CN106449126A - Method of embedding lithium for lithium ion capacitor by using third electrodes - Google Patents
Method of embedding lithium for lithium ion capacitor by using third electrodes Download PDFInfo
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- CN106449126A CN106449126A CN201610985775.8A CN201610985775A CN106449126A CN 106449126 A CN106449126 A CN 106449126A CN 201610985775 A CN201610985775 A CN 201610985775A CN 106449126 A CN106449126 A CN 106449126A
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- lithium
- negative pole
- pole
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- electrode
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 85
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003990 capacitor Substances 0.000 title claims abstract description 38
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 7
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000000178 monomer Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000013543 active substance Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 4
- VOYADQIFGGIKAT-UHFFFAOYSA-N 1,3-dibutyl-4-hydroxy-2,6-dioxopyrimidine-5-carboximidamide Chemical compound CCCCn1c(O)c(C(N)=N)c(=O)n(CCCC)c1=O VOYADQIFGGIKAT-UHFFFAOYSA-N 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 229910021385 hard carbon Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012785 packaging film Substances 0.000 claims description 3
- 229920006280 packaging film Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 claims description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 2
- CQDGTJPVBWZJAZ-UHFFFAOYSA-N monoethyl carbonate Chemical compound CCOC(O)=O CQDGTJPVBWZJAZ-UHFFFAOYSA-N 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000002390 adhesive tape Substances 0.000 abstract 1
- 230000001351 cycling effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- 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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- 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)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a method of embedding lithium for a lithium ion capacitor by using third electrodes and belongs to the technical field of manufacture of lithium ion capacitors. A negative pole, a diaphragm and a positive pole diaphragm are cascaded or wound in sequence into each cell and are fixedly assembled with an adhesive tape into the cell; the positive pole and negative pole tabs of three cells are welded respectively together and are then welded in parallel, and lithium-bearing third electrodes are manufactured and are inserted between the sides of the cells; lithium salt containing organic solution is injected from an injection port; a charge-discharge tester is connected for charging and discharging so as to embed lithium in the anode; the third electrodes are removed, and the lithium ion capacitor is manufactured by sealing and suction-packaging. The problem of long lithium embedding term can be effectively solved, the negative pole lithium embedding process is controllable, cycling of the capacitor is facilitated, manufacture cost is low, safety of production process can be improved, other electrode products are not introduced when lithium is added to the negative pole, the technical flow is simplified, and the method is suitable for industrial production.
Description
Technical field
The invention belongs to the manufacturing technology field of lithium-ion capacitor, more particularly to a kind of using the 3rd electrode pair lithium from
The embedding lithium method of sub-capacitor.
Background technology
Lithium-ion capacitor be by the new hybrid energy-storing device of lithium ion battery and double electric layers supercapacitor " inside simultaneously ",
The advantages of high-energy-density of lithium ion battery being had concurrently with ultracapacitor high-specific-power, long-life, in military project space flight, green energy resource
It is with a wide range of applications in field.The embedding lithium method of lithium-ion capacitor typically adopts Fuji Heavy Industries patent of invention at present
Method in CN101138058B, i.e., with lithium metal as lithium source, be collector, lithium metal to be put using the metal forming with through hole
Be placed in the relative position of negative pole, by short circuit lithium metal and negative pole, using the electric potential difference electric discharge between lithium metal and negative pole so as to
Lithium is embedded in negative pole.The method is obtained the large-scale electrical storage device of the high Large Copacity of energy density and output, and with good
Good charge-discharge characteristic, but there is problems with：(1) lithium paper tinsel chemical property is extremely active so that the production of lithium-ion capacitor
High to environmental requirement；(2) used in amounts of lithium will be precisely controlled, and the very few improvement to voltage of lithium amount does not reach expected effect,
Lithium amount is excessive to make monomer there is larger potential safety hazard again, and therefore monomer concordance is poor；(3) lithium-ion capacitor manufacturing process
Complexity, and the cost of raw material, manufacturing cost are high.
Chinese patent CN104681311A is disclosed and is changed to embedding to short circuit negative pole and the short circuit dischange of lithium metal lithium mode
Battery core discharge and recharge in the electrolytic solution, realizes the embedding lithium of negative pole, takes out battery core Reseal fluid injection, and the method can be to lithium-ion electric
The embedding lithium of container monomer negative pole is played not uses lithium metal, the safer purpose of process, but the lithium amount inside electrolyte is less, no
Enough lithiums can be provided to negative pole, to environmental requirement height, complex process, production cost height during Reseal after embedding lithium.
The flat seminar of Zheng Jian has article to report, uses surface to have the nano level metal lithium powder of passivation as lithium source, and hard
Negative pole is made with dry process after charcoal mixing, activated carbon is assembled into lithium-ion capacitor monomer for positive pole.Comparing Fuji Heavy makes
With the structure of lithium metal foil, the lithium-ion capacitor of the structure can be manufactured in drying shed, need not be in glove box
Carry out under severe rugged environment, considerably increase operability.But the price of passivation of lithium powder is high, dry process prepares negative containing passivation of lithium
, after lithium metal is embedded in the material with carbon element on negative pole, there is space, under electrical conductivity in pole complex process, it is impossible to large-scale production on electrode
Drop, active substance easily comes off.
Content of the invention
It is an object of the invention to provide a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor, its feature exists
In comprising the following steps that：
1) it has been attached on the aluminium foil of hole as the slurry of active substance using activated carbon and has made positive pole；Using hard carbon material as work
The slurry of property material has been attached on the Copper Foil of hole makes negative pole；Tri- one polymer of PP/PE/PP is barrier film；By negative pole, barrier film, just
Pole barrier film stacks gradually or is wound into battery core, and blend compounds band is fixed；Lug of the plus plate current-collecting body of three battery cores with positive pole is welded
Be connected together, by the negative collector of three battery cores with pole negative pole tab welding together, then welding in parallel, be welded
Battery core is encapsulated with aluminum-plastic packaging film, stays side for liquid injection port；
2) make containing the 3rd electrode of lithium metal, i.e., adhere to graphite slurry on copper mesh, compress lithium paper tinsel and make；
3) pole piece of the 3rd electrode being inserted respectively between the pole group of parallel connection, i.e., the 3rd electrode is inserted three battery core both sides
Pole piece, be packaged into the battery core for treating fluid injection；The organic solution containing lithium salts is injected from liquid injection port；
4) negative pole, the 3rd electrode are connected charge-discharge test instrument both positive and negative polarity respectively, is charged, completes to the embedding of negative pole
Lithium；The negative pole embedding lithium time is completed for 2min～6min；
5) the 3rd electrode being taken out after completing the embedding lithium of negative pole, is evacuated to 10-20Pa, sealing, complete lithium-ion capacitor monomer
Making；Be not in the space for staying after lithium metal is embedded in negative pole inside lithium-ion capacitor, do not interfere with monomer show.
In the positive pole and negative pole, collector is for there is hole collector.
The lithium salts dissolves in the lithium salts at least of organic solvent for lithium perchlorate, lithium hexafluoro phosphate, LiBF4 etc.
Kind；Organic solvent is in Allyl carbonate, ethylene carbonate, ethyl carbonate, dimethyl carbonate, Ethyl methyl carbonate etc. at least one
Kind.
The step 4) in be charged being to connect negative pole, the 3rd electrode respectively with the both positive and negative polarity of charge-discharge test instrument, with 10C
Electric current charge, charge to 3.0V；
The invention has the beneficial effects as follows compared with prior art, advantages of the present invention is as follows：
(1) by introducing the 3rd electrode come embedding lithium online that negative pole is open, lithium paper tinsel, nano metal lithium are substituted, significantly
Reduce the safety in production process；
(2) by composing in parallel battery core with not homopolarity group, between the group of pole, the 3rd electrode pair negative pole of insert band lithium carries out embedding lithium, greatly
Embedding lithium time improve production efficiency is shortened greatly, the embedding lithium that is open reduces fabrication schedule, reduced the use of production process equipment, right
Reduces cost plays a key effect；
(3) process of intercalation uses the embedding lithium of high current, and negative material adopts indefinite form material with carbon element, can realize quick charge,
While not affecting the cycle life of lithium-ion capacitor.
(4) the 3rd electrodes are taken out after completing embedding lithium, and no unnecessary electrode in finished product does not affect finished appearance situation, simplifies
Technological process, can large-scale industrial production.
Long in order to solve the embedding lithium time, lithium intercalation realizes the controlled circulation for being conducive to capacitor product, is manufactured into
This is too high, can improve the safety of production process, and negative pole does not introduce other electrode products while adding lithium metal not to be affected
Product appearance, simplification of flowsheet, it is adaptable to industrialized production.
Description of the drawings
Fig. 1 is lithium-ion capacitor monomer structure schematic diagram.
Fig. 2 is three-electrode structure schematic diagram.
Fig. 3 is the embedding lithium structural representation for being packaged into lithium-ion capacitor for inserting the 3rd electrode.
Specific embodiment
It is an object of the invention to provide a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor, with reference to reality
Example is applied, further illustrates the present invention.
Embodiment 1
Using the embedding lithium of the 3rd electrode pair lithium-ion capacitor, comprise the following steps that：
1) it has been attached on the aluminium foil of hole as the slurry of active substance using activated carbon and has made positive pole 4；Using hard carbon material as
The slurry of active substance has been attached on the Copper Foil of hole makes negative pole 2；Tri- one polymer of PP/PE/PP is barrier film 5；By negative pole 2, every
Film 5, positive pole 4, barrier film 5 stack gradually or are wound into battery core, and (lithium-ion capacitor monomer as shown in Figure 1 fixed by blend compounds band
Structural representation)；The plus plate current-collecting body of three battery cores is welded together with positive pole ear 6, by the negative collector of three battery cores
Welding together with negative lug 1, then welding in parallel, encapsulates the battery core being welded with aluminum-plastic packaging film, side is stayed for note
Liquid mouth, baking removes moisture and treats fluid injection；
2) make containing the 3rd electrode of lithium metal, i.e., adhere to graphite slurry 10 on copper mesh 9, then press on porous current collector
Lithium paper tinsel 11 is made；(as shown in Figure 2) is connected with the 3rd electrode tabs 8 by connecting line 7；
3) pole piece of the 3rd electrode being inserted respectively between the pole group of parallel connection, i.e., the 3rd electrode is inserted three battery core both sides
Pole piece, be packaged into the battery core (as shown in Figure 3) for treating fluid injection；From liquid injection port injection LiPF6-EC/PC/DEC solution, encapsulation
Treat embedding lithium.
4) with the both positive and negative polarity of charge-discharge test instrument, negative pole, the 3rd electrode are connect respectively, with the electric current charging 30min of 0.01C, so
10C charges to 1.5V afterwards, completes the embedding lithium to negative pole；The negative pole embedding lithium time is completed for 2min～6min；
5) cut off wrapping film after completing the embedding lithium of negative pole, take out the 3rd electrode, be evacuated to 10-20Pa, sealing, complete lithium from
The making of sub-capacitor monomer；The charge-discharge test of 1C, 5C, 10C is carried out to monomer, voltage range is 2.2V～3.8V；Lithium from
Be not in the space for staying after lithium metal is embedded in negative pole inside sub-capacitor, do not interfere with monomer show.
Embodiment 2
In embodiment 1, (3) charge for the first time and are changed to 0.02C charging 30min；
Embodiment 3
In embodiment 1, (3) charge for the first time and are changed to 0.03 charging 30min；
Detection method and result
1st, the specific capacity of capacitor
Using BT2000 electrical property test instrument, embodiment is carried out specific discharge capacity test in 1C, 5C and 10C respectively, knot
Fruit is as shown in table 1；
2nd, capability retention
Respectively embodiment is carried out discharge and recharge in 1C, 5C and 10C respectively, and its capability retention is recorded, as a result as 1 institute of table
Show：
3rd, lithium-inserting amount first
By external connection charge-discharge test instrument, can real-time monitoring capacitor lithium-inserting amount, as a result as shown in table 2.
The capability retention result of 1 discharge and recharge of table
As shown in Table 1, during embedding lithium in the relatively low embodiment of electric current, discharge capacity can be lower first, because under low current,
Negative material surface can form one layer of complete solid electrolyte interface film, can consume a certain amount of lithium.The lithium of the embedding lithium of low range
Ionistor, the compact and complete solid electrolyte interface film of negative material Surface Creation, prevent electrolyte in cyclic process from continuing
Continuing and capacity attenuation being caused with negative reaction, the embedding lithium of small current is conducive to extending the cycle life of lithium-ion capacitor.
As shown in Table 2, the electric current of different embedding lithiums can be had an impact to the lithium-inserting amount first of capacitor, negative material under low current
Surface can consume a part of lithium to form the solid electrolyte interface film of densification, under high current, the solid electricity on negative material surface
Solution matter interfacial film is imperfect not fine and close enough, consumes lithium fewer during embedding lithium than under small current.Fine and close negative material surface solid electrolysis
Matter interfacial film is conducive to improving the cycle life of lithium-ion capacitor.
The lithium-inserting amount result of 2 monitoring capacitor of table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Lithium-inserting amount (mAh/g) first | 339.5±5 | 335.6±6.5 | 330.5±4.5 |
Claims (4)
1. a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor, it is characterised in that comprise the following steps that：
1) it has been attached on the aluminium foil of hole as the slurry of active substance using activated carbon and has made positive pole；Using hard carbon material as active matter
The slurry of matter has been attached on the Copper Foil of hole and has made negative pole；Tri- one polymer of PP/PE/PP is barrier film；By negative pole, barrier film, positive pole every
Film stacks gradually or is wound into battery core, and blend compounds band is fixed；Tab welding of the plus plate current-collecting body of three battery cores with positive pole is existed
Together, by the negative collector of three battery cores with pole negative pole tab welding together, then welding in parallel, the battery core being welded
Being encapsulated with aluminum-plastic packaging film, side is stayed for liquid injection port；
2) make containing the 3rd electrode of lithium metal, i.e., adhere to graphite slurry on copper mesh, compress lithium paper tinsel and make；
3) pole piece of the 3rd electrode is inserted respectively between the pole group of parallel connection, i.e., the pole of the 3rd electrode is inserted three battery core both sides
Piece, is packaged into the battery core for treating fluid injection；The organic solution containing lithium salts is injected from liquid injection port；
4) negative pole, the 3rd electrode are connected charge-discharge test instrument both positive and negative polarity respectively, is charged, complete the embedding lithium to negative pole；Complete
Become the negative pole embedding lithium time for 2min～6min；
5) the 3rd electrode being taken out after completing the embedding lithium of negative pole, is evacuated to 10-20Pa, sealing, complete the system of lithium-ion capacitor monomer
Make；Be not in the space for staying after lithium metal is embedded in negative pole inside lithium-ion capacitor, do not interfere with monomer show.
2. a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor according to claim 1, it is characterised in that institute
It is have hole collector to state collector in positive pole and negative pole.
3. a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor according to claim 1, it is characterised in that institute
State the lithium salts at least one that lithium salts dissolves in organic solvent for lithium perchlorate, lithium hexafluoro phosphate, LiBF4 etc.；Organic solvent
For at least one of Allyl carbonate, ethylene carbonate, ethyl carbonate, dimethyl carbonate, Ethyl methyl carbonate etc..
4. a kind of embedding lithium method for adopting the 3rd electrode pair lithium-ion capacitor according to claim 1, it is characterised in that institute
State step 4) in be charged being to connect negative pole, the 3rd electrode respectively with the both positive and negative polarity of charge-discharge test instrument, filled with the electric current of 10C
Electricity, charges to 3.0V.
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| CN201610985775.8A CN106449126B (en) | 2016-11-09 | 2016-11-09 | A kind of embedding lithium method using the 3rd electrode pair lithium-ion capacitor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107658496A (en) * | 2017-09-29 | 2018-02-02 | 北京卫蓝新能源科技有限公司 | A kind of secondary cell and preparation method thereof |
| CN108155420A (en) * | 2017-12-27 | 2018-06-12 | 成都市银隆新能源有限公司 | A kind of battery core, battery and battery application method |
| CN108539124A (en) * | 2017-03-01 | 2018-09-14 | 北京卫蓝新能源科技有限公司 | With the secondary cell and preparation method thereof for mending lithium electrode |
| CN111415824A (en) * | 2020-03-13 | 2020-07-14 | 上海应用技术大学 | External parallel type lithium pre-embedding method of lithium ion capacitor |
| CN113054162A (en) * | 2021-03-15 | 2021-06-29 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN114497464A (en) * | 2022-01-29 | 2022-05-13 | 合肥国轩高科动力能源有限公司 | Lithium ion battery positive electrode pulse pre-lithiation method and lithium ion battery |
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| CN108539124A (en) * | 2017-03-01 | 2018-09-14 | 北京卫蓝新能源科技有限公司 | With the secondary cell and preparation method thereof for mending lithium electrode |
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| CN111415824A (en) * | 2020-03-13 | 2020-07-14 | 上海应用技术大学 | External parallel type lithium pre-embedding method of lithium ion capacitor |
| CN113054162A (en) * | 2021-03-15 | 2021-06-29 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN114497464A (en) * | 2022-01-29 | 2022-05-13 | 合肥国轩高科动力能源有限公司 | Lithium ion battery positive electrode pulse pre-lithiation method and lithium ion battery |
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