CN109659140A - Lithium ion super capacitor cathode pre-embedding lithium method - Google Patents
Lithium ion super capacitor cathode pre-embedding lithium method Download PDFInfo
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- CN109659140A CN109659140A CN201710940716.3A CN201710940716A CN109659140A CN 109659140 A CN109659140 A CN 109659140A CN 201710940716 A CN201710940716 A CN 201710940716A CN 109659140 A CN109659140 A CN 109659140A
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 53
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000003990 capacitor Substances 0.000 title claims abstract description 41
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 38
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003792 electrolyte Substances 0.000 claims abstract description 19
- 150000002642 lithium compounds Chemical class 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910021385 hard carbon Inorganic materials 0.000 claims description 15
- 229910001290 LiPF6 Inorganic materials 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- IDBFBDSKYCUNPW-UHFFFAOYSA-N lithium nitride Chemical compound [Li]N([Li])[Li] IDBFBDSKYCUNPW-UHFFFAOYSA-N 0.000 claims description 4
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- GUWHRJQTTVADPB-UHFFFAOYSA-N lithium azide Chemical compound [Li+].[N-]=[N+]=[N-] GUWHRJQTTVADPB-UHFFFAOYSA-N 0.000 claims description 3
- 229910003002 lithium salt Inorganic materials 0.000 claims description 3
- 159000000002 lithium salts Chemical class 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 239000010406 cathode material Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 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
- 229920000767 polyaniline Polymers 0.000 claims description 2
- 229920000128 polypyrrole Polymers 0.000 claims description 2
- 229920000123 polythiophene Polymers 0.000 claims description 2
- 229910021384 soft carbon Inorganic materials 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 230000002427 irreversible effect Effects 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 150000001450 anions Chemical class 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 238000001994 activation Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- YZSKZXUDGLALTQ-UHFFFAOYSA-N [Li][C] Chemical compound [Li][C] YZSKZXUDGLALTQ-UHFFFAOYSA-N 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000002687 intercalation Effects 0.000 description 3
- 238000009830 intercalation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 229910013191 LiMO2 Inorganic materials 0.000 description 2
- 229910013100 LiNix Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910010710 LiFePO Inorganic materials 0.000 description 1
- -1 LiFePO4 Chemical class 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- 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
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Invention describes a kind of methods of the pre- embedding lithium of lithium ion super capacitor cathode.Using the anode containing mass content 2-15% richness lithium compound, with can embedding lithium cathode and diaphragm assembling lithium ion super capacitor be placed in a container, electrolyte is injected into container, charge to lithium ion super capacitor, to can embedding lithium cathode realization theory can embedding lithium quality 30-90% pre- lithium-inserting amount.The Irreversible Adsorption that pre- embedding lithium can prevent in charge and discharge process the reduction of ontology ion concentration and anion in electrolyte in anode to a certain extent is carried out to cathode, to achieve the purpose that the charge-discharge performance for improving lithium ion super capacitor.
Description
Technical field
The present invention relates to a kind of methods of the pre- embedding lithium of lithium ion super capacitor cathode, belong to electrochemical energy storage technology neck
Domain.
Background technique
In recent years, a kind of electrochemistry hybrid super capacitor being made of electrical double layer capacitor electrodes and electrode for secondary battery
As research and development focus, which uses is formed electric double layer and is carried out energy storage based on interface charge adsorption desorption
Carbon material, cathode use carried out based on lithium ion intercalation/deintercalation energy storage metal oxide or can embedding lithium carbonaceous material.Cause
The energy storage mechnism of its cathode is also referred to as such as lithium-ion battery system: lithium ion super capacitor.Generally,
In lithium ion super capacitor system, for embedding cathode of lithium, all exist in first charge-discharge process a degree of
Irreversible embedding lithium, this electrochemical behavior will lead to the electrolysis solution anion of identical molal quantity in active carbon positive electrode surface can not
Inverse absorption, eventually leads to the reduction of electrolyte ion concentration and the decaying of electrode capacity, influences lithium ion super capacitor system
Charge-discharge performance.It can be solved the above problems, while can reduced negative by carrying out the pre- embedding lithium of certain depth to cathode
The intercalation potential of pole and the current potential for being always maintained at reduction, this will improve the charge-discharge performance of lithium ion super capacitor, as efficiency,
Cyclical stability and large current density electrical characteristics etc..
Currently, the method for carrying out pre- embedding lithium to cathode is mainly: using lithium metal as third pole, passing through the method for external short circuit
Pre- embedding lithium is carried out to cathode, there are many disadvantages for this method: firstly, metal introduces lithium-ion capacitor system meeting band as a pole
Carry out safety problem；Secondly, battery assembly manufacturing process is complicated, to environmental requirement harshness；Again, external short circuit process of intercalation is not easily-controllable
System；Finally, electrolyte and diaphragm that lithium-ion capacitor system need to nearly double etc. are to be used for pre- embedding lithium.
In addition, also having been reported that (has certain irreversible de- lithium property by introducing nonmetallic lithium third pole in anode
Rich lithium compound, such as LiFePO4、LiMO2, wherein M=Co, Ni, Mn etc. and LiNixZ1-xO2Wherein Z=Mn, Co, Fe, La,
V, Al, Mg, Zn, 0<x>1) method carries out pre- embedding lithium to cathode, the disadvantages of the method are as follows embedding with the lithium in richness lithium compound
Enter cathode, inactive product can be generated or have unreacted rich lithium compound, these substances, which remain in anode, will affect
The chemical property of lithium ion super capacitor.
Summary of the invention
The shortcomings that present invention is in order to overcome the prior art provides a kind of pre- embedding lithium side of lithium ion super capacitor cathode
Method the purpose is to solve the problems, such as that lithium ion super capacitor electrolyte intermediate ion concentration decline amplitude is big, while further changing
The charge-discharge characteristic of kind lithium ion super capacitor, such as efficiency, capacity, large current density electrical characteristics and cyclical stability.
In order to solve the above-mentioned technical problem the improvement with realization to lithium ion super capacitor performance, tool proposed by the present invention
Body technique scheme is as follows:
Using the anode containing mass content 2-15% richness lithium compound, with can embedding lithium cathode and diaphragm assemble lithium ion
Supercapacitor is placed in a container, and electrolyte is injected into container, is charged to lithium ion super capacitor, to can be embedding
The cathode realization theory of lithium can embedding lithium quality 30-90% pre- lithium-inserting amount.
Rich lithium compound is one of lithium nitride, Lithium Azide or two kinds or more.
Charge condition is constant-current charge: charging current 0.01-3mA, time 5-300h；Positive electrode and negative electrode mass ratio (1-
4):(1-3)。
Positive electrode is one of porous carbon materials or conducting polymer or two kinds or more；
Porous carbon materials are one of activated carbon fibre, active carbon powder, carbon nanotube, graphene or two kinds or more；
Conducting polymer is polyaniline, gathers to one of benzene, polypyrrole, polythiophene and its derivative or two kinds or more；
Can embedding lithium titanate cathode material be soft carbon, hard carbon, graphite, carbonaceous mesophase spherules, lithium titanyl complex chemical compound, titanium dioxide
One of tin, molybdenum oxide or two kinds or more；
Electrolyte is LiClO4、LiPF6、LiBF4One of or two kinds or more lithium salts organic solution.
The solvent of electrolyte is the EC:DEC of volume ratio 1:1.
At lithium ion super capacitor in the activation process of its first circle realization pair is made after electrode with cathode direct-assembling
The pre- embedding lithium of cathode.Product after carrying out irreversible disengaging is nitrogen, is deposited in the airbag of soft-package battery, will after first circle activation
Gas extraction, completes battery seal.
Beneficial outcomes of the invention are as follows:
(1) the method ratio of the pre- embedding lithium of lithium metal is directlyed adopt with cathode: the packaging technology of lithium-ion capacitor is simplified,
Security performance be improved significantly；Rich lithium compound is entrained in positive electrode, can be achieved with by the activation of first circle to cathode
Pre- embedding lithium, it is more safer than the method with lithium metal external short circuit, reliable, easily-controllable；Lithium ion super can be obviously reduced in the present invention
The dosage of capacitor diaphragm and electrolyte, reduces cost；
(2) and equally using LiFePO4、LiMO2、LiNixZ1-xO2It is entrained in anode Deng richness lithium compound, passes through activation
Complete the method ratio of the pre- embedding lithium of cathode: method of the invention will not generate lithium compound residual after completing pre- embedding lithium after activation
In anode, the decaying of positive electrode capacity not will lead to.
(3) ontology ion concentration in electrolyte can be prevented in charge and discharge process to a certain extent by carrying out pre- embedding lithium to cathode
Reduction and anion anode Irreversible Adsorption, thus reach improve lithium ion super capacitor charge-discharge performance mesh
's.
Detailed description of the invention
Fig. 1 is the photo of the lithium ion super capacitor device of assembling
Fig. 2 is that anode activated charcoal after embedding lithium depth pre- to cathode hard carbon reaches 80%, the potential change of cathode hard carbon are bent
Line and hard carbon // active carbon lithium ion super capacitor charging and discharging curve.
Fig. 3 is that anode activated charcoal after embedding lithium depth pre- to cathode hard carbon reaches 60%, the potential change of cathode hard carbon are bent
Line and hard carbon // active carbon lithium ion super capacitor charging and discharging curve；.
Fig. 4 is not carry out the anode activated charcoal of pre- embedding lithium, the potential change curve of cathode hard carbon and hard to cathode hard carbon
Carbon // active carbon lithium ion super capacitor charging and discharging curve.
Specific embodiment
Technical solution of the present invention is not limited to the specific embodiment of act set forth below, further include each specific embodiment it
Between any combination.
Embodiment 1:
The lithium nitride that mass percent is 11%, using hard carbon as cathode, the LiPF6/EC of 1M are added in active carbon anode:
DEC (volume ratio 1:1) is electrolyte, and cellgard2400 is that diaphragm assembles lithium ion super capacitor.By the charging of first circle,
Depth, which is 80% pre- embedding lithium, to be realized to cathode, the voltage range of the capacitor is 2-4.2V, and charging and discharging curve symmetry is good (such as
Shown in attached drawing 2), for coulombic efficiency close to 100%, specific energy reaches 31Wh/kg.
Embodiment 2:
The lithium nitride that mass percent is 6%, using hard carbon as cathode, the LiPF6/EC of 1M are added in active carbon anode:
DEC (volume ratio 1:1) is electrolyte, and cellgard2400 is that diaphragm assembles lithium ion super capacitor.By the charging of first circle,
Depth, which is 60% pre- embedding lithium, to be realized to cathode, the voltage range of the capacitor is 2-4.2V, and charging and discharging curve symmetry is good (such as
Shown in attached drawing 3), for coulombic efficiency close to 100%, specific energy reaches 25Wh/kg, and the discharge capacity under 30C discharge-rate is positively retained at
80% or more under 1C discharge-rate.
Embodiment 3:
The Lithium Azide that mass percent is 15%, using hard carbon as cathode, the LiPF6/ of 1M are added in active carbon anode
EC:DEC (volume ratio 1:1) is electrolyte, and cellgard2400 is that diaphragm assembles lithium ion super capacitor.Pass through filling for first circle
Electricity realizes that depth is 85% pre- embedding lithium to cathode, and the voltage range of the capacitor is 2.8-4.2V, charging and discharging curve symmetry
Good, for coulombic efficiency close to 100%, specific energy reaches 17Wh/kg.
Comparative example 1:
Rich lithium compound is not added in active carbon anode, using hard carbon as cathode, the LiPF6/EC:DEC (volume ratio 1:1) of 1M
For electrolyte, cellgard2400 is that diaphragm assembles lithium ion super capacitor.It is to be filled in 2.8-4.2V in voltage range
Discharge test (as shown in Fig. 4), coulombic efficiency 75%, specific energy are only 10Wh/kg.
Compared with attached drawing 4, use rich lithium compound cathode is carried out respectively depth for 80% (as shown in Fig. 2) and
After the pre- embedding lithium of 60% (as shown in Fig. 3), cathode potential is reduced, so that anode is in its stable potential region, and
Conducive to the performance of positive electrode capacity, therefore entire device energy density and cycle performance are improved and improve.
Comparative example 2:
The LiFePO that mass percent is 5% is added in active carbon anode4, using hard carbon as cathode, the LiPF6/EC of 1M:
DEC (volume ratio 1:1) is electrolyte, and cellgard2400 is that diaphragm assembles lithium ion super capacitor.By the charging of first circle,
Pre- embedding lithium is carried out to cathode, the voltage range of the capacitor is 2.8-4.2V, and specific energy only has 10Wh/kg.
Claims (6)
1. lithium ion super capacitor cathode pre-embedding lithium method, it is characterised in that:
Using the anode containing mass content 2-15% richness lithium compound, with can embedding lithium cathode and diaphragm assemble lithium ion super
Capacitor is placed in a container, and electrolyte is injected into container, is charged to lithium ion super capacitor, to can embedding lithium
Cathode realization theory can embedding lithium quality 30-90% pre- lithium-inserting amount.
2. according to cathode pre-embedding lithium method described in claim 1, it is characterised in that: rich lithium compound is lithium nitride, Lithium Azide
One of or two kinds or more.
3. according to cathode pre-embedding lithium method described in claim 1, it is characterised in that: charge condition is constant-current charge: charging current
0.01-3mA, time 5-300h；Positive electrode and negative electrode mass ratio (1-4): (1-3).
4. according to the cathode pre-embedding lithium method of claim 1 or 3, it is characterised in that: positive electrode is porous carbon materials or leads
One of electric polymer or two kinds or more；
Porous carbon materials are one of activated carbon fibre, active carbon powder, carbon nanotube, graphene or two kinds or more；It is conductive
Polymer is polyaniline, gathers to one of benzene, polypyrrole, polythiophene and its derivative or two kinds or more；
Can embedding lithium titanate cathode material be soft carbon, hard carbon, graphite, carbonaceous mesophase spherules, lithium titanyl complex chemical compound, stannic oxide, oxygen
Change one of molybdenum or two kinds or more；
Electrolyte is with LiClO4、LiPF6、LiBF4One of or two kinds or more lithium salts organic solution.
5. according to cathode pre-embedding lithium method described in claim 4, it is characterised in that:
The solvent of electrolyte is EC and DEC (volume ratio 1:1), and lithium salt is 1mol/L in electrolyte.
6. according to cathode pre-embedding lithium method described in claim 1, it is characterised in that: used diaphragm is celgard2400.
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| CN201710940716.3A CN109659140A (en) | 2017-10-11 | 2017-10-11 | Lithium ion super capacitor cathode pre-embedding lithium method |
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Cited By (4)
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|---|---|---|---|---|
| EP3848949A1 (en) * | 2020-01-08 | 2021-07-14 | Fundación Centro de Investigación Cooperativa de Energías Alternativas, CIC Energigune Fundazioa | Metal ion capacitor based on hard carbon as negative electrode and a mixture of activated carbon and sacrificial salt as the positive electrode |
| CN113593928A (en) * | 2021-08-03 | 2021-11-02 | 北京蒙京石墨新材料科技研究院有限公司 | Lithium ion capacitor and pre-lithium embedding method thereof |
| CN114243090A (en) * | 2021-12-17 | 2022-03-25 | 中国科学院电工研究所 | Lithium pre-embedding device and method of lithium ion energy storage device |
| CN114823162A (en) * | 2022-05-18 | 2022-07-29 | 中国第一汽车股份有限公司 | Method for widening voltage range of lithium ion capacitor |
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| WO2021140149A1 (en) * | 2020-01-08 | 2021-07-15 | Fundación Centro De Investigación Cooperativa De Energías Alternativas Cic Energigune Fundazioa | Metal ion capacitor based on hard carbon as negative electrode and a mixture of activated carbon and sacrificial salt as the positive electrode |
| CN114930477A (en) * | 2020-01-08 | 2022-08-19 | 可替代能源Cic研究合作中心基金会 | Metal ion capacitor based on hard carbon as negative electrode and a mixture of activated carbon and sacrificial salt as positive electrode |
| US12136515B2 (en) | 2020-01-08 | 2024-11-05 | Fundacion Centro De Investigacion Cooperativa De Energias Alternativas Cic Energigune Fundazioa | Metal ion capacitor based on hard carbon as negative electrode and a mixture of activated carbon and sacrificial salt as the positive electrode |
| CN113593928A (en) * | 2021-08-03 | 2021-11-02 | 北京蒙京石墨新材料科技研究院有限公司 | Lithium ion capacitor and pre-lithium embedding method thereof |
| CN114243090A (en) * | 2021-12-17 | 2022-03-25 | 中国科学院电工研究所 | Lithium pre-embedding device and method of lithium ion energy storage device |
| CN114243090B (en) * | 2021-12-17 | 2024-09-10 | 中国科学院电工研究所 | Pre-lithium intercalation device and method for lithium ion energy storage device |
| CN114823162A (en) * | 2022-05-18 | 2022-07-29 | 中国第一汽车股份有限公司 | Method for widening voltage range of lithium ion capacitor |
| CN114823162B (en) * | 2022-05-18 | 2024-06-14 | 中国第一汽车股份有限公司 | Method for widening voltage range of lithium ion capacitor |
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Application publication date: 20190419 |