KR100326468B1 - 리튬 설퍼 전지용 전해액 - Google Patents
리튬 설퍼 전지용 전해액 Download PDFInfo
- Publication number
- KR100326468B1 KR100326468B1 KR20000042737A KR20000042737A KR100326468B1 KR 100326468 B1 KR100326468 B1 KR 100326468B1 KR 20000042737 A KR20000042737 A KR 20000042737A KR 20000042737 A KR20000042737 A KR 20000042737A KR 100326468 B1 KR100326468 B1 KR 100326468B1
- Authority
- KR
- South Korea
- Prior art keywords
- lithium
- carbonate
- electrolyte
- component
- sulfur
- 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.)
- Expired - Fee Related
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 23
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 32
- 239000000654 additive Substances 0.000 claims abstract description 26
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000000996 additive effect Effects 0.000 claims abstract description 22
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 16
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims abstract description 16
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims abstract description 13
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims abstract description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 12
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims abstract description 9
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims abstract description 8
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 claims abstract description 8
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims abstract description 8
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims abstract description 8
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940017219 methyl propionate Drugs 0.000 claims abstract description 8
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940090181 propyl acetate Drugs 0.000 claims abstract description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 8
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims abstract description 7
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- VCGMNXFYRFNKOS-UHFFFAOYSA-N 1,3-dioxetan-2-one;ethene Chemical compound C=C.O=C1OCO1 VCGMNXFYRFNKOS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000733 Li alloy Inorganic materials 0.000 claims abstract description 4
- 150000003464 sulfur compounds Chemical class 0.000 claims abstract description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 22
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 229910052717 sulfur Inorganic materials 0.000 claims description 15
- 239000011593 sulfur Substances 0.000 claims description 15
- 229910018091 Li 2 S Inorganic materials 0.000 claims description 9
- WDXYVJKNSMILOQ-UHFFFAOYSA-N 1,3,2-dioxathiolane 2-oxide Chemical compound O=S1OCCO1 WDXYVJKNSMILOQ-UHFFFAOYSA-N 0.000 claims description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 4
- 239000011149 active material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229940036348 bismuth carbonate Drugs 0.000 claims description 3
- GMZOPRQQINFLPQ-UHFFFAOYSA-H dibismuth;tricarbonate Chemical compound [Bi+3].[Bi+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GMZOPRQQINFLPQ-UHFFFAOYSA-H 0.000 claims description 3
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 claims description 2
- 125000001741 organic sulfur group Chemical group 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- -1 lithium hexafluorophosphate Chemical group 0.000 claims 5
- 239000000126 substance Substances 0.000 claims 2
- 229910015015 LiAsF 6 Inorganic materials 0.000 claims 1
- 229910013063 LiBF 4 Inorganic materials 0.000 claims 1
- 229910013870 LiPF 6 Inorganic materials 0.000 claims 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims 1
- 239000007773 negative electrode material Substances 0.000 claims 1
- 239000007774 positive electrode material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 11
- 239000002904 solvent Substances 0.000 description 7
- 210000001787 dendrite Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 150000008040 ionic compounds Chemical class 0.000 description 3
- GLNWILHOFOBOFD-UHFFFAOYSA-N lithium sulfide Chemical compound [Li+].[Li+].[S-2] GLNWILHOFOBOFD-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- 239000005077 polysulfide Substances 0.000 description 3
- 229920001021 polysulfide Polymers 0.000 description 3
- 150000008117 polysulfides Polymers 0.000 description 3
- VOVUARRWDCVURC-UHFFFAOYSA-N thiirane Chemical compound C1CS1 VOVUARRWDCVURC-UHFFFAOYSA-N 0.000 description 3
- XKTYXVDYIKIYJP-UHFFFAOYSA-N 3h-dioxole Chemical compound C1OOC=C1 XKTYXVDYIKIYJP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- NLMDJJTUQPXZFG-UHFFFAOYSA-N 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane Chemical compound C1COCCOCCNCCOCCOCCN1 NLMDJJTUQPXZFG-UHFFFAOYSA-N 0.000 description 1
- PGNSCKCEICKPKI-UHFFFAOYSA-N C(OC)(OC)=O.S1(=O)(=O)CCCC1.S1(=O)(=O)CCCC1 Chemical compound C(OC)(OC)=O.S1(=O)(=O)CCCC1.S1(=O)(=O)CCCC1 PGNSCKCEICKPKI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006245 Carbon black Super-P Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000002000 Electrolyte additive Substances 0.000 description 1
- 229910007552 Li2Sn Inorganic materials 0.000 description 1
- 229910012424 LiSO 3 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 150000003983 crown ethers Chemical class 0.000 description 1
- 239000002739 cryptand Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- BHZCMUVGYXEBMY-UHFFFAOYSA-N trilithium;azanide Chemical compound [Li+].[Li+].[Li+].[NH2-] BHZCMUVGYXEBMY-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/056—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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
- H01M4/5815—Sulfides
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
- H01M4/602—Polymers
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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
- 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
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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
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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
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0037—Mixture of solvents
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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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
- H01M6/164—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte by the solvent
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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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
- H01M6/168—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte by additives
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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
- 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
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
수명특성(100회)/초기 % | 초기 방전 용량 mAh/g | 비 고 | |
1,3-디옥소란/디그라임/설포란/디메톡시에탄(50/20/10/20), VC(2 중량%) | 55 | 568 | 실시예 1 |
2-MeTHF/EC/DMC(20/40/40), VC(2 중량%) | 60 | 632 | 실시예 2 |
2-MeTHF/EC/DMC(20/40/40), ES(2 중량%) | 59 | 640 | 실시예 3 |
2-MeTHF/EC/DMC(20/40/40), BC(2 중량%) | 52 | 625 | 실시예 4 |
1,3-디옥소란/디그라임/설포란/디메톡시에탄(50/20/10/20) | 44 | 571 | 비교예 1 |
2-MeTHF/EC/DMC(20/40/40) | 49 | 635 | 비교예 2 |
Claims (9)
- 황화합물을 양극으로 사용하고, 리튬금속 또는 리튬금속의 합금을 음극으로 사용하는 비수용성 리튬 설퍼 2차 전지의 전해액에 있어서,상기 전해액이 제 1성분으로 벤젠 및 그 유도체를 사용하고, 제 2성분으로 에틸렌카보네이트(EC), 프로필렌카보네이트(PC), 설포란(SL), 및 감마부티로락톤(GBL)로 이루어진 군에서 선택되는 물질을 사용하고, 제 3성분으로 디메틸렌카보네이트(DMC), 에틸렌메틸렌카보네이트(EMC), 디에틸카보네이트(DEC), 메틸프로필카보네이트(MPC), 메틸프로피오네이트(MP), 에틸프로피오네이트(EP), 메틸아세테이트(MA), 에틸아세테이트(EA), 프로필아세테이트(PA), 디메틸에스테르(DME), 1,3-디옥소란, 테트라하이드로퓨란(THF), 및 2-메틸테트라하이드로퓨란(2-MeTHF)으로 이루어진 군에서 선택되는 물질을 사용하는 3성분계 전해액, 및 첨가제를 포함하는 것을 특징으로 하는 리튬 설퍼 2차 전지용 전해액.
- 제 1항에 있어서,상기 제 1성분이 5 내지 30 %이고, 제 2성분은 20 내지 50 %이며, 제 3성분은 20 내지 50 %의 비율로 혼합된 전해액.
- 제 1항에 있어서,상기 전해염이 리튬헥사플루오르포스페이트(lithium hexafluorophosphate,LiPF6), 리튬테트라플루오르보레이트(LiBF4), 리튬헥사플루오르아르센네이트(LiAsF6), 리튬퍼클로레이트(LiClO4), 리튬 트리플로오로메탄술포닐 이미드(LiN(CF3SO2)2) 및 리튬트리플루오르설포네이트(CF3SO3Li)로 이루어진 군에서 선택되는 1종 이상의 물질인 전해액.
- 제 3항에 있어서,상기 전해염의 농도가 0.5 내지 2.0 M인 전해액.
- 제 1항에 있어서,상기 음극 활물질이 금속 전극, 리튬 금속의 합금 또는 리튬/비활성 황의 복합 전극을 사용하는 것인 전해액.
- 제 1항에 있어서,상기 양극 활물질이 단체황, 고체 Li2Sn(n≥1), Li2Sn(n≥1)이 용해된 캐솔라이트(catholyte), 유기 황, 및 탄소-황 복합 폴리머((C2Sx)n: x= 2.5 내지 50, n≥2)로 이루어진 군에서 선택된 1종 이상의 활물질을 사용하는 것인 전해액.
- 제 1항에 있어서,상기 첨가제가 비닐렌 카보네이트(Vinylene Carbonate), 에틸렌 설파이트(Ethylene Sulfite) 및 비스무스 카보네이트(Bismuth Carbonate)로 이루어진 군에서 선택된 것인 전해액.
- 제 7항에 있어서,상기 첨가제의 양이 전해액 전체에 대하여 0.2 내지 10 %인 전해액.
- 제 1항의 전해액을 사용하여 제조된 것을 특징으로 하는 리튬 설퍼 2차 전지.
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KR20000042737A KR100326468B1 (ko) | 2000-07-25 | 2000-07-25 | 리튬 설퍼 전지용 전해액 |
JP2001213435A JP2002075447A (ja) | 2000-07-25 | 2001-07-13 | リチウムサルファ電池用電解液及びこれを含むリチウムサルファ電池 |
US09/910,952 US20020102466A1 (en) | 2000-07-25 | 2001-07-24 | Electrolyte for a lithium-sulfur battery and a lithium-sulfur battery using the same |
CN011325267A CN1218422C (zh) | 2000-07-25 | 2001-07-25 | 用于锂硫电池的电解液以及包括这种电解液的锂硫电池 |
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MX2024006697A (es) | 2021-12-17 | 2024-06-19 | Quantumscape Battery Inc | Materiales catodicos con especies superficiales de oxido. |
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2000
- 2000-07-25 KR KR20000042737A patent/KR100326468B1/ko not_active Expired - Fee Related
- 2000-07-25 KR KR20000042736A patent/KR100326467B1/ko not_active Expired - Fee Related
-
2001
- 2001-07-13 JP JP2001213435A patent/JP2002075447A/ja not_active Withdrawn
- 2001-07-24 US US09/910,952 patent/US20020102466A1/en not_active Abandoned
- 2001-07-25 CN CN011325267A patent/CN1218422C/zh not_active Expired - Fee Related
- 2001-07-25 EP EP01117661A patent/EP1176659A3/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2017099420A1 (ko) | 2015-12-08 | 2017-06-15 | 주식회사 엘지화학 | 리튬이차전지용 전해질 및 이를 포함하는 리튬이차전지 |
KR20170067648A (ko) | 2015-12-08 | 2017-06-16 | 주식회사 엘지화학 | 리튬이차전지용 전해질 및 이를 포함하는 리튬이차전지 |
US11631898B2 (en) | 2015-12-08 | 2023-04-18 | Lg Energy Solution, Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery comprising same |
KR20180057437A (ko) | 2016-11-22 | 2018-05-30 | 주식회사 엘지화학 | 리튬이차전지용 전해질 및 이를 포함하는 리튬이차전지 |
US12183889B2 (en) | 2020-04-14 | 2024-12-31 | Lg Energy Solution, Ltd. | Lithium-sulfur battery electrolyte and lithium-sulfur battery comprising same |
Also Published As
Publication number | Publication date |
---|---|
CN1218422C (zh) | 2005-09-07 |
US20020102466A1 (en) | 2002-08-01 |
JP2002075447A (ja) | 2002-03-15 |
KR20020008704A (ko) | 2002-01-31 |
KR100326467B1 (ko) | 2002-02-28 |
EP1176659A2 (en) | 2002-01-30 |
KR20020008705A (ko) | 2002-01-31 |
EP1176659A3 (en) | 2006-05-31 |
CN1335653A (zh) | 2002-02-13 |
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