CN216054323U

CN216054323U - Button ultracapacitor system

Info

Publication number: CN216054323U
Application number: CN202121927591.9U
Authority: CN
Inventors: 尹志华; 李良; 尹超; 王永祥
Original assignee: Shenzhen Jianghao Electron Co ltd
Current assignee: Shenzhen Jianghao Electron Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-15
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a button super capacitor, which comprises a plastic shell, one or more capacitor monomers coated in the plastic shell, and capacitor pins led out of the capacitor monomers; the capacitor monomer comprises a cell main body and a packaging metal shell; the battery cell main body comprises a battery plate, the inner surface of the packaging metal shell is provided with a cavity with an irregular geometric shape, and one side surface of the battery plate is bonded with the inner surface of the packaging metal shell through conductive gel. The utility model can avoid the separation of the electrode plate and the metal shell, thereby forming high-reliability low-impedance contact, ensuring the consistency of low impedance and long service life, and avoiding the risks of capacity attenuation and gradual increase of impedance.

Description

Button ultracapacitor system

Technical Field

The utility model belongs to the technical field of capacitors, and particularly relates to a button super capacitor.

Background

The super capacitor is used as an energy storage element, is widely applied to backup power supplies of instruments and clocks, and has the characteristics of high charging and discharging speed, long cycle service life, wide service temperature range, energy conservation and environmental protection. Aiming at different application scenes, a plurality of external structures need to be packaged to meet the requirement, and the button-type super capacitor can be used for replacing a silver-oxygen button battery and replacing a dry battery after the super capacitors are connected in series, and is widely applied to the fields of automobiles, wind power generation, urban light rails, subways, solar energy, intelligent three-meters, tax-control cash registers, electric tools, UPS (uninterrupted power supply), heavy industrial equipment and the like.

When the button type super capacitor is assembled, after the positive and negative electrode shells are bonded with the pole pieces, high-temperature heat treatment is needed to ensure the electric conductivity of the super capacitor; the assembly process in the prior art is complicated, and the conductivity is greatly influenced. The severer will affect or shorten the useful life of the capacitor, and the quality of the end use product.

The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a button supercapacitor to solve at least one of the above problems of the related art.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

a button super capacitor comprises a plastic shell, one or more capacitor units coated in the plastic shell, and capacitor pins led out of the capacitor units; the capacitor monomer comprises a cell main body and a packaging metal shell; the battery cell main body comprises a battery plate, the inner surface of the packaging metal shell is provided with a cavity with an irregular geometric shape, and one side surface of the battery plate is bonded with the inner surface of the packaging metal shell through conductive gel.

In some embodiments, the cell body comprises two electrode plates mounted together in a laminate, with a porous separator disposed between the two electrode plates for separation.

In some embodiments, the encapsulated metal housing is a chemical grade stainless steel spun material.

In some embodiments, the conductive gel is a polymer gel formed by stirring and dispersing high-purity silver paste, graphite and graphene according to a certain proportion.

In some embodiments, the plastic housing is made of PC, PVC, or PET plastic.

In some embodiments, the irregular-geometry hollow cavity is an open cavity with a certain depth, and the opening shape of the open cavity is a non-specific regular geometry.

In some embodiments, the electrode plate is an activated carbon activated electrode.

In some embodiments, the capacitor pins are parallel to two end faces of the button supercapacitor.

In some embodiments, the capacitor pins are perpendicular to both end faces of the button ultracapacitor.

The technical scheme of the utility model has the beneficial effects that:

compared with the prior art, the button supercapacitor can avoid the separation of the electrode plate and the metal shell, so that high-reliability low-impedance contact is formed, the consistency of low impedance and long service life of the button supercapacitor is ensured, and the risks of capacity attenuation and gradual increase of impedance are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a button supercapacitor according to one embodiment of the present invention;

fig. 2 is a schematic diagram of the electrode plate and the metal shell of the button supercapacitor according to the embodiment of the utility model.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer and more obvious, so that those skilled in the art can better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixation or for circuit connection.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way limiting of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, "plurality" means two or more, and the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and fig. 2, a button super capacitor 100 according to an embodiment of the present invention includes a plastic housing 101, one or more capacitor units 200 wrapped in the plastic housing 101, and a capacitor pin 102 led out from the capacitor unit 200; the capacitor unit 200 includes a cell main body and a packaging metal casing 201; the battery cell main body comprises an electrode plate 202, a cavity 203 with an irregular geometric shape is formed in the inner surface of the packaging metal shell 201, and one side surface of the electrode plate 202 is bonded with the inner surface of the packaging metal shell 201 through conductive gel.

Specifically, the cell body comprises two electrode plates 202 mounted together in a laminated manner, and a porous diaphragm is arranged between the two electrode plates 202 for isolation. In some embodiments, electrode plate 202 is an activated carbon activated electrode.

The packaging metal shell 201 is made of chemical-grade stainless steel spinning materials, and the electrode plate 202 is packaged by stainless steel spinning. The conductive gel is a polymer gel prepared by stirring and dispersing high-purity silver paste, graphite and graphene according to a certain proportion.

In some embodiments, the plastic housing 101 is made of PC, PVC, or PET plastic.

The cavity 203 with irregular geometry on the inner surface of the packaging metal shell 201 is an opening cavity with a certain depth, and the shape of the opening cavity is a geometric shape without specific rules. By providing the inner surface of the encapsulating metal shell 201 with a cavity 203 of irregular geometry, the surface area enlarging process is realized on the smooth metal surface, so that the inner surface of the metal shell 201 is converted into a 3D point structure with an opening hole from the original trend plane, the area is enlarged, after the area of the metal surface is enlarged, when the conductive gel is bonded with the electrode plate, the conductive gel can form large-area contact with the opening hole on the inner surface of the metal shell 201, form a semi-solid tentacle to contact with the metal shell to conduct electricity so as to lead out capacitance, the tentacle has strong adaptability to high and low temperatures, does not change contact resistance along with the change of temperature and time, can avoid the separation of the electrode plate 202 from the metal shell 201, therefore, high-reliability low-impedance contact is formed, the consistency of low impedance and long service life of the super capacitor is ensured, and the risk of capacity attenuation and gradual increase of impedance is avoided.

In some embodiments, the open hole is formed by laser burning; specifically, the inner surface of the encapsulated metal shell 201 is firstly subjected to basic degreasing treatment, the treated shells are subjected to disc arrangement, scanning and burning are carried out on the inner surface of the metal shell through high-power laser equipment, a rough surface dot matrix is formed, an opening hole with a certain depth is formed after single points in the dot matrix are burned, the shape of the opening hole has no specific geometric shape, and an irregular opening is naturally formed mainly due to laser burning.

In some embodiments, the capacitor pins 102 are parallel to two end faces of the button capacitor, in which case the capacitor is mounted in a horizontal manner; in some embodiments, the capacitor pins 102 are perpendicular to both end faces of the button capacitor, in which case the capacitor is mounted in a vertical manner. It should be noted that the capacitor pins may be arranged in other manners, which are not particularly limited in the embodiments of the present invention, and any manner may be adopted without departing from the spirit of the present invention, so as to fall within the protection scope of the present invention.

It is to be understood that the foregoing is a more detailed description of the utility model as it relates to specific/preferred embodiments and that no limitation to the specific embodiments is intended as being implied by the limitation presented herein. It will be apparent to those skilled in the art that various substitutions and modifications can be made to the described embodiments without departing from the spirit of the utility model, and these substitutions and modifications should be considered to fall within the scope of the present patent. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the utility model as defined by the appended claims.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims

1. The utility model provides a button ultracapacitor system which characterized in that: the capacitor comprises a plastic shell, one or more capacitor units coated in the plastic shell, and capacitor pins led out of the capacitor units; the capacitor monomer comprises a cell main body and a packaging metal shell; the battery cell main body comprises a battery plate, the inner surface of the packaging metal shell is provided with a cavity with an irregular geometric shape, and one side surface of the battery plate is bonded with the inner surface of the packaging metal shell through conductive gel.

2. A button supercapacitor as claimed in claim 1, wherein: the battery core main body comprises two electrode plates which are arranged together in a lamination mode, and a porous diaphragm is arranged between the two electrode plates for isolation.

3. A button supercapacitor as claimed in claim 1, wherein: the packaging metal shell is made of chemical-grade stainless steel spinning materials.

4. A button supercapacitor as claimed in claim 1, wherein: the plastic shell is made of PC, PVC or PET plastic.

5. A button supercapacitor as claimed in claim 1, wherein: the cavity with the irregular geometric shape is an opening cavity with a certain depth, and the opening of the opening cavity is in a geometric shape without specific rules.

6. A button supercapacitor as claimed in claim 2, wherein: the electrode plate is an activated carbon activated electrode.

7. A button supercapacitor according to any one of claims 1 to 6, wherein: the capacitor pins are parallel to two end faces of the button super capacitor.

8. A button supercapacitor according to any one of claims 1 to 6, wherein: the capacitor pins are perpendicular to two end faces of the button super capacitor.