KR102529247B1 - 리튬 이차 전지용 전해질 및 이를 포함하는 리튬 이차 전지 - Google Patents
리튬 이차 전지용 전해질 및 이를 포함하는 리튬 이차 전지 Download PDFInfo
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- KR102529247B1 KR102529247B1 KR1020190051437A KR20190051437A KR102529247B1 KR 102529247 B1 KR102529247 B1 KR 102529247B1 KR 1020190051437 A KR1020190051437 A KR 1020190051437A KR 20190051437 A KR20190051437 A KR 20190051437A KR 102529247 B1 KR102529247 B1 KR 102529247B1
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- lithium secondary
- secondary battery
- electrolyte
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 49
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- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 13
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 13
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 12
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- 125000002947 alkylene group Chemical group 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
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- 150000004820 halides Chemical class 0.000 description 1
- SDAXRHHPNYTELL-UHFFFAOYSA-N heptanenitrile Chemical compound CCCCCCC#N SDAXRHHPNYTELL-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 1
- DEUISMFZZMAAOJ-UHFFFAOYSA-N lithium dihydrogen borate oxalic acid Chemical compound B([O-])(O)O.C(C(=O)O)(=O)O.C(C(=O)O)(=O)O.[Li+] DEUISMFZZMAAOJ-UHFFFAOYSA-N 0.000 description 1
- FRMOHNDAXZZWQI-UHFFFAOYSA-N lithium manganese(2+) nickel(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Ni+2].[Li+] FRMOHNDAXZZWQI-UHFFFAOYSA-N 0.000 description 1
- RSNHXDVSISOZOB-UHFFFAOYSA-N lithium nickel Chemical compound [Li].[Ni] RSNHXDVSISOZOB-UHFFFAOYSA-N 0.000 description 1
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 1
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 1
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 1
- IGILRSKEFZLPKG-UHFFFAOYSA-M lithium;difluorophosphinate Chemical compound [Li+].[O-]P(F)(F)=O IGILRSKEFZLPKG-UHFFFAOYSA-M 0.000 description 1
- VGYDTVNNDKLMHX-UHFFFAOYSA-N lithium;manganese;nickel;oxocobalt Chemical compound [Li].[Mn].[Ni].[Co]=O VGYDTVNNDKLMHX-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- YSIMAPNUZAVQER-UHFFFAOYSA-N octanenitrile Chemical compound CCCCCCCC#N YSIMAPNUZAVQER-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 description 1
- 235000009991 pite Nutrition 0.000 description 1
- 244000293655 pite Species 0.000 description 1
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- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- YCCPTBSIWCOONA-UHFFFAOYSA-N prop-1-ene;sulfurous acid Chemical compound CC=C.OS(O)=O YCCPTBSIWCOONA-UHFFFAOYSA-N 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- LEIMLDGFXIOXMT-UHFFFAOYSA-N trimethylsilyl cyanide Chemical compound C[Si](C)(C)C#N LEIMLDGFXIOXMT-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CBIQXUBDNNXYJM-UHFFFAOYSA-N tris(2,2,2-trifluoroethyl) phosphite Chemical compound FC(F)(F)COP(OCC(F)(F)F)OCC(F)(F)F CBIQXUBDNNXYJM-UHFFFAOYSA-N 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 235000015041 whisky Nutrition 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/081—Compounds with Si-C or Si-Si linkages comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
-
- 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
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- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
Description
고온저장 후 방전 용량(mAh) | 고온저장 용량 유지율 (%) | |
실시예 1 | 109.4 | 91.2 |
실시예 2 | 110.2 | 91.8 |
실시예 3 | 104.6 | 87.2 |
실시예 4 | 106.4 | 88.7 |
비교예 1 | 93.0 | 77.5 |
비교예 2 | 95.0 | 79.2 |
Claims (10)
- 리튬염; 유기용매; 및 하기 화학식 1로 표시되는 화합물 내지 화학식 3으로 표시되는 화합물로 이루어진 군에서 선택되는 적어도 하나의 시아노 실란계 화합물;을 포함하는 리튬 이차 전지용 전해질로서,
상기 화학식 1로 표시되는 화합물은 상기 리튬 이차 전지용 전해질 100 중량부에 대하여 3 중량부 내지 5 중량부로 포함되고,
상기 화학식 2로 표시되는 화합물 또는 상기 화학식 3으로 표시되는 화합물은 상기 리튬 이차 전지용 전해질 100 중량부에 대하여 0.1 중량부 내지 10 중량부로 포함되는 것인 리튬 이차 전지용 전해질:
[화학식 1]
(상기 화학식 1에서 상기 R1은 수소, 시아노기 및 탄소수 1 내지 5인 알킬기로 이루어진 군에서 선택되는 것임)
[화학식 2]
(상기 화학식 2에서, 상기 R2 및 R3은 각각 독립적으로 직접 결합 또는 탄소수 1 내지 3인 알킬렌기이고, R2 및 R3 중 적어도 하나 이상은 탄소수 1 내지 3인 알킬렌기임)
[화학식 3]
(상기 화학식 3에서, 상기 R4는 직접 결합, 탄소 또는 탄소수 2 내지 5인 알케닐기임).
- 제1항에 있어서,
상기 화학식 1에서, 상기 R1은, 수소, 시아노기, -CH3, -CH2CH3, -CH(CH3)2 및 -C(CH3)3로 이루어진 군에서 선택되는 하나 이상의 시아노 실란계 화합물을 포함하는 것인 리튬 이차 전지용 전해질.
- 삭제
- 제1항에 있어서,
상기 화학식 2로 표시되는 화합물 또는 화학식 3으로 표시되는 화합물은 상기 리튬 이차 전지용 전해질 100 중량부에 대하여 0.5 중량부 내지 5 중량부로 포함되는 것인 리튬 이차 전지용 전해질.
- 제1항에 있어서,
상기 화학식 2로 표시되는 화합물 또는 화학식 3으로 표시되는 화합물은 상기 리튬 이차 전지용 전해질 100 중량부에 대하여 1 중량부 내지 4 중량부로 포함되는 것인 리튬 이차 전지용 전해질.
- 양극; 음극; 및 제1항에 따른 리튬 이차 전지용 전해질;을 포함하는 리튬 이차 전지.
- 제9항에 있어서,
구동 전압이 4 V 내지 5 V 인 리튬 이차 전지.
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KR1020190051437A KR102529247B1 (ko) | 2019-05-02 | 2019-05-02 | 리튬 이차 전지용 전해질 및 이를 포함하는 리튬 이차 전지 |
PL20799175.3T PL3940851T3 (pl) | 2019-05-02 | 2020-04-27 | Elektrolit dla akumulatora litowego i zawierający go akumulator litowy |
JP2021559359A JP7286198B2 (ja) | 2019-05-02 | 2020-04-27 | リチウム二次電池用電解質及びこれを含むリチウム二次電池 |
US17/603,991 US12125981B2 (en) | 2019-05-02 | 2020-04-27 | Electrolyte for lithium secondary battery and lithium secondary battery including the same |
CN202080028517.5A CN113692669B (zh) | 2019-05-02 | 2020-04-27 | 锂二次电池用电解质和包含该电解质的锂二次电池 |
HUE20799175A HUE062805T2 (hu) | 2019-05-02 | 2020-04-27 | Elektrolit lítium szekunder akkumulátorhoz és az azt tartalmazó lítium szekunder akkumulátor |
ES20799175T ES2952311T3 (es) | 2019-05-02 | 2020-04-27 | Electrolito para batería secundaria de litio y batería secundaria de litio que incluye el mismo |
EP20799175.3A EP3940851B1 (en) | 2019-05-02 | 2020-04-27 | Electrolyte for lithium secondary battery and lithium secondary battery including the same |
PCT/KR2020/005506 WO2020222478A1 (ko) | 2019-05-02 | 2020-04-27 | 리튬 이차전지용 전해질 및 이를 포함하는 리튬 이차전지 |
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EP0853347B1 (en) * | 1996-12-20 | 2001-10-24 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary battery |
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KR100941299B1 (ko) | 2006-07-07 | 2010-02-11 | 주식회사 엘지화학 | 시아노기를 갖는 비수 전해액 첨가제 및 이를 이용한전기화학소자 |
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2019
- 2019-05-02 KR KR1020190051437A patent/KR102529247B1/ko active Active
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- 2020-04-27 EP EP20799175.3A patent/EP3940851B1/en active Active
- 2020-04-27 WO PCT/KR2020/005506 patent/WO2020222478A1/ko unknown
- 2020-04-27 US US17/603,991 patent/US12125981B2/en active Active
- 2020-04-27 PL PL20799175.3T patent/PL3940851T3/pl unknown
- 2020-04-27 HU HUE20799175A patent/HUE062805T2/hu unknown
- 2020-04-27 CN CN202080028517.5A patent/CN113692669B/zh active Active
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CN113692669B (zh) | 2023-12-29 |
JP7286198B2 (ja) | 2023-06-05 |
EP3940851A4 (en) | 2022-06-01 |
ES2952311T3 (es) | 2023-10-30 |
JP2022528144A (ja) | 2022-06-08 |
KR20200127399A (ko) | 2020-11-11 |
EP3940851A1 (en) | 2022-01-19 |
US20220209295A1 (en) | 2022-06-30 |
HUE062805T2 (hu) | 2023-12-28 |
WO2020222478A1 (ko) | 2020-11-05 |
US12125981B2 (en) | 2024-10-22 |
CN113692669A (zh) | 2021-11-23 |
PL3940851T3 (pl) | 2023-09-18 |
EP3940851B1 (en) | 2023-06-28 |
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