CN110085451A - A method of improving super capacitor electric core uniform drying - Google Patents
A method of improving super capacitor electric core uniform drying Download PDFInfo
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- CN110085451A CN110085451A CN201810071322.3A CN201810071322A CN110085451A CN 110085451 A CN110085451 A CN 110085451A CN 201810071322 A CN201810071322 A CN 201810071322A CN 110085451 A CN110085451 A CN 110085451A
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- battery core
- super capacitor
- drying
- supercapacitor
- electric core
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- 238000001035 drying Methods 0.000 title claims abstract description 72
- 239000003990 capacitor Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011888 foil Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000005030 aluminium foil Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000000178 monomer Substances 0.000 description 23
- 238000012360 testing method Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000005486 organic electrolyte Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007781 pre-processing Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- -1 tetraethyl ammonium tetrafluoro boric acid Chemical compound 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/04—Drying; Impregnating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The present invention provides a kind of method for improving super capacitor electric core uniform drying, include: the pretreatment of (1) battery core: electrode for super capacitor is fabricated to battery core together with diaphragm, the battery core is packed into metal-back and is sealed with multicellular metal foil, pretreatment supercapacitor battery core is obtained；(2) contact drying: above-mentioned pretreated battery core is added in the drying equipment with no dead angle rotation function together with heat filling and is dried in vacuo.In drying means provided by the invention, heat filling, which is directly contacted with supercapacitor metal-back and sealing with metal foil, to be conducive to transfer heat in battery core, to significantly improve the drying effect of supercapacitor battery core, pass through the temperature uniformity that heat filling is ensured without dead angle rotation of drying equipment, to ensure that the consistency of supercapacitor battery core after drying, electrode and diaphragm water content are respectively less than 20ppm in battery core after drying.
Description
Technical field
The present invention relates to supercapacitor technologies fields, and in particular to a kind of raising super capacitor electric core uniform drying
Method.
Background technique
Electric double layer type supercapacitor is to store energy by forming electric double layer in electrode and electrolyte interface, in order to
Reach higher energy density, electrode for super capacitor ratio is on the one hand improved by using the active material of high-specific surface area
Hold, the operating voltage of supercapacitor monomer is on the other hand improved by using organic electrolyte.Since supercapacitor is used
Organic electrolyte meets the easy decomposed metamorphic of water electrode, and rotten electrolyte can not only make supercapacitor electrical property that rapid degradation occur,
And the CO that electrolyte decomposition generates2And H2Equal gases can also bring the security risks such as explosion.Therefore, using organic electrolyte
Supercapacitor, it is necessary to which strict control monomer assembles the water content of each process, uses the super of AN or PC organic electrolyte system
Capacitor is needed the water content control of electrolyte to 20ppm or less.
Battery core drying is one of the important step of supercapacitor monomer assembling procedure.In remaining assembling procedure and its assembling
Under conditions of environment is controllable, the water content of battery core to the capacity of super capacitor of organic electrolyte system, internal resistance and is followed after drying
There is decisive influence in ring service life etc..
Chinese patent CN103745840 A discloses the drying means and drying device of a kind of supercapacitor battery core,
Supercapacitor is put in drying chamber with battery core first and drying chamber is vacuumized；Then nitrogen is injected into drying chamber, it will
Drying chamber is heated to 120~200 DEG C, then vacuumizes to drying chamber；Keep vacuum degree in tank that drying chamber heated at constant temperature 5~10 is small
When, nitrogen is finally injected into drying chamber.The battery core dried using this drying means, electrode and diaphragm still have higher
Water content.Water remaining in battery core in ageing process is had a problem in that with the supercapacitor monomer that this battery core assembles
Divide and electrochemical reaction constantly occurs with electrolyte, so that drum has occurred for the monomer after aging, the cycle life of monomer is substantially reduced,
Monomer after disassembling aging finds that partial exfoliation has occurred for the powder on electrode.
103295801 B of Chinese patent CN discloses a kind of manufacturing method of supercapacitor, first by supercapacitor
Battery core is put in sealing in drying chamber and drying chamber is heated to 100 DEG C or more, keeps the temperature 30 to 40 minutes；Then it is taken out to drying chamber true
Dry pressure inside the tank is made to reach 100Pa for sky hereinafter, heat preservation and pressure maintaining 4 hours or more after vacuumizing；By drying chamber be cooled to 20 to
25 DEG C, then inject nitrogen into drying chamber, keeps pressure in drying chamber and tank external pressure equal, finally seal drying chamber.By
In under vacuum conditions, drying chamber heat conduction is insufficient, and drying efficiency is lower, and close to the dry temperature of the battery core of dry tank skin
Spend relatively high, battery core drying temperature apart from each other is relatively low with dry tank skin, therefore, is in different positions after the completion of dry
The battery core water content set is different.
Summary of the invention
The problems such as existing super capacitor electric core moisture content height, uneven drying, the present invention provides a kind of raising
The method of super capacitor electric core uniform drying can make to be done at the same temperature with a batch of supercapacitor with battery core
Dry, the water content of electrode and diaphragm is respectively less than 20ppm in each battery core after drying.
In order to achieve the above object, The technical solution adopted by the invention is as follows:
A method of improving super capacitor electric core uniform drying, comprising the following steps:
(1) battery core pre-processes: electrode for super capacitor being fabricated to battery core together with diaphragm, which is packed into metal
In shell
And sealed with multicellular metal foil, obtain pretreatment supercapacitor battery core；
(2) contact drying: above-mentioned pretreated battery core is added with no dead angle rotational work together with heat filling
Energy is done
It is dried in vacuo in dry equipment, the battery core after obtaining contact drying.
Further, multicellular metal foil described in step (1) is selected from stainless steel foil, copper foil, aluminium foil, nickel foil, silver foil, gold
One of foil, platinum foil.
Further, the aperture of multicellular metal foil described in step (1) is 0.02~5mm.The multicellular metal foil
Aperture is preferably uniform, and the deviation in the aperture controls within ± 5%.
In some embodiments, the aperture of multicellular metal foil described in step (1) is 0.5~5mm, such as:
0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm, etc..
In the present invention, the thickness of multicellular metal foil described in step (1) has no special requirements.In some embodiments, institute
State multicellular metal foil with a thickness of 0.1~1mm.
Further, battery core described in step (2) and the volume ratio of heat filling are 1:1~10, such as: 1:1,1:2,1:
3,1:4,1:5,1:6,1:7,1:8,1:9 or 1:10, etc..
Further, the partial size of heat filling described in step (2) is greater than multicellular metal foil described in step (1)
Aperture, to prevent heat filling in drying equipment rotary course from polluting battery core in multicellular metal foil.
In some embodiments, the partial size of the heat filling is 1.1-2 times of the aperture of multicellular metal foil, such as:
1.1 times, 1.2 times, 1.3 times, 1.4 times, 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times or 2 times, etc..
Further, heat filling described in step (2) is prill or ceramic bead.
It is further preferred that the prill is selected from one of stainless steel ball, copper ball, aluminium ball；The ceramics are small
Ball is selected from one of silica, aluminum oxide, zirconium dioxide.
Further, the example of the drying equipment with no dead angle rotation function described in step (2) includes but is not limited to:
Vacuum rotary furnace, double conic rotary vacuum dryer, vacuum rake dryer, single cone ribbon vacuum drier, etc..
Further, vacuum drying temperature described in step (2) be 120~170 DEG C, such as: 120 DEG C, 130 DEG C,
140 DEG C, 150 DEG C, 160 DEG C or 170 DEG C, etc..
Further, the vacuum drying time described in step (2) is 12~72h.
It, can be selected from cylindrical type, square winding or square lamination, super capacitor as the structure of supercapacitor of the present invention
Device capacity can be selected from 1~10000F.
The beneficial effects of the present invention are:
(1) drying means provided by the invention, heat filling directly contacted with metal-back and multicellular metal foil be conducive to by
In heat transfer to battery core, so that the drying effect of supercapacitor battery core is significantly improved, it is dead by the nothing of drying equipment
Angle rotates the temperature uniformity for ensuring heat filling, to ensure that the consistency of supercapacitor battery core after drying；
(2) drying means provided by the invention, the lot stability of supercapacitor battery core is high after the completion of drying, dismantling
The electrode and diaphragm water content that battery core any position is measured after supercapacitor battery core are respectively less than 20ppm；
(3) the supercapacitor monomer that the battery core that drying means provided by the invention obtains is assembled into is through high-temperature load 1000
Without drum is played after hour, only occur after circulation 1,000,000 times it is slight play drum, monomer capacity and DC internal resistance size still with nominal value
It is closer to；
(4) drying means drying efficiency provided by the invention is high, is advantageously implemented industrialization.
Term definition
Terminology used in the present invention "one" or "an" describes element and component described herein.It does so only
It is for convenience, and to provide general meaning to the scope of the present invention.This description should be read to include one or extremely
It is one few, and the odd number also includes plural number, unless significantly separately referring to that he anticipates.
Number in the present invention is approximation, no matter whether uses the wordings such as " about " or " about ".The numerical value of number has
It is possible that the differences such as 1%, 2%, 5%, 7%, 8%, 10%.It is any to have whenever disclosing a number with N value
The number of N+/- 1%, N+/- 2%, N+/- 3%, N+/- 5%, N+/- 7%, N+/- 8% or the value of N+/- 10% can be by clearly public
It opens, adds deduct wherein " +/- " refers to, and the range between N-10% to N+10% is also disclosed.
Unless otherwise defined, the otherwise meaning of all scientific and technical terminologies used herein and common skill of the art
As art personnel are generally understood.Although similar or equivalent method and material also can be used with approach described herein and material
In the implementation or test of embodiment of the present invention, but suitable method and material is described below.What is be mentioned above is all
Publication, patent application, patent and other bibliography are incorporated herein in a manner of being cited in full text, and remove non-quoted physical segment
It falls.If conflict occurs, it is subject to this specification and its included definition.In addition, material, method and embodiment are only illustrative
, it is no intended to it is limited.
Specific embodiment
As described below is the preferred embodiment of the present invention, and what the present invention was protected is not limited to following preferred implementation side
Formula.It should be pointed out that a kind of drying means of supercapacitor battery core provided by the present invention, can be used for processing and need drying
Other electronic component battery cores of water removal, such as lithium ion battery battery core, lithium-ion capacitor battery core.For this field
Technical staff on the basis of the inventive concept, the several modifications and improvements made belong to guarantor of the invention
Protect range.Raw material used in embodiment can be obtained through commercial channels.
Embodiment 1
1) 8 × 20 electrode for super capacitor of Φ is wound into a collection of battery core together with NKK4048 type diaphragm, by the electricity
The porous aluminium foil sealing that it is 0.5mm with pore size after shell that core, which enters, obtains pretreatment supercapacitor battery core；
It 2) is 1:3 pretreatment obtained by step 1) is super according to the volume ratio of pretreatment supercapacitor battery core and copper ball
Capacitor is added in vacuum rotary furnace together with battery core with partial size being the copper ball of 0.8mm, super to pre-processing under revolving conditions
Capacitor is dried in vacuo for 24 hours with battery core at 130 DEG C, the battery core after being dried.
Embodiment 2
1) 22 × 45 electrode for super capacitor of Φ is wound into a collection of battery core together with NKK4048 type diaphragm, it will be described
The porous aluminium foil sealing that it is 1mm with pore size after shell that battery core, which enters, obtains pretreatment supercapacitor battery core；
It 2) is 1:5 pretreatment obtained by step 1) is super according to the volume ratio of pretreatment supercapacitor battery core and copper ball
Capacitor is added in vacuum rotary furnace together with battery core with partial size being the copper ball of 1.8mm, super to pre-processing under revolving conditions
Capacitor is dried in vacuo for 24 hours with battery core at 140 DEG C, the battery core after being dried.
Embodiment 3
1) 066595 square electrode for super capacitor is wound into a collection of battery core together with NKK4048 type diaphragm, by institute
It states battery core and enters the porous aluminium foil sealing for being 2mm with pore size after shell, obtain pretreatment supercapacitor battery core；
It 2) is 1:6 pretreatment obtained by step 1) is super according to the volume ratio of pretreatment supercapacitor battery core and copper ball
Capacitor is added in vacuum rotary furnace together with battery core with partial size being the copper ball of 2.5mm, super to pre-processing under revolving conditions
Capacitor is dried in vacuo for 24 hours with battery core at 140 DEG C, the battery core after being dried.
Embodiment 4
1) W60 × D56 × H160mm square electrode for super capacitor is wound into a batch together with NKK4048 type diaphragm
The battery core is entered the porous aluminium foil sealing for being 3mm with pore size after shell by battery core, obtains pretreatment supercapacitor electricity consumption
Core；
It 2) is 1:8 pretreatment obtained by step 1) is super according to the volume ratio of pretreatment supercapacitor battery core and copper ball
Capacitor is added in vacuum rotary furnace together with battery core with partial size being the copper ball of 3.5mm, super to pre-processing under revolving conditions
Capacitor is dried in vacuo for 24 hours with battery core at 160 DEG C, the battery core after being dried.
Comparative example 1
1) 066595 square electrode for super capacitor is wound into a collection of battery core together with NKK4048 type diaphragm, by institute
It states battery core and enters the porous aluminium foil sealing for being 2mm with pore size after shell, obtain pretreatment supercapacitor battery core；
2) pretreatment supercapacitor is added in conventional vacuum drying box with battery core, is dried in vacuo at 140 DEG C
For 24 hours, the battery core after being dried.
Performance test
1, water content is tested
The dry supercapacitor completed obtained by Examples 1 to 4 and comparative example 1 is transferred to vacuum glove box with battery core
In, appoint and 3 supercapacitors is taken to be disassembled with battery core, the winding of each electrode and diaphragm sample is tested with karl Fischer moisture tester
Initial position, winding middle position and the water content for winding final position.Test result is as shown in table 1.
2, electric performance test
After the porous aluminium foil of 1 gained battery core sealing part of Examples 1 to 4 and comparative example is removed, to the electricity for having aluminum hull
1M tetraethyl ammonium tetrafluoro boric acid is injected in core in the electrolyte and vacuum impregnation extremely saturation imbibition state of acetonitrile, is sealed, is obtained phase
Answer the supercapacitor monomer of specification and drying condition.Appoint take the monomer of each specification and drying condition each 10 at 60 DEG C
With 2.7V constant pressure energization 1000 hours, monomer show state is observed, tests the capacity and DC internal resistance of each monomer, is calculated every
The monomer of a kind of specification and drying condition capacity and average value of DC internal resistance after Road test.It separately takes each specification and does
Each 10 elder generations of the monomer of dry condition are with 75mA/F constant-current charge to 2.7V, then with 75mA/F constant-current discharge to 1.35V, and fill by this
Discharging condition recycles 1,000,000 times, observes monomer show state, tests the capacity and DC internal resistance of each monomer, calculates each
The monomer of kind specification and drying condition capacity and average value of DC internal resistance after loop test.Test result is as shown in table 2.
The water content of electrode and diaphragm after 1 super capacitor electric core of table is dry
By the test result of table 1 it is found that in the battery core that Examples 1 to 4 obtains electrode and diaphragm different location water content
Essentially identical and respectively less than 20ppm, and comparative example 1 is not due to having addition heat filling, is non-contact thermal, obtained battery core
The water content of middle electrode and diaphragm different location differs greatly and in 60ppm or more.Illustrate that heat filling and supercapacitor are used
Metal-back and sealing metal foil, which directly contact, to be conducive to transfer heat in battery core, to significantly improve super capacitor
The drying effect of device battery core, by the temperature uniformity for ensuring heat filling without dead angle rotation of drying equipment, to protect
The consistency of supercapacitor battery core after drying is demonstrate,proved.
2 super capacitor electrode the performance test results of table
By the test result of table 2 it is found that by the supercapacitor monomer of the dry gained battery core assembling of Examples 1 to 4 through height
Warm load, without drum is played, slight rise only occurs after recycling 1,000,000 times and rouses, monomer capacity and DC internal resistance size are still after 1000 hours
So it is closer to nominal value；And the supercapacitor monomer of the dry gained battery core assembling of comparative example 1 is small through high-temperature load 1000
When after occur it is significant play drum, monomer capacity is obviously relatively low with respect to nominal value, and DC internal resistance is also relatively large, the supercapacitor
After circulation 1,000,000 times quick-fried slurry occurs for monomer.Illustrate the dry insufficient electrical property that can significantly reduce supercapacitor of battery core and
Service life.
Claims (9)
1. a kind of method for improving super capacitor electric core uniform drying, which comprises the following steps:
(1) battery core pre-processes: electrode for super capacitor being fabricated to battery core together with diaphragm, which is packed into metal-back
And sealed with multicellular metal foil, obtain pretreatment supercapacitor battery core；
(2) contact drying: above-mentioned pretreated battery core is added with no dead angle rotation function together with heat filling
It is dried in vacuo in drying equipment, the battery core after obtaining contact drying.
2. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly multicellular metal foil described in (1) is selected from one of stainless steel foil, copper foil, aluminium foil, nickel foil, silver foil, goldleaf, platinum foil.
3. a kind of method for improving super capacitor electric core uniform drying according to claim 1 or 2, feature exist
In the aperture of multicellular metal foil described in step (1) is 0.02~5mm.
4. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly battery core described in (2) and the volume ratio of heat filling are 1:1~10.
5. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly the partial size of heat filling described in (2) is greater than the aperture of multicellular metal foil described in step (1).
6. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly heat filling described in (2) is prill or ceramic bead.
7. a kind of method for improving super capacitor electric core uniform drying according to claim 6, which is characterized in that institute
The prill stated is selected from one of stainless steel ball, copper ball, aluminium ball；The ceramic bead is selected from silica, three oxidations two
One of aluminium, zirconium dioxide.
8. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly the drying equipment with no dead angle rotation function described in (2) is selected from vacuum rotary furnace, double conic rotary vacuum dryer, true
One of empty rake type drier, single cone ribbon vacuum drier.
9. a kind of method for improving super capacitor electric core uniform drying according to claim 1, which is characterized in that step
Suddenly vacuum drying temperature described in (2) is 120~170 DEG C, and the time is 12~72h.
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| CN201810071322.3A CN110085451A (en) | 2018-01-25 | 2018-01-25 | A method of improving super capacitor electric core uniform drying |
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