CN207425642U - Hermetically sealed ultracapacitor - Google Patents
Hermetically sealed ultracapacitor Download PDFInfo
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- CN207425642U CN207425642U CN201721553800.1U CN201721553800U CN207425642U CN 207425642 U CN207425642 U CN 207425642U CN 201721553800 U CN201721553800 U CN 201721553800U CN 207425642 U CN207425642 U CN 207425642U
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- outer cover
- ring
- hermetically sealed
- cathode
- negative terminal
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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 utility model discloses a kind of hermetically sealed ultracapacitor, including：Anode outer cover, cathode outer cover, shell, capacitor battery core, negative current collector, negative terminal and sealing ring, anode outer cover and cathode outer cover are connected to shell both ends, capacitor battery core and negative current collector and set inside the housing, capacitor battery core one end is connected with anode outer cover, negative current collector is connected to the other end of capacitor battery core, negative terminal portion setting is connected inside the housing with negative current collector, is partially passed through cathode outer cover and is arranged on housing exterior；Negative terminal, which is set between part and cathode outer cover inside the housing, has seal clearance；Sealing ring includes ceramic ring and is arranged on the metal layer of ceramic ring surface, and ceramic ring is arranged in seal clearance, and by metal layer respectively with cathode outer cover and negative terminal soldering connection.The hermetically sealed ultracapacitor has the advantages that sealing intensity height, service life length, high degree of automation, production efficiency are high.
Description
Technical field
The utility model is related to electrochemical energy storage component field more particularly to a kind of hermetically sealed ultracapacitors.
Background technology
Ultracapacitor is as a kind of efficient energy storage component, with charge/discharge rates are fast, power density is big, the cycle longevity
The number of advantages such as long, environmentally protective are ordered, have been obtained extensively in new-energy automobile, track traffic, aerospace, industrial automation
General application.Generally, battery core one end (positive or negative pole) of ultracapacitor is connected with shell, the other end passes through rubber seal
Circle is sealed off with casing insulation.However, the heat-resisting ability of rubber seal is limited (generally no more than 260 DEG C), it is long-term high
Easy aging causes sealing performance to substantially reduce under warm load, the serious service life for limiting ultracapacitor；Also, to prevent
The leakage probability during increase use is deformed in assembling process for rubber seal, it is necessary to artificial hand assembled rubber seal
And use shell be flared mode with prevent sealing ring assembling displacement, assembly work hand labor intensity is big, and efficiency of assembling is low, shadow
Ring the production efficiency of ultracapacitor.Therefore, conventional Super capacitor there are poor sealing performance, service life is short and production efficiency
The technical issues of low.
Utility model content
It, can be to overcome conventional Super capacitor the purpose of this utility model is that propose a kind of hermetically sealed ultracapacitor
Existing poor sealing performance, service life is short and the technical issues of low production efficiency.
For this purpose, the utility model uses following technical scheme：
A kind of hermetically sealed ultracapacitor, including：Anode outer cover, cathode outer cover, shell, capacitor battery core, negative pole currect collecting
Body, negative terminal and sealing ring, anode outer cover and cathode outer cover are connected to shell both ends, capacitor battery core and negative pole currect collecting
Body is set inside the housing, and capacitor battery core one end is connected with anode outer cover, and negative current collector is connected to the another of capacitor battery core
One end, negative terminal portion setting are connected with negative current collector, partially pass through cathode outer cover and be arranged on outside shell inside the housing
Portion；Negative terminal, which is set between part and cathode outer cover inside the housing, has a seal clearance；Sealing ring includes ceramic ring
With the metal layer for being arranged on ceramic ring surface, ceramic ring is arranged in seal clearance, and by metal layer respectively with cathode outer cover
With negative terminal soldering connection.
In one of the embodiments, metal layer includes metal layer and the coat of metal, and metal layer is arranged on ceramic ring
Between the coat of metal.
In one of the embodiments, metal layer is molybdenum manganese powder layer.
In one of the embodiments, the coat of metal is nickel coating.
In one of the embodiments, insulation filling ring is further included, negative terminal passes through part and the cathode of cathode outer cover
There is a clearance for insulation between outer cover, insulation filling ring is arranged in clearance for insulation, and respectively with cathode outer cover and negative terminal
Abut connection.
In one of the embodiments, insulation filling ring is ceramic filler ring, rubber filling ring, silicone filler ring or plastics
Ring type filling.
In one of the embodiments, sealing nail is further included, is covered outside cathode and offers liquid injection hole, sealing nail insertion fluid injection
Hole is welded to connect with cathode outer cover.
In one of the embodiments, burst disk is further included, is covered outside anode and offers gas vent, burst disk is arranged on row
It is connected in stomata with anode outer cover.
In one of the embodiments, the thickness of burst disk is 0.1mm-0.3mm, and the pressure adjustable range of burst disk is
0.6MPa-1.0MPa。
In one of the embodiments, burst disk is made of PP films.
Above-mentioned hermetically sealed ultracapacitor, by including ceramic ring and metal layer between negative terminal and cathode outer cover
Seal ring seal, metal layer are arranged on ceramic ring surface, ceramic ring by metal layer respectively with negative terminal and cathode outer cover pricker
Weldering connection realizes the cathode of capacitor battery core and shell is hermetically sealed is dielectrically separated from, and sealing intensity height can effectively ensure that airtight
Property, reduce leakage probability.Also, ceramic ring performance is stablized, and service life is long, and can greatly prolong ultracapacitor uses the longevity
Life.Meanwhile sealing ring and negative terminal and the equal soldering connection of cathode outer cover, sealing ring assembling can be achieved automatic welding, realize
The automation mechanized operation of the entire production process of ultracapacitor, greatlys save hand labor intensity, improves ultracapacitor life
Produce efficiency.Therefore, compared with conventional Super capacitor, above-mentioned hermetically sealed ultracapacitor has sealing intensity height, uses the longevity
Order the high advantageous effect of length, high degree of automation, production efficiency.
Description of the drawings
Fig. 1 is the structure diagram of hermetically sealed ultracapacitor in one embodiment；
Fig. 2 is the structure diagram of shell in one embodiment；
Fig. 3 is the structure diagram of sealing ring in one embodiment；
Fig. 4 is the A-A structure sectional views of sealing ring shown in Fig. 3；
Fig. 5 is the structure diagram that cathode outer cover is connected with negative terminal in one embodiment；
Fig. 6 is the structure diagram of anode outer cover in one embodiment.
In figure：10- anodes outer cover, 20- cathode outer cover, 30- shells, 40- capacitors battery core, 50- negative current collectors, 60-
Negative terminal, 70- sealing rings, 80- insulation fillings ring, 90- sealings nail, 100- burst disks；
11- gas vents, 21- liquid injection holes, 71- ceramic rings, 72- metal layers；
721- metal layers, the 722- coats of metal.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
In the description of the utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instructions such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship is for only for ease of description the utility model and simplifies description rather than instruction or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
Please refer to Fig. 1 to Fig. 4, the hermetically sealed ultracapacitor of one embodiment includes：Outside anode outer cover 10, cathode
Lid 20, shell 30, capacitor battery core 40, negative current collector 50, negative terminal 60 and sealing ring 70.Outside anode outer cover 10 and cathode
Lid 20 is connected to 30 both ends of shell, capacitor battery core 40 and negative current collector 50 and is arranged on inside shell 30, capacitor electricity
40 one end of core is connected with anode outer cover 10, and negative current collector 50 is connected to the other end of capacitor battery core 40, negative terminal 60
Set up separately to put and be connected in 30 inside of shell with negative current collector 50, partially pass through cathode outer cover 20 and be arranged on outside shell 30；Cathode
Terminal 60, which is arranged between the part inside shell 30 and cathode outer cover 20, has a seal clearance；Sealing ring 70 includes ceramic ring
71 and the metal layer 72 on 71 surface of ceramic ring is arranged on, ceramic ring 71 is arranged in seal clearance, and is distinguished by metal layer 72
With 60 soldering connection of cathode outer cover 20 and negative terminal.
Specifically, filling electrolyte in capacitor battery core 4, cathode outer cover 20 and negative terminal 60 using aluminium, copper and its
Alloy or copper nickel plating material, 30 integrated plus plate current-collecting body of shell, the punch forming integrated with plus plate current-collecting body of shell 30,
It is integrally formed on anode outer cover 10 and is provided with positive terminal, anode outer cover 10 and shell 30 are made of aluminum or aluminum alloy.Electricity
Container battery core 40 is connected with plus plate current-collecting body by laser welding, and the interference fit of anode outer cover 10 is in close contact plus plate current-collecting body,
And pass through laser welding and be tightly connected with shell 30, negative current collector 50 is connected with 40 laser welding of capacitor battery core, negative pole end
Son 60 be connected with 50 laser welding of negative current collector, and cathode outer cover 20 is connected with 30 laser welding of shell, negative terminal 60 with bear
Pole outer cover 20 is joined together by sealing ring sealed with brazing.
Above-mentioned hermetically sealed ultracapacitor, 71 surface of ceramic ring are provided with metal layer 72, and ceramic ring 71 passes through metal layer
72 respectively with 60 soldering connection of cathode outer cover 20 and negative terminal, in brazing process, the solder alloy and gold that melt at high temperature
The metal surface for belonging to layer 72, cathode outer cover 20 and negative terminal 60 all has good wellability, can realize high intensity, Gao Ke
The sealing welding leaned on.When the sealing ring 70 of hermetically sealed ultracapacitor assembles, respectively by negative terminal 60 and sealing ring 70, sealing
Ring 70 passes through brazing solder high temperature brazing under an inert atmosphere with cathode outer cover 20, you can the negative pole end of obtained integrated sealing
Son and cathode outer cover structure realize the cathode of capacitor battery core 40 and shell 30 be hermetically sealed is dielectrically separated from, sealing intensity height, and can
It realizes 70 automatic welding of sealing ring, the production efficiency of ultracapacitor can be greatly improved.
As shown in figure 4, in one embodiment, metal layer 72 includes metal layer 721 and the coat of metal 722, metallization
Layer 721 is arranged between ceramic ring 71 and the coat of metal 722.Specifically, as shown in figure 4, metal layer 72 is arranged on ceramic ring 71
It on upper opposite two sides, is arranged at intervals between two metal layers 72 being oppositely arranged, so as to form insulating segment on ceramic ring 71
711, to ensure the insulation performance of sealing ring 70 while the sealing performance of sealing ring 70 is ensured, it is ensured that negative terminal 60 and negative
It insulate and stablizes between pole outer cover 20.
In one embodiment, metal layer 721 is molybdenum manganese powder layer, and the coat of metal 722 is nickel coating.Specifically, seal
Ring 70 is by the way that on 71 surface of ceramic ring, through silk-screen printing molybdenum manganese electronic conduction slurry, high temperature sintering forms chemical again after molybdenum manganese powder layer
Nickel plating forms nickel coating and obtains.Further, ceramic ring 71 is by Al2O3、ZrO2It is sintered into after modifying agent, sintering aid mixing
Type after 71 sinter molding of ceramic ring, is starched using screen printing mode in the opposite two-face printing molybdenum manganese electronic conduction of ceramic ring 71
Material makes ceramic ring 71 and the molybdenum manganese powder material on surface strong bonded, molybdenum manganese powder layer is formed, afterwards in aqueduct through vacuum high-temperature sintering
Chemical nickel plating forms nickel coating in molybdenum manganese powder layer surface.In the present embodiment, metal layer 721 is molybdenum manganese powder layer, and electrocondution slurry is adopted
With molybdenum manganese powder material and a small amount of binding agent, the granularity of molybdenum powder material is no more than 3um.In other embodiments, metal layer can also be
Other metal bisques, such as silver powder layer, palladium bisque or bronze layer, corresponding electronic conduction slurry is using silver paste, palladium slurry or gold paste
, therefore, it is one embodiment that more than metal layer 721, which is adopted as molybdenum manganese powder layer, is not used to limit the utility model.
As shown in Figure 1, shown in Figure 5, in one embodiment, hermetically sealed ultracapacitor further includes insulation filling ring 80, cathode
Terminal 60 has a clearance for insulation through the part of cathode outer cover 20 and cathode outer cover 20, and insulation filling ring 80 is arranged on absolutely
In intermarginal gap, and connection is abutted with cathode outer cover 20 and negative terminal 60 respectively.The diameter of insulation filling ring 80 is less than sealing ring
70 diameter sets insulation filling ring 80 in clearance for insulation, can further improve cathode outer cover 20 and negative terminal 60 it
Between insulation performance, it is ensured that the insulation of negative terminal 60 and shell 30 is stablized.In the present embodiment, using the insulation filling ring of minor diameter
80 filling clearance for insulations, so that usual endless design may be employed in sealing ring 70, the machinery for being conducive to enhance sealing ring 70 is strong
Degree improves the mechanical strength of insulation system entirety.In one embodiment, to be consistent with 70 material of sealing ring, insulation is filled out
Ring 80 is filled for ceramic filler ring.But in other embodiments, insulation filling ring can also use rubber filling ring, silica gel to fill out
Fill ring or filling plastic ring.
Further, in one embodiment, liquid injection hole 21, hermetically sealed ultracapacitor are further opened on cathode outer cover 20
Sealing nail 90 is further included, liquid injection hole 21 is used in generating process inject electrolyte, and sealing is followed closely in 90 insertion liquid injection holes 21 and cathode
Outer cover 20 is welded to connect, for completing to be sealed liquid injection hole 21 after electrolyte injects.
As shown in Fig. 1, Fig. 6, in one embodiment, hermetically sealed ultracapacitor further includes burst disk 100, anode outer cover
Gas vent 11 is offered on 10, burst disk 100 is arranged in gas vent 11 and is connected with anode outer cover 10.
Generally, ultracapacitor can make electricity in use since activated carbon electrodes are to the catalytic decomposition of electrolyte
Gas is constantly generated inside container with certain internal pressure, once gas is excessive, internal pressure is excessive easy to explode so that surpass
There are security risks for grade capacitor.In the present embodiment, burst disk 100 is installed on anode outer cover 10, when internal pressure reaches burst disk
During 100 preset pressure value, burst disk 100 can rupture, and to be vented in time, avoid exploding, so as to reduce super capacitor
Danger during device use, it is ensured that it is safe to use, substantially increase product reliability.In one embodiment, burst disk
100 thickness is 0.1mm-0.3mm, and the pressure adjustable range of burst disk is 0.6MPa-1.0MPa.Further, burst disk 100
It is made of PP (Polypropylene, polypropylene) film.
Above-mentioned hermetically sealed ultracapacitor realizes the full-automatic operation of assembling process, substantially increases ultracapacitor
Production efficiency, improving productivity by conventional Super capacitor 1PPM (1 ultracapacitor/lithium-ion capacitance per minute
Device) more than 10PPM is increased to, and the leakage rate during product use is reduced to zero leakage by original 1.5%, disclosure satisfy that
The reliability requirement of the industrial circles high quality such as new-energy automobile/aerospace, it is applied widely.Detailed description below is above-mentioned
The production process of hermetically sealed ultracapacitor：
First, negative terminal 20 is connected with 70 high temperature brazing of sealing ring, then by sealing ring 70 and cathode outer cover 20 into one
The negative terminal 60 and cathode outer cover 20 that step high temperature brazing is tightly connected, negative terminal 60 is set in by insulation filling ring 80
On, the clearance for insulation between negative terminal 60 and cathode outer cover 20 is filled, completes negative terminal 60 and negative terminal and sealing ring
70 assemblings；Afterwards, capacitor battery core 40 first is carried out laser welding with negative current collector 50 to be connected, then by 50 He of negative current collector
Negative terminal 60 carries out laser welding and is connected；Then, by 30 laser welded seal of cathode outer cover 20 and shell, by capacitor battery core
40 carry out laser welding with shell 30 is connected, then makes the close contact of the interference fit of anode outer cover 10 and shell 30 integrated
Plus plate current-collecting body, and anode outer cover 10 is connected with 30 laser welded seal of shell.Finally, after capacitor vacuum drying, pass through
Hermetically sealed ultracapacitor finished product is obtained after the quantitative electrolyte of the injection of liquid injection hole 217, insertion sealing 80 laser welded seals of nail.
Specifically, in negative terminal 60 and cathode outer cover 10 and 70 assembling process of sealing ring, negative terminal 60 and sealing ring
By brazing solder, high temperature brazing obtains integrated sealing under an inert atmosphere between 70 and sealing ring 70 and cathode outer cover 20
Negative terminal 60 and 10 sealing structure of cathode outer cover.Generally, cathode end cap 10 all contains aluminium, the fusing point of aluminium is 660 degree, because
This, brazing solder uses the alloy of low melting point, and such as yellow gold of the fusing point between 540 DEG C~850 DEG C, inert gas can be used
Nitrogen, argon gas or helium etc..
Above-mentioned hermetically sealed ultracapacitor, by including ceramic ring 71 and gold between negative terminal 60 and cathode outer cover 20
The sealing ring 70 for belonging to layer 72 seals, and metal layer 72 is arranged on 71 surface of ceramic ring, and ceramic ring 71 is by metal layer 72 respectively with bearing
Extreme son 60 and 20 soldering connection of cathode outer cover realize the cathode of capacitor battery core 40 and shell 30 are hermetically sealed is dielectrically separated from, close
Sealing strength is high, can effectively ensure that air-tightness, reduces leakage probability.Also, 71 performance of ceramic ring is stablized, and service life is long, energy
Enough greatly prolong the service life of ultracapacitor.Meanwhile sealing ring 70 and negative terminal 60 and the company of soldering of cathode outer cover 20
It connects, automatic welding can be achieved in the assembling of sealing ring 70, realizes the automation mechanized operation of the entire production process of ultracapacitor, significantly
Hand labor intensity is saved, improves ultracapacitor production efficiency.Therefore, compared with conventional Super capacitor, above-mentioned is complete
Sealing ultracapacitor has the high advantageous effect of sealing intensity height, service life length, high degree of automation, production efficiency.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of hermetically sealed ultracapacitor, which is characterized in that including：Anode outer cover (10), cathode outer cover (20), shell
(30), capacitor battery core (40), negative current collector (50), negative terminal (60) and sealing ring (70), the anode outer cover (10)
The shell (30) both ends, the capacitor battery core (40) and negative current collector are connected to the cathode outer cover (20)
(50) it is internal to be arranged on the shell (30), described capacitor battery core (40) one end is connected with the anode outer cover (10), described
Negative current collector (50) is connected to the other end of the capacitor battery core (40), and the negative terminal (60) is partly arranged on described
It is connected inside shell (30) with the negative current collector (50), partially passes through the cathode outer cover (20) and be arranged on the shell
(30) it is external；The negative terminal (60), which is arranged between the internal part of the shell (30) and the cathode outer cover (20), to be had
There is a seal clearance；The sealing ring (70) includes ceramic ring (71) and the metal layer for being arranged on the ceramic ring (71) surface
(72), the ceramic ring (71) is arranged in the seal clearance, and by the metal layer (72) respectively with outside the cathode
Cover (20) and the negative terminal (60) soldering connection.
2. hermetically sealed ultracapacitor according to claim 1, which is characterized in that the metal layer (72) includes metallization
Layer (721) and the coat of metal (722), the metal layer (721) are arranged on the ceramic ring (71) and the coat of metal
(722) between.
3. hermetically sealed ultracapacitor according to claim 2, which is characterized in that the metal layer (721) is molybdenum manganese
Bisque.
4. hermetically sealed ultracapacitor according to claim 2, which is characterized in that the coat of metal (722) is plated for nickel
Layer.
5. hermetically sealed ultracapacitor according to claim 1, which is characterized in that further include insulation filling ring (80), institute
Stating negative terminal (60) has a clearance for insulation through the part of the cathode outer cover (20) and the cathode outer cover (20),
The insulation filling ring (80) is arranged in the clearance for insulation, and respectively with the cathode outer cover (20) and the negative terminal
(60) connection is abutted.
6. hermetically sealed ultracapacitor according to claim 5, the insulation filling ring (80) is ceramic filler ring, rubber
Ring type filling, silicone filler ring or filling plastic ring.
7. hermetically sealed ultracapacitor according to claim 1, which is characterized in that further include sealing and follow closely, outside the cathode
It covers and offers liquid injection hole, the sealing nail is inserted into the liquid injection hole and is welded to connect with the cathode outer cover.
8. hermetically sealed ultracapacitor according to claim 1, which is characterized in that further include burst disk (100), it is described just
Gas vent (11) is offered on pole outer cover (10), the burst disk (100) is arranged in the gas vent (11) and the anode
Outer cover (10) connects.
9. hermetically sealed ultracapacitor according to claim 8, which is characterized in that the thickness of the burst disk (100) is
0.1mm-0.3mm, the pressure adjustable range of the burst disk (100) is 0.6MPa-1.0MPa.
10. hermetically sealed ultracapacitor according to claim 8 or claim 9, which is characterized in that the burst disk (100) uses
PP films are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721553800.1U CN207425642U (en) | 2017-11-20 | 2017-11-20 | Hermetically sealed ultracapacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721553800.1U CN207425642U (en) | 2017-11-20 | 2017-11-20 | Hermetically sealed ultracapacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425642U true CN207425642U (en) | 2018-05-29 |
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ID=62303455
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721553800.1U Active CN207425642U (en) | 2017-11-20 | 2017-11-20 | Hermetically sealed ultracapacitor |
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| CN (1) | CN207425642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749351A (en) * | 2017-11-20 | 2018-03-02 | 上海奥威科技开发有限公司 | Hermetically sealed ultracapacitor and its manufacture method |
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2017
- 2017-11-20 CN CN201721553800.1U patent/CN207425642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749351A (en) * | 2017-11-20 | 2018-03-02 | 上海奥威科技开发有限公司 | Hermetically sealed ultracapacitor and its manufacture method |
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