CN106784994A - A kind of smart home lithium-ion battery electrolytes and battery - Google Patents
A kind of smart home lithium-ion battery electrolytes and battery Download PDFInfo
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- CN106784994A CN106784994A CN201710012326.XA CN201710012326A CN106784994A CN 106784994 A CN106784994 A CN 106784994A CN 201710012326 A CN201710012326 A CN 201710012326A CN 106784994 A CN106784994 A CN 106784994A
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- Prior art keywords
- lithium
- carbonate
- volume
- ester
- fluorine
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 21
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 34
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 24
- -1 methylene ester Chemical class 0.000 claims abstract description 23
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 22
- 239000011737 fluorine Substances 0.000 claims abstract description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002904 solvent Substances 0.000 claims abstract description 21
- VEWLDLAARDMXSB-UHFFFAOYSA-N ethenyl sulfate;hydron Chemical compound OS(=O)(=O)OC=C VEWLDLAARDMXSB-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002253 acid Substances 0.000 claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 18
- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 13
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 150000005676 cyclic carbonates Chemical class 0.000 claims abstract description 8
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000001186 cumulative effect Effects 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- 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 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- DFFDSQBEGQFJJU-UHFFFAOYSA-M butyl carbonate Chemical compound CCCCOC([O-])=O DFFDSQBEGQFJJU-UHFFFAOYSA-M 0.000 claims description 2
- 125000005912 ethyl carbonate group Chemical group 0.000 claims description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 2
- FOWDZVNRQHPXDO-UHFFFAOYSA-N propyl hydrogen carbonate Chemical compound CCCOC(O)=O FOWDZVNRQHPXDO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 7
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 7
- CQDGTJPVBWZJAZ-UHFFFAOYSA-N monoethyl carbonate Chemical compound CCOC(O)=O CQDGTJPVBWZJAZ-UHFFFAOYSA-N 0.000 description 7
- XWRISGYTPCBGDC-UHFFFAOYSA-N 2,2-difluoropropanedinitrile Chemical compound N#CC(F)(F)C#N XWRISGYTPCBGDC-UHFFFAOYSA-N 0.000 description 4
- UTSYHFRWUGOGJP-UHFFFAOYSA-N 3,3-difluoro-1,5,2,4-dioxadithiane 2,2,4,4-tetraoxide Chemical compound FC1(F)S(=O)(=O)OCOS1(=O)=O UTSYHFRWUGOGJP-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 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
- H01M10/052—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
- 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
- H01M10/056—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
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
Abstract
The present invention discloses a kind of longer-term storage type lithium ion battery, wherein negative pole uses lithium titanate, electrolyte, including electric conducting lithium salt, carbonate solvent, and compound additive, it is characterized in that, the concentration of electric conducting lithium salt is more than 2mol/L, carbonate solvent includes cyclic carbonate, and its volume content accounts for more than the 70% of carbonate solvent cumulative volume, and containing total amount carbonate solvent percent by volume 5 10% compound additive, fluomethane disulfonic acid methylene ester, the volume V proportionate relationships between sulfuric acid vinyl ester and fluoro dintrile be, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester>VSulfuric acid vinyl ester+VFluoro dintrile.Battery of the invention interface impedance under the conditions of longer-term storage is low, can keep electrical conductivity and cycle life raising battery longer-term storage performance high.
Description
Technical field
It is electrolysed with lithium ion battery the present invention relates to technical field of lithium ion, more particularly to a kind of smart home
Liquid.
Background technology
Smart home (English：Smart home, home automation) it is with house as platform, using comprehensive wiring
Technology, the network communications technology, security precautions technology, automatic control technology, audio frequency and video technology are by the relevant facility collection of life staying idle at home
Into, the management system of efficient housing facilities and family's schedule affairs is built, lift house security, convenience, comfortableness, skill
Art, and realize the living environment of environmental protection and energy saving.
Existing intelligent domestic system generally requires connection external power source and could work.And under many circumstances, Ren Menxi
Prestige could be used that the work(such as intelligent domestic system partial function, such as digital independent, signal transmitting and receiving in the case of no external power source
Energy.Accordingly, it would be desirable in smart home internal battery, so as in the case of without external power source for smart home basic training
Can, such as data are preserved, and the function such as signal transmitting and receiving provides necessary power supply.And it is due to the battery for smart home and now common
Battery requirements it is different, current battery is all towards low resistance, and the electrokinetic cell direction of height output is studied, and smart home
Battery operating current it is very low, and be required to undergo prolonged storage and capacity is unaffected, and peace higher
Full property and cyclicity etc..And existing battery produces side reaction, or electrode active due to electrode active material and electrolyte contacts
Property material come off or the reason such as itself element dissolution, it places the service behaviour after storage performance and experience longer-term storage for a long time
The requirement of battery needed for smart home can not be met.
In view of this, it is nowadays a kind of new for intelligent domestic system lithium ion battery in the urgent need to designing, to overcome
The drawbacks described above that existing battery is present.
The content of the invention
In order to solve above-mentioned problems of the prior art, the invention provides a kind of smart home lithium-ion electric
Pond.Inventor's discovery, using the lithium salts and a high proportion of cyclic carbonate of high concentration, and uses compound additive, can
On the basis of ensureing that internal resistance does not increase, the storage performance and cycle life of battery are greatly improved, especially hot conditions
Under performance.
Specific scheme is as follows：
A kind of smart home lithium-ion battery electrolytes, including electric conducting lithium salt, carbonate solvent, and compound addition
Agent, it is characterised in that the concentration of electric conducting lithium salt is more than 2mol/L, carbonate solvent includes cyclic carbonate, and its body
Product content accounts for more than the 70% of carbonate solvent cumulative volume, and the answering in carbonate solvent percent by volume 5-10% containing total amount
Additive is closed, wherein compound additive is by fluorine-containing sulfimide lithium, fluomethane disulfonic acid methylene ester, sulfuric acid vinyl ester and fluorine
For dintrile, wherein fluorine-containing sulfimide lithium, the volume ratio of fluomethane disulfonic acid methylene ester, sulfuric acid vinyl ester and fluoro dintrile
Example is 1-1.5：2-4：2-4：0.5-1；And the volume summation of fluorine-containing sulfimide lithium and fluoro dintrile is molten no more than carbonic ester
Agent percent by volume 3%；Fluomethane disulfonic acid methylene ester, the volume summation of sulfuric acid vinyl ester are not less than carbonate solvent volume
Percentage 4%, fluorine-containing sulfimide lithium, fluomethane disulfonic acid methylene ester, the volume between sulfuric acid vinyl ester and fluoro dintrile
V proportionate relationships are, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester>VSulfuric acid vinyl ester+VFluoro dintrile。
Further, the concentration of the electric conducting lithium salt is 2-4mol/L.
Further, the carbonate solvent is selected from ethyl carbonate, propyl carbonate, butyl carbonate.
Further, the carbonate solvent also includes linear carbonate.
Further, the cyclic carbonate and the volume ratio of linear carbonate are 7:3-9:1.
Further, compound additive is 6% in carbonate solvent percent by volume.
Further, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester=coefficient ×（VSulfuric acid vinyl ester+VFluoro dintrile）, wherein coefficient>1.1.
Further, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester=coefficient ×（VSulfuric acid vinyl ester+VFluoro dintrile）, wherein coefficient=1.2.
Further, the lithium salts is selected from lithium hexafluoro phosphate, LiBF4.
Further, a kind of smart home lithium ion battery, it includes above-mentioned electrolyte, and wherein negative pole includes metatitanic acid
Lithium.
The present invention has the advantages that：
（1）The lithium salts and a high proportion of cyclic carbonate of high concentration are selected, cyclic carbonate is good with the compatibility of electrode, for a long time
Be difficult to during storage occur side reaction, and high concentration lithium salts can ensure be electrolysed fluid viscosity it is increased in the case of electrical conductivity, and
The missing of the lithium ion in electrolyte during long-term use can be made up.
（2）Fluorine-containing sulfimide lithium increased the dissociation capability of negative ions in electrolyte, improve electrical conductivity.
（3）Using the compound additive of proportion in the application, due to the synergy in additive, can be positive and negative
Pole forms more form compact and stable diaphragm simultaneously, it is suppressed that the dissolution of metallic element and electrolyte exist in both positive and negative polarity active material
The decomposition of electrode surface, while keeping electrical conductivity high after long term storage.
（4）Negative pole uses lithium titanate, and it is more preferable with compatibility of electrolyte, and with more preferable cycle life.
Specific embodiment
The present invention will be described in more detail by specific embodiment below, but protection scope of the present invention is not received
It is limited to these embodiments.
Embodiment 1
Lithium hexafluoro phosphate 2mol/L, ethyl carbonate：Dimethyl carbonate=7:3, compound additive accounts for carbonic ester volumn concentration
5.5%, fluorine-containing sulfimide lithium, perfluoro methane-disulfonic acid methylene ester, sulfuric acid vinyl ester, perfluoro malononitrile=1:2:2:0.5
（Volume ratio）.
Embodiment 2
Lithium hexafluoro phosphate 4mol/L, ethyl carbonate：Dimethyl carbonate=9:1, compound additive accounts for carbonic ester volumn concentration
10%, fluorine-containing sulfimide lithium, perfluoro methane-disulfonic acid methylene ester, sulfuric acid vinyl ester, perfluoro malononitrile=1.5:4:4:1
（Volume ratio）.
Embodiment 3
Tetrafluoro boric acid acid lithium 3mol/L, ethyl carbonate：Dimethyl carbonate=8:2, compound additive accounts for carbonic ester volumn concentration
10%, fluorine-containing sulfimide lithium, perfluoro methane-disulfonic acid methylene ester, sulfuric acid vinyl ester, perfluoro malononitrile=1.5:4:4:1
（Volume ratio）.
Comparative example 1
Lithium hexafluoro phosphate 1mol/L, ethyl carbonate：Dimethyl carbonate=1:1, additive accounts for carbonic ester volumn concentration 1%, adds
Plus agent is fluorine-containing sulfimide lithium.
Comparative example 2：
Lithium hexafluoro phosphate 1mol/L, ethyl carbonate：Dimethyl carbonate=1:1, additive accounts for carbonic ester volumn concentration 3%, adds
Plus agent is perfluoro methane-disulfonic acid methylene ester.
Comparative example 3：
Lithium hexafluoro phosphate 1mol/L, ethyl carbonate：Dimethyl carbonate=1:1, additive accounts for carbonic ester volumn concentration 3%, adds
Plus agent is sulfuric acid vinyl ester.
Comparative example 4：
Lithium hexafluoro phosphate 1mol/L, ethyl carbonate：Dimethyl carbonate=1:1, additive accounts for carbonic ester volumn concentration 1%, adds
Plus agent is perfluoro malononitrile.
Assembled battery is simultaneously tested,
Positive pole：According to positive electrode active materials LiCoO2：Conductive carbon black：PVDF=95:2:3, batch mixing adds solvent NMP, i.e. N methyl
Pyrrolidones, is mixed to get anode sizing agent；It is coated on aluminium foil, cut-parts obtain positive pole；
Negative pole：According to lithium titanate：Acetylene black：SBR=90:5:5, batch mixing adds aqueous solvent, is mixed to get cathode size, is coated on
On Copper Foil, cut-parts obtain negative pole；
Barrier film uses PE/PP/PE composite diaphragms,
Positive pole, barrier film, negative pole lamination are simultaneously wound, is fitted into housing, inject electrolyte, chemical conversion is vacuumized, sealed, and obtains electricity
Pond.
Following table is the test data of embodiment and comparative example, and storage temperature is 45 degree, and circulating current is 0.5C, charge cutoff
Voltage 4.3V, discharge cut-off voltage 2.7V, high temperature storage can more accelerate the aging speed of battery, can be simulated by high temperature storage
The storage at room temperature environment of longer time.It can be seen that, battery of the invention compares the battery of comparative example, although in first charge-discharge effect
Rate is relatively low, and circulation volume conservation rate also maintains an equal level with comparative example, but the circulation volume after high temperature storage 100 days keeps
Rate is significantly increased.
Although present disclosure is discussed in detail by above preferred embodiment, but it would be recognized that above-mentioned
Description be not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited by appended claim
It is fixed.
Claims (10)
1. a kind of smart home lithium-ion battery electrolytes, including electric conducting lithium salt, carbonate solvent, and are combined addition
Agent, it is characterised in that the concentration of electric conducting lithium salt is more than 2mol/L, carbonate solvent includes cyclic carbonate, and its body
Product content accounts for more than the 70% of carbonate solvent cumulative volume, and the answering in carbonate solvent percent by volume 5-10% containing total amount
Additive is closed, wherein compound additive is by fluorine-containing sulfimide lithium, fluomethane disulfonic acid methylene ester, sulfuric acid vinyl ester and fluorine
For dintrile, wherein fluorine-containing sulfimide lithium, the volume ratio of fluomethane disulfonic acid methylene ester, sulfuric acid vinyl ester and fluoro dintrile
Example is 1-1.5：2-4：2-4：0.5-1, and the volume summation of fluorine-containing sulfimide lithium and fluoro dintrile is molten no more than carbonic ester
Agent percent by volume 3%；Fluomethane disulfonic acid methylene ester, the volume summation of sulfuric acid vinyl ester are not less than carbonate solvent volume
Percentage 4%, fluorine-containing sulfimide lithium, fluomethane disulfonic acid methylene ester, the volume between sulfuric acid vinyl ester and fluoro dintrile
V proportionate relationships are, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester>VSulfuric acid vinyl ester+VFluoro dintrile。
2. electrolyte according to claim 1, the concentration of the electric conducting lithium salt is 2-4mol/L.
3. electrolyte according to claim 1, the carbonate solvent is selected from ethyl carbonate, propyl carbonate, butyl carbonate.
4. electrolyte according to claim 1, the carbonate solvent also includes linear carbonate.
5. electrolyte according to claim 1, the cyclic carbonate is 7 with the volume ratio of linear carbonate:3-9:
1。
6. electrolyte according to claim 1, compound additive is 6% in carbonate solvent percent by volume.
7. electrolyte according to claim 1, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester=coefficient ×（VSulfuric acid vinyl ester+VFluoro dintrile）, its
Middle coefficient>1.1.
8. electrolyte according to claim 1, VFluorine-containing sulfimide lithium+VFluomethane disulfonic acid methylene ester=coefficient ×（VSulfuric acid vinyl ester+VFluoro dintrile）, its
Middle coefficient=1.2.
9. electrolyte according to claim 1, the lithium salts is selected from lithium hexafluoro phosphate, LiBF4.
10. a kind of smart home lithium ion battery, it includes the electrolyte described in claim any one of 1-9, wherein negative pole
Including lithium titanate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012326.XA CN106784994B (en) | 2017-01-09 | 2017-01-09 | Lithium ion battery electrolyte for smart home and battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012326.XA CN106784994B (en) | 2017-01-09 | 2017-01-09 | Lithium ion battery electrolyte for smart home and battery |
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| Publication Number | Publication Date |
|---|---|
| CN106784994A true CN106784994A (en) | 2017-05-31 |
| CN106784994B CN106784994B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710012326.XA Expired - Fee Related CN106784994B (en) | 2017-01-09 | 2017-01-09 | Lithium ion battery electrolyte for smart home and battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232302A (en) * | 2017-12-30 | 2018-06-29 | 国联汽车动力电池研究院有限责任公司 | A kind of high concentration lithium salt electrolyte suitable for silicon-based anode lithium ion battery |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412418A (en) * | 2010-09-26 | 2012-04-11 | 比亚迪股份有限公司 | Lithium ion battery electrolyte and lithium ion battery containing same |
| CN105895954A (en) * | 2016-05-05 | 2016-08-24 | 东莞市凯欣电池材料有限公司 | High-stability power battery electrolyte |
| CN106099171A (en) * | 2016-07-13 | 2016-11-09 | 东莞市凯欣电池材料有限公司 | A kind of lithium ion power battery electrolyte and lithium-ion-power cell |
-
2017
- 2017-01-09 CN CN201710012326.XA patent/CN106784994B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412418A (en) * | 2010-09-26 | 2012-04-11 | 比亚迪股份有限公司 | Lithium ion battery electrolyte and lithium ion battery containing same |
| CN105895954A (en) * | 2016-05-05 | 2016-08-24 | 东莞市凯欣电池材料有限公司 | High-stability power battery electrolyte |
| CN106099171A (en) * | 2016-07-13 | 2016-11-09 | 东莞市凯欣电池材料有限公司 | A kind of lithium ion power battery electrolyte and lithium-ion-power cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232302A (en) * | 2017-12-30 | 2018-06-29 | 国联汽车动力电池研究院有限责任公司 | A kind of high concentration lithium salt electrolyte suitable for silicon-based anode lithium ion battery |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106784994B (en) | 2020-08-18 |
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