KR20100011956A - 공융혼합물을 포함하는 전해질 및 이를 구비한 전기화학소자 - Google Patents
공융혼합물을 포함하는 전해질 및 이를 구비한 전기화학소자 Download PDFInfo
- Publication number
- KR20100011956A KR20100011956A KR1020090067924A KR20090067924A KR20100011956A KR 20100011956 A KR20100011956 A KR 20100011956A KR 1020090067924 A KR1020090067924 A KR 1020090067924A KR 20090067924 A KR20090067924 A KR 20090067924A KR 20100011956 A KR20100011956 A KR 20100011956A
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- methyl
- carbonate
- methoxyethyl
- eutectic mixture
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 109
- 239000000374 eutectic mixture Substances 0.000 title claims abstract description 56
- -1 amide compound Chemical class 0.000 claims abstract description 51
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims abstract description 30
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 26
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 24
- 239000000126 substance Substances 0.000 claims abstract description 16
- 239000005518 polymer electrolyte Substances 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 21
- 229920000642 polymer Polymers 0.000 claims description 19
- 229910052744 lithium Inorganic materials 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 239000000178 monomer Substances 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 12
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 12
- GTCAXTIRRLKXRU-UHFFFAOYSA-N methyl carbamate Chemical compound COC(N)=O GTCAXTIRRLKXRU-UHFFFAOYSA-N 0.000 claims description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 239000002243 precursor Substances 0.000 claims description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 8
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 7
- 125000003342 alkenyl group Chemical group 0.000 claims description 6
- 125000003282 alkyl amino group Chemical group 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 5
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 4
- FYRSBLKIFWXJSA-UHFFFAOYSA-N 3-(2-methoxyethyl)-1,3-oxazolidin-2-one Chemical compound COCCN1CCOC1=O FYRSBLKIFWXJSA-UHFFFAOYSA-N 0.000 claims description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 4
- FUSUHKVFWTUUBE-UHFFFAOYSA-N buten-2-one Chemical compound CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 claims description 4
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 4
- FVALQWWEQUWPEA-UHFFFAOYSA-N 1-(2-methoxyethyl)azepan-2-one Chemical compound COCCN1CCCCCC1=O FVALQWWEQUWPEA-UHFFFAOYSA-N 0.000 claims description 3
- QAQJKDRAJZWQCM-UHFFFAOYSA-N 2-methoxyethyl carbamate Chemical compound COCCOC(N)=O QAQJKDRAJZWQCM-UHFFFAOYSA-N 0.000 claims description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 3
- 229910020366 ClO 4 Inorganic materials 0.000 claims description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 108010000020 Platelet Factor 3 Proteins 0.000 claims description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 claims description 2
- UAJRSHJHFRVGMG-UHFFFAOYSA-N 1-ethenyl-4-methoxybenzene Chemical compound COC1=CC=C(C=C)C=C1 UAJRSHJHFRVGMG-UHFFFAOYSA-N 0.000 claims description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 2
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 2
- QKBJDEGZZJWPJA-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound [CH2]COC(=O)OCCC QKBJDEGZZJWPJA-UHFFFAOYSA-N 0.000 claims description 2
- WQBZJYMVYGBAEL-UHFFFAOYSA-N methoxymethyl carbamate Chemical compound COCOC(N)=O WQBZJYMVYGBAEL-UHFFFAOYSA-N 0.000 claims description 2
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 229920001567 vinyl ester resin Polymers 0.000 claims description 2
- 241000501667 Etroplus Species 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000007773 negative electrode material Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 28
- 239000000243 solution Substances 0.000 description 12
- 239000012299 nitrogen atmosphere Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 8
- 229910013870 LiPF 6 Inorganic materials 0.000 description 7
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000000113 differential scanning calorimetry Methods 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000011244 liquid electrolyte Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 3
- PIZHFBODNLEQBL-UHFFFAOYSA-N 2,2-diethoxy-1-phenylethanone Chemical compound CCOC(OCC)C(=O)C1=CC=CC=C1 PIZHFBODNLEQBL-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- SJEBAWHUJDUKQK-UHFFFAOYSA-N 2-ethylanthraquinone Chemical compound C1=CC=C2C(=O)C3=CC(CC)=CC=C3C(=O)C2=C1 SJEBAWHUJDUKQK-UHFFFAOYSA-N 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-O Imidazolium Chemical compound C1=C[NH+]=CN1 RAXXELZNTBOGNW-UHFFFAOYSA-O 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002608 ionic liquid Substances 0.000 description 2
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 2
- 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 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- GEWWCWZGHNIUBW-UHFFFAOYSA-N 1-(4-nitrophenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C([N+]([O-])=O)C=C1 GEWWCWZGHNIUBW-UHFFFAOYSA-N 0.000 description 1
- LGJCFVYMIJLQJO-UHFFFAOYSA-N 1-dodecylperoxydodecane Chemical compound CCCCCCCCCCCCOOCCCCCCCCCCCC LGJCFVYMIJLQJO-UHFFFAOYSA-N 0.000 description 1
- NRKYWOKHZRQRJR-UHFFFAOYSA-N 2,2,2-trifluoroacetamide Chemical compound NC(=O)C(F)(F)F NRKYWOKHZRQRJR-UHFFFAOYSA-N 0.000 description 1
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical compound O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 description 1
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 1
- HEQOJEGTZCTHCF-UHFFFAOYSA-N 2-amino-1-phenylethanone Chemical compound NCC(=O)C1=CC=CC=C1 HEQOJEGTZCTHCF-UHFFFAOYSA-N 0.000 description 1
- NLGDWWCZQDIASO-UHFFFAOYSA-N 2-hydroxy-1-(7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-yl)-2-phenylethanone Chemical compound OC(C(=O)c1cccc2Oc12)c1ccccc1 NLGDWWCZQDIASO-UHFFFAOYSA-N 0.000 description 1
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- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- XGEGHDBEHXKFPX-UHFFFAOYSA-N N-methylthiourea Natural products CNC(N)=O XGEGHDBEHXKFPX-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- YQHLDYVWEZKEOX-UHFFFAOYSA-N cumene hydroperoxide Chemical compound OOC(C)(C)C1=CC=CC=C1 YQHLDYVWEZKEOX-UHFFFAOYSA-N 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
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- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- 239000011159 matrix material Substances 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
- XGEGHDBEHXKFPX-NJFSPNSNSA-N methylurea Chemical compound [14CH3]NC(N)=O XGEGHDBEHXKFPX-NJFSPNSNSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
- IMACFCSSMIZSPP-UHFFFAOYSA-N phenacyl chloride Chemical compound ClCC(=O)C1=CC=CC=C1 IMACFCSSMIZSPP-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000003211 polymerization photoinitiator Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
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Abstract
Description
점도(cP) | 이온 전도도(mS/cm) | |
실시예 1 | 7.4 | 7.1 |
실시예 2 | 10.2 | 5.6 |
실시예 3 | 9.2 | 5.9 |
실시예 4 | 15.6 | 5.1 |
실시예 5 | 11.3 | 6.2 |
실시예 6 | 13.1 | 5.5 |
비교예 1 | 62.0 | 1.7 |
비교예 2 | 100.0 | 1.1 |
실시예 1 | 실시예 2 | 실시예 3 | 비교예 1 | 비교예 2 | |
전위창(V) | 0.45~4.5 | 0.5~4.7 | 0.45~4.55 | 0.6~4.7 | 0.7~4.9 |
전위창 | |
실시예 4 | 0.8~4.7 |
비교예 3 | 1.1~4.8 |
실시예 7 | 비교예 4 | |||
Onset Temp(℃) | 220 | 249 | 203 | 241 |
Peak area(W/g) | 66 | 501 | 539 | 174 |
초기 두께(mm) | 후기 두께(mm) | 증가량(%) | |
실시예 8 | 3.85 | 3.92 | 1.8% |
비교예 5 | 3.86 | 4.53 | 17.3% |
Claims (21)
- (a) 하기 화학식 1 또는 하기 화학식 2로 표시되는 알콕시 알킬기 함유 아미드 화합물과 이온화 가능한 리튬염의 공융혼합물(eutectic mixture) 및(b) 카보네이트계 화합물을 포함하는 전해질.<화학식 1>상기 화학식 1에 있어서,R, R1 및 R2는 서로 독립적으로 수소, 할로겐 및 탄소수가 1 내지 20인 알킬기, 알킬아민기, 알케닐기 및 아릴기로 이루어진 군으로부터 선택된 어느 하나이되, R1과 R2 중 적어도 하나는 CH3-(CH2)p-O(CH2)q로 표시되는 알콕시 알킬기로서, p는 0 내지 8의 정수이고, q는 1 내지 8의 정수이고,X는 규소, 산소, 질소, 인, 황 및 수소로 이루어진 군으로부터 선택된 어느 하나로서, i) X가 수소이면 m은 0이고, ii) X가 산소 또는 황이면 m은 1이고, ⅲ) X가 질소 또는 인이면 m은 2이고, ⅳ) X가 규소이면 m은 3이다.<화학식 2>상기 화학식 2에 있어서,R은 수소, 탄소수가 1 내지 20인 알킬기, 알킬아민기, 알케닐기, 아릴기 및 알릴기로 이루어진 군으로부터 선택된 어느 하나이고, R1은 CH3-(CH2)p-O(CH2)q로 표시되는 알콕시 알킬기로서, p는 0 내지 8의 정수이고, q는 1 내지 8의 정수이고,X는 규소, 산소, 질소, 인 및 황으로 이루어진 군으로부터 선택된 어느 하나로서, i) X가 산소 또는 황이면 m은 0이고, ii) X가 질소 또는 인이면 m은 1이고, iii) X가 규소이면 m은 2이며,n은 1 내지 10의 정수이다.
- 제 1항에 있어서, 상기 알콕시 알킬기 함유 아미드 화합물은 N-메톡시에틸 메틸카바메이트, N-메톡시에틸-N-메틸 메틸카바메이트, N-메톡시메틸-N-메틸 메틸카바메이트, N,N-디메틸 메톡시에틸 카바메이트, N-메틸-메톡시메틸 메톡시에틸 카바메이트, N-메틸-N-메톡시에틸 메톡시에틸 카바메이트, N-메틸-N-메톡시에틸 메톡시메틸 카바메이트, N-메톡시에틸카프로락탐, N-메톡시에틸 옥사졸리디논, N-메톡시에틸-N-메틸 페닐티오카바메이트 및 N-메톡시에틸-N-메틸 피페리딘카바메이트로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 리튬염의 음이온은 F-, Cl-, Br-, I-, NO3 -, N(CN)2 -, BF4 -, ClO4 -, PF6 -, (CF3)2PF4 -, (CF3)3PF3 -, (CF3)4PF2 -, (CF3)5PF-, (CF3)6P-, CF3SO3 -, CF3CF2SO3 -, (CF3SO2)2N-, (FSO2)2N-, CF3CF2(CF3)2CO-, (CF3SO2)2CH-, (SF5)3C-, (CF3SO2)3C-, CF3(CF2)7SO3 -, CF3CO2 -, CH3CO2 - , SCN- 및 (CF3CF2SO2)2N-로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 공융혼합물은 상기 알콕시 알킬기 함유 아미드 화합물과 리튬염의 몰비가 1 내지 8 : 1인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 화학식 1로 표시되는 알콕시 알킬기 함유 아미드 화합물과 이온화 가능한 리튬염의 공융혼합물의 환원전위창은 0.4 내지 0.55V이고, 상기 화학식 2로 표시되는 알콕시 알킬기 함유 아미드 화합물과 이온화 가능한 리튬염의 공융혼합물의 환원전위창은 0.7 내지 0.9V인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 카보네이트계 화합물은 선형 카보네이트, 환형 카보네이트 및 이들의 혼합물로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으 로 하는 전해질.
- 제 6항에 있어서, 상기 카보네이트계 화합물은 프로필렌 카보네이트(PC), 에틸렌 카보네이트(EC), 디에틸카보네이트(DEC), 디메틸카보네이트(DMC), 디프로필카보네이트(DPC), 부티렌 카보네이트, 메틸프로필 카보네이트, 에틸프로필 카보네이트, 디메틸설폭사이드, 아세토니트릴, 디메톡시에탄, 디에톡시에탄, 테트라하이드로퓨란, N-메틸-2-피롤리돈(NMP), 에틸메틸카보네이트(EMC) 및 감마 부티로락톤으로 이루어진 군으로부터 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 카보네이트계 화합물의 함량은 상기 공융혼합물 100 중량부를 기준으로 5 내지 200 중량부인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 점도가 50 cP 이하인 것을 특징으로 하는 전해질.
- 제 9항에 있어서, 점도가 4 내지 30 cP 이하인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 전해질의 이온 전도도는 5 내지 10 mS/cm인 것을 특징으로 하는 전해질.
- 제 1항에 있어서, 상기 전해질은 폴리머 전해질인 것을 특징으로 하는 전해질.
- 제 12항에 있어서, 상기 폴리머 전해질은 (i) 상기 (a)의 공융혼합물과 (b)의 카보네이트계 화합물의 혼합물 및 (ii) 단량체(monomer)를 동시에 함유하는 전구체 용액을 중합하여 형성된 겔상의 폴리머 전해질인 것을 특징으로 하는 전해질.
- 제 13항에 있어서, 상기 단량체는 비닐 모노머인 것을 특징으로 하는 전해질.
- 제 14항에 있어서, 상기 비닐 모노머는 아크릴로니트릴, 메틸메타크릴레이트, 메틸아크릴레이트, 메타크릴로니트닐, 메틸스티렌, 비닐에스테르류, 염화비닐, 염화비닐리덴, 아크릴아마이드, 테트라플루오로에틸렌, 비닐아세테이트, 비닐크로라이드, 메틸비닐케톤, 에틸렌, 스티렌, 파라메톡시스티렌 및 파라시아노스티렌으로 이루어진 군으로부터 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 전해질.
- 제 13항에 있어서, 상기 겔상의 폴리머 전해질은 전기 화학 소자 내부에서 In-situ 중합하여 제조된 것을 특징으로 하는 전해질.
- 제 12항에 있어서, 상기 폴리머 전해질은 상기 (a)의 공융혼합물과 (b)의 카보네이트계 화합물의 혼합물이 폴리머에 함침된 폴리머 전해질인 것을 특징으로 하는 전해질.
- 제 17항에 있어서, 상기 폴리머는 폴리메틸메타크릴레이트, 폴리비닐리덴 디플루라이드, 폴리비닐 클로라이드, 폴리에틸렌 옥사이드 및 폴리하이드록시에틸메타크릴레이트로 이루어진 군으로부터 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 전해질.
- 양극, 음극 및 전해질을 포함하는 전기화학소자에 있어서,상기 전해질은 제1항의 전해질인 것을 특징으로 하는 전기화학소자.
- 제 19항에 있어서, 상기 전기화학소자는 리튬 이차전지인 것을 특징으로 하는 전기화학소자.
- 제 20항에 있어서, 상기 리튬 이차전지는 파우치형 이차전지이고, 상기 파우치형 이차전지를 4.2V까지충전한 다음 90℃에서 4시간 방치한 후의 두께 변화율이 10% 이하인 것을 특징으로 하는 전기화학소자.
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US8481215B2 (en) | 2013-07-09 |
JP2011529252A (ja) | 2011-12-01 |
KR101022590B1 (ko) | 2011-03-16 |
US20110117422A1 (en) | 2011-05-19 |
WO2010011110A3 (ko) | 2010-05-06 |
CN102160228B (zh) | 2014-07-09 |
JP5620910B2 (ja) | 2014-11-05 |
CN102160228A (zh) | 2011-08-17 |
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