KR102194179B1 - 활물질 및 이의 전구체의 혼합물을 포함하는 전해액 - Google Patents
활물질 및 이의 전구체의 혼합물을 포함하는 전해액 Download PDFInfo
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- KR102194179B1 KR102194179B1 KR1020200037077A KR20200037077A KR102194179B1 KR 102194179 B1 KR102194179 B1 KR 102194179B1 KR 1020200037077 A KR1020200037077 A KR 1020200037077A KR 20200037077 A KR20200037077 A KR 20200037077A KR 102194179 B1 KR102194179 B1 KR 102194179B1
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 54
- 239000000203 mixture Substances 0.000 title abstract description 12
- 239000000463 material Substances 0.000 title abstract description 8
- 239000002243 precursor Substances 0.000 title abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 47
- 239000008151 electrolyte solution Substances 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- CSFWPUWCSPOLJW-UHFFFAOYSA-N hydroxynaphthoquinone Natural products C1=CC=C2C(=O)C(O)=CC(=O)C2=C1 CSFWPUWCSPOLJW-UHFFFAOYSA-N 0.000 abstract description 13
- 150000004340 hydroxynaphthoquinones Chemical class 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 description 31
- 239000000243 solution Substances 0.000 description 24
- 238000002484 cyclic voltammetry Methods 0.000 description 23
- 239000011149 active material Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 11
- 238000002835 absorbance Methods 0.000 description 10
- 238000006479 redox reaction Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 8
- -1 methoxy, ethoxy, propoxy Chemical group 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000009257 reactivity Effects 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910021607 Silver chloride Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- UUWCBFKLGFQDME-UHFFFAOYSA-N platinum titanium Chemical compound [Ti].[Pt] UUWCBFKLGFQDME-UHFFFAOYSA-N 0.000 description 4
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920000557 Nafion® Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
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- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 3
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- XOJVVFBFDXDTEG-UHFFFAOYSA-N Norphytane Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004693 Polybenzimidazole Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- KIWQCVMQMWPCJB-UHFFFAOYSA-N [Ti].[Ir]=O Chemical compound [Ti].[Ir]=O KIWQCVMQMWPCJB-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000002144 chemical decomposition reaction Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000006471 dimerization reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 229910021397 glassy carbon Inorganic materials 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229920001643 poly(ether ketone) Polymers 0.000 description 2
- 229920002480 polybenzimidazole Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000000276 potassium ferrocyanide Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- DZTIFMWYYHCREC-UHFFFAOYSA-N 2,4-dichloropyrimidine-5-carbonyl chloride Chemical compound ClC(=O)C1=CN=C(Cl)N=C1Cl DZTIFMWYYHCREC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 150000001450 anions Chemical group 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 150000008365 aromatic ketones Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920006030 multiblock copolymer Polymers 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920013637 polyphenylene oxide polymer Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- 238000006722 reduction reaction Methods 0.000 description 1
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- 235000010265 sodium sulphite Nutrition 0.000 description 1
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- 238000004381 surface treatment Methods 0.000 description 1
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- 229920002554 vinyl polymer Polymers 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C50/00—Quinones
- C07C50/26—Quinones containing groups having oxygen atoms singly bound to carbon atoms
- C07C50/32—Quinones containing groups having oxygen atoms singly bound to carbon atoms the quinoid structure being part of a condensed ring system having two rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/44—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing doubly-bound oxygen atoms bound to the carbon skeleton
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9008—Organic or organo-metallic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
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- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/08—Fuel cells with aqueous electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/04—One of the condensed rings being a six-membered aromatic ring
- C07C2602/10—One of the condensed rings being a six-membered aromatic ring the other ring being six-membered, e.g. tetraline
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
도 2는 실험예 1에서 확인한 NQ-S, NQ-OH 등의 CV 곡선, 흡광도 및 반응 메커니즘을 나타낸 것이다. 구체적으로 도 2의 (a)는 NQ-S를 KOH 수용액에 넣은 직후, 넣고 2시간 후, 4시간 후, 6시간 후, NQ-OH 단독 용액 각각의 CV 곡선을 나타낸 것이고, 도 2의 (b)는 NQ-S를 KOH 수용액에 넣은 직후, 넣고 6시간 후 NQ-OH 단독 용액 각각의 흡광도 곡선을 나타낸 것이고, 도 2의 (c)는 KOH 용액 중에서의 NQ-S의 NQ-OH로의 반응 과정을 나타낸 것이다.
도 3는 실험예 2에서 확인한 NQ 유도체들의 용해도를 나타내는 것이다. 구체적으로, 도 3의 (a)는 라운손 단독 용액의 농도에 따른 흡광도를 확인한 것이고, 도 3의 (b)는 라우손, NQ-S 및 NQ-SO의 흡광도 곡선을 나타내고, 도 3의 (c)는 NQ-SO와 KOH 사이의 상호작용을 설명하는 도면이다.
도 4은 실험예 2에서 확인한 NQ-S 용액 및 소듐 설파이트 용액 각각의 흡광도를 나타낸 것이다.
도 5는 실험예 3에서 확인한 라우손 및 NQ-S의 상이한 비율을 갖는 샘플들을 관찰한 것으로, 도 5의 (a)는 이들의 CV 곡선을 나타내고, 도 5의 (b)는 이들의 저항을 나타내고, 도 5의 (c)는 이들의 흡광도를 나타낸다.
도 6는 실험예 4에서 확인한 각 전해액의 전극 활성 물질의 산화환원 반응식 및 반쪽 전지에 대한 CV 곡선을 나타낸 것이다. 구체적으로, 도 6의 (a)는 라우손의 산화환원 반응을 나타내고, 도 6의 (b)는 페로시아나이드의 산화환원 반응을 나타내고, 도 6의 (c)는 라우손 및 페로시아나이드 각각의 Ag/AgCl에 대한 CV 곡선을 나타낸다.
도 7은 실험예 5에서 제조된 완전지를 나타낸 것이다.
도 8은 실험예 5에서 확인한 완전지의 전극 성능을 나타낸 것이다. 구체적으로 도 8의 (a)는 첫번째 사이클에서의 충전-방전 곡선, 도 8의 (b)는 사이클에 따른 충전-방전 곡선, 도 8의 (c)는 사이클에 따른 충전 효율, 도 8의 (d)는 사이클에 따른 SOC % 및 방전 용량을 나타낸다.
도 9은 실험예 5에서 확인한 AORFB 시험 전후의 CV 곡선의 비교를 나타낸 것으로 도 9의 (a)는 라우손의 Ag/AgCl에 대한 CV 곡선을 나타내고, 도 9의 (b)는 페로시아나이드의 Ag/AgCl에 대한 CV 곡선을 나타낸다.
도 10은 실험예 5에서 확인한 AORFB 시험 전후의 NQ-SO 용액의 흡광도를 나타낸다.
도 11는 실험예 5에서 확인한 0.6M의 NQ-SO 용액을 이용한 완전지의 전극 성능을 나타낸 것이고, 도 11의 (a)는 첫번째 사이클에서의 충전-방전 곡선, 도 11의 (b)는 두번째 사이클에서의 충전-방전 곡선, 도 11의 (c)는 사이클에 따른 충전 효율, 도 11의 (d)는 사이클에 따른 SOC % 및 방전 용량을 나타낸다.
도 12는 실험예 5에서 확인한 NQ-SO 용액의 충방전 실험의 결과를 나타낸 것이다.
Claims (10)
- 제1항에 있어서, 화학식 1의 화합물에 대한 화학식 2의 화합물의 몰비는 0.1 내지 10인 것인, 수계 레독스 흐름 전지용 전해액.
- 제1항에 있어서, 화학식 1의 화합물은 화학식 2의 화합물보다 더 적은 몰농도로 포함되는 것인, 수계 레독스 흐름 전지용 전해액.
- 제1항에 있어서, 화학식 1의 화합물에 대한 화학식 2의 화합물의 몰비는 1.5 내지 3인 것인, 수계 레독스 흐름 전지용 전해액.
- 제1항에 있어서, 상기 전해액은 염기성 수용액인, 수계 레독스 흐름 전지용 전해액.
- 제1항에 있어서, 상기 전해액은 KOH를 포함하는, 수계 레독스 흐름 전지용 전해액.
- 제1항 내지 제8항 중 어느 한 항에 기재된 수계 레독스 흐름 전지용 전해액을 포함하는 수계 레독스 흐름 전지.
- 제9항에 있어서, 상기 전해액은 음극 전해액이고, 페로시아나이드(ferrocyanide)가 양극 전해액으로 사용되는 것인, 수계 레독스 흐름 전지.
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