CN109473713A - A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte - Google Patents
A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte Download PDFInfo
- Publication number
- CN109473713A CN109473713A CN201811553122.8A CN201811553122A CN109473713A CN 109473713 A CN109473713 A CN 109473713A CN 201811553122 A CN201811553122 A CN 201811553122A CN 109473713 A CN109473713 A CN 109473713A
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- additive
- high temperature
- temperature performance
- taking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 85
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 61
- 230000000996 additive effect Effects 0.000 claims abstract description 61
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000011356 non-aqueous organic solvent Substances 0.000 claims abstract description 11
- -1 nitrile compounds Chemical class 0.000 claims abstract description 8
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 7
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 7
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 150000002148 esters Chemical class 0.000 claims abstract description 4
- 125000000524 functional group Chemical group 0.000 claims abstract description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 8
- DGTVXEHQMSJRPE-UHFFFAOYSA-M difluorophosphinate Chemical group [O-]P(F)(F)=O DGTVXEHQMSJRPE-UHFFFAOYSA-M 0.000 claims description 8
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 8
- VLKZOEOYAKHREP-UHFFFAOYSA-N methyl pentane Natural products CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 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 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 5
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 claims description 5
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 5
- 150000002825 nitriles Chemical class 0.000 claims description 5
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 claims description 5
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 4
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- KIWBPDUYBMNFTB-UHFFFAOYSA-N Ethyl hydrogen sulfate Chemical compound CCOS(O)(=O)=O KIWBPDUYBMNFTB-UHFFFAOYSA-N 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 229960002645 boric acid Drugs 0.000 claims description 3
- 235000010338 boric acid Nutrition 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 125000006038 hexenyl group Chemical group 0.000 claims description 3
- 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 3
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 229940090181 propyl acetate Drugs 0.000 claims description 3
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 3
- MYRUXGCOHIYOBX-UHFFFAOYSA-K [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O.FOC(=O)C(=O)OF Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O.FOC(=O)C(=O)OF MYRUXGCOHIYOBX-UHFFFAOYSA-K 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- RBBHCPRMLRKOPI-UHFFFAOYSA-N C1OS(=O)(=O)CS(=O)(=O)O1.[Na] Chemical compound C1OS(=O)(=O)CS(=O)(=O)O1.[Na] RBBHCPRMLRKOPI-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000243 solution Substances 0.000 description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229910001290 LiPF6 Inorganic materials 0.000 description 2
- 229910012265 LiPO2F2 Inorganic materials 0.000 description 2
- QRMHDYCPNIVCBO-UHFFFAOYSA-N [SH2]=N.[F] Chemical compound [SH2]=N.[F] QRMHDYCPNIVCBO-UHFFFAOYSA-N 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- GWAOOGWHPITOEY-UHFFFAOYSA-N 1,5,2,4-dioxadithiane 2,2,4,4-tetraoxide Chemical compound O=S1(=O)CS(=O)(=O)OCO1 GWAOOGWHPITOEY-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 229910013188 LiBOB Inorganic materials 0.000 description 1
- 229910010941 LiFSI Inorganic materials 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- OQPHEVHDBFEJRQ-UHFFFAOYSA-N [Li].P(O)(O)(O)=O Chemical compound [Li].P(O)(O)(O)=O OQPHEVHDBFEJRQ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H01M10/056—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
-
- 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)
- 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
The invention belongs to technical field of lithium ion, and in particular to a kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte, the electrolyte includes non-aqueous organic solvent, lithium salts and additive；Wherein non-aqueous organic solvent is the mixture of carbonic ester and linear carboxylate, and the additive includes nitrile compounds anode protection additive, Low ESR additive and cathode film formation additive with 2~3 itrile group functional groups.Generated synergistic effect is used in combination by additive and dicyandiamide solution in the present invention, can significantly improve the cycle life of lithium ion battery under high voltages, while having both excellent high temperature storage and low temperature performance.
Description
Technical field
The invention belongs to technical field of lithium ion, and in particular to a kind of high-voltage electrolyte for taking into account high temperature performance
And the lithium ion battery using the electrolyte.
Background technique
Lithium ion battery is because having high working voltage, height ratio capacity, long circulation life, environmentally friendly and memory effect etc.
Advantage and be widely used in the fields such as 3C digital product, electric car, energy storage and militay space flight aviation.But in recent years, with
The fast development of electronic product and electric car, requirement of the consumer to the energy density of lithium ion battery is higher and higher, and
Excellent high temperature circulation, storage and low temperature performance are required simultaneously.
Currently, the positive electrode of high-voltage lithium ion batteries generallys use the cobalt acid lithium of high voltage 4.4V or more, cathode
Material generally uses the graphite of high capacity high-pressure solid.However, under high voltages, the metal ion in positive cobalt acid lithium material is in
Higher oxidation state, oxidation activity with higher generate a large amount of gas so that electrolyte is just easily being oxidized decomposition
Battery bulging is directly resulted in, and solid product is deposited in positive and negative pole surface, and the internal resistance of cell is caused to increase, and is reduced circulation volume and is kept
Rate and low temperature discharge capacity；Meanwhile the metal ion in positive electrode easily dissolves out, and restores and deposits in negative terminal surface, to destroy
Cathode material structure and cathode SEI film, and then lead to battery capacity sharp-decay.Therefore, it develops one kind and takes into account high and low temperature
The high-voltage lithium ion electrolyte of energy, so that there is lithium ion battery excellent high temperature circulation and low temperature performance to disappear to meet
The demand of the person of expense.
Summary of the invention
The problem of being taken into account the purpose of the present invention is to solve the high temperature performance difficulty of existing high-voltage lithium ion batteries,
A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte, this kind of lithium ion battery are provided
There is excellent high-temperature cycle life, high temperature storage and low temperature performance under high voltages.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of high-voltage electrolyte for taking into account high temperature performance, including non-aqueous organic solvent, lithium salts and additive, it is described
Non-aqueous organic solvent is at least one of at least one of cyclic carbonate and both linear carbonates and linear carboxylate
The mixture mixed in any proportion, the additive include anode protection additive, Low ESR additive and cathode film formation
The mixture of additive three, the anode protection additive is the nitrile compounds with 2 or 3 itrile group functional groups.
Further, the anode protection additive is succinonitrile, adiponitrile, bis- (propionitrile) ethers of ethylene glycol, 1,3,6-
Two or more of mixtures in three nitrile of hexane, trans hexenyl dintrile, the anode protection additive account for the total matter of electrolyte
The 2%~10% of amount.
Further, the Low ESR additive is difluorophosphate, accounts for the 0.1%~2% of electrolyte gross mass.
Further, the cathode film formation additive be fluorinated ethylene carbonate, account for electrolyte gross mass 4%~
10%.
Further, the additive further includes vinylene carbonate, vinylethylene carbonate, ethyl sulfate, first
Base disulfonic acid methylene ester, double fluorine sulfimide lithiums, di-oxalate lithium borate, difluorine oxalic acid boracic acid lithium, LiBF4 and difluoro grass
One of acid phosphoric acid lithium or a variety of mixtures.
Further, the mass percent that the additive amount of the additive accounts for electrolyte gross mass is each independently
0%~2%.
Further, the lithium salts is lithium hexafluoro phosphate, accounts for the 13%~20% of electrolyte gross mass.
Further, the cyclic carbonate is ethylene carbonate or propene carbonate；The linear carbonates are
Dimethyl carbonate, diethyl carbonate or methyl ethyl carbonate, the linear carboxylate are ethyl propionate, propyl propionate or acetic acid third
Ester；The non-aqueous organic solvent accounts for the 58%~80% of electrolyte gross mass.
A kind of lithium ion battery using above-mentioned electrolyte, including anode, cathode, electrolyte and it is placed in positive electrode and negative electrode
Between diaphragm, charge cutoff voltage >=4.4V of the lithium ion battery.
The beneficial effect of the present invention compared with the existing technology is: protecting additive, Low ESR additive by anode and bears
Pole film for additive is applied in combination, while combining generated synergistic effect by optimization dicyandiamide solution, can reduce high electricity
It depresses the side reaction between electrolyte and electrode material and reduces the interface impedance of battery, so as to improve lithium ion battery
Low temperature performance combines excellent high voltage high temperature storage and cycle performance.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, technical solution of the present invention is made below with reference to embodiment
Further instruction, however, it is not limited to this, and those of ordinary skill in the art are without creative efforts to this
All embodiments that inventive technique scheme is modified or replaced equivalently, belong to the scope of protection of the invention.
Specific embodiment 1: present embodiment record is a kind of high-voltage electrolyte for taking into account high temperature performance, packet
Include non-aqueous organic solvent, lithium salts and additive, the non-aqueous organic solvent be at least one of cyclic carbonate with it is linear
The mixture that at least one of both carbonic ester and linear carboxylate mix in any proportion, the additive include anode
The mixture of additive, Low ESR additive and cathode film formation additive three is protected, the anode protection additive is tool
There are the nitrile compounds of 2 or 3 itrile group functional groups.
Specific embodiment 2: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The described anode protection additive is succinonitrile (SN), adiponitrile (AND), bis- (propionitrile) ethers (DENE) of ethylene glycol, 1,3,6- oneself
Two or more of mixtures in three nitrile of alkane (HTCN), trans hexenyl dintrile (DCB), the anode protection additive account for electricity
The 2%~10% of liquid gross mass is solved, preferred value is 3%~7%.
Specific embodiment 3: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The Low ESR additive is difluorophosphate (LiPO2F2), the 0.1%~2% of electrolyte gross mass is accounted for, is preferably taken
Value is 0.2%~1%.
Specific embodiment 4: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The cathode film formation additive is fluorinated ethylene carbonate (FEC), accounts for the 4%~10% of electrolyte gross mass, preferably
Value is 5%~8%.
Specific embodiment 5: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The additive further includes vinylene carbonate (VC), vinylethylene carbonate (VEC), ethyl sulfate (DTD), methyl two
Sulfonic acid methylene ester (MMDS), double fluorine sulfimide lithiums (LiFSI), di-oxalate lithium borate (LiBOB), difluorine oxalic acid boracic acid lithium
(LiODFB), one of LiBF4 (LiBF4) and difluoro oxalate lithium phosphate (LiODFP) or a variety of mixtures.
Specific embodiment 6: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment five,
The mass percent that the additive amount of the additive accounts for electrolyte gross mass is each independently 0%~2%.
Specific embodiment 7: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The lithium salts is lithium hexafluoro phosphate (LiPF6), accounting for the 13%~20% of electrolyte gross mass, preferred value is 14%~
17%.
Specific embodiment 8: a kind of high-voltage electrolyte for taking into account high temperature performance described in specific embodiment one,
The cyclic carbonate is ethylene carbonate (EC) or propene carbonate (PC)；The linear carbonates are dimethyl carbonate
(DMC), the compounds such as diethyl carbonate (DEC) or methyl ethyl carbonate (EMC), the linear carboxylate are ethyl propionate
(EP), the compounds such as propyl propionate (PP) or propyl acetate (PA)；The non-aqueous organic solvent accounts for electrolyte gross mass
58%~80%, preferably value is 65%~77.8%.
Specific embodiment 9: a kind of use electrolyte described in any specific embodiment of specific embodiment one to eight
Lithium ion battery, including anode, cathode, electrolyte and the diaphragm being placed between positive electrode and negative electrode, the lithium ion battery
Charge cutoff voltage >=4.4V.
Embodiment 1
The preparation of electrolyte: in the glove box (moisture < 10ppm, oxygen < 1ppm) full of argon gas, by ethylene carbonate
Ester (EC), propene carbonate (PC), diethyl carbonate (DEC), propyl propionate (PP) are equal with the mixing of 15:15:30:40 mass ratio
Fluorinated ethylene carbonate even, that addition mass fraction is 5.0% in mixed solution, the 1 of 4.0%, 3 propane sulfonic acid lactones,
1.0% adiponitrile (AND), bis- (propionitrile) ethers (DENE) of bis- (propionitrile) the ether ethylene glycol of 1% ethylene glycol, the 1,3,6- of 1.0%
Three nitrile of hexane (HTCN), 0.3% difluorophosphate (LiPO2F2), it is slow added into the LiPF6 that mass fraction is 14%, stirring
It is completely dissolved to it, obtains the lithium-ion battery electrolytes of embodiment 1.
The preparation of lithium ion battery: the lithium-ion battery electrolytes injection that above-mentioned steps are prepared is by sufficiently drying
4.4VLiCoO2In/graphite polymer battery, battery shelved by 45 DEG C, be melted into and secondary sealing after, carry out conventional partial volume.
Embodiment 2
The amount for the difluorophosphate additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass
0.5%.Remaining is same as Example 1.
Embodiment 3
The amount for the AND and DENE additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2.0% and 2.0%.Remaining is same as Example 1.
Embodiment 4
The amount for the AND and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2.0% and 2.0%.Remaining is same as Example 1.
Embodiment 5
The amount for the DENE and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2.0% and 2.0%.Remaining is same as Example 1.
Embodiment 6
The amount for the AND and DENE additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
3.0% and 2.0%.Remaining is same as Example 1.
Embodiment 7
The amount for the AND and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
3.0% and 2.0%.Remaining is same as Example 1.
Embodiment 8
The amount for the DENE and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2.0% and 3.0%.Remaining is same as Example 1.
Embodiment 9
The amount for the AND and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2.0% and 3.0%.Remaining is same as Example 1.
Embodiment 10
The amount for the FEC additive being added in electrolyte unlike the first embodiment accounts for the 8% of electrolyte gross mass.Remaining
It is same as Example 1.
Embodiment 11
The amount for the lithium hexafluoro phosphate additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass
17%.Remaining is same as Example 1.
Comparative example 1
The organic solvent being added in electrolyte unlike the first embodiment is ethylene carbonate (EC), propene carbonate
(PC), diethyl carbonate (DEC), propyl propionate (PP), and mixed with the ratio of mass ratio 20:20:30:30.Remaining with
Embodiment 1 is identical.
Comparative example 2
The amount for the ADN additive being added in electrolyte unlike the first embodiment accounts for the 3% of electrolyte gross mass.Remaining
It is same as Example 1.
Comparative example 3
The amount for the AND and DENE additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2% and 1%.Remaining is same as Example 1.
Comparative example 4
The amount for the AND and HTCN additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass respectively
2% and 1%.Remaining is same as Example 1.
Comparative example 5
Difluorophosphate additive is not added in electrolyte unlike the first embodiment.Remaining is same as Example 1.
Comparative example 6
The amount for the difluorophosphate additive being added in electrolyte unlike the first embodiment accounts for electrolyte gross mass
1%.Remaining is same as Example 1.
Electrochemical property test is carried out to the above comparative example and the resulting lithium ion battery of embodiment, related description is as follows:
45 DEG C of high temperature circulation experiments: embodiment 1~11 and 1~6 gained battery of comparative example are placed in (45 ± 2) DEG C environment
In, 2-3 hour is stood, when battery body reaches (45 ± 2) DEG C, battery is according to 2C constant-current charge cut-off current
0.025C shelves 5min after battery is fully charged, then with 0.7C constant-current discharge to blanking voltage 3.0V, record is 3 times recycled most
High discharge capacity is initial capacity Q, and when circulation reaches required number, the full electricity of battery records the capacity Q1 of battery, record knot
Fruit such as table 1.
The calculation formula wherein used is as follows:
High temperature storage experiment: by embodiment 1~11 and 1~6 gained battery of comparative example at room temperature with the charge and discharge of 0.7C
Multiplying power carries out 3 charge and discharge cycles tests, and then 0.7C multiplying power is charged to full power state, records 0.7C capacity Q respectively and battery is thick
Spend T.The battery of full power state is stored 21 days at 60 DEG C, cell thickness T of the record after 21 days0With 0.7C discharge capacity Q1, so
Afterwards by battery at room temperature with the multiplying power charge and discharge of 0.7C 3 weeks, 0.7C discharge capacity Q is recorded2, battery high-temperature storage is calculated
The experimental datas such as thickness change, capacity retention ratio and capacity restoration rate record result such as table 1.
The calculation formula wherein used is as follows:
Low temperature discharge experiment: by embodiment 1~11 and 1~6 gained battery of comparative example at 25 ± 3 DEG C of environment temperature, first with
0.7C is discharged to 3.0V, shelves 5min；It is charged with 0.7C, when voltage reaches charging limitation voltage when battery core end, is changed to constant pressure and fills
Electricity stops charging until charging current≤cut-off current, shelves after five minutes, is discharged to 3.0V with 0.2C, record this time discharges
Capacity is room temperature capacity Q0.Then battery core is charged with 0.7C, when voltage reaches charging limitation voltage when battery core end, is changed to constant pressure and is filled
Electricity, until charging current is less than or equal to cut-off current, stopping charging；The battery that will be filled with electricity is shelved under the conditions of -20 ± 2 DEG C
After 4h, with 0.25C current discharge to blanking voltage 3.0V, discharge capacity Q is recorded3, it can be calculated low temperature discharge capacity conservation rate,
Record result such as table 1.
Low temperature discharge capacity conservation rate calculation is following formula:
Charge and discharge cycles, high temperature storage and the low temperature discharge test result of 1 embodiment and comparative example of table
By 1 result of table it can be seen that being had using the battery of 1~embodiment of embodiment 11 of technical solution of the present invention more preferable
High temperature cyclic performance, high-temperature storage and low temperature performance.By comparative example 1 it is found that in optimization solvent compared with embodiment 1
EC, PC and PP content can be obviously improved storage and the low temperature performance of battery.Lack two by the discovery of comparative example 5 simultaneously
The low temperature discharge capacity conservation rate of lithium fluophosphate battery is significantly lower than embodiment 1.Illustrate that difluorophosphate can significantly change
Kind low temperature performance, while high temperature circulation to battery and storge quality also have a certain upgrade.Above-described embodiment is this hair
Bright preferable embodiment, but embodiment of the present invention are not limited by the above embodiments, it is other any without departing from this
It is made under the spiritual essence and principle of invention to change, modification, substitution, combine and simplify, it should be equivalent substitute mode, all
It is included within protection scope of the present invention.
Claims (9)
1. a kind of high-voltage electrolyte for taking into account high temperature performance, including non-aqueous organic solvent, lithium salts and additive, feature exist
In: the non-aqueous organic solvent be at least one of cyclic carbonate in both linear carbonates and linear carboxylate
At least one mixture mixed in any proportion, the additive include anode protection additive, Low ESR additive and
The mixture of cathode film formation additive three, the anode protection additive is the nitrile with 2 or 3 itrile group functional groups
Close object.
2. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: it is described just
Protect additive in succinonitrile, adiponitrile, bis- (propionitrile) ethers of ethylene glycol, 1,3,6- hexane, three nitrile, trans hexenyl dintrile in pole
Two or more of mixtures, the anode protection additive account for the 2%~10% of electrolyte gross mass.
3. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: described is low
Impedance additive is difluorophosphate, accounts for the 0.1%~2% of electrolyte gross mass.
4. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: described is negative
Pole film for additive is fluorinated ethylene carbonate, accounts for the 4%~10% of electrolyte gross mass.
5. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: described adds
Adding agent further includes vinylene carbonate, vinylethylene carbonate, ethyl sulfate, sodium methanedisulfonate methylene ester, double fluorine sulphonyl Asia
One of amine lithium, di-oxalate lithium borate, difluorine oxalic acid boracic acid lithium, LiBF4 and difluoro oxalate lithium phosphate are a variety of mixed
Close object.
6. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 5, it is characterised in that: described adds
The mass percent for adding the additive amount of agent to account for electrolyte gross mass is each independently 0%~2%.
7. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: the lithium
Salt is lithium hexafluoro phosphate, accounts for the 13%~20% of electrolyte gross mass.
8. a kind of high-voltage electrolyte for taking into account high temperature performance according to claim 1, it is characterised in that: the ring
Shape carbonic ester is ethylene carbonate or propene carbonate；The linear carbonates are dimethyl carbonate, diethyl carbonate or carbon
Sour methyl ethyl ester, the linear carboxylate are ethyl propionate, propyl propionate or propyl acetate；The non-aqueous organic solvent accounts for electricity
Solve the 58%~80% of liquid gross mass.
9. a kind of lithium ion battery using electrolyte described in claim 1~8 any claim, including anode, cathode,
Electrolyte and the diaphragm being placed between positive electrode and negative electrode, it is characterised in that: the charge cutoff voltage of the lithium ion battery >=
4.4V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553122.8A CN109473713A (en) | 2018-12-19 | 2018-12-19 | A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811553122.8A CN109473713A (en) | 2018-12-19 | 2018-12-19 | A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109473713A true CN109473713A (en) | 2019-03-15 |
Family
ID=65675210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811553122.8A Pending CN109473713A (en) | 2018-12-19 | 2018-12-19 | A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109473713A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165219A (en) * | 2019-06-03 | 2019-08-23 | 宁德新能源科技有限公司 | Electrochemical appliance |
| CN110233291A (en) * | 2019-05-31 | 2019-09-13 | 骆驼集团新能源电池有限公司 | A kind of wide temperate zone lithium battery electrolytes of 12V start and stop balancing high/low temperature |
| CN111063933A (en) * | 2019-12-11 | 2020-04-24 | 中国科学院山西煤炭化学研究所 | Lithium ion battery electrolyte suitable for high-voltage system |
| CN111261939A (en) * | 2020-01-20 | 2020-06-09 | 宁德新能源科技有限公司 | Electrolyte solution and electrochemical device using the same |
| CN111628218A (en) * | 2020-05-18 | 2020-09-04 | 珠海冠宇电池股份有限公司 | Lithium ion battery and preparation method thereof |
| CN111640985A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Non-aqueous electrolyte and high-voltage lithium ion battery containing same |
| CN111640982A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Electrolyte for lithium ion battery and lithium ion battery comprising same |
| CN111640984A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Lithium ion finished product battery and preparation method thereof |
| CN111883839A (en) * | 2020-08-03 | 2020-11-03 | 远景动力技术(江苏)有限公司 | High-voltage electrolyte and lithium ion battery based on same |
| CN111900479A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | Lithium ion battery with excellent high-temperature performance |
| CN111900480A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | High-voltage lithium ion battery with excellent high and low temperature performance |
| CN112349960A (en) * | 2019-08-08 | 2021-02-09 | 宁德时代新能源科技股份有限公司 | Electrolyte and lithium ion battery |
| CN112467209A (en) * | 2019-09-09 | 2021-03-09 | 珠海冠宇电池股份有限公司 | High-voltage lithium ion battery with high and low temperature performance |
| CN112825373A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Non-aqueous electrolyte and lithium secondary battery comprising same |
| CN112825372A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Electrolyte and electrochemical device containing same |
| CN112825371A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Electrolyte for high-voltage lithium ion battery and lithium ion battery comprising same |
| WO2021155250A1 (en) * | 2020-01-31 | 2021-08-05 | Ascend Performance Materials Operations Llc | Electrolyte solutions |
| CN113471539A (en) * | 2021-06-29 | 2021-10-01 | 惠州市赛能电池有限公司 | Electrolyte, preparation method thereof and lithium ion battery |
| CN113839087A (en) * | 2020-06-23 | 2021-12-24 | 浙江蓝天环保高科技股份有限公司 | Method for improving high and low temperature performance of lithium ion battery and electrolyte thereof |
| CN114204123A (en) * | 2021-12-10 | 2022-03-18 | 湖南航天磁电有限责任公司 | High-voltage-resistant high-power electrolyte and application thereof |
| CN114641884A (en) * | 2020-07-09 | 2022-06-17 | 株式会社Lg新能源 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170051286A (en) * | 2015-10-29 | 2017-05-11 | 주식회사 엘지화학 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same |
| CN107195966A (en) * | 2017-04-26 | 2017-09-22 | 湛江市金灿灿科技有限公司 | The high voltage tertiary cathode material system lithium-ion battery electrolytes that a kind of high/low temperature performance is taken into account |
| CN107611479A (en) * | 2017-09-08 | 2018-01-19 | 广东天劲新能源科技股份有限公司 | Lithium ion power battery electrolyte and lithium rechargeable battery |
| CN107706455A (en) * | 2017-09-20 | 2018-02-16 | 惠州亿纬锂能股份有限公司 | A kind of high voltage multiplying power electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte |
| CN108321434A (en) * | 2018-03-23 | 2018-07-24 | 安普瑞斯（无锡）有限公司 | A kind of high-voltage lithium-ion battery electrolyte |
-
2018
- 2018-12-19 CN CN201811553122.8A patent/CN109473713A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170051286A (en) * | 2015-10-29 | 2017-05-11 | 주식회사 엘지화학 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same |
| CN107195966A (en) * | 2017-04-26 | 2017-09-22 | 湛江市金灿灿科技有限公司 | The high voltage tertiary cathode material system lithium-ion battery electrolytes that a kind of high/low temperature performance is taken into account |
| CN107611479A (en) * | 2017-09-08 | 2018-01-19 | 广东天劲新能源科技股份有限公司 | Lithium ion power battery electrolyte and lithium rechargeable battery |
| CN107706455A (en) * | 2017-09-20 | 2018-02-16 | 惠州亿纬锂能股份有限公司 | A kind of high voltage multiplying power electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte |
| CN108321434A (en) * | 2018-03-23 | 2018-07-24 | 安普瑞斯（无锡）有限公司 | A kind of high-voltage lithium-ion battery electrolyte |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233291A (en) * | 2019-05-31 | 2019-09-13 | 骆驼集团新能源电池有限公司 | A kind of wide temperate zone lithium battery electrolytes of 12V start and stop balancing high/low temperature |
| CN112234209A (en) * | 2019-06-03 | 2021-01-15 | 宁德新能源科技有限公司 | Electrochemical device |
| CN112234208A (en) * | 2019-06-03 | 2021-01-15 | 宁德新能源科技有限公司 | Electrochemical device |
| CN110165219A (en) * | 2019-06-03 | 2019-08-23 | 宁德新能源科技有限公司 | Electrochemical appliance |
| US11349124B2 (en) | 2019-06-03 | 2022-05-31 | Ningde Amperex Technology Limited | Electrochemical device |
| CN112234209B (en) * | 2019-06-03 | 2021-11-23 | 宁德新能源科技有限公司 | Electrochemical device |
| CN112234208B (en) * | 2019-06-03 | 2021-11-23 | 宁德新能源科技有限公司 | Electrochemical device |
| CN112349960A (en) * | 2019-08-08 | 2021-02-09 | 宁德时代新能源科技股份有限公司 | Electrolyte and lithium ion battery |
| CN112467209A (en) * | 2019-09-09 | 2021-03-09 | 珠海冠宇电池股份有限公司 | High-voltage lithium ion battery with high and low temperature performance |
| CN112825371A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Electrolyte for high-voltage lithium ion battery and lithium ion battery comprising same |
| CN112825373B (en) * | 2019-11-20 | 2022-06-14 | 珠海冠宇电池股份有限公司 | Non-aqueous electrolyte and lithium secondary battery comprising same |
| CN112825372A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Electrolyte and electrochemical device containing same |
| CN112825373A (en) * | 2019-11-20 | 2021-05-21 | 珠海冠宇电池股份有限公司 | Non-aqueous electrolyte and lithium secondary battery comprising same |
| CN111063933A (en) * | 2019-12-11 | 2020-04-24 | 中国科学院山西煤炭化学研究所 | Lithium ion battery electrolyte suitable for high-voltage system |
| CN111063933B (en) * | 2019-12-11 | 2022-08-16 | 中国科学院山西煤炭化学研究所 | Lithium ion battery electrolyte suitable for high-voltage system |
| CN111261939A (en) * | 2020-01-20 | 2020-06-09 | 宁德新能源科技有限公司 | Electrolyte solution and electrochemical device using the same |
| WO2021155250A1 (en) * | 2020-01-31 | 2021-08-05 | Ascend Performance Materials Operations Llc | Electrolyte solutions |
| US11742523B2 (en) | 2020-01-31 | 2023-08-29 | Ascend Performance Materials Operations Llc | Electrolyte solutions |
| CN111640984A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Lithium ion finished product battery and preparation method thereof |
| CN111628218B (en) * | 2020-05-18 | 2021-08-31 | 珠海冠宇电池股份有限公司 | Lithium ion battery and preparation method thereof |
| CN111640982B (en) * | 2020-05-18 | 2021-10-26 | 珠海冠宇电池股份有限公司 | Electrolyte for lithium ion battery and lithium ion battery comprising same |
| CN111640982A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Electrolyte for lithium ion battery and lithium ion battery comprising same |
| CN111640985A (en) * | 2020-05-18 | 2020-09-08 | 珠海冠宇电池股份有限公司 | Non-aqueous electrolyte and high-voltage lithium ion battery containing same |
| CN111628218A (en) * | 2020-05-18 | 2020-09-04 | 珠海冠宇电池股份有限公司 | Lithium ion battery and preparation method thereof |
| CN113839087A (en) * | 2020-06-23 | 2021-12-24 | 浙江蓝天环保高科技股份有限公司 | Method for improving high and low temperature performance of lithium ion battery and electrolyte thereof |
| CN114641884A (en) * | 2020-07-09 | 2022-06-17 | 株式会社Lg新能源 | Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising same |
| CN111883839A (en) * | 2020-08-03 | 2020-11-03 | 远景动力技术(江苏)有限公司 | High-voltage electrolyte and lithium ion battery based on same |
| CN111883839B (en) * | 2020-08-03 | 2021-12-14 | 远景动力技术(江苏)有限公司 | High-voltage electrolyte and lithium ion battery based on same |
| CN111900480A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | High-voltage lithium ion battery with excellent high and low temperature performance |
| CN111900479A (en) * | 2020-08-21 | 2020-11-06 | 珠海冠宇电池股份有限公司 | Lithium ion battery with excellent high-temperature performance |
| CN113471539A (en) * | 2021-06-29 | 2021-10-01 | 惠州市赛能电池有限公司 | Electrolyte, preparation method thereof and lithium ion battery |
| WO2023272864A1 (en) * | 2021-06-29 | 2023-01-05 | 惠州市赛能电池有限公司 | Electrolyte solution, preparation method therefor and lithium ion battery |
| CN114204123A (en) * | 2021-12-10 | 2022-03-18 | 湖南航天磁电有限责任公司 | High-voltage-resistant high-power electrolyte and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109473713A (en) | A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte | |
| CN105591158B (en) | A kind of tertiary cathode material lithium ion battery and its electrolyte | |
| CN103401020B (en) | A kind of high-voltage lithium-ion battery electrolyte | |
| CN104505535B (en) | A kind of nonaqueous electrolytic solution of high-voltage lithium ion batteries | |
| CN109546219A (en) | A kind of lithium-ion battery electrolytes and the lithium ion battery using the electrolyte | |
| CN105576283A (en) | High voltage electrolyte considering high and low temperature performance and lithium ion battery using the electrolyte | |
| CN106505249A (en) | A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte | |
| CN108321434A (en) | A kind of high-voltage lithium-ion battery electrolyte | |
| CN107768719A (en) | A kind of lithium-ion battery electrolytes and lithium ion battery | |
| ES2967809T3 (en) | Lithium secondary battery electrolyte and lithium secondary battery comprising the same | |
| CN105355970A (en) | Electrolyte for lithium-ion battery made of ternary cathode materials and lithium-ion battery made of ternary cathode materials | |
| CN110148784A (en) | A kind of electrolyte and the lithium ion battery using the electrolyte | |
| CN109873205A (en) | A kind of electrolyte suitable for silicon-carbon cathode and the lithium ion battery comprising the electrolyte | |
| CN109873206A (en) | Lithium-ion battery electrolytes and lithium ion battery | |
| CN105703007A (en) | Non-aqueous electrolyte for high-voltage rapid-charging type lithium ion battery | |
| CN106252716A (en) | A kind of safe lithium ion power battery electrolyte and lithium-ion-power cell | |
| CN103078138B (en) | high-voltage lithium ion battery and electrolyte thereof | |
| CN107195966A (en) | The high voltage tertiary cathode material system lithium-ion battery electrolytes that a kind of high/low temperature performance is taken into account | |
| CN105261791A (en) | Ultra-temperature high-voltage lithium-ion battery electrolyte and lithium-ion battery using electrolyte | |
| CN109417201A (en) | Battery electrolyte additive, lithium-ion battery electrolytes, lithium ion battery | |
| CN105789698B (en) | A kind of non-aqueous electrolyte for lithium ion cell and lithium ion battery | |
| CN109216770A (en) | A kind of nonaqueous lithium ion battery electrolyte and the lithium ion battery using the electrolyte | |
| CN110444810A (en) | Electrolyte solution and secondary battery | |
| CN102593513A (en) | Lithium ion secondary battery and electrolyte thereof | |
| CN108666620A (en) | A kind of nonaqueous electrolytic solution of high-voltage lithium ion batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant after: ZHUHAI COSLIGHT BATTERY Co.,Ltd. Address before: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant after: Zhuhai CosMX Battery Co.,Ltd. Address before: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |