CN109244545A - Novel lithium-ion battery electrolyte and lithium ion battery - Google Patents
Novel lithium-ion battery electrolyte and lithium ion battery Download PDFInfo
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- CN109244545A CN109244545A CN201811428741.4A CN201811428741A CN109244545A CN 109244545 A CN109244545 A CN 109244545A CN 201811428741 A CN201811428741 A CN 201811428741A CN 109244545 A CN109244545 A CN 109244545A
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- Prior art keywords
- lithium
- ion battery
- carbonate
- novel
- battery electrolyte
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 119
- 239000003792 electrolyte Substances 0.000 title claims abstract description 93
- 239000000654 additive Substances 0.000 claims abstract description 45
- 230000000996 additive effect Effects 0.000 claims abstract description 45
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 43
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 43
- -1 fluorophosphate ester Chemical class 0.000 claims abstract description 42
- 239000003960 organic solvent Substances 0.000 claims abstract description 41
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 claims abstract description 36
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical class O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims abstract description 35
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 27
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 27
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 27
- ZSTLPJLUQNQBDQ-UHFFFAOYSA-N azanylidyne(dihydroxy)-$l^{5}-phosphane Chemical compound OP(O)#N ZSTLPJLUQNQBDQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 150000004702 methyl esters Chemical class 0.000 claims abstract description 20
- 239000002253 acid Substances 0.000 claims description 27
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 claims description 27
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 8
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 7
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 7
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 125000006091 1,3-dioxolane group Chemical class 0.000 claims description 3
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 2
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 claims description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 2
- WDGKXRCNMKPDSD-UHFFFAOYSA-N lithium;trifluoromethanesulfonic acid Chemical compound [Li].OS(=O)(=O)C(F)(F)F WDGKXRCNMKPDSD-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
- 238000007796 conventional method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 239000010408 film Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 8
- QVEIFJBUBJUUMB-UHFFFAOYSA-N tetramethyl benzene-1,2,4,5-tetracarboxylate Chemical compound COC(=O)C1=CC(C(=O)OC)=C(C(=O)OC)C=C1C(=O)OC QVEIFJBUBJUUMB-UHFFFAOYSA-N 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 125000005587 carbonate group Chemical group 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003138 coordinated effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- OSNIIMCBVLBNGS-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-2-(dimethylamino)propan-1-one Chemical compound CN(C)C(C)C(=O)C1=CC=C2OCOC2=C1 OSNIIMCBVLBNGS-UHFFFAOYSA-N 0.000 description 1
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 1
- AOANMOLKQQXRCC-UHFFFAOYSA-N C(C)(=O)OC=C.C(O)(=O)F Chemical compound C(C)(=O)OC=C.C(O)(=O)F AOANMOLKQQXRCC-UHFFFAOYSA-N 0.000 description 1
- 235000009161 Espostoa lanata Nutrition 0.000 description 1
- 240000001624 Espostoa lanata Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000006257 cathode slurry Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- JQQCMCDVLAZJHZ-UHFFFAOYSA-N lithium;methanesulfonic acid Chemical compound [Li].CS(O)(=O)=O JQQCMCDVLAZJHZ-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of Novel lithium-ion battery electrolyte and lithium ion batteries.The Novel lithium-ion battery electrolyte includes organic solvent, lithium salts and additive, the additive includes fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid, wherein, the fluorinated ethylene carbonate, the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, four methyl esters of the lithium carbonate and the Pyromellitic Acid mass ratio be (2-4): (2-4): (4-6): (1-3): (1-3).The Novel lithium-ion battery electrolyte stability is high, service performance is good and highly-safe.
Description
Technical field
The present invention relates to technical field of lithium ion, more particularly to a kind of Novel lithium-ion battery electrolyte and lithium from
Sub- battery.
Background technique
Lithium ion battery has that energy density is high, have extended cycle life, self-discharge rate is small, memory-less effect and environmentally protective etc.
Advantage is widely used in the portable electronics device such as mobile phone, digital camera and laptop, while also gradually answering
With fields such as electric vehicle and hybrid electric vehicles.
Lithium ion battery mainly includes anode, cathode, diaphragm and electrolyte.Wherein, electrolyte is with ionic conduction
Property solution, realize the medium that migrates in positive and negative anodes of lithium ion, be component part important in battery.Electrolyte is to lithium-ion electric
Capacity, cycle performance, service life and the security performance in pond all have vital influence.
But stability of the electrolyte of conventional lithium ion battery under high temperature or low temperature environment is poor, and then lithium ion
The performance degradation of battery is serious, and cycle performance and service performance are all poor.In addition, conventional lithium ion battery easily overheats,
It even explodes, security performance is poor.
Summary of the invention
Based on this, it is necessary to provide that a kind of stability is high, service performance is good and highly-safe new type lithium ion battery is electric
Solve liquid and lithium ion battery.
A kind of Novel lithium-ion battery electrolyte, including organic solvent, lithium salts and additive, the additive include fluoro
Ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid, wherein the fluorine
For ethylene carbonate, the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, the lithium carbonate and the Pyromellitic Acid
The mass ratio of four methyl esters is (2-4): (2-4): (4-6): (1-3): (1-3).
The fluorinated ethylene carbonate, the fluorophosphate ester, five fluorine ring of the ethyoxyl in one of the embodiments,
The mass ratio of four methyl esters of phosphonitrile, the lithium carbonate and the Pyromellitic Acid is (2-3): (3-4): (4-5): (2-3): (1-
2)。
The fluorinated ethylene carbonate, the fluorophosphate ester, five fluorine ring of the ethyoxyl in one of the embodiments,
The mass ratio of four methyl esters of phosphonitrile, the lithium carbonate and the Pyromellitic Acid is 2:3:5:3:2.
Percent by volume of the additive in the Novel lithium-ion battery electrolyte in one of the embodiments,
For 2%-15%.
Concentration of the lithium salts in the Novel lithium-ion battery electrolyte is in one of the embodiments,
1.2mol/L-1.5mol/L。
The organic solvent is carbonate based organic solvent and/or ether organic solvent in one of the embodiments,.
The carbonate based organic solvent is ethylene carbonate, propene carbonate, carbonic acid two in one of the embodiments,
One of methyl esters, diethyl carbonate and methyl ethyl carbonate or a variety of and/or described ether organic solvent are dimethyl ether, tetrahydro
Furans, 2- methyltetrahydrofuran, 1,3- dioxolanes, dimethoxymethane, 1,2- dimethoxy-ethane and diethylene glycol dimethyl
One of ether is a variety of.
The lithium salts is lithium hexafluoro phosphate, LiBF4, hexafluoroarsenate lithium, perchloric acid in one of the embodiments,
One of lithium, dioxalic acid lithium borate and trifluoromethanesulfonic acid lithium are a variety of.
Novel lithium-ion battery electrolyte of the invention includes organic solvent, lithium salts and additive, which includes fluorine
For ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid.Wherein, described
Fluorinated ethylene carbonate, the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, the lithium carbonate and the equal benzene tetramethyl
The mass ratio of sour four methyl esters is (2-4): (2-4): (4-6): (1-3): (1-3).Pass through selection additive each component and control
It is matched, it is ensured that each component has preferable coordinated effect, and additive obtained is able to suppress the decomposition of electroanalysis solvent, also
Fine and close, stable solid-electrolyte interphace (SEI film) can be formed in electrode surface, effective protection electrode material is effectively reduced
Battery impedance improves battery cryogenic property, effectively improves the specific capacity and cycle performance of battery；The additive can also divide when heated
Solution generates phosphoric anhydride or phosphoric acid, and synthetic material dehydration carbonization reduces imflammable gas and generates, and can be covered on combustible surface
Contact of the combustible with oxygen can be obstructed when upper and then play fire retardation, so the additive have good anti-flammability and
Electrical stability can significantly improve the security performance of battery.
Therefore, the stability of the utility model lithium-ion battery electrolytes in the application is high, service performance is good and highly-safe.
In addition, there is a need to provide a kind of lithium ion battery.
A kind of lithium ion battery, including anode, cathode, diaphragm and above-mentioned Novel lithium-ion battery electrolyte.
The diaphragm is that polypropylene screen, polyethylene film, polypropylene, polyethylene/polypropylene are multiple in one of the embodiments,
It closes one or more in film, nylon cloth, glass fibre and asbestos paper.
The steadily qualitative height of the lithium ion battery, service performance are good and highly-safe.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.The present invention can be with many not
With form realize, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to this
The understanding of the disclosure of invention is more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
The Novel lithium-ion battery electrolyte includes organic solvent, lithium salts and additive.The additive includes fluoro carbon
Vinyl acetate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid.
The organic solvent is carbonate based organic solvent and/or ether organic solvent.Specifically, the carbonates are organic molten
Agent is one of ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate or a variety of.Tool
Body, which is dimethyl ether, tetrahydrofuran, 2- methyltetrahydrofuran, 1,3- dioxolanes, dimethoxy first
One of alkane, 1,2- dimethoxy-ethane and diethylene glycol dimethyl ether are a variety of.
The performance of the organic solvent is most important to the performance of electrolyte.The organic solvent include ethylene carbonate (EC),
Diethyl carbonate (DEC), dimethyl carbonate (DMC), methyl ethyl carbonate (EMC), propene carbonate (PC), glycol dimethyl ether
(DME) equal solvent.Stable SEI film can be wherein set up in EC or EC+DMC composite electrolyte.The EC and a kind of chain carbonic acid
The mixed solvent of ester is the excellent electrolyte of lithium ion battery, such as EC+DMC, EC+DEC.When PC is used for the additive being adapted to
Lithium ion battery is conducive to the cryogenic property for improving battery.Preferably, which wants strict control of quality before use.
Specifically, the purity of the organic solvent is 99.9% or more, and moisture content is in 10*l0-6Below.The purity and burning voltage of solvent
Between have close ties.The oxidizing potential of the better organic solvent of purity is in 5V or so, and the oxidizing potential of organic solvent is for lithium
The overcharging of ion battery, safety has significant impact.The moisture of organic solvent electrolyte qualified for preparation has decisive
It influences.When moisture is controlled in 10*l0-6When following, the decomposition of lithium salts can reduce, slow down the decomposition of SEI film and prevent battery
Gas rises.Generally using molecular sieve absorption, normal pressure or rectification under vacuum, the control Water in Organic Solvents point that the methods of is passed through inert gas
Content.
The lithium salts is lithium hexafluoro phosphate, LiBF4, hexafluoroarsenate lithium, lithium perchlorate, dioxalic acid lithium borate and trifluoro
One of methanesulfonic acid lithium etc. is a variety of.The electricity and chemical stability of above-mentioned lithium salts are all preferable, exist with electrode active material
It is all stabilized in voltage range, electrochemistry pair does not occur with electrode active material, collector in lithium ion battery charge and discharge
Reaction.The lithium salts all has higher solubility and degree of dissociation in organic solvent at different temperatures, it is ensured that in wide temperature
All there is preferable conductivity in range.The thermal stability of the lithium salts is also good, it is ensured that lithium ion battery has preferable safety
Performance.In addition, the lithium salts effect on environment is less, and cost-effective, it is easy to industrial application.Optionally, the lithium salts is new at this
Concentration in type lithium-ion battery electrolytes is 1.2mol/L-1.5mol/L.
In the additive fluorinated ethylene carbonate, the fluorophosphate ester, the five fluorine ring phosphonitrile of ethyoxyl, the lithium carbonate with
And the mass ratio of four methyl esters of Pyromellitic Acid is (2-4): (2-4): (4-6): (1-3): (1-3).Optionally, the fluoro carbonic acid
Vinyl acetate, the fluorophosphate ester, the five fluorine ring phosphonitrile of ethyoxyl, the lithium carbonate and four methyl esters of Pyromellitic Acid mass ratio
For (2-3): (3-4): (4-5): (2-3): (1-2).Specifically, the fluorinated ethylene carbonate, the fluorophosphate ester, the ethyoxyl
The mass ratio of five fluorine ring phosphonitriles, the lithium carbonate and four methyl esters of Pyromellitic Acid is 2:3:5:3:2.
In one embodiment, percent by volume of the additive in the Novel lithium-ion battery electrolyte is 2%-
15%.Optionally, percent by volume of the additive in the Novel lithium-ion battery electrolyte is 8%-12%.
Novel lithium-ion battery electrolyte of the invention includes organic solvent, lithium salts and additive, which includes fluorine
For ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid.Wherein, the fluorine
For ethylene carbonate, the fluorophosphate ester, the five fluorine ring phosphonitrile of ethyoxyl, the lithium carbonate and four methyl esters of Pyromellitic Acid
Mass ratio is (2-4): (2-4): (4-6): (1-3): (1-3).By selection additive each component and control its proportion, it is ensured that
Each component has preferable coordinated effect, and additive obtained is able to suppress the decomposition of electroanalysis solvent, can also be in electrode table
Face forms fine and close, stable solid-electrolyte interphace (SEI film), and effective protection electrode material significantly reduces battery impedance, changes
Kind battery cryogenic property, effectively improves the specific capacity and cycle performance of battery；The additive can also decompose generation phosphoric acid when heated
Acid anhydride or phosphoric acid, synthetic material dehydration carbonization, can hinder when reducing imflammable gas and generate, and can be covered in combustible surface
Every contact of the combustible with oxygen and then fire retardation is played, and then the additive has good anti-flammability and electrical stability,
It can significantly improve the security performance of battery.
Therefore, the stability of the utility model lithium-ion battery electrolytes in the application is high, service performance is good and highly-safe.
The application is not particularly limited the preparation method of the lithium-ion electrolyte, can use those skilled in the art
The well known method for preparing electrolyte prepares electrolyte.Specifically, organic solvent, lithium salts and additive are mixed, stirring is equal
It is even, obtain Novel lithium-ion battery electrolyte.
In addition, there is a need to provide a kind of lithium ion battery.
The lithium ion battery includes anode, cathode, diaphragm and above-mentioned Novel lithium-ion battery electrolyte.
The diaphragm is polypropylene screen, polyethylene film, polypropylene, polyethylene/polypropylene composite materials in one of the embodiments,
It is one or more in film, nylon cloth, glass fibre and asbestos paper.
Preparation method the application of above-mentioned lithium ion battery is also not particularly limited, according to known to those skilled in the art
Method prepared.
Specifically, the lithium ion battery preparation method the following steps are included:
1) mixed respectively with powdered positive and negative anodes active material with special solvent and binder, it is agitated uniformly after,
The positive and negative anodes substance being slurried.
2) anode and cathode slurry is uniformly coated on by metal foil surface by automatic coating machine respectively, after drying automatically certainly
Anode pole piece and cathode pole piece is made in dynamic shearing.
3) press positive plate, diaphragm, negative electrode tab, the rolled injection electrolyte of the top-down sequence of diaphragm, by chemical conversion, it is quiet
It sets, finished product lithium ion battery is made in the processes such as partial volume.
The steadily qualitative height of the lithium ion battery, service performance are good and highly-safe.
Specific embodiment
Embodiment 1
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 2:2:4:1:1 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (vinyl carbonate), is uniformly mixed, Novel lithium-ion battery electrolyte 1 is made, wherein the lithium salts (dioxalic acid lithium borate)
Dosage is 1.3mol/L, and the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 1 is prepared using above-mentioned Novel lithium-ion battery electrolyte 1 using conventional method.
Embodiment 2
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 4:4:6:3:3 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (vinyl carbonate), is uniformly mixed, Novel lithium-ion battery electrolyte 2 is made, wherein the lithium salts (dioxalic acid lithium borate)
Dosage is 1.3mol/L, and the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 2 is prepared using above-mentioned Novel lithium-ion battery electrolyte 2 using conventional method.
Embodiment 3
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 2:3:5:3:2 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (methyl ethyl carbonate), is uniformly mixed, Novel lithium-ion battery electrolyte 3 is made, wherein the lithium salts (dioxalic acid lithium borate)
Dosage is 1.3mol/L, and the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 3 is prepared using above-mentioned Novel lithium-ion battery electrolyte 3 using conventional method.
Embodiment 4
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 2:3:4:2:1 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (methyl ethyl carbonate), is uniformly mixed, Novel lithium-ion battery electrolyte 4 is made, wherein the lithium salts (dioxalic acid lithium borate)
Dosage is 1.3mol/L, and the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 4 is prepared using above-mentioned Novel lithium-ion battery electrolyte 4 using conventional method.
Embodiment 5
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 3:4:5:3:2 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (methyl ethyl carbonate), is uniformly mixed, Novel lithium-ion battery electrolyte 5 is made, wherein the lithium salts (dioxalic acid lithium borate)
Dosage is 1.3mol/L, and the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 5 is prepared using above-mentioned Novel lithium-ion battery electrolyte 5 using conventional method.
Embodiment 6
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 2:3:5:3:2 in mass ratio configures to obtain additive, and by additive, lithium salts, (lithium salts includes lithium hexafluoro phosphate and dioxalic acid
Lithium borate, and lithium hexafluoro phosphate and the mass ratio of dioxalic acid lithium borate are 3:2) being added to organic solvent, (organic solvent includes
Ethylene carbonate, propene carbonate and dimethyl carbonate, and the quality of ethylene carbonate, propene carbonate and dimethyl carbonate
Than Novel lithium-ion battery electrolyte 6 is made to be uniformly mixed in 5:3:2), wherein the dosage of the lithium salts is 1.5mol/L,
The dosage of the additive accounts for the 10% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 6 is prepared using above-mentioned Novel lithium-ion battery electrolyte 6 using conventional method.
Comparative example 1
Fluorinated ethylene carbonate, lithium salts (dioxalic acid lithium borate) are added in organic solvent (methyl ethyl carbonate), mixed
Uniformly, lithium-ion battery electrolytes 1 are made, wherein the dosage of the lithium salts (dioxalic acid lithium borate) is 1.3mol/L, the fluoro carbon
The dosage of vinyl acetate accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 7 is prepared using above-mentioned lithium-ion battery electrolytes 1 using conventional method.
Comparative example 2
Fluorophosphate ester, lithium salts (dioxalic acid lithium borate) are added in organic solvent (methyl ethyl carbonate), are uniformly mixed,
Lithium-ion battery electrolytes 2 are made, wherein the dosage of the lithium salts (dioxalic acid lithium borate) is 1.3mol/L, the fluorophosphate ester
Dosage account for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 8 is prepared using above-mentioned lithium-ion battery electrolytes 2 using conventional method.
Comparative example 3
Five fluorine ring phosphonitrile of ethyoxyl, lithium salts (dioxalic acid lithium borate) are added in organic solvent (methyl ethyl carbonate), mixed
It closes uniformly, lithium-ion battery electrolytes 3 is made, wherein the dosage of the lithium salts (dioxalic acid lithium borate) is 1.3mol/L, the ethoxy
The dosage of five fluorine ring phosphonitrile of base accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 9 is prepared using above-mentioned lithium-ion battery electrolytes 3 using conventional method.
Comparative example 4
Lithium carbonate, lithium salts (dioxalic acid lithium borate) are added in organic solvent (methyl ethyl carbonate), are uniformly mixed, is made
Lithium-ion battery electrolytes 4, wherein the dosage of the lithium salts (dioxalic acid lithium borate) is 1.3mol/L, and the dosage of the lithium carbonate accounts for
The 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 10 is prepared using above-mentioned lithium-ion battery electrolytes 4 using conventional method.
Comparative example 5
Four methyl esters of Pyromellitic Acid, lithium salts (dioxalic acid lithium borate) are added in organic solvent (methyl ethyl carbonate), mixed
It closes uniformly, lithium-ion battery electrolytes 5 is made, wherein the dosage of the lithium salts (dioxalic acid lithium borate) is 1.3mol/L, the carbonic acid
The dosage of lithium accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 11 is prepared using above-mentioned lithium-ion battery electrolytes 5 using conventional method.
Comparative example 6
By fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, lithium carbonate and Pyromellitic Acid tetramethyl
Ester 6:6:7:5:5 in mass ratio configures to obtain additive, and additive, lithium salts (dioxalic acid lithium borate) are added to organic solvent
It in (methyl ethyl carbonate), is uniformly mixed, lithium-ion battery electrolytes 6 is made, wherein the dosage of the lithium salts (dioxalic acid lithium borate)
For 1.3mol/L, the dosage of the additive accounts for the 8% of the Novel lithium-ion battery electrolyte gross mass.
Lithium ion battery 12 is prepared using above-mentioned Novel lithium-ion battery electrolyte 6 using conventional method.
Performance evaluation example
1. the electrolyte property test evaluation method of the present invention and comparative example is as follows:
1) flame retardant property is evaluated
The method according to specified in UL94HB is defined, and noninflammability quartz fibre (glass fibre) is immersed 1.0mL's
In electrolyte, the test film of 127mmX12.7mm is prepared, by test film in atmospheric environment down-firing, if the flame after igniting is not
The 25mm line of device is reached, and dropping kindling from network is also confirmed, that is, is defined as with flame retardancy；As do not found
Fiery (the long 0mm of flame) phenomenon, that is, be defined as with noninflammability.
In the present invention, electrolyte is evaluated using self-extinguishing time (Self-extinguishing time, abbreviation SET)
Flame retardant property.
Self-extinguishing time test: the glass cotton balls that diameter is 5mm is weighed, and is placed on the thin wire for being converted into 0 type, with note
Then emitter is lighted rapidly toward the electrolyte of injection certain mass on mineral wool with igniter, record igniter is moved
To the time of flame automatic distinguishing after opening, which is self-extinguishing time.Using the self-extinguishing time of unit mass electrolyte as standard,
Compare the flame retardant property of different electrolytes.
2) measurement of conductivity
Measure the conductivity of 50 DEG C, 25 DEG C, 0 DEG C, -25 DEG C and -50 DEG C electrolyte respectively using conductivity meter.
2. the present invention and comparative example electrolyte assembling lithium ion battery evaluation method is as follows:
1) cycle performance is evaluated
Charging procedure: 1C constant-current charge to 4.2V, cut-off charging when then constant-voltage charge to electric current is 0.02C；
Discharge procedures: 1C constant-current discharge to 2.75V；
It after being charged and discharged cut-off, shelves 8 minutes, so circulation 1000 weeks.Investigate battery initial discharge capacity and
The capacity retention ratio of battery after circulation.
2) high rate performance is evaluated
It is charged the battery with the charging current of 1C, is then discharged with the discharge current of 1C-10C, investigate battery
Discharge capacitance under the conditions of different discharge-rates.
3) security performance evaluation
The safety detecting methods such as battery 3CI0V is overcharged, short-circuit, needle pierces are carried out by professional standard.
The conductivity of the electrolyte 1-6 of Novel lithium-ion battery electrolyte 1-6 and comparative example of the invention, stability and from
Putting out the time see the table below 1；
The lithium-ion electric that the electrolyte 1-6 of Novel lithium-ion battery electrolyte 1-6 and comparative example of the invention are assembled respectively
The performance in pond see the table below 2.
The conductivity and stability test result of 1 new type lithium ion battery of table
The performance test results of 2 lithium ion battery of table
Note: battery design capacity 8000mAh
By Tables 1 and 2 data it is found that the lithium ion battery 1-6 that the Novel lithium-ion battery electrolyte of embodiment 1-6 assembles
Capacitance conservation rate height, good rate capability and the cyclicity of electrolyte assembling lithium ion battery 7-12 relative to comparative example 1-6
Can be good, there is superior service performance.And lithium ion battery 1-6 is more preferable relative to the stability of lithium ion battery 7-12,
Safety is higher.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of Novel lithium-ion battery electrolyte, which is characterized in that including organic solvent, lithium salts and additive, the addition
Agent includes fluorinated ethylene carbonate, fluorophosphate ester, five fluorine ring phosphonitrile of ethyoxyl, four methyl esters of lithium carbonate and Pyromellitic Acid,
Wherein, the fluorinated ethylene carbonate, the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, the lithium carbonate and institute
The mass ratio for stating four methyl esters of Pyromellitic Acid is (2-4): (2-4): (4-6): (1-3): (1-3).
2. Novel lithium-ion battery electrolyte according to claim 1, which is characterized in that the fluorinated ethylene carbonate,
The quality of the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, four methyl esters of the lithium carbonate and the Pyromellitic Acid
Than for (2-3): (3-4): (4-5): (2-3): (1-2).
3. Novel lithium-ion battery electrolyte according to claim 1, which is characterized in that the fluorinated ethylene carbonate,
The quality of the fluorophosphate ester, five fluorine ring phosphonitrile of the ethyoxyl, four methyl esters of the lithium carbonate and the Pyromellitic Acid
Than for 2:3:5:3:2.
4. Novel lithium-ion battery electrolyte according to claim 1, which is characterized in that the additive is described new
Percent by volume in type lithium-ion battery electrolytes is 2%-15%.
5. Novel lithium-ion battery electrolyte according to claim 1, which is characterized in that the lithium salts is described novel
Concentration in lithium-ion battery electrolytes is 1.2mol/L-1.5mol/L.
6. Novel lithium-ion battery electrolyte according to claim 1-5, which is characterized in that the organic solvent
For carbonate based organic solvent and/or ether organic solvent.
7. Novel lithium-ion battery electrolyte according to claim 6, which is characterized in that the carbonate based organic solvent
For one of ethylene carbonate, propene carbonate, dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate or a variety of, and/or
The ether organic solvent be dimethyl ether, tetrahydrofuran, 2- methyltetrahydrofuran, 1,3- dioxolanes, dimethoxymethane,
One of 1,2- dimethoxy-ethane and diethylene glycol dimethyl ether are a variety of.
8. Novel lithium-ion battery electrolyte according to claim 1-5, which is characterized in that the lithium salts is six
One of lithium fluophosphate, LiBF4, hexafluoroarsenate lithium, lithium perchlorate, dioxalic acid lithium borate and trifluoromethanesulfonic acid lithium or
It is a variety of.
9. a kind of lithium ion battery, which is characterized in that including anode, cathode, diaphragm and as described in claim any one of 1-8
Novel lithium-ion battery electrolyte.
10. lithium ion battery according to claim 9, which is characterized in that the diaphragm be polypropylene screen, polyethylene film,
It is one or more in polypropylene, polyethylene/polypropylene composite film, nylon cloth, glass fibre and asbestos paper.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994021A (en) * | 2019-11-19 | 2020-04-10 | 惠州市豪鹏科技有限公司 | Electrolyte additive, electrolyte and lithium ion battery |
| CN111430781A (en) * | 2020-05-06 | 2020-07-17 | 杉杉新材料（衢州）有限公司 | Ternary high-voltage lithium ion battery electrolyte and lithium ion battery thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519968A (en) * | 2003-01-30 | 2004-08-11 | 松下电器产业株式会社 | polymer electrolyte fuel cell |
| CN105556729A (en) * | 2013-04-04 | 2016-05-04 | 纳幕尔杜邦公司 | Nonaqueous electrolyte compositions |
| CN105870503A (en) * | 2016-04-29 | 2016-08-17 | 河南省法恩莱特新能源科技有限公司 | Lithium-ion battery electrolyte with high fire retardant and electrochemical properties and preparation method thereof |
| CN107666011A (en) * | 2016-07-28 | 2018-02-06 | 微宏动力系统（湖州）有限公司 | A kind of nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
| CN108352570A (en) * | 2015-10-22 | 2018-07-31 | 大金工业株式会社 | Electrolyte, electrochemical device, lithium rechargeable battery and component |
-
2018
- 2018-11-28 CN CN201811428741.4A patent/CN109244545A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519968A (en) * | 2003-01-30 | 2004-08-11 | 松下电器产业株式会社 | polymer electrolyte fuel cell |
| CN105556729A (en) * | 2013-04-04 | 2016-05-04 | 纳幕尔杜邦公司 | Nonaqueous electrolyte compositions |
| CN108352570A (en) * | 2015-10-22 | 2018-07-31 | 大金工业株式会社 | Electrolyte, electrochemical device, lithium rechargeable battery and component |
| CN105870503A (en) * | 2016-04-29 | 2016-08-17 | 河南省法恩莱特新能源科技有限公司 | Lithium-ion battery electrolyte with high fire retardant and electrochemical properties and preparation method thereof |
| CN107666011A (en) * | 2016-07-28 | 2018-02-06 | 微宏动力系统（湖州）有限公司 | A kind of nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery |
Non-Patent Citations (1)
| Title |
|---|
| 夏兰等: "锂离子电池高电压和耐燃电解液研究进展", 《化学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994021A (en) * | 2019-11-19 | 2020-04-10 | 惠州市豪鹏科技有限公司 | Electrolyte additive, electrolyte and lithium ion battery |
| CN111430781A (en) * | 2020-05-06 | 2020-07-17 | 杉杉新材料（衢州）有限公司 | Ternary high-voltage lithium ion battery electrolyte and lithium ion battery thereof |
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