EP3895191A1 - Matériau poreux fonctionnalisé et utilisation comme électrode de pseudo-supercondensateur - Google Patents
Matériau poreux fonctionnalisé et utilisation comme électrode de pseudo-supercondensateurInfo
- Publication number
- EP3895191A1 EP3895191A1 EP19845820.0A EP19845820A EP3895191A1 EP 3895191 A1 EP3895191 A1 EP 3895191A1 EP 19845820 A EP19845820 A EP 19845820A EP 3895191 A1 EP3895191 A1 EP 3895191A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- redox
- substrate
- carbon
- groups
- monolayer
- 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.)
- Withdrawn
Links
- 239000011148 porous material Substances 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000002356 single layer Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 39
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- -1 ethynyl-phenyl Chemical group 0.000 claims description 15
- 238000007306 functionalization reaction Methods 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 238000012546 transfer Methods 0.000 claims description 10
- 241000234282 Allium Species 0.000 claims description 4
- 235000002732 Allium cepa var. cepa Nutrition 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 4
- 229910021397 glassy carbon Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 19
- 239000003792 electrolyte Substances 0.000 description 16
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 14
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N Vilsmeier-Haack reagent Natural products CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N dichloromethane Natural products ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 7
- 239000003575 carbonaceous material Substances 0.000 description 5
- 238000002484 cyclic voltammetry Methods 0.000 description 5
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 229910021642 ultra pure water Inorganic materials 0.000 description 5
- 239000012498 ultrapure water Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- SFDZETWZUCDYMD-UHFFFAOYSA-N monosodium acetylide Chemical compound [Na+].[C-]#C SFDZETWZUCDYMD-UHFFFAOYSA-N 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010511 deprotection reaction Methods 0.000 description 2
- 239000012954 diazonium Substances 0.000 description 2
- 238000000840 electrochemical analysis Methods 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002094 self assembled monolayer Substances 0.000 description 2
- 239000013545 self-assembled monolayer Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001075 voltammogram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000005206 1,2-dihydroxybenzenes Chemical class 0.000 description 1
- HZNVUJQVZSTENZ-UHFFFAOYSA-N 2,3-dichloro-5,6-dicyano-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O HZNVUJQVZSTENZ-UHFFFAOYSA-N 0.000 description 1
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- 102100028121 Fos-related antigen 2 Human genes 0.000 description 1
- 101001059934 Homo sapiens Fos-related antigen 2 Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001356 alkyl thiols Chemical class 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- CIZVQWNPBGYCGK-UHFFFAOYSA-N benzenediazonium Chemical compound N#[N+]C1=CC=CC=C1 CIZVQWNPBGYCGK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 239000011852 carbon nanoparticle Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- BOXSCYUXSBYGRD-UHFFFAOYSA-N cyclopenta-1,3-diene;iron(3+) Chemical compound [Fe+3].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 BOXSCYUXSBYGRD-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011263 electroactive material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003818 flash chromatography Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000001566 impedance spectroscopy Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 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
- H01G11/46—Metal oxides
-
- 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
Definitions
- the present invention relates to a porous material functionalized by redox groups grafted covalently to the surface of a substrate having microporosity and / or mesoporosity, for example made of carbonaceous material.
- the present invention also relates to the use of such a material as a pseudo-supercapacitor electrode.
- pseudo-supercapacitor or redox supercapacitor is meant, within the meaning of the present invention, a supercapacitor which uses rapid and reversible chemical reactions on the surface or near the surface of the electrodes, to store energy.
- the charging / discharging process (and therefore the storage of energy) is not purely capacitive! 1 ⁇ 121 : it involves both capacitive and faradaic processes.
- supercapacitor is meant, within the meaning of the present invention, a
- the electric camp causes the electrolyte ions to move towards or from the surface of the electrodes without redox reaction. Since the ions only adsorb or desorb on the electrodes without any chemical reaction, a super capacitor can be charged or discharged very quickly. On the other hand, the super-capacitor has the disadvantage of only charging ions on the surface of the electrodes, and not energy. Energy storage is purely capacitive.
- electrochemical supercapacitors because of their highly active surfaces and the numerous possibilities for chemical functionalization 11 ' 2 ' 3 ' 4 ' 5 ' 6 ' 7 '81 .
- the present invention relates to a functionalized porous material comprising a substrate having a microporosity and / or a mesoporosity and redox groups grafted covalently to the surface of said substrate, forming a functionalization layer, said material being characterized in that the redox groups are grafted in a monolayer covalently to the surface of said substrate, so that the functionalization layer is a monolayer having a coverage rate of redox entities greater than or equal to 10 11 mol / cm.
- a monolayer with a coverage rate of redox entities greater than or equal to 10-11 mol / cm 2 has the advantage of being dense and flexible.
- the monolayer thus obtained is both flexible, dense, and has a controlled distance between the redox entities and the substrate. This monolayer remains sufficiently porous to allow the passage of ions from the electrolyte to the substrate (that is to say the material before covalent grafting of the redox entities) by its flexible nature.
- the charge transfer speed of the redox entities is very fast due to its so-called external sphere nature.
- the invention allows a maximization of the number of grafted redox entities, a very fast charge transfer speed while retaining the intrinsic capacity of the porous substrate.
- the redox groups are chosen in order to keep their properties in various electrolytes, allowing a final optimization of the effective capacity and the charging time.
- the redox groups can be groups having fast charge transfer kinetics.
- a kinetics being characterized by a high value of the heterogeneous constant of standard electronic transfer ks in solution
- the redox groups can be Cn alkyl-ferrocene groups.
- porous carbon substrates As a substrate which can be used in the context of the present invention, mention may in particular be made of porous carbon substrates, or a metal oxide.
- a porous carbon substrate it may advantageously be chosen from pyrolytic graphite, vitreous carbon, graphite, graphene and its derivatives, carbon powders, carbon onions or carbon nanotubes.
- a metal oxide substrate it can be advantageously chosen from manganese dioxide, or ruthenium dioxide.
- the present invention also relates to the use of the material according to the invention as a pseudo-supercapacitor electrode.
- FIG. 1 shows the general process for modifying a substrate into porous carbon to obtain a functionalized porous material according to the present invention.
- the resulting (11 -azidoundecyl) ferrocene monolayer, where n 9, covalently attached to the porous carbon substrate;
- FIG. 2A shows the comparative evolutions of the current as a function of the potential obtained for a naked pyrolytic graphite (PG) electrode and an electrode according to the invention in pyrolytic graphite modified by the grafting of a FcC11 monolayer in a solution of (CFI2CI2 + 0 , 1 mol L-1 nBu4NPF6 at 0.1 V s-1 in accordance with Example 1;
- - Fig. 2B shows voltammograms obtained with the PGE electrodes of Example 2.
- FIG. 3 shows the comparative evolution of real (see curves in Figure a) and complex (see curves in Figure b) as a function of frequency for the FcC11 monolayer on a PG electrode in CFI2CI2 + 0.1 mol L -1 nBu4NPF6, with two different fixed potentials, - 0.08 V () and 0.30 V (O) vs FcMeOH / FcMeOH +,
- TIPS-Eth-ArN2 tri (isopropylsilyl) ethynyl) benzenediazonium tetrafluoroborate
- TBAF tetra-n-butylammonium fluoride
- Ethynylferrocene marketed by MERCK under the name "ethynylferrocene (CAS: 1271 -47-2)";
- acetonitrile marketed by MERCK® under the trade name "Acetonitrile, anhydrous 99.8% (CAS: 75-05-8)";
- dichloromethane marketed by MERCK® under the trade name "Dichloromethane, anhydrous, 399.8% > , containing 40-150 ppm amylene as stabilizer (CAS: 75-09-2)";
- lithium perchlorate marketed by the company MERCK® under the trade name “Lithium perchlorate 99.99% trace metals basis (CAS: 7791-03-9) ";
- PGE Pyrolytic graphite electrodes
- the PGE electrodes are very porous, with a pore size distribution ranging from micro to nanometer; they allow detailed kinetic studies.
- PGE Pyrolytic graphite
- a conventional configuration with three electrodes comprising the modified substrate (in accordance with the invention and in accordance with the prior art) as working electrode, a platinum sheet as auxiliary electrode, and a calomel electrode. saturated (hereinafter referred to by the acronym SCE) as a reference.
- SCE saturated
- Cyclic voltammetry and impedance spectroscopy measurements are carried out using non-grafted pyrolytic graphite (PGE) electrodes and functionalized by grafting in accordance with the functionalization process described in Example 1.
- PGE pyrolytic graphite
- Pyrolytic graphite (PGE) electrodes are functionalized by electrochemical reduction of aryl diazonium ions, which leads to the formation of phenyl radicals which are grafted onto the surface of the 17 ⁇ 81 electrode. To do this, we proceed according to the following steps:
- the PGE electrodes are successively polished with abrasive paper made of silicon carbide 2400 and 4000 from Struers and ultra-pure water, then rinsed with ultra-pure water and acetone;
- a protected ethynyl-aryldiazonium salt carrying a solid tri (alkyl) silyl group (4- (tri (isopropylsilyl) ethynyl) benzynediazonium) benzenediazonium) is grafted onto the surface of the electrode 121 ⁇ 22 ' 271 ArN2 + BF4) This limits grafting on the carbon surface to a single layer and protects the ethynyl functional group during electrochemical grafting;
- the distance between the redox groups is finally controlled by the size of the protective group which leaves a sort of imprint in the layer after deprotection.
- a tri (isopropyl) silyl group bulky which is a good compromise for obtaining a dense monolayer but sufficiently porous for good mass transport to the substrate
- the Cn long chain alkyl ferrocene is attached to the platform formed in the first step.
- the ferrocene / ferrocenium redox couple has very fast charge transfer kinetics with an external sphere character. This is an important characteristic for this study because their rapid electrochemical behavior is compatible with many solvents or
- the Cn alkyl ferrocene was grafted onto a surface of pyrolytic graphite (PG electrode) but the approach can be used on many different carbon materials, such as vitreous carbon, graphite or carbon nanotubes [7 ' 8] .
- the electrodes can also be functionalized by an alternative method.
- the electrodes are grafted with (tridec-12-ynyl) ferrocene or ethynylferrocene, in the presence of copper (I).
- the experimental conditions for generating copper (I) are the same as those for "Click Chemistry".
- the characteristics of the electrodes were studied simultaneously by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).
- the cyclic voltammetry provides information corresponding to the transferred charges [2 ' 17 ' 51 or to the active redox monolayers. If these quantities are less detailed than the corresponding differential data extracted by EIS, they are also closer to the charge storage density required by the users in a real application f 2 ⁇ 16 !
- the non-functionalized PGE electrodes were successively polished with abrasive paper made of silicon carbide 2400 and 4000 from the company Struers® and ultra-pure water, then rinsed with ultra-pure water and acetone (according to the same process as that used in Example 1 for the functionalized electrodes).
- cyclic voltammograms of modified surfaces were acquired at different scanning speeds in each electrolytic solution in order to determine the potential at maximum current (faradaic process) and to compare the different methods used to determine the capacity of an equivalent system [2 ⁇ 171 .
- the frequencies vary from 10 kHz to 0.01 Hz, with an amplitude of ⁇ 10 mV.
- the Lissajous curves were monitored at each frequency to ensure that no change in the linearity of the circuit occurred during the experiment.
- the grafted layer has very fast electron transfer kinetics making it possible to easily increase the charge density in devices such as pseudo-supercapacitors, the charging time being limited by the resistance of the electrolyte.
- EXAMPLE 3 Comparative evaluation of the electrochemical properties of the functionalized electrode according to the invention in different electrolytes
- Example 1 Electrochemical studies of the functionalized electrode according to the invention obtained in Example 1 were carried out in different electrolytes (0.1 mol L-1). The capacities and the characteristic times obtained are reported in Table 1 below.
- Table 1 shows that, for all media (CH2CI2, EtOH, ACN, DMSO, PC or water), the modified electrode / electrolyte behaves like an RC circuit.
- R is not affected by the presence of the faradaic process indicating that the charging time is controlled by the ohmic drop and not by the charge transfer kinetics. It should also be noted that in addition to variations in R, the apparent capacity when the faradaic process is involved changes a lot with the electrolyte. From a practical point of view, ethanol or acetonitrile (ACN) could be considered as the best compromise between the largest capacity and the shortest charging times. In these electrolytes, the capacity is only slightly lower, not more than 30% smaller than in CH2CI2, but with a much shorter charging time (about 10 times faster). If water is necessary for the application, the modification is always valid because it allows a significant increase in the charge density with a short response time.
- ACN acetonitrile
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1872983A FR3090187B1 (fr) | 2018-12-14 | 2018-12-14 | Matériau poreux fonctionnalisé et utilisation comme électrode de pseudo-supercondensateur |
PCT/FR2019/053069 WO2020120922A1 (fr) | 2018-12-14 | 2019-12-13 | Matériau poreux fonctionnalisé et utilisation comme électrode de pseudo-supercondensateur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3895191A1 true EP3895191A1 (fr) | 2021-10-20 |
Family
ID=67999684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19845820.0A Withdrawn EP3895191A1 (fr) | 2018-12-14 | 2019-12-13 | Matériau poreux fonctionnalisé et utilisation comme électrode de pseudo-supercondensateur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3895191A1 (fr) |
FR (1) | FR3090187B1 (fr) |
WO (1) | WO2020120922A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112366097B (zh) * | 2020-12-14 | 2022-05-03 | 山东精工电子科技有限公司 | 提高石墨烯基超级电容器性能的全碳电极的制备方法 |
CN114709406B (zh) * | 2022-05-19 | 2023-07-25 | 中国电建集团成都勘测设计研究院有限公司 | 富硫共聚物材料、锂硫电池正极材料及其制备方法和应用 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002367404A1 (en) * | 2001-12-28 | 2003-07-24 | University And Community College System Of Nevada On Behalf Of The University Of Nevada, Reno | Redox-switchable materials |
WO2013142994A1 (fr) * | 2012-03-30 | 2013-10-03 | Valorisation-Recherche, Limited Partnership | Liquides ioniques à activité redox |
CN104900424B (zh) * | 2015-06-12 | 2017-05-03 | 扬州大学 | 超分子石墨烯负载四氧化三铁自组装体的制备方法 |
FR3038145B1 (fr) * | 2015-06-23 | 2017-07-21 | Centre Nat Rech Scient | Procede de preparation d'une electrode composite |
EP3369123A4 (fr) * | 2015-10-27 | 2019-09-04 | Massachusetts Institute Of Technology | Dispositifs ou systèmes électrochimiques comprenant des électrodes restructurées redox et leurs utilisations |
WO2017191481A1 (fr) * | 2016-05-06 | 2017-11-09 | Centre National De La Recherche Scientifique (Cnrs) | Liquides ioniques électroactifs et substrats modifiés en surface contenant ceux-ci |
-
2018
- 2018-12-14 FR FR1872983A patent/FR3090187B1/fr not_active Expired - Fee Related
-
2019
- 2019-12-13 EP EP19845820.0A patent/EP3895191A1/fr not_active Withdrawn
- 2019-12-13 WO PCT/FR2019/053069 patent/WO2020120922A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3090187A1 (fr) | 2020-06-19 |
FR3090187B1 (fr) | 2021-06-25 |
WO2020120922A1 (fr) | 2020-06-18 |
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