CN209388893U - Highly reliable inner series cylinder supercapacitor - Google Patents
Highly reliable inner series cylinder supercapacitor Download PDFInfo
- Publication number
- CN209388893U CN209388893U CN201920000196.2U CN201920000196U CN209388893U CN 209388893 U CN209388893 U CN 209388893U CN 201920000196 U CN201920000196 U CN 201920000196U CN 209388893 U CN209388893 U CN 209388893U
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- China
- Prior art keywords
- electrode slice
- battery core
- highly reliable
- diaphragm
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Cell Electrode Carriers And Collectors (AREA)
Abstract
Highly reliable inner series cylinder supercapacitor, including battery core, pole and periphery encapsulating structure.Battery core is stacked by electrode slice, rubber ring film and diaphragm, and electrode slice includes the active material layer of nickel screen and punching press in nickel screen upper and lower surface.By coordination electrode tablet quality, thickness and compacted density come the consistency of coordination electrode piece.Electrode slice periphery is cased with rubber ring film, and rubber ring film can make the diameter of diaphragm be noticeably greater than electrode slice while protecting pole piece, it is ensured that effective insulation between electrode slice.Battery core periphery has poured sealing resin, it is possible to reduce damage of the vibration to battery core, while the good heat-proof quality of sealing resin can reduce influence of the environment temperature to capacitor.Design is there are two safety valve on capacitor package steel shell, can in pressure limit releasing capacitor internal pressure.The utility model electrical insulating property, capacitor between electrode slice fastness, pole piece be shockproof, it is heat-insulated, in terms of all have performance outstanding.
Description
Technical field
The utility model relates to supercapacitor manufacturing technology fields, specifically, it is super to refer in particular to highly reliable inner series cylinder
Grade capacitor.
Background technique
High-voltage large-capacity supercapacitor is because using voltage height, capacity is big, power density is big, has extended cycle life, environment
It pollutes the advantages that small and is widely used in the fields such as high-power storage, transport, starting, military affairs.Inner series cylinder supercapacitor
Due to compact-sized, do not need additional periphery accessory and attract attention.
Due to the limitation of electrolyte decomposition voltage, the voltage rating of aqueous super capacitor monomer is interior all within 1.2V
String data cylinder supercapacitor realizes that the mode of high pressure is directly to be stacked up multiple electrodes piece.Due to Different electrodes piece capacity
With the difference of internal resistance, respective electrode leads are easy to cause because carrying overtension, makes electrolyte decomposition.The diameter etc. of usual diaphragm
In or be slightly wider than the diameter of electrode slice, in battery core stacking process, the offset of diaphragm very little is easy for leading to adjacent electrode piece
It is short-circuit due to contacting with each other.Meanwhile capacitor is influenced by ambient temperature big, high temperature or low temperature are all easy to make the performance of capacitor
Deteriorate.In addition, battery core volume is big and weight is all larger, external vibration be easy to cause battery core to shift, to cause to damage to capacitor
Evil.
Summary of the invention
The highly reliable inner series cylinder supercapacitor that the utility model exactly proposes in order to solve the above problem, Ke Yiti
The consistency of high capacitance electrode slice, and can ensure that and effectively insulate between capacitor electrode slice, environment temperature can also be made to electricity
The influence of container performance substantially reduces, and the safety used also greatly improves.
The technical solution of the utility model is: highly reliable inner series cylinder supercapacitor, including battery core, it is characterised in that
Battery core is stacked by electrode slice, the rubber ring film and diaphragm that cover in electrode slice periphery, has one between two neighboring electrode slice
Aqueous electrolyte is all impregnated in diaphragm, electrode slice and diaphragm, battery core is sealed in encapsulation steel shell and encapsulates the circle that steel plate is surrounded
Column body.
In this structure, electrode slice includes nickel screen and punching press in the active material layer of nickel screen upper and lower surface, each electrode slice
Quality and resistance are equal.
In this structure, rubber ring film internal diameter is equal to electrode slice diameter, and thickness is equal with electrode slice thickness.
In this structure, diaphragm is supercapacitor aqueous electrolyte dedicated diaphragm, and diaphragm diameter is equal to outside rubber ring film
Diameter.
In this structure, respectively there is one block of current collection steel plate at battery core both ends, and current collection steel plate center weld has pole.
In this structure, encapsulating has one piece of insulating resin plate between steel plate and current collection steel plate, insulating resin board diameter and encapsulation
Steel plate is identical.
In this structure, sealing resin has been poured in the space that battery core, current collection steel plate and encapsulation steel shell are surrounded.
In this structure, encapsulating tool on steel shell, there are two safety valves.
In this structure, encapsulation steel plate center hole is embedded to be cased with seal washer.
The utility model has the advantages of be: electrode active material layer punching press is on nickel screen, and nickel screen is in addition to as current collection
Pole reduces outside electrode internal resistance, and also as the attachment of active material layer, the electrode slice adhesive force that this mode makes is more than coating
The adhesive force of pole piece prepared by mode is strong, and electrode slice is not easy to lose powder, and the service life is longer.
Capacitor electrode slice generallys use coating method production, is then cut into the size of needs again.This mode is shown
It writes the disadvantage is that necessarily leading to electrode slice Density inhomogeneity, to cause different electricity due to being coated with the inhomogeneities with nipping process
Pole piece quality has differences, and capacity is caused to have differences, and keeps the voltage bearing capacity of Different electrodes piece different, the small electrode of capacity
Piece will first reach electrolyte decomposition voltage.The utility model makes electrode slice, each electrode of strict control using special method
The quality and internal resistance of piece make each electrode slice quality having the same and internal resistance.
The periphery of each electrode slice of the utility model is cased with rubber ring film, and design of diaphragm diameter is equal to rubber ring film
Outer diameter, so that diaphragm diameter is noticeably greater than electrode slice diameter, to ensure effectively to insulate between electrode slice.In addition, rubber ring film
Can with effective protection electrode slice and diaphragm, make its it is subsequent pour sealing resin when be not damaged.
By pouring sealing resin in battery core periphery, it can effectively completely cut off battery core and extraneous heat transfer, to reduce
Influence of the environment temperature to capacitor, improves the reliability of capacitor.In addition, sealing resin can also securely fix battery core
Inside encapsulation steel shell, reduce damage of the external vibration to battery core.
There are two safety valves for design on capacitor package steel shell, can lead to capacitor internal pressure limit because unexpected
When, releasing capacitor internal pressure improves the safety that capacitor uses.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is the utility model electrode slice structural schematic diagram.
Fig. 3 is the utility model part schematic diagram of cell structure
In attached drawing: 1- battery core；2- encapsulates steel shell；3- encapsulates steel plate；4- electrode slice；5- nickel screen；6- active material layer；7- every
Film；8- rubber ring film；9- sealing resin；10- current collection steel plate；11- pole；12- insulating resin plate；13- seal washer；14-
Safety valve.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
The electrode slice of inner series cylinder supercapacitor generallys use coating method and is made, required for then cutting into again
Size.Different from conventional method, for the consistency of strict control electrode slice, electrode slice 4 described in the utility model is taken one by one
The mode of punching press makes.
As the skeleton of electrode slice 4, nickel screen 5 is formed by large scale nickel screen punching, and diameter is equal to 4 diameter of electrode slice.
Active material layer 6 is made by the upper and lower surface by the punching press of active material mixture in nickel screen 5.Specific preparation method
The good active material mixture of configured in advance for weighing certain mass, using stamping die be stamped into nickel screen 5 up and down
Surface, 4 structure of electrode slice are as shown in Figure 2.Other than material of main part active carbon, in order to improve bond effect, active material mixing
A certain proportion of binder is added in material, while in order to reduce electrode internal resistance, a certain proportion of conductive agent is additionally added in mixture.
In order to keep the capacity of each electrode slice 4 equal, the mixture quality that each electrode slice 4 uses is equal.When 4 punching press of electrode slice, first
Precompressed is carried out, it is subsequent then to use high pressure punching press, and strict control pressure, precision prison to improve the thickness uniformity of electrode slice 4
The thickness of different parts is controlled, the compacted density uniformity of electrode slice 4 is improved.
Electrode slice 4 is first put into electrolyte before assembling and is soaked in vacuum, and then covers upper plantation rubber in each 4 periphery of electrode slice
The internal diameter of ring plate 8, rubber ring film 8 is equal to 4 diameter of electrode slice, and thickness is equal with 4 thickness of electrode slice.Rubber ring film 8 can be with
It is effectively protected electrode slice 4.
When assembling battery core 1, it is put into a diaphragm 7 between two neighboring electrode slice 4, assembly method is as shown in Figure 3.The diaphragm
7 be supercapacitor inorganic electrolyte liquid dedicated diaphragm, and 7 diameter of diaphragm is equal to the outer diameter of 4 peripheral rubber circular ring plate 7 of electrode slice.Heap
4 close alignment of adjacent electrode piece is required during folded, and diaphragm 7 is not completely exposed.Since 7 diameter of diaphragm is equal to rubber ring
The outer diameter of piece 8, therefore 7 diameter of diaphragm is noticeably greater than 4 diameter of electrode slice, can be effectively prevented between electrode slice 4 because contacting with each other
And it is short-circuit.
Encapsulation steel shell 2 is fixed along short transverse vertically, from the bottom up successively assembly encapsulation steel plate 3, seal washer 13, absolutely
Edge resin plate 12 and the current collection steel plate 10 for being welded with pole 11.The effect of seal washer 13 is the same of raising capacitor leakproofness
When, it is ensured that pole 11 is electrically insulated with encapsulation steel plate 3.Insulating resin plate 12 functions as encapsulation steel plate 3 and current collection steel plate 10
Between electrical isolation object.Charge exit of the pole 11 as capacitor.The effect of current collection steel plate 10 be increase pole 11 with
The electrical-contact area of battery core 1 is conducive to the charge transmission under high current operating condition.
Battery core 1 is packed into encapsulation steel shell 2, then has the current collection steel plate 10 of pole 11 in 1 upper surface erection welding of battery core, then
The sealing resin 9 of melting is perfused down from the gap around current collection steel plate 10, sealing resin 9 will flow into and fill up current collection steel plate
10, the space that battery core 1 and encapsulation steel shell 2 are surrounded.Battery core 1 can be not only securely fixed in encapsulation steel shell 2 by sealing resin 9
It is interior, reduce damage of the external vibration to battery core 1, and due to the good thermal insulation of sealing resin 9, battery core 1 is by environment temperature
Influence will greatly reduce, and improve the reliability of capacitor.
After the completion of sealing resin 9 pours, insulating resin plate 12, encapsulation steel plate 3 and seal washer 13 are successively assembled, finally will
The encapsulation steel plate 3 and capacitor surrounding package steel shell 2 at capacitor both ends carry out seamless welding.
Encapsulating the design above of steel shell 2, there are two safety valves 14, and its role is to can lead to when capacitor internal pressure is excessive
It crosses safety valve 14 and discharges internal pressure.
Embodiment 1
The group of active material mixture become active carbon, carbon black and polytetrafluoroethylene (PTFE) mass percentage be respectively 75%,
20% and 5%, 4 quantity of electrode slice is 156, and 4 diameter of electrode slice is 210mm, and with a thickness of 1.6mm, 7 diameter of diaphragm is 220mm, group
Dressing up voltage rating is 140V, and capacity is 3.45F supercapacitor.
Embodiment 2
The group of active material mixture become active carbon, carbon black and polytetrafluoroethylene (PTFE) mass percentage be respectively 85%,
12% and 3%, 4 quantity of electrode slice is 60, and 4 diameter of electrode slice is 210mm, with a thickness of 1.2mm.7 diameter of diaphragm is 220mm, group
Dressing up voltage rating is 54V, and capacity is 7.60F supercapacitor.
Claims (9)
1. highly reliable inner series cylinder supercapacitor, including battery core (1), it is characterised in that battery core (1) is by electrode slice (4), set
Rubber ring film (8) and diaphragm (7) in electrode slice periphery stack, and have a diaphragm between two neighboring electrode slice (4)
(7), it is all impregnated with aqueous electrolyte in electrode slice (4) and diaphragm (7), battery core (1) is sealed in encapsulation steel shell (2) and encapsulation steel plate
(3) inside the cylindrical body surrounded.
2. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that electrode slice (4) includes nickel
In the active material layer (6) of nickel screen (5) upper and lower surface, the quality and resistance of each electrode slice (4) are equal for net (5) and punching press.
3. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that in rubber ring film (8)
Diameter is equal to electrode slice (4) diameter, and thickness is equal with electrode slice (4) thickness.
4. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that diaphragm is (7) super electricity
Container aqueous electrolyte dedicated diaphragm, diaphragm (7) diameter are equal to rubber ring film (8) outer diameter.
5. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that battery core (1) both ends respectively have
One piece of current collection steel plate (10), current collection steel plate (10) center weld have pole (11).
6. highly reliable inner series cylinder supercapacitor according to claim 1 or 5, it is characterised in that encapsulation steel plate (3)
There is one piece of insulating resin plate (12) between current collection steel plate (10), insulating resin plate (12) diameter is identical as encapsulation steel plate (3).
7. highly reliable inner series cylinder supercapacitor according to claim 1 or 5, it is characterised in that battery core (1), current collection
Sealing resin (9) have been poured in the space that steel plate (10) and encapsulation steel shell (2) are surrounded.
8. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that have in encapsulation steel shell (2)
There are two safety valve (14).
9. highly reliable inner series cylinder supercapacitor according to claim 1, it is characterised in that encapsulation steel plate (3) center
Hole is embedded to be cased with seal washer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000196.2U CN209388893U (en) | 2019-01-01 | 2019-01-01 | Highly reliable inner series cylinder supercapacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000196.2U CN209388893U (en) | 2019-01-01 | 2019-01-01 | Highly reliable inner series cylinder supercapacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209388893U true CN209388893U (en) | 2019-09-13 |
Family
ID=67863498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920000196.2U Expired - Fee Related CN209388893U (en) | 2019-01-01 | 2019-01-01 | Highly reliable inner series cylinder supercapacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209388893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024019A (en) * | 2021-10-29 | 2022-02-08 | 中汽创智科技有限公司 | Preparation method and application of all-solid-state battery cell |
-
2019
- 2019-01-01 CN CN201920000196.2U patent/CN209388893U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024019A (en) * | 2021-10-29 | 2022-02-08 | 中汽创智科技有限公司 | Preparation method and application of all-solid-state battery cell |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20210101 |