KR101055144B1 - 아미드 화합물을 포함하는 전해질 및 이를 구비한 전기화학소자 - Google Patents
아미드 화합물을 포함하는 전해질 및 이를 구비한 전기화학소자 Download PDFInfo
- Publication number
- KR101055144B1 KR101055144B1 KR1020110004356A KR20110004356A KR101055144B1 KR 101055144 B1 KR101055144 B1 KR 101055144B1 KR 1020110004356 A KR1020110004356 A KR 1020110004356A KR 20110004356 A KR20110004356 A KR 20110004356A KR 101055144 B1 KR101055144 B1 KR 101055144B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- carbamate
- carbonate
- methyl
- methoxyethyl
- Prior art date
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 126
- -1 amide compound Chemical class 0.000 title claims abstract description 61
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 25
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 24
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 14
- 150000002367 halogens Chemical class 0.000 claims abstract description 14
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 6
- 125000003277 amino group Chemical group 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 27
- 229920000642 polymer Polymers 0.000 claims description 20
- 239000005518 polymer electrolyte Substances 0.000 claims description 20
- 238000006116 polymerization reaction Methods 0.000 claims description 16
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 14
- 239000000178 monomer Substances 0.000 claims description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 10
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 10
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 5
- 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
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-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
- WFTDBNIIESVDAI-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-yl carbamate Chemical compound NC(=O)OC(C(F)(F)F)C(F)(F)F WFTDBNIIESVDAI-UHFFFAOYSA-N 0.000 claims description 3
- HFZLSTDPRQSZCQ-UHFFFAOYSA-N 1-pyrrolidin-3-ylpyrrolidine Chemical compound C1CCCN1C1CNCC1 HFZLSTDPRQSZCQ-UHFFFAOYSA-N 0.000 claims description 3
- PBOAGYSGWIHKHA-UHFFFAOYSA-N 2,2,2-trifluoroethyl carbamate Chemical compound NC(=O)OCC(F)(F)F PBOAGYSGWIHKHA-UHFFFAOYSA-N 0.000 claims description 3
- HYMXMLFTEQVHEW-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropyl carbamate Chemical compound NC(=O)OCC(F)(F)C(F)(F)F HYMXMLFTEQVHEW-UHFFFAOYSA-N 0.000 claims description 3
- UHOPWFKONJYLCF-UHFFFAOYSA-N 2-(2-sulfanylethyl)isoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(CCS)C(=O)C2=C1 UHOPWFKONJYLCF-UHFFFAOYSA-N 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
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 claims description 3
- 108010000020 Platelet Factor 3 Proteins 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 229940017219 methyl propionate Drugs 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
- 150000001450 anions 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
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-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
- 150000002431 hydrogen Chemical class 0.000 claims 2
- APVUMGZZBZZOEV-UHFFFAOYSA-N 1-fluoropropan-2-yl carbamate Chemical compound FCC(C)OC(N)=O APVUMGZZBZZOEV-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- CYEDOLFRAIXARV-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound CCCOC(=O)OCC CYEDOLFRAIXARV-UHFFFAOYSA-N 0.000 claims 1
- 150000003462 sulfoxides Chemical class 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 44
- 239000000243 solution Substances 0.000 description 15
- 229910013870 LiPF 6 Inorganic materials 0.000 description 14
- 239000012299 nitrogen atmosphere Substances 0.000 description 14
- 229940021013 electrolyte solution Drugs 0.000 description 11
- 239000008151 electrolyte solution Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000000374 eutectic mixture Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000011244 liquid electrolyte Substances 0.000 description 4
- GTCAXTIRRLKXRU-UHFFFAOYSA-N methyl carbamate Chemical compound COC(N)=O GTCAXTIRRLKXRU-UHFFFAOYSA-N 0.000 description 4
- 239000011255 nonaqueous electrolyte Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-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
- 238000007796 conventional method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 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
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 150000001408 amides Chemical class 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
- FUSUHKVFWTUUBE-UHFFFAOYSA-N buten-2-one Chemical compound CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 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
- 238000002847 impedance measurement Methods 0.000 description 2
- 239000002608 ionic liquid Substances 0.000 description 2
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 2
- 229910001416 lithium ion 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
- 239000007773 negative electrode material Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- LGJCFVYMIJLQJO-UHFFFAOYSA-N 1-dodecylperoxydodecane Chemical compound CCCCCCCCCCCCOOCCCCCCCCCCCC LGJCFVYMIJLQJO-UHFFFAOYSA-N 0.000 description 1
- UAJRSHJHFRVGMG-UHFFFAOYSA-N 1-ethenyl-4-methoxybenzene Chemical compound COC1=CC=C(C=C)C=C1 UAJRSHJHFRVGMG-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
- 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 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
- RCEJCSULJQNRQQ-UHFFFAOYSA-N 2-methylbutanenitrile Chemical compound CCC(C)C#N RCEJCSULJQNRQQ-UHFFFAOYSA-N 0.000 description 1
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- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 1
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- 230000000593 degrading effect Effects 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
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- 238000006276 transfer reaction Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 1은 코인형 이차전지의 개략적인 단면도이고,
도 2는 실시예 9(실선) 및 비교예 7(점선)에 따른 이차전지의 충방전 효율을 측정한 그래프이다.
도 3은 실시예 10(실선) 및 비교예 9~10(점선 및 이점쇄선)에 따른 이차전지의 고온에서의 충방전 효율을 측정한 그래프이다.
도 4는 실시예 10(점선) 및 비교예 9(실선)에 따라 제조된 이차전지의 임피던스를 측정한 그래프이다.
점도(cP) | 전도도(mS/cm) | 전위창(V) | |
실시예 1 | 25 | 1.6 | 0.45~4.9 |
실시예 2 | 23 | 1.5 | 0.45~4.85 |
실시예 3 | 19.5 | 1.7 | 0.45~4.9 |
실시예 4 | 9.6 | 4.2 | 0.45~4.9 |
실시예 5 | 7.8 | 5.1 | 0.45~4.85 |
실시예 6 | 8.2 | 4.7 | 0.45~4.9 |
실시예 7 | 9.7 | 4.17 | 0.45~4.9 |
실시예 8 | 10.2 | 3.5 | 0.45~4.85 |
비교예 1 | 65 | 1.4 | 0.6~4.5 |
비교예 2 | 29 | 1.5 | 0.45~4.5 |
비교예 3 | 62.0 | 1.7 | 0.6~4.7 |
비교예 4 | 7.3 | 4.05 | 0.7~4.5 |
비교예 5 | 12 | 3.79 | 0.45~4.75 |
비교예 6 | 10.5 | 4.3 | 0.4~4.68 |
초기 두께(mm) | 후기 두께(mm) | 증가량(%) | |
실시예 9 | 3.86 | 4.20 | 9.0 |
비교예 8 | 3.85 | 4.43 | 15.0 |
Claims (21)
- 하기 화학식 1로 표시되며, 알콕시알킬기가 아민기에 치환되고 할로겐을 포함하는 아미드 화합물; 및
이온화 가능한 리튬염
을 포함하는 전해질:
<화학식 1>
상기 화학식 1에 있어서,
R은 할로겐이 치환된 탄소수가 1 내지 20인 알킬기, 알킬아민기, 알케닐기 및 아릴기로 이루어진 군으로부터 선택된 어느 하나이며,
R1 및 R2는 서로 독립적으로 수소, 할로겐 및 탄소수가 1 내지 20인 알킬기, 알킬아민기, 알케닐기 및 아릴기로 이루어진 군으로부터 선택된 어느 하나이되, R1 및 R2 중 적어도 하나는 CH3-(CH2)p-O(CH2)q-로 표시되는 알콕시 알킬기로서, p는 0 내지 8의 정수이고, q는 1 내지 8의 정수이며,
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. - 제1항에 있어서,
상기 아미드 화합물은 N-메톡시에틸 트리플루오로에틸 카바메이트, N-메톡시에틸-N-메틸 트리플루오로에틸 카바메이트, N-메톡시메틸-N-메틸 트리플루오로에틸 카바메이트, N-메톡시메틸 트리플루오로에틸 카바메이트, N-메톡시메틸-N-에틸 트리플루오로에틸 카바메이트, N-메톡시에틸-N-에틸 트리플루오로에틸 카바메이트, N-메톡시에틸 플루오로에틸 카바메이트, N-메톡시에틸-N-메틸 플루오로에틸 카바메이트, N-메톡시메틸-N-메틸 플루오로에틸 카바메이트, N-메톡시메틸 플루오로에틸 카바메이트, N-메톡시메틸-N-에틸 플루오로에틸 카바메이트, N-메톡시에틸-N-에틸 플루오로에틸 카바메이트, N-메톡시에틸 펜타플루오로프로필 카바메이트, N-메톡시에틸-N-메틸 펜타플루오로프로필 카바메이트, N-메톡시메틸-N-메틸 펜타플루오로프로필 카바메이트, N-메톡시메틸 펜타플루오로프로필 카바메이트, N-메톡시메틸-N-에틸 펜타플루오로프로필 카바메이트, N-메톡시에틸-N-에틸 펜타플루오로프로필 카바메이트, N-메톡시에틸 헥사플루오로-2-프로필 카바메이트, N-메톡시에틸-N-메틸 헥사플루오로-2-프로필 카바메이트, N-메톡시메틸-N-메틸 헥사플루오로-2-프로필 카바메이트, N-메톡시메틸 헥사플루오로-2-프로필 카바메이트, N-메톡시메틸-N-에틸 헥사플루오로-2-프로필 카바메이트 및 N-메톡시에틸-N-에틸 헥사플루오로-2-프로필 카바메이트로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으로 하는 전해질. - 제1항에 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. - 제1항에 있어서,
상기 전해질은 상기 아미드 화합물과 리튬염의 몰비가 1 내지 8 : 1인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질의 전위창은 0.4 내지 5.0 V인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질은 점도가 200cP 이하인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질은 이온 전도도가 1 내지 3 mS/cm인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질은 카보네이트를 더 포함하는 것을 특징으로 하는 전해질. - 제8항에 있어서,
상기 카보네이트계 화합물은 선형 카보네이트, 환형 카보네이트 및 이들의 혼합물로 이루어진 군으로부터 선택된 어느 하나인 것을 특징으로 하는 전해질. - 제8항에 있어서,
상기 카보네이트계 화합물은 프로필렌 카보네이트(PC), 에틸렌 카보네이트(EC), 디에틸카보네이트(DEC), 디메틸카보네이트(DMC), 디프로필카보네이트(DPC), 부틸렌 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. - 제8항에 있어서,
상기 카보네이트계 화합물의 함량은 상기 아미드 화합물 및 리튬염의 전체 중량 100 중량부를 기준으로 5 내지 200중량부인 것을 특징으로 하는 전해질. - 제8항에 있어서,
상기 전해질은 점도가 50cP 이하인 것을 특징으로 하는 전해질. - 제12항에 있어서,
상기 전해질은 점도가 4 내지 30 cP 인 것을 특징으로 하는 전해질. - 제9항에 있어서,
상기 전해질은 이온 전도도가 3 내지 6 mS/cm인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질은 선형 에스테르를 더 포함하는 것을 특징으로 하는 전해질. - 제15항에 있어서,
상기 선형 에스테르는 메틸 프로피오네이트, 에틸 프로피오네이트, 프로필 프로피오네이트 및 부틸 프로피오네이트로 이루어진 군에서 선택된 어느 하나 또는 이들 중 2종 이상의 혼합물인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질은 중합반응에 의해 폴리머를 형성할 수 있는 단량체(monomer)를 함유하는 전구체 용액과 혼합되고 상기 용액의 중합에 의해 형성된 겔상의 폴리머 전해질인 것을 특징으로 하는 전해질. - 제1항에 있어서,
상기 전해질이 폴리머에 함침된 폴리머 전해질인 것을 특징으로 하는 전해질. - 양극, 음극 및 전해질을 포함하는 전기화학소자에 있어서,
상기 전해질은 제1항 내지 제18항 중 어느 한 항의 전해질인 것을 특징으로 하는 전기화학소자. - 제19항에 있어서,
상기 전기화학소자는 리튬 이차전지인 것을 특징으로 하는 전기화학소자. - 제20항에 있어서,
상기 리튬 이차전지는 파우치형 이차전지이고, 상기 파우치형 이차전지를 4.2V까지 충전한 다음 90℃에서 4시간 방치한 후의 두께 변화율이 10% 이하인 것을 특징으로 하는 전기화학소자.
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CN201180002885.3A CN102473961B (zh) | 2010-01-15 | 2011-01-17 | 包括酰胺化合物的电解质和包括所述电解质的电化学设备 |
EP11733121.5A EP2525433B1 (en) | 2010-01-15 | 2011-01-17 | Electrolyte containing an amide compound, and electrochemical device comprising the same |
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WO2011087334A2 (ko) | 2011-07-21 |
EP2525433B1 (en) | 2016-12-07 |
EP2525433A4 (en) | 2015-07-01 |
US8703345B2 (en) | 2014-04-22 |
EP2525433A2 (en) | 2012-11-21 |
CN102473961B (zh) | 2015-04-29 |
WO2011087334A3 (ko) | 2011-11-10 |
KR20110084131A (ko) | 2011-07-21 |
CN102473961A (zh) | 2012-05-23 |
US20120077091A1 (en) | 2012-03-29 |
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