electrode units electrically connecting a positive pole piece of the electrode core; the second electrode terminal comprises a plurality of second electrode units which are stacked, and each second electrode unit is electrically connected with the negative pole piece of the electrode core body; the plurality of first electrode units are arranged at one opening end of the shell in a bending mode, and the plurality of second electrode units are arranged at the other opening end of the shell in a bending mode; the two conductive terminals are respectively and electrically connected with the first electrode unit and the second electrode unit.
10. An electrical consumer, characterized in that the electrical consumer comprises a circuit module and a supercapacitor according to any one of claims 1 to 9, the circuit module being electrically connected to the supercapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121337472.8U CN216054324U (en) | 2021-06-16 | 2021-06-16 | Super capacitor and consumer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121337472.8U CN216054324U (en) | 2021-06-16 | 2021-06-16 | Super capacitor and consumer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216054324U true CN216054324U (en) | 2022-03-15 |
Family
ID=80553978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121337472.8U Active CN216054324U (en) | 2021-06-16 | 2021-06-16 | Super capacitor and consumer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216054324U (en) |
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2021
- 2021-06-16 CN CN202121337472.8U patent/CN216054324U/en active Active
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