WO2022111293A1 - 一种非水电解液及锂电池 - Google Patents
一种非水电解液及锂电池 Download PDFInfo
- Publication number
- WO2022111293A1 WO2022111293A1 PCT/CN2021/130047 CN2021130047W WO2022111293A1 WO 2022111293 A1 WO2022111293 A1 WO 2022111293A1 CN 2021130047 W CN2021130047 W CN 2021130047W WO 2022111293 A1 WO2022111293 A1 WO 2022111293A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium
- additive
- aqueous electrolyte
- ethyl
- carbonate
- Prior art date
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 41
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000000654 additive Substances 0.000 claims abstract description 60
- 230000000996 additive effect Effects 0.000 claims abstract description 48
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 16
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 16
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 8
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 7
- 125000005133 alkynyloxy group Chemical group 0.000 claims abstract description 7
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 7
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 6
- 125000004450 alkenylene group Chemical group 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 6
- 125000005529 alkyleneoxy group Chemical group 0.000 claims abstract description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 125000000304 alkynyl group Chemical group 0.000 claims abstract description 3
- 125000004991 fluoroalkenyl group Chemical group 0.000 claims abstract description 3
- 125000004428 fluoroalkoxy group Chemical group 0.000 claims abstract description 3
- 125000003709 fluoroalkyl group Chemical group 0.000 claims abstract description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract 3
- 239000006259 organic additive Substances 0.000 claims abstract 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 33
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 33
- 239000003792 electrolyte Substances 0.000 claims description 33
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 33
- 239000000203 mixture Substances 0.000 claims description 32
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 31
- XDJSUFKXJGFOKY-UHFFFAOYSA-N 1,3-dioxolan-2-one;ethene Chemical compound C=C.O=C1OCCO1 XDJSUFKXJGFOKY-UHFFFAOYSA-N 0.000 claims description 29
- -1 2-pentyl acetate Ethyl Butynoate Chemical compound 0.000 claims description 29
- SYRDSFGUUQPYOB-UHFFFAOYSA-N [Li+].[Li+].[Li+].[O-]B([O-])[O-].FC(=O)C(F)=O Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-].FC(=O)C(F)=O SYRDSFGUUQPYOB-UHFFFAOYSA-N 0.000 claims description 25
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- 150000002148 esters Chemical class 0.000 claims description 11
- BYYYEOMMIGRDST-UHFFFAOYSA-N prop-1-ynyl acetate Chemical compound CC#COC(C)=O BYYYEOMMIGRDST-UHFFFAOYSA-N 0.000 claims description 11
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 claims description 8
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 8
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 8
- RIZZXCJMFIGMON-UHFFFAOYSA-N prop-2-ynyl acetate Chemical compound CC(=O)OCC#C RIZZXCJMFIGMON-UHFFFAOYSA-N 0.000 claims description 8
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 5
- YUIKUBSCWKOQKS-UHFFFAOYSA-N ethyl but-3-ynoate Chemical compound CCOC(=O)CC#C YUIKUBSCWKOQKS-UHFFFAOYSA-N 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- JGFBQFKZKSSODQ-UHFFFAOYSA-N Isothiocyanatocyclopropane Chemical compound S=C=NC1CC1 JGFBQFKZKSSODQ-UHFFFAOYSA-N 0.000 claims description 4
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 claims description 4
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 4
- 235000010290 biphenyl Nutrition 0.000 claims description 4
- 239000004305 biphenyl Substances 0.000 claims description 4
- PWLNAUNEAKQYLH-UHFFFAOYSA-N butyric acid octyl ester Natural products CCCCCCCCOC(=O)CCC PWLNAUNEAKQYLH-UHFFFAOYSA-N 0.000 claims description 4
- HHNHBFLGXIUXCM-GFCCVEGCSA-N cyclohexylbenzene Chemical compound [CH]1CCCC[C@@H]1C1=CC=CC=C1 HHNHBFLGXIUXCM-GFCCVEGCSA-N 0.000 claims description 4
- ODMITNOQNBVSQG-UHFFFAOYSA-N ethyl 2-fluoropropanoate Chemical compound CCOC(=O)C(C)F ODMITNOQNBVSQG-UHFFFAOYSA-N 0.000 claims description 4
- FMVJYQGSRWVMQV-UHFFFAOYSA-N ethyl propiolate Chemical compound CCOC(=O)C#C FMVJYQGSRWVMQV-UHFFFAOYSA-N 0.000 claims description 4
- 229940017219 methyl propionate Drugs 0.000 claims description 4
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 claims description 4
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 4
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 claims description 4
- SFLJXXFBYIUQCS-UHFFFAOYSA-N prop-1-ynyl propanoate Chemical compound CCC(=O)OC#CC SFLJXXFBYIUQCS-UHFFFAOYSA-N 0.000 claims description 4
- NBDHEMWCIUHARG-UHFFFAOYSA-N prop-2-ynyl benzoate Chemical compound C#CCOC(=O)C1=CC=CC=C1 NBDHEMWCIUHARG-UHFFFAOYSA-N 0.000 claims description 4
- 229940090181 propyl acetate Drugs 0.000 claims description 4
- HUAZGNHGCJGYNP-UHFFFAOYSA-N propyl butyrate Chemical compound CCCOC(=O)CCC HUAZGNHGCJGYNP-UHFFFAOYSA-N 0.000 claims description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 4
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- HNAGHMKIPMKKBB-UHFFFAOYSA-N 1-benzylpyrrolidine-3-carboxamide Chemical compound C1C(C(=O)N)CCN1CC1=CC=CC=C1 HNAGHMKIPMKKBB-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
- MUPJJZVGSOUSFH-UHFFFAOYSA-N 4-(2-cyanoethyl)-4-nitroheptanedinitrile Chemical compound N#CCCC([N+](=O)[O-])(CCC#N)CCC#N MUPJJZVGSOUSFH-UHFFFAOYSA-N 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 claims description 3
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical group COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- ACJOYTKWHPEIHW-UHFFFAOYSA-N ethyl 3-phenylprop-2-ynoate Chemical compound CCOC(=O)C#CC1=CC=CC=C1 ACJOYTKWHPEIHW-UHFFFAOYSA-N 0.000 claims description 3
- FCJJZKCJURDYNF-UHFFFAOYSA-N ethyl but-2-ynoate Chemical compound CCOC(=O)C#CC FCJJZKCJURDYNF-UHFFFAOYSA-N 0.000 claims description 3
- XDPRPKSTFBPPHU-UHFFFAOYSA-N ethyl pent-2-ynoate Chemical compound CCOC(=O)C#CCC XDPRPKSTFBPPHU-UHFFFAOYSA-N 0.000 claims description 3
- 150000003949 imides Chemical class 0.000 claims description 3
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 3
- IGILRSKEFZLPKG-UHFFFAOYSA-M lithium;difluorophosphinate Chemical compound [Li+].[O-]P(F)(F)=O IGILRSKEFZLPKG-UHFFFAOYSA-M 0.000 claims description 3
- MHAIQPNJLRLFLO-UHFFFAOYSA-N methyl 2-fluoropropanoate Chemical compound COC(=O)C(C)F MHAIQPNJLRLFLO-UHFFFAOYSA-N 0.000 claims description 3
- HEXLXXYQFQNGEW-UHFFFAOYSA-N prop-1-ynyl 2-methylprop-2-enoate Chemical compound CC#COC(=O)C(C)=C HEXLXXYQFQNGEW-UHFFFAOYSA-N 0.000 claims description 3
- LXPTXVYIIYSSHU-UHFFFAOYSA-N propyl 2-fluoropropanoate Chemical compound CCCOC(=O)C(C)F LXPTXVYIIYSSHU-UHFFFAOYSA-N 0.000 claims description 3
- GGOVLNOXFVYTPN-UHFFFAOYSA-M C(C(=O)O)(=O)[O-].B(O)(F)F.[Li+] Chemical compound C(C(=O)O)(=O)[O-].B(O)(F)F.[Li+] GGOVLNOXFVYTPN-UHFFFAOYSA-M 0.000 claims description 2
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- SNGMABFTOTYJGX-UHFFFAOYSA-N prop-2-ynyl prop-2-ynoate Chemical compound C#CC(=O)OCC#C SNGMABFTOTYJGX-UHFFFAOYSA-N 0.000 claims description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims 2
- VCYZVXRKYPKDQB-UHFFFAOYSA-N ethyl 2-fluoroacetate Chemical compound CCOC(=O)CF VCYZVXRKYPKDQB-UHFFFAOYSA-N 0.000 claims 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims 2
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 claims 2
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 claims 1
- JGLYXLCIDZQOEW-UHFFFAOYSA-N 4,4,4-triphenylbutoxyboronic acid Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(CCCOB(O)O)C1=CC=CC=C1 JGLYXLCIDZQOEW-UHFFFAOYSA-N 0.000 claims 1
- ABDCUJOXGJOCKO-UHFFFAOYSA-N B(O)(O)O.C1(=CC=CC=C1)C(CCC[Li])(C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound B(O)(O)O.C1(=CC=CC=C1)C(CCC[Li])(C1=CC=CC=C1)C1=CC=CC=C1 ABDCUJOXGJOCKO-UHFFFAOYSA-N 0.000 claims 1
- RBKMZOVCGJIRNQ-UHFFFAOYSA-N B([O-])(F)F.C(C(=O)O)(=O)O.[Li+] Chemical compound B([O-])(F)F.C(C(=O)O)(=O)O.[Li+] RBKMZOVCGJIRNQ-UHFFFAOYSA-N 0.000 claims 1
- 239000005711 Benzoic acid Substances 0.000 claims 1
- 235000010233 benzoic acid Nutrition 0.000 claims 1
- XGCILSHUAUFSLI-UHFFFAOYSA-N dodecalithium;tetraborate Chemical compound [Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] XGCILSHUAUFSLI-UHFFFAOYSA-N 0.000 claims 1
- XNERWVPQCYSMLC-UHFFFAOYSA-N phenylpropiolic acid Chemical compound OC(=O)C#CC1=CC=CC=C1 XNERWVPQCYSMLC-UHFFFAOYSA-N 0.000 claims 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims 1
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 58
- 229910013870 LiPF 6 Inorganic materials 0.000 description 30
- 239000011259 mixed solution Substances 0.000 description 30
- 229910052786 argon Inorganic materials 0.000 description 29
- 239000008151 electrolyte solution Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 8
- 238000013475 authorization Methods 0.000 description 6
- 231100000615 substance of very high concern Toxicity 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 3
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 2
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 2
- 229910012258 LiPO Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ISFGTDAAYLSOFY-QMMMGPOBSA-N (4s)-4-hydroxy-3-methyl-2-prop-2-ynylcyclopent-2-en-1-one Chemical compound CC1=C(CC#C)C(=O)C[C@@H]1O ISFGTDAAYLSOFY-QMMMGPOBSA-N 0.000 description 1
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 229910012424 LiSO 3 Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- JHRWWRDRBPCWTF-OLQVQODUSA-N captafol Chemical class C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)C(Cl)Cl)C(=O)[C@H]21 JHRWWRDRBPCWTF-OLQVQODUSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- UXOLDCOJRAMLTQ-UHFFFAOYSA-N ethyl 2-chloro-2-hydroxyiminoacetate Chemical compound CCOC(=O)C(Cl)=NO UXOLDCOJRAMLTQ-UHFFFAOYSA-N 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- OWNSEPXOQWKTKG-UHFFFAOYSA-M lithium;methanesulfonate Chemical compound [Li+].CS([O-])(=O)=O OWNSEPXOQWKTKG-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- UORVCLMRJXCDCP-UHFFFAOYSA-N propynoic acid Chemical compound OC(=O)C#C UORVCLMRJXCDCP-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 235000011178 triphosphate Nutrition 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-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
- H01M10/42—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
-
- 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
- H01M2300/004—Three solvents
-
- 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
- H01M2300/0088—Composites
- H01M2300/0091—Composites in the form of mixtures
-
- 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
Definitions
- the invention belongs to the field of lithium ion batteries, and particularly relates to a non-aqueous electrolyte and a lithium battery.
- lithium-ion batteries With the emergence of emerging consumer fields such as mobile phones, tablet computers, smart wearables, and ETC, lithium-ion batteries have shown great advantages due to their high energy density and long cycle life.
- Sulfonyl compounds are usually used in the field of electrolytes in the form of small organic molecules, as solvent additives for non-aqueous electrolytes of lithium-ion batteries, using the electrode film-forming properties of sulfonyl groups to form a stable SEI film/protective film on the electrode surface, and then Suppress gas generation, improve battery high temperature storage performance, cycle performance, life characteristics, etc.
- lithium salts containing sulfonyl groups are also widely used, especially sulfonimide salts.
- the technical problem to be solved by the present invention is to provide a new non-aqueous electrolyte and lithium battery which can ensure high temperature storage performance and cycle performance.
- the present invention adopts the following technical solutions:
- One aspect of the present invention provides a non-aqueous electrolyte solution, comprising a lithium salt, an organic solvent and an additive, and the additive comprises an additive A and an additive B,
- the additive A is one or more of the substances represented by the general structural formula (1), and the general structural formula of the additive A is: R 1 is selected from alkylene, alkyleneoxy, fluoroalkylene, fluoroalkyleneoxy, alkenylene or fluoroalkenylene, R 2 and R 3 are independently selected from hydrogen, phenyl, alkynyl, alkynyloxy, alkyl, alkoxy, fluoroalkyl, fluoroalkoxy, alkenyl or fluoroalkenyl;
- the additive B is a boron-containing lithium salt.
- the invention can inhibit the decomposition of the electrolyte at high temperature, avoid gas generation, improve the safety, and effectively improve the high-temperature storage and cycle performance of the battery.
- R 2 and R 3 are selected from groups other than hydrogen and phenyl
- the number of C atoms in R 2 and R 3 is preferably 2 to 6, respectively.
- R 1 is selected from alkylene, alkyleneoxy or alkenylene
- R 2 and R 3 are independently selected from hydrogen, phenyl, alkyl, alkenyl, alkoxy or alkynyloxy.
- R 1 is an alkylene group or an alkenylene group
- R 2 and R 3 are independently selected from alkoxy or alkynyloxy
- R 1 is an alkyleneoxy group
- R 2 and R 3 are independently Selected from hydrogen, phenyl, alkyl or alkenyl.
- R 2 is preferably an alkoxy group or an alkynyloxy group.
- the additive A is propynyl acetate, propynyl propionate, ethyl propynoate, 4-ynyl acetate, ethyl 2-pentynoate, ethyl 3-butynoate (CAS No.: 53841-07-9), 2-butynoic acid ethyl ester, methyl carboxylate-2-propynyl ester, methyl carboxylate-2-ethynyl ester, phenylpropynoic acid ethyl ester, propynoic acid propargyl One or more of propargyl methacrylate, propynyl methacrylate and propargyl benzoate.
- the boron-containing lithium salt includes one of lithium difluorooxalate borate, lithium tetrafluoroborate, lithium dioxalate borate, lithium tetraborate, lithium triphenyl-n-butylborate, and trimethylimidazolium tetrafluoroborate. one or more.
- the feeding mass of the additive A accounts for 0.01-2% of the total mass of the non-aqueous electrolyte.
- the feeding mass of the additive A accounts for 0.1-1% of the total mass of the non-aqueous electrolyte.
- the feeding mass of the additive A accounts for 0.2-0.8% of the total mass of the non-aqueous electrolyte.
- the feeding mass of the additive B accounts for 0.01-2% of the total mass of the non-aqueous electrolyte.
- the feeding mass of the additive B accounts for 0.3-1.5% of the total mass of the non-aqueous electrolyte.
- the organic solvent is a mixture of cyclic ester and chain ester.
- the volume ratio of the cyclic ester to the chain ester in the organic solvent is 1:(5-15).
- the volume ratio of the cyclic ester to the chain ester in the organic solvent is 1:(7-12).
- the cyclic ester is one or more of ⁇ -butyrolactone (GBL), ethylene carbonate (EC), propylene carbonate (PC), and fluoroethylene carbonate (FEC).
- GBL ⁇ -butyrolactone
- EC ethylene carbonate
- PC propylene carbonate
- FEC fluoroethylene carbonate
- the chain ester is dimethyl carbonate (DMC), ethyl methyl carbonate (EMC), diethyl carbonate (DEC), methyl propyl carbonate (MPC), methyl propionate (MP), Ethyl propionate (EP), propyl propionate (PP), methyl acetate (MA), ethyl acetate (EA), propyl acetate (PA), methyl butyrate (MB), ethyl butyrate ( One or more of EB), propyl butyrate (PB), methyl fluoropropionate (FMP), propyl fluoropropionate, ethyl fluoropropionate, and ethyl fluoropropionate.
- DMC dimethyl carbonate
- EMC ethyl methyl carbonate
- DEC diethyl carbonate
- MPC methyl propyl carbonate
- MP methyl propionate
- EP Ethyl propionate
- PP propyl propionate
- the lithium salt is lithium hexafluorophosphate (LiPF 6 ), lithium tetrafluoroborate (LiBF 4 ), lithium hexafluoroarsenate (LiAsF 6 ), anhydrous lithium perchlorate (LiClO 4 ), bis(trifluoromethyl) Lithium sulfonyl)imide (LiN(SO 2 CF 3 ) 2 ), Lithium Difluorobisoxalate Phosphate (LiPF 2 (C 2 O 4 ) 2 ), Lithium Difluorophosphate (LiPO 2 F 2 ), Trifluoro Lithium methanesulfonate (LiSO 3 CF 3 ), lithium difluorobisoxalate phosphate (LiPO 8 C 4 F 2 ), lithium bisfluoroborate monooxalate, lithium bisfluorosulfonimide (LiN(SO 2 F) 2 ) one or more of them.
- LiPF 6
- the concentration of the lithium salt is 1-1.5 mol/L.
- the concentration of the lithium salt is 1.1-1.3 mol/L.
- the additive further includes other additives, and the other additives are vinylene carbonate (VC), vinylethylene carbonate (VEC), biphenyl (BP), cyclohexylbenzene (CHB), triphosphate
- VEC vinylene carbonate
- VEC vinylethylene carbonate
- BP biphenyl
- CHB cyclohexylbenzene
- TOP octyl ester
- FEC fluoroethylene carbonate
- SN succinonitrile
- adiponitrile AND
- 1,3,6-hexanetrinitrile HTCN
- the feeding mass of other additives accounts for 2-10% of the total mass of the non-aqueous electrolyte, more preferably 5-8%.
- the other additives are vinylene carbonate and ethylene ethylene carbonate whose mass ratio is 1:(1.5-4).
- the other additives are vinylene carbonate and ethylene ethylene carbonate whose mass ratio is 1:(2-3).
- Another object of the present invention is to provide a lithium battery comprising a positive electrode, a negative electrode and an electrolyte, and the electrolyte is the non-aqueous electrolyte.
- the additive A and the additive B with the above-mentioned structure are simultaneously added to the non-aqueous electrolyte, and the other components of the electrolyte are coordinated, so that the lithium ion battery containing the electrolyte has good high temperature and cycle performance.
- the present invention has the following advantages compared with the prior art:
- the non-aqueous electrolyte of the present invention uses a new additive that can replace sulfur-containing compounds, can improve the high-temperature storage performance and cycle performance of lithium batteries, and provides more options for the preparation of non-aqueous electrolytes and lithium batteries.
- ppm in the following examples and comparative examples refers to the concentration in parts per million, and wt% refers to the weight percentage.
- DEC, EC and EMC were mixed uniformly in a volume ratio of 3:1:6, 1.2mol/L LiPF 6 was added to the mixed solution, and then added to the mixed solution.
- the electrolyte was prepared by adding 0.3wt% propynyl propionate, 0.5wt% lithium difluorooxalate borate, 2wt% vinylene carbonate and 5wt% ethylene ethylene carbonate respectively.
- the capacity retention rate after 30 days of high temperature storage at 60°C that is, charging at 1C to 4.2V under constant current/constant voltage (CC/CV) conditions of 25°C, and then storing in an oven at 60°C for 30 days, respectively 1C after storage
- the bulging rate of the battery after 30 days of storage at a high temperature of 60 °C that is, the difference between the thickness of the battery after storage and the thickness of the battery before storage divided by the thickness of the battery before storage;
- the capacity retention rate of 1000 cycles at 45°C that is, after 1000 cycles at 45°C, the capacity is charged to 4.2V at 1C under constant current/constant voltage (CC/CV) conditions at 45°C, and then discharged to 3.0V at 1C.
- CC/CV constant current/constant voltage
- the swelling rate of the battery at 45°C for 1000 cycles that is, the difference between the thickness of the battery after the cycle and the thickness of the battery before the cycle divided by the thickness of the battery before the cycle;
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Secondary Cells (AREA)
Abstract
本发明公开了一种非水电解液及锂电池。为了减少或避免非水电解液中含硫化合物的使用以及解决锂电池高温储存性能及循环性能不好的问题,本发明采用一种非水电解液,包括锂盐、有机溶剂和添加剂,添加剂包括添加剂A和添加剂B,添加剂A为结构通式(1)所示物质中的一种或多种,添加剂A的结构通式(1), R1选自亚烷基、亚烷氧基、氟代亚烷基、氟代亚烷氧基、亚烯基或氟代亚烯基,R2、R3独立的选自氢、苯基、炔基、炔氧基、烷基、烷氧基、氟代烷基、氟代烷氧基、烯基或氟代烯基;添加剂B为含硼锂盐。本发明的非水电解液使用了一种新的能够代替含硫化合物添加剂,能够改善锂电池的高温储存性能及循环性能。
Description
本发明属于锂离子电池领域,具体涉及一种非水电解液以及锂电池。
随着手机、平板电脑、智能穿戴以及ETC等新兴消费领域的出现,锂离子电池凭其高能量密度和长循环寿命显现了极大优势。磺酰化合物通常以有机小分子形式用于电解液领域,作为锂离子电池非水电解液的溶剂添加剂,利用磺酰基团的电极成膜性,在电极表面形成稳定的SEI膜/保护膜,进而抑制气体产生,改善电池高温存储性能、循环性能、寿命特性等。在电解液中,含磺酰基团的锂盐也应用较多,尤其是磺酰亚胺盐。来源于欧盟REACH法规,对物品中含有的SVHC物质,如物质占物品总重质量比超过0.1%且物品生产或进口总量达到1吨/年及以上,则该物品的生产商或进口商必须向欧洲化学品管理署进行SVHC通报。物质列入REACH授权候选清单(即SVHC清单)后的6个月内,企业必须提交ECHA通报文件。我们公司产品是以电解液(混合物)形式出口的,不需要进行通报(以消费品出口时才需要通报,如:电池),PS(1,3-丙磺内酯)于2015年12月17日更新到SVHC(高关注度物质)清单中,是有害物质,但不在限制和授权清单,已经列入授权的候选清单(也就是说未来有可能正式列入授权清单)。如果以后正式列入授权清单,进口商需要对他们的用途进行授权,如果授权被否决的话,到一定时候这个物质会被禁用的。随着SVHC清单越来越宽,后期很多含硫化合物都有可能被限制。因此,需要寻找能够替代含硫化合物且能够改善电解液的高温储存性能及循环性能的不含硫添加剂。
发明内容
本发明所要解决的技术问题是提供一种新的且能够保证高温储存性能及循环性能的非水电解液及锂电池。
为解决上述技术问题,本发明采用如下技术方案:
本发明一方面提供了一种非水电解液,包括锂盐、有机溶剂和添加剂,所述的添加剂包括添加剂A和添加剂B,
所述的添加剂A为结构通式(1)所示物质中的一种或多种,所述的添加剂A的结构通 式为:
R
1选自亚烷基、亚烷氧基、氟代亚烷基、氟代亚烷氧基、亚烯基或氟代亚烯基,R
2、R
3独立的选自氢、苯基、炔基、炔氧基、烷基、烷氧基、氟代烷基、氟代烷氧基、烯基或氟代烯基;
所述的添加剂B为含硼锂盐。
本发明通过添加剂A与添加剂B的协同作用,能够在高温下抑制电解液分解,避免气体产生,提高安全性,有效改善电池的高温储存以及循环性能。
本发明中,n=1时,R
1的C原子数为1~6个;n=2时,R
1的C原子数为1~3个;n=3时,R
1的C原子数为1或2个。
本发明中,当R
2、R
3选自除氢、苯基之外的基团时,R
2、R
3的C原子数分别优选为2~6个。
优选地,R
1选自亚烷基、亚烷氧基或亚烯基,R
2、R
3独立的选自氢、苯基、烷基、烯基、烷氧基或炔氧基。
本发明中,当R
1为亚烷基或亚烯基时,R
2、R
3独立的选自烷氧基或炔氧基;当R
1为亚烷氧基,R
2、R
3独立的选自氢、苯基、烷基或烯基。
进一步地,n=0时,R
2优选为烷氧基或炔氧基。
优选地,所述的添加剂A为乙酸丙炔酯,丙酸丙炔酯,丙炔酸乙酯,乙酸4-炔酯,2-戊炔酸乙酯,乙基3-丁炔酸酯(CAS号:53841-07-9),2-丁炔酸乙酯,甲基羧酸-2-丙炔酯,甲基羧酸-2-乙炔酯,苯丙炔酸乙酯,丙炔酸炔丙基酯,甲基丙烯酸丙炔基酯,苯酸炔丙酯中的一种或多种。
优选地,含硼锂盐包括二氟草酸硼酸锂,四氟硼酸锂,二草酸硼酸锂,四硼酸锂,三苯基正丁基硼酸锂、三甲基咪唑鎓四氟硼酸盐中的一种或多种。
优选地,所述的添加剂A的投料质量占所述的非水电解液总质量的0.01~2%。
进一步优选地,所述的添加剂A的投料质量占所述的非水电解液总质量的0.1~1%。
更进一步优选地,所述的添加剂A的投料质量占所述的非水电解液总质量的0.2~0.8%。
优选地,所述的添加剂B的投料质量占所述的非水电解液总质量的0.01~2%。
进一步优选地,所述的添加剂B的投料质量占所述的非水电解液总质量的0.3~1.5%。
优选地,所述的有机溶剂为环状酯和链状酯的混合物。
进一步优选地,所述的有机溶剂中的环状酯与链状酯的体积比为1:(5~15)。
更进一步优选地,所述的有机溶剂中的环状酯与链状酯的体积比为1:(7~12)。
优选地,所述的环状酯为γ-丁内酯(GBL)、碳酸乙烯酯(EC)、碳酸丙烯酯(PC)、氟代碳酸乙烯酯(FEC)中的一种或多种。
优选地,所述的链状酯为碳酸二甲酯(DMC)、碳酸甲乙酯(EMC)、碳酸二乙酯(DEC)、碳酸甲丙酯(MPC)、丙酸甲酯(MP)、丙酸乙酯(EP)、丙酸丙酯(PP)、乙酸甲酯(MA)、乙酸乙酯(EA)、乙酸丙酯(PA)、丁酸甲酯(MB)、丁酸乙酯(EB)、丁酸丙酯(PB)、氟代丙酸甲酯(FMP)、氟代丙酸丙酯、氟代丙酸乙酯、氟代乙酸乙酯中的一种或多种。
优选地,所述的锂盐为六氟磷酸锂(LiPF
6)、四氟硼酸锂(LiBF
4)、六氟砷酸锂(LiAsF
6)、无水高氯酸锂(LiClO
4)、二(三氟甲基磺酸酰)亚胺锂(LiN(SO
2CF
3)
2)、二氟二草酸磷酸锂(LiPF
2(C
2O
4)
2)、二氟磷酸锂(LiPO
2F
2)、三氟甲基磺酸锂(LiSO
3CF
3)、二氟二草酸磷酸锂(LiPO
8C
4F
2)、单草酸双氟硼酸锂、双氟磺酰亚胺锂(LiN(SO
2F)
2)中的一种或者几种。
优选地,所述的锂盐的浓度为1~1.5mol/L。
进一步优选地,所述的锂盐的浓度为1.1~1.3mol/L。
优选地,所述的添加剂还包括其他添加剂,所述的其他添加剂为碳酸亚乙烯酯(VC)、碳酸乙烯亚乙酯(VEC)、联苯(BP)、环己基苯(CHB)、磷酸三辛酯(TOP)、氟代碳酸乙烯酯(FEC)、丁二腈(SN)、己二腈(AND)、1,3,6-己烷三腈(HTCN)中的一种或多种。
本发明中,其他添加剂的投料质量占非水电解液总质量的2~10%,进一步优选为5~8%。
进一步优选地,所述的其他添加剂为投料质量比为1:(1.5~4)的碳酸亚乙烯酯和碳酸乙烯亚乙酯。
更进一步优选地,所述的其他添加剂为投料质量比为1:(2~3)的碳酸亚乙烯酯和碳酸乙烯亚乙酯。
本发明的另一个目的是提供一种锂电池,包括正极、负极和电解液,所述的电解液为所述的非水电解液。
本发明通过在非水电解液中同时添加具有上述结构的添加剂A和添加剂B,并与电解液的其他组分相协同配合,使含有该电解液的锂离子电池具有良好的高温及循环性能。
由于上述技术方案运用,本发明与现有技术相比具有下列优点:
本发明的非水电解液使用了一种新的能够替代含硫化合物的添加剂,同时能够改善锂电池的高温储存性能及循环性能,为非水电解液及锂电池的制备提供了更多选择。
下面结合实施例对本发明作进一步描述。但本发明并不限于以下实施例。实施例中采用的实施条件可以根据具体使用的不同要求做进一步调整,未注明的实施条件为本行业中的常规条件。本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组 合。
在没有特别说明的情况下,下述实施例以及对比例中的ppm指百万分比浓度,wt%指重量百分率。
实施例1:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例2:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.5wt%的乙酸丙炔酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例3:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加1wt%的乙酸丙炔酯0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例4:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加1wt%的乙酸丙炔酯0.3wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例5:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加1wt%的乙酸丙炔酯1wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例6:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加1wt%的乙酸丙炔酯1.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例7:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的丙炔酸乙 酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例8:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的甲基羧酸-2-丙炔酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例9:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的苯丙炔酸乙酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例10:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的丙炔酸丙炔酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例11:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的甲基丙烯酸丙炔基酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例12:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的苯酸炔丙酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例13:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的丙酸丙炔酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解 液。
实施例14:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸4-炔酯、0.5wt%二氟草酸硼酸锂,以及2%碳酸亚乙烯酯以及5%碳酸乙烯亚乙酯制得电解液。
实施例15:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的2-戊炔酸乙酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例16:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙基3-丁炔酸酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例17:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的2-丁炔酸乙酯、0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例18:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯、0.5wt%四氟硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例19:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯、0.5wt%三苯基正丁基硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例20:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合 均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯、0.5wt%三甲基咪唑鎓四氟硼酸盐,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
实施例21:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的苯酸炔丙酯以及0.5wt%二氟草酸硼酸锂。
实施例22:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的甲基羧酸-2-丙炔酯以及0.5wt%二氟草酸硼酸锂。
实施例23:
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯以及0.5wt%二氟草酸硼酸锂。
对比例1
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
对比例2
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.5wt%二氟草酸硼酸锂,以及2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
对比例3
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加0.3wt%的乙酸丙炔酯、2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
对比例4
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中分别添加1.5wt%的1,3-丙烷磺内酯、2wt%碳酸亚乙烯酯以及5wt%碳酸乙烯亚乙酯制得电解液。
对比例5
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中添加0.3wt%的乙酸丙炔酯。
对比例6
在充氩气的手套箱中(H
2O含量<10ppm),将DEC、EC和EMC以3:1:6的体积比混合均匀,在混合溶液中加入1.2mol/L的LiPF
6,然后向该电解液中添加0.5wt%二氟草酸硼酸锂。
将上述实施例1至实施例23以及对比例1至对比例6配制的电解液,分别在MCN811石墨电池测试:
60℃高温搁置30天容量保持率,即,在25℃的恒定电流/恒定电压(CC/CV)条件下以1C充电到4.2V,后在60℃的烘箱中搁置30天,搁置后分别1C放电至3.0V的容量除以搁置前以同样条件充电后再1C放电至3.0V的容量;
60℃高温搁置30天电池鼓胀率,即搁置后电池厚度与搁置前电池厚度差值除以搁置前电池厚度;
45℃1000周循环容量保持率,即45℃条件下1000周循环后分别在45℃的恒定电流/恒定电压(CC/CV)条件下以1C充电到4.2V,后1C放电至3.0V的容量除以循环前在同等条件下充电到4.2V后分别1C放电至3.0V的容量;
45℃1000周循环的电池鼓胀率,即循环后电池厚度与循环前电池厚度差值除以循环前电池厚度;
相关实验数据见表1。
表1
以上对本发明做了详尽的描述,其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明的精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (15)
- 根据权利要求1所述的非水电解液,其特征在于:所述的R 1选自亚烷基、亚烷氧基或亚烯基,所述的R 2、所述的R 3独立的选自氢、苯基、烷基、烯基、烷氧基或炔氧基。
- 根据权利要求1或2所述的非水电解液,其特征在于:所述的添加剂A为乙酸丙炔酯,丙酸丙炔酯,丙炔酸乙酯,乙酸4-炔酯,2-戊炔酸乙酯,乙基3-丁炔酸酯,2-丁炔酸乙酯,甲基羧酸-2-丙炔酯,甲基羧酸-2-乙炔酯,苯丙炔酸乙酯,丙炔酸炔丙基酯,甲基丙烯酸丙炔基酯,苯酸炔丙酯中的一种或多种。
- 根据权利要求1所述的非水电解液,其特征在于:所述的添加剂B选自二氟草酸硼酸锂,四氟硼酸锂,二草酸硼酸锂,四硼酸锂,三苯基正丁基硼酸锂、三甲基咪唑鎓四氟硼酸盐中的一种或多种。
- 根据权利要求1所述的非水电解液,其特征在于:所述的添加剂A的投料质量占所述的非水电解液总质量的0.01~2%;所述的添加剂B的投料质量占所述的非水电解液总质量的0.01~2%。
- 根据权利要求5所述的非水电解液,其特征在于:所述的添加剂A的投料质量占所述的非水电解液总质量的0.1~1%;和/或,所述的添加剂B的投料质量占所述的非水电解液总质量的0.3~1.5%。
- 根据权利要求1所述的非水电解液,其特征在于:所述的有机溶剂为环状酯和链状酯的混合物。
- 根据权利要求7所述的非水电解液,其特征在于:所述的环状酯为γ-丁内酯、碳酸乙烯酯、碳酸丙烯酯、氟代碳酸乙烯酯中的一种或几种;和/或,所述的链状酯为碳酸二甲酯、碳酸甲乙酯、碳酸二乙酯、碳酸甲丙酯、丙酸甲酯、 丙酸乙酯、丙酸丙酯、乙酸甲酯、乙酸乙酯、乙酸丙酯、丁酸甲酯、丁酸乙酯、丁酸丙酯、氟代丙酸甲酯、氟代丙酸丙酯、氟代丙酸乙酯、氟代乙酸乙酯中的一种或多种。
- 根据权利要求1所述的非水电解液,其特征在于:所述的锂盐为六氟磷酸锂、四氟硼酸锂、六氟砷酸锂、无水高氯酸锂、二(三氟甲基磺酸酰)亚胺锂、二氟二草酸磷酸锂、二氟磷酸锂、三氟甲基磺酸锂、二氟二草酸磷酸锂、单草酸双氟硼酸锂、双氟磺酰亚胺锂中的一种或多种。
- 根据权利要求9所述的非水电解液,其特征在于:所述的锂盐的浓度为1~1.5mol/L。
- 根据权利要求1所述的非水电解液,其特征在于:所述的添加剂还包括其他添加剂,所述的其他添加剂为碳酸亚乙烯酯、碳酸乙烯亚乙酯、联苯、环己基苯、磷酸三辛酯、氟代碳酸乙烯酯、丁二腈、己二腈、1,3,6-己烷三腈中的一种或多种。
- 根据权利要求11所述的非水电解液,其特征在于:所述的其他添加剂为投料质量比为1:(1.5~4)的碳酸亚乙烯酯和碳酸乙烯亚乙酯。
- 一种非水电解液,包括锂盐、有机溶剂和添加剂,其特征在于:所述的添加剂包括添加剂A和添加剂B,所述的添加剂A为乙酸丙炔酯,丙酸丙炔酯,丙炔酸乙酯,乙酸4-炔酯,2-戊炔酸乙酯,乙基3-丁炔酸酯,2-丁炔酸乙酯,甲基羧酸-2-丙炔酯,甲基羧酸-2-乙炔酯,苯丙炔酸乙酯,丙炔酸炔丙基酯,甲基丙烯酸丙炔基酯,苯酸炔丙酯中的一种或多种,其中,所述添加剂A的投料质量占所述的非水电解液总质量的0.01~2%;所述的添加剂B选自二氟草酸硼酸锂,四氟硼酸锂,二草酸硼酸锂,四硼酸锂,三苯基正丁基硼酸锂、三甲基咪唑鎓四氟硼酸盐中的一种或多种,其中,所述的添加剂B的投料质量占所述的非水电解液总质量的0.01~2%;所述的锂盐为六氟磷酸锂、四氟硼酸锂、六氟砷酸锂、无水高氯酸锂、二(三氟甲基磺酸酰)亚胺锂、二氟二草酸磷酸锂、二氟磷酸锂、三氟甲基磺酸锂、二氟二草酸磷酸锂、单草酸双氟硼酸锂、双氟磺酰亚胺锂中的一种或多种,其中,所述的锂盐的浓度为1~1.5mol/L;所述的有机溶剂为环状酯和链状酯的混合物,所述的环状酯为γ-丁内酯、碳酸乙烯酯、碳酸丙烯酯、氟代碳酸乙烯酯中的一种或几种;所述的链状酯为碳酸二甲酯、碳酸甲乙酯、碳酸二乙酯、碳酸甲丙酯、丙酸甲酯、丙酸乙酯、丙酸丙酯、乙酸甲酯、乙酸乙酯、乙酸丙酯、丁酸甲酯、丁酸乙酯、丁酸丙酯、氟代丙酸甲酯、氟代丙酸丙酯、氟代丙酸乙酯、氟代乙酸乙酯中的一种或多种,所述的有机溶剂中的环状酯与链状酯的体积比为1:(5~15)。
- 根据权利要求13所述的非水电解液,其特征在于:所述的添加剂还包括其他添加剂,所述的其他添加剂为碳酸亚乙烯酯、碳酸乙烯亚乙酯、联苯、环己基苯、磷酸三辛酯、氟代 碳酸乙烯酯、丁二腈、己二腈、1,3,6-己烷三腈中的一种或多种,所述的其他添加剂的投料质量占非水电解液总质量的2~10%。
- 一种锂电池,包括正极、负极和电解液,其特征在于:所述的电解液为权利要求1至14中任一项所述的非水电解液。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21896794.1A EP4199168A1 (en) | 2020-11-25 | 2021-11-11 | Non-aqueous electrolyte solution and lithium battery |
US18/254,302 US20240014444A1 (en) | 2020-11-25 | 2021-11-11 | Non-aqueous electrolyte solution and lithium battery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011334924.7 | 2020-11-25 | ||
CN202011334924.7A CN112510259B (zh) | 2020-11-25 | 2020-11-25 | 一种非水电解液及锂电池 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022111293A1 true WO2022111293A1 (zh) | 2022-06-02 |
Family
ID=74958435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/130047 WO2022111293A1 (zh) | 2020-11-25 | 2021-11-11 | 一种非水电解液及锂电池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240014444A1 (zh) |
EP (1) | EP4199168A1 (zh) |
CN (1) | CN112510259B (zh) |
WO (1) | WO2022111293A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116190794A (zh) * | 2023-04-27 | 2023-05-30 | 广州天赐高新材料股份有限公司 | 非水电解液及含有该非水电解液的锂离子电池 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111656595B (zh) * | 2018-01-30 | 2024-01-05 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池及组件 |
CN112510259B (zh) * | 2020-11-25 | 2022-04-22 | 张家港市国泰华荣化工新材料有限公司 | 一种非水电解液及锂电池 |
CN115911544B (zh) * | 2021-08-16 | 2024-03-01 | 张家港市国泰华荣化工新材料有限公司 | 一种非水电解液及锂电池 |
CN115732755B (zh) * | 2021-08-30 | 2024-06-25 | 张家港市国泰华荣化工新材料有限公司 | 一种电解液及使用该电解液的二次电池 |
CN116154281A (zh) | 2021-11-22 | 2023-05-23 | 张家港市国泰华荣化工新材料有限公司 | 非水电解液及含有该非水电解液的高电压锂电池 |
KR20240064421A (ko) * | 2022-11-04 | 2024-05-13 | 주식회사 엘지에너지솔루션 | 리튬 이차전지 |
WO2024136572A1 (ko) * | 2022-12-22 | 2024-06-27 | 주식회사 엘지에너지솔루션 | 비수 전해질 및 이를 포함하는 리튬 이차전지 |
KR20240100158A (ko) * | 2022-12-22 | 2024-07-01 | 주식회사 엘지에너지솔루션 | 리튬 이차전지 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1961452A (zh) * | 2004-05-28 | 2007-05-09 | 宇部兴产株式会社 | 非水电解质溶液及使用该溶液的锂二次电池 |
CN101981749A (zh) * | 2008-04-02 | 2011-02-23 | 宇部兴产株式会社 | 锂电池用非水电解液以及使用了该非水电解液的锂电池 |
US20110281177A1 (en) * | 2010-05-13 | 2011-11-17 | Us Government As Represented By Secretary Of The Army | Nonaqueous electrolyte solvents and additives |
CN103477492A (zh) * | 2011-04-11 | 2013-12-25 | 宇部兴产株式会社 | 非水电解液及使用该非水电解液的蓄电设备 |
CN109361017A (zh) * | 2018-10-15 | 2019-02-19 | 杉杉新材料(衢州)有限公司 | 一种复合型锂离子电池电解液及包含该电解液的锂离子电池 |
CN110582883A (zh) * | 2017-08-24 | 2019-12-17 | 株式会社Lg化学 | 锂二次电池用非水性电解质溶液和包含其的锂二次电池 |
CN111433964A (zh) * | 2017-12-01 | 2020-07-17 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池和组件 |
CN111557061A (zh) * | 2018-01-30 | 2020-08-18 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池及组件 |
CN111656595A (zh) * | 2018-01-30 | 2020-09-11 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池及组件 |
CN112510259A (zh) * | 2020-11-25 | 2021-03-16 | 张家港市国泰华荣化工新材料有限公司 | 一种非水电解液及锂电池 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101290877B1 (ko) * | 2003-07-17 | 2013-08-07 | 우베 고산 가부시키가이샤 | 리튬 이차전지 |
KR20120124424A (ko) * | 2010-02-03 | 2012-11-13 | 우베 고산 가부시키가이샤 | 비수 전해액, 그것을 이용한 전기화학 소자, 및 그것에 이용되는 알킨일 화합물 |
CN109411818A (zh) * | 2018-11-01 | 2019-03-01 | 安徽兴锂新能源有限公司 | 一种可改善负极成膜的锂离子电池电解液 |
-
2020
- 2020-11-25 CN CN202011334924.7A patent/CN112510259B/zh active Active
-
2021
- 2021-11-11 EP EP21896794.1A patent/EP4199168A1/en active Pending
- 2021-11-11 US US18/254,302 patent/US20240014444A1/en active Pending
- 2021-11-11 WO PCT/CN2021/130047 patent/WO2022111293A1/zh active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1961452A (zh) * | 2004-05-28 | 2007-05-09 | 宇部兴产株式会社 | 非水电解质溶液及使用该溶液的锂二次电池 |
CN101981749A (zh) * | 2008-04-02 | 2011-02-23 | 宇部兴产株式会社 | 锂电池用非水电解液以及使用了该非水电解液的锂电池 |
US20110281177A1 (en) * | 2010-05-13 | 2011-11-17 | Us Government As Represented By Secretary Of The Army | Nonaqueous electrolyte solvents and additives |
CN103477492A (zh) * | 2011-04-11 | 2013-12-25 | 宇部兴产株式会社 | 非水电解液及使用该非水电解液的蓄电设备 |
CN110582883A (zh) * | 2017-08-24 | 2019-12-17 | 株式会社Lg化学 | 锂二次电池用非水性电解质溶液和包含其的锂二次电池 |
CN111433964A (zh) * | 2017-12-01 | 2020-07-17 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池和组件 |
CN111557061A (zh) * | 2018-01-30 | 2020-08-18 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池及组件 |
CN111656595A (zh) * | 2018-01-30 | 2020-09-11 | 大金工业株式会社 | 电解液、电化学器件、锂离子二次电池及组件 |
JP6974767B2 (ja) * | 2018-01-30 | 2021-12-01 | ダイキン工業株式会社 | 電解液、電気化学デバイス、リチウムイオン二次電池及びモジュール |
CN109361017A (zh) * | 2018-10-15 | 2019-02-19 | 杉杉新材料(衢州)有限公司 | 一种复合型锂离子电池电解液及包含该电解液的锂离子电池 |
CN112510259A (zh) * | 2020-11-25 | 2021-03-16 | 张家港市国泰华荣化工新材料有限公司 | 一种非水电解液及锂电池 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116190794A (zh) * | 2023-04-27 | 2023-05-30 | 广州天赐高新材料股份有限公司 | 非水电解液及含有该非水电解液的锂离子电池 |
Also Published As
Publication number | Publication date |
---|---|
CN112510259B (zh) | 2022-04-22 |
EP4199168A1 (en) | 2023-06-21 |
US20240014444A1 (en) | 2024-01-11 |
CN112510259A (zh) | 2021-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2022111293A1 (zh) | 一种非水电解液及锂电池 | |
WO2021110165A1 (zh) | 一种低内阻的锂二次电池电解液及锂二次电池 | |
KR20170118206A (ko) | 비수전해액 전지용 전해액, 및 이것을 이용한 비수전해액 전지 | |
CN110707360B (zh) | 一种锂离子电池电解液、锂离子电池及应用 | |
WO2023272864A1 (zh) | 电解液及其制备方法、锂离子电池 | |
CN112310477B (zh) | 一种防过充锂离子电池电解液 | |
WO2022267391A1 (zh) | 电解液添加剂、非水电解液及其锂离子电池 | |
CN111883830A (zh) | 一种锂离子电池电解液以及电池负极和电化学储能器件 | |
WO2023020314A1 (zh) | 一种非水电解液及锂电池 | |
WO2023241349A1 (zh) | 一种非水电解液及锂电池 | |
WO2022199163A1 (zh) | 非水电解液添加剂、非水电解液及锂离子电池 | |
US20240213538A1 (en) | Non-aqueous electrolyte and lithium-ion battery comprising non-aqueous electrolyte | |
WO2023179324A1 (zh) | 一种含氟代苯碳酸酯的电解液及由该电解液组成的电池 | |
WO2023087536A1 (zh) | 电解液添加剂组合物、电解液及锂二次电池 | |
CN110010955A (zh) | 锂离子电池电解液及锂离子电池 | |
WO2023087648A1 (zh) | 非水电解液及含有该非水电解液的高电压锂电池 | |
CN115172879A (zh) | 一种锂离子电池电解液及含有该电解液的锂离子电池 | |
CN114583264B (zh) | 电解液添加剂、电解液及锂离子电池 | |
CN112186253B (zh) | 一种锂离子电池非水电解液以及锂离子电池 | |
CN110858665A (zh) | 一种锂离子电池电解液及其应用 | |
CN115241531A (zh) | 一种适用于低温环境的电解液及其应用 | |
CN111584930B (zh) | 一种锂离子电池电解液及锂离子电池 | |
CN112490503A (zh) | 电解液添加剂、电解液、锂离子电池 | |
CN111883842A (zh) | 一种非水电解液用功能非水性有机添加剂 | |
CN111244550A (zh) | 用于高镍体系的锂离子电池电解液添加剂及电解液和电池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21896794 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021896794 Country of ref document: EP Effective date: 20230315 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18254302 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |