WO2022111344A1 - Électrolyte non aqueux et batterie au lithium-ion - Google Patents
Électrolyte non aqueux et batterie au lithium-ion Download PDFInfo
- Publication number
- WO2022111344A1 WO2022111344A1 PCT/CN2021/131053 CN2021131053W WO2022111344A1 WO 2022111344 A1 WO2022111344 A1 WO 2022111344A1 CN 2021131053 W CN2021131053 W CN 2021131053W WO 2022111344 A1 WO2022111344 A1 WO 2022111344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbonate
- structural formula
- unsaturated
- hydrocarbon group
- aqueous electrolyte
- Prior art date
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 38
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 32
- 239000003792 electrolyte Substances 0.000 claims abstract description 44
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 23
- 239000000654 additive Substances 0.000 claims abstract description 23
- 125000002619 bicyclic group Chemical group 0.000 claims abstract description 19
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 45
- -1 neobutyl Chemical group 0.000 claims description 24
- 230000000996 additive effect Effects 0.000 claims description 18
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 18
- 239000007773 negative electrode material Substances 0.000 claims description 18
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 13
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 12
- 238000005056 compaction Methods 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- 150000008282 halocarbons Chemical group 0.000 claims description 6
- 125000005843 halogen group Chemical group 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 claims description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 4
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 claims description 4
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 3
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 claims description 3
- DSMUTQTWFHVVGQ-UHFFFAOYSA-N 4,5-difluoro-1,3-dioxolan-2-one Chemical compound FC1OC(=O)OC1F DSMUTQTWFHVVGQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910013063 LiBF 4 Inorganic materials 0.000 claims description 3
- 229910013684 LiClO 4 Inorganic materials 0.000 claims description 3
- 229910013872 LiPF Inorganic materials 0.000 claims description 3
- 229910012258 LiPO Inorganic materials 0.000 claims description 3
- 101150058243 Lipf gene Proteins 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- LEGITHRSIRNTQV-UHFFFAOYSA-N carbonic acid;3,3,3-trifluoroprop-1-ene Chemical compound OC(O)=O.FC(F)(F)C=C LEGITHRSIRNTQV-UHFFFAOYSA-N 0.000 claims description 3
- 150000007942 carboxylates Chemical class 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000001188 haloalkyl group Chemical group 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000005394 methallyl group Chemical group 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 claims description 3
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- XDJSUFKXJGFOKY-UHFFFAOYSA-N 1,3-dioxolan-2-one;ethene Chemical compound C=C.O=C1OCCO1 XDJSUFKXJGFOKY-UHFFFAOYSA-N 0.000 claims description 2
- SVTMLGIQJHGGFK-UHFFFAOYSA-N carbonic acid;propa-1,2-diene Chemical compound C=C=C.OC(O)=O SVTMLGIQJHGGFK-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 14
- 238000003860 storage Methods 0.000 abstract description 10
- 230000001351 cycling effect Effects 0.000 abstract description 6
- 230000008961 swelling Effects 0.000 abstract description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 9
- 238000007600 charging Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 7
- 239000007774 positive electrode material Substances 0.000 description 6
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 5
- 229910013716 LiNi Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- ZPFAVCIQZKRBGF-UHFFFAOYSA-N 1,3,2-dioxathiolane 2,2-dioxide Chemical compound O=S1(=O)OCCO1 ZPFAVCIQZKRBGF-UHFFFAOYSA-N 0.000 description 3
- 238000004737 colorimetric analysis Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910013733 LiCo Inorganic materials 0.000 description 2
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 239000011883 electrode binding agent Substances 0.000 description 2
- VEWLDLAARDMXSB-UHFFFAOYSA-N ethenyl sulfate;hydron Chemical compound OS(=O)(=O)OC=C VEWLDLAARDMXSB-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- ZVYSYCLZXICWLH-UHFFFAOYSA-N 1,3-dioxetan-2-one Chemical compound O=C1OCO1 ZVYSYCLZXICWLH-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940125773 compound 10 Drugs 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 150000003623 transition metal compounds Chemical class 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the electrolyte During the first charge and discharge process of the electrolyte, the electrolyte will be partially decomposed, thereby forming a passivation film on the surface of the electrode material, which is called the solid electrolyte interface film (SEI).
- SEI solid electrolyte interface film
- the chemical composition and structure of the SEI film play a key role in improving the working voltage, working temperature and cycle life of the battery. Optimizing the composition of SEI films by adding small amounts of additives is the most economical and convenient way to improve battery performance.
- the cyclic sulfate shown in structural formula 3 includes one or more of the following compounds:
- the additive amount is 1-10%;
- the fluorinated cyclic carbonate includes one or more of fluoroethylene carbonate, trifluoromethyl ethylene carbonate and difluoroethylene carbonate;
- the content of the cyclic sultone is 0.01% to 5%.
- R 10 , R 11 , R 12 , and R 13 are each independently selected from a hydrogen atom, a halogen atom, a C1-C3 saturated hydrocarbon group, an oxygen-containing hydrocarbon group, a silicon-containing hydrocarbon group or a cyano-substituted hydrocarbon group.
- the additive is added in an amount of 1-10% based on 100% of the total mass of the non-aqueous electrolyte.
- the content of the fluorinated cyclic carbonate is 0.01% to 5%.
- the negative electrode material layer further includes a positive electrode conductive agent and a positive electrode binder.
- the positive electrode further includes a positive electrode current collector for drawing current, and the positive electrode material layer is attached to the positive electrode current collector.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
La présente invention concerne un électrolyte non aqueux pour résoudre les problèmes de performance de cyclage à haute température insuffisante et de gonflement de batterie dans des batteries au lithium-ion existantes. L'électrolyte non aqueux comprend un solvant, un sel électrolytique, et des additifs. Les additifs comprennent un phosphate insaturé représenté par la formule structurale (1), un carbonate bicyclique représenté par la formule structurale (2), et un sulfate cyclique représenté par la formule structurale (3). L'invention concerne en outre une batterie au lithium-ion comprenant l'électrolyte non aqueux. L'électrolyte non aqueux de la présente invention, lorsqu'il est appliqué à une batterie au lithium-ion, présente une performance de cyclage à haute température à long terme améliorée, une performance de stockage à haute température à long terme améliorée et des taux d'expansion de volume réduits. L'électrolyte présente une bonne stabilité en cyclage à long terme.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339335.8A CN112271337A (zh) | 2020-11-25 | 2020-11-25 | 一种非水电解液及锂离子电池 |
| CN202011339335.8 | 2020-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022111344A1 true WO2022111344A1 (fr) | 2022-06-02 |
Family
ID=74340863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/131053 WO2022111344A1 (fr) | 2020-11-25 | 2021-11-17 | Électrolyte non aqueux et batterie au lithium-ion |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112271337A (fr) |
| WO (1) | WO2022111344A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116435601A (zh) * | 2023-06-14 | 2023-07-14 | 广州天赐高新材料股份有限公司 | 一种电解液及其应用 |
| WO2024055794A1 (fr) * | 2022-09-13 | 2024-03-21 | 深圳新宙邦科技股份有限公司 | Batterie au lithium-ion |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271337A (zh) * | 2020-11-25 | 2021-01-26 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
| CN115207462A (zh) * | 2021-04-13 | 2022-10-18 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
| JPWO2022255224A1 (fr) * | 2021-06-04 | 2022-12-08 | ||
| CN115706255A (zh) * | 2021-08-09 | 2023-02-17 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及电池 |
| CN113659206B (zh) * | 2021-08-13 | 2023-05-09 | 深圳新宙邦科技股份有限公司 | 一种高压实锂离子电池 |
| KR20230054310A (ko) | 2021-10-13 | 2023-04-24 | 선천 캡쳄 테크놀로지 컴퍼니 리미티드 | 이차 전지 |
| CN113644275B (zh) * | 2021-10-13 | 2022-02-22 | 深圳新宙邦科技股份有限公司 | 一种二次电池 |
| CN116365024A (zh) * | 2021-12-28 | 2023-06-30 | 南通新宙邦电子材料有限公司 | 锂离子电池 |
| CN114068936B (zh) * | 2022-01-14 | 2022-05-03 | 深圳新宙邦科技股份有限公司 | 锂离子电池 |
| CN114094109B (zh) * | 2022-01-19 | 2022-05-03 | 深圳新宙邦科技股份有限公司 | 锂离子电池 |
| CN114552004A (zh) * | 2022-01-21 | 2022-05-27 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及二次电池 |
| CN114583270B (zh) * | 2022-01-25 | 2023-12-15 | 深圳新宙邦科技股份有限公司 | 一种锂离子电池 |
| CN114639872B (zh) * | 2022-02-21 | 2024-04-05 | 深圳新宙邦科技股份有限公司 | 一种锂离子电池 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007035413A (ja) * | 2005-07-26 | 2007-02-08 | Toshiba Corp | 非水電解質二次電池及び電池パック |
| JP2016213015A (ja) * | 2015-05-01 | 2016-12-15 | 三井化学株式会社 | 電池用非水電解液、及びリチウム二次電池 |
| CN106953118A (zh) * | 2016-11-25 | 2017-07-14 | 惠州市宙邦化工有限公司 | 一种用于锂离子电池的非水电解液和锂离子电池 |
| CN108258310A (zh) * | 2016-12-29 | 2018-07-06 | 深圳新宙邦科技股份有限公司 | 锂离子电池非水电解液及锂离子电池 |
| CN108808066A (zh) * | 2017-04-28 | 2018-11-13 | 深圳新宙邦科技股份有限公司 | 锂离子电池非水电解液和锂离子电池 |
| CN109950620A (zh) * | 2017-12-20 | 2019-06-28 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
| CN112271337A (zh) * | 2020-11-25 | 2021-01-26 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3760540B2 (ja) * | 1996-12-25 | 2006-03-29 | 三菱化学株式会社 | リチウム二次電池用電解液 |
| CN108933291B (zh) * | 2017-05-22 | 2020-03-27 | 深圳新宙邦科技股份有限公司 | 锂离子电池非水电解液和锂离子电池 |
-
2020
- 2020-11-25 CN CN202011339335.8A patent/CN112271337A/zh active Pending
-
2021
- 2021-11-17 WO PCT/CN2021/131053 patent/WO2022111344A1/fr active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007035413A (ja) * | 2005-07-26 | 2007-02-08 | Toshiba Corp | 非水電解質二次電池及び電池パック |
| JP2016213015A (ja) * | 2015-05-01 | 2016-12-15 | 三井化学株式会社 | 電池用非水電解液、及びリチウム二次電池 |
| CN106953118A (zh) * | 2016-11-25 | 2017-07-14 | 惠州市宙邦化工有限公司 | 一种用于锂离子电池的非水电解液和锂离子电池 |
| CN108258310A (zh) * | 2016-12-29 | 2018-07-06 | 深圳新宙邦科技股份有限公司 | 锂离子电池非水电解液及锂离子电池 |
| CN108808066A (zh) * | 2017-04-28 | 2018-11-13 | 深圳新宙邦科技股份有限公司 | 锂离子电池非水电解液和锂离子电池 |
| CN109950620A (zh) * | 2017-12-20 | 2019-06-28 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
| CN112271337A (zh) * | 2020-11-25 | 2021-01-26 | 深圳新宙邦科技股份有限公司 | 一种非水电解液及锂离子电池 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024055794A1 (fr) * | 2022-09-13 | 2024-03-21 | 深圳新宙邦科技股份有限公司 | Batterie au lithium-ion |
| CN116435601A (zh) * | 2023-06-14 | 2023-07-14 | 广州天赐高新材料股份有限公司 | 一种电解液及其应用 |
| CN116435601B (zh) * | 2023-06-14 | 2024-03-22 | 广州天赐高新材料股份有限公司 | 一种电解液及其应用 |
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