CN107528088A - A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte - Google Patents
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte Download PDFInfo
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- CN107528088A CN107528088A CN201610440944.XA CN201610440944A CN107528088A CN 107528088 A CN107528088 A CN 107528088A CN 201610440944 A CN201610440944 A CN 201610440944A CN 107528088 A CN107528088 A CN 107528088A
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- 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
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- 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
- H01M10/0568—Liquid materials characterised by the solutes
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0034—Fluorinated solvents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0037—Mixture of solvents
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- 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 invention discloses a kind of high-energy-density positive electrode to be adapted to high-voltage electrolyte, it is made up of components such as organic solvent, electrolyte lithium salt, positive pole film for additive and cathode film formation additives, organic solvent is made up of carbonates and fluorinated solvents, electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, cathode film formation additive are made up of 1,3 acrylic sultones and vinylethylene carbonate.High-voltage electrolyte provided by the invention, 4.5~5.0V charging voltage can be applicable, there is preferable resistance to oxidation, high temperature resistant and security feature, using the high energy density cells of the electrolyte, there is good circulation and security performance under high pressure, high temperature.
Description
Technical field
The present invention relates to lithium-ion battery electrolytes technical field, is fitted more particularly, to a kind of high-energy-density positive electrode
With high-voltage electrolyte.
Background technology
Lithium ion battery is a kind of secondary cell for migrating and being operated between a positive electrode and a negative electrode by lithium ion, lithium from
Sub- battery has higher energy density, is a kind of capacity secondary cell efficient greatly.Pursue higher energy density be lithium from
One important development direction of sub- battery, but a bottleneck of lithium ion battery with high energy density development is exactly a kind of and high energy
The high-voltage electrolyte that amount lithium ion battery electrode material matches.At present, the system of conventional carbonic ester electrolyte is mainly with 4.2V
Based on, the positive electrode for high-energy-density is, it is necessary to be resistant to the electrolyte of higher voltage system, in high-voltage electrolyte
Solvent, lithium salts and positive pole interface there is enough electrochemical stabilities.Conventional carbonate solvent and lithium hexafluoro phosphate composition
Electrolyte can decompose when tying up to more than 4.5V, cause internal pressure to increase, and temperature rise, cycle performance of battery declines, capacity
Rapid decay.
The content of the invention
To solve the above problems, the invention provides a kind of high-voltage electrolyte that is high pressure resistant, having high electrochemical stability.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive, organic solvent is made up of carbonates and fluorinated solvents, and electrolyte lithium salt is by lithium hexafluoro phosphate
Formed with difluorine oxalic acid boracic acid lithium, positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, bear
Pole film for additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate.
Fluorinated solvents improve the high voltage performance of electrolyte solvent system as cosolvent, while fluorinated solvents have height
Flash-point or the characteristic without flash-point, be advantageous to battery in high temperature, the security performance under abuse state such as overcharge；Electrolyte lithium salt is six
Lithium fluophosphate and difluorine oxalic acid boracic acid lithium（LiDFOB）Mixture, using the cooperative effect of two kinds of lithium salts, ensure the resistance to of battery
High pressure, high temperature and cycle characteristics；Anode additive preferentially reacts to form one layer of conductive protective film with positive pole, presses down under high pressure
Electrolyte processed reacts with positive pole material material, prevents the precipitation of cathode metal ion, protects the stability of positive pole；Cathode film formation
Additive can form the SEM films of stable densification with negative pole, further improve circulation and the high-temperature behavior of battery.
Preferably, the concentration of electrolyte lithium salt is 0.9~1.2mol/L；Wherein lithium hexafluoro phosphate molar percentage ratio is
10~30%, surplus is difluorine oxalic acid boracic acid lithium.
Because lithium hexafluoro phosphate heat endurance is poor, dissolving at high temperature is decomposed, and causes battery performance to deteriorate, use is high temperatures
Electrolytic salt difluorine oxalic acid boracic acid lithium is used in mixed way, and difluorine oxalic acid boracic acid lithium decomposition temperature is higher, on the one hand improves electrolyte
High-temperature stability, eliminate the influence of HF in cyclic process；On the other hand, difluorine oxalic acid boracic acid lithium has higher electrochemical window
Mouthful, the high pressure resistant property of electrolyte is further improved, using the cooperative effect of two kinds of lithium salts, ensures high pressure resistant, the resistance to height of battery
Temperature characteristics.
Preferably, the mass percent that positive pole film for additive accounts for electrolyte is 0.2~4%, wherein nitrile additive accounts for
The 50% of positive pole film for additive gross mass, surplus three（Hexafluoro isopropyl）Phosphate.
Preferably, the nitrile additive in positive pole film for additive is one kind in succinonitrile, adiponitrile or hexamethylene dicyanide
It is or a variety of.
Positive pole film for additive three（Hexafluoro isopropyl）Phosphate（HFiP）Can be prior to electrolyte solvent relatively low
Current potential under oxidation Decomposition, stable and good homogeneity interfacial film is formed in electrode surface, it is suppressed that the decomposition of electrolyte, ensure
The stability of electrolyte component, reduces the generation of side reaction between electrode and positive electrode, maintains electrode/electrolyte circle
The stability in face, cathode film layer impedance and electrochemistry load transfer impedance of the material in cyclic process are advantageously reduced, is beneficial to lithium
Ion in electrode reversibly intercalation/deintercalation, effectively improves the electrochemistry of high-energy-density positive electrode in cyclic process
Performance；Nitrile additive has wider electrochemical window, good hot property, moderate dielectric constant, Chang Zuogao additives
It is preferred, nitrile additive can further participate in positive pole film forming, suppress the decomposition of electrolyte and the dissolving of cathode metal ion,
Ensure the stability of electrolyte and positive electrode.
Preferably, the mass percent that cathode film formation additive accounts for electrolyte is 1~4%.
Add cathode film formation additive 1,3- acrylic-sultones（PST）, help to be formed that impedance is low, stability is high
Negative pole SEI films, while PST can reduce the reaction of electrolyte and both positive and negative polarity, effectively increase the resistance to oxidation of electrolyte and resistance to
Hot properties；Vinylethylene carbonate（VEC）Additive VC is added relative to the cathode film formation of routine, can be formed finer and close steady
Fixed SEM films, there is more preferable high-temperature behavior.
Preferably, the carbonates in organic solvent are by ethylene carbonate, methyl ethyl carbonate alkene ester and dimethyl carbonate group
Into its volume ratio is 2~3：4~6：1~2；Fluorinated solvents in organic solvent are fluorinated ethylene carbonate, trifluoromethy carbon
The volume of vinyl acetate or one or more, wherein fluorinated solvents and carbonates in two (2,2,2- trifluoroethyl) carbonic esters
Than for 5~20：95~80.
Fluorinated solvents improve the high voltage performance of electrolyte solvent system as cosolvent, while fluorinated solvents have height
Flash-point or the characteristic without flash-point, be advantageous to battery in high temperature, the security performance under abuse state such as overcharge.
Therefore, the invention has the advantages that：
（1）High-voltage electrolyte provided by the invention, 4.5~5.0V charging voltage can be applicable；
（2）High-voltage electrolyte provided by the invention, there is preferable resistance to oxidation, high temperature resistant and security feature；
（3）Using the high energy density cells of the electrolyte, there is good circulation and security performance under high pressure, high temperature.
Embodiment
Technical scheme is further described with reference to embodiment.
Embodiment 1
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 2：4：1, the fluorinated solvents in organic solvent are fluorinated ethylene carbonate,
Wherein the volume ratio of fluorinated solvents and carbonates is 5：95；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 0.9mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 10%, and difluorine oxalic acid boracic acid lithium molar percentage is 90%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive is succinonitrile,
The mass percent that positive pole film for additive accounts for electrolyte is 0.2%, and wherein nitrile additive accounts for positive pole film for additive gross mass
50%, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 1%.
Embodiment 2
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 2：6：2, the fluorinated solvents in organic solvent are trifluoromethy ethylene
The volume ratio of alkene ester, wherein fluorinated solvents and carbonates is 15：85；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 1.05mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 20%, and difluorine oxalic acid boracic acid lithium molar percentage is 80%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive is adiponitrile,
The mass percent that positive pole film for additive accounts for electrolyte is 2.1%, and wherein nitrile additive accounts for positive pole film for additive gross mass
50%, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 2.5%.
Embodiment 3
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 3：6：2, the fluorinated solvents in organic solvent are two (2,2,2- trifluoro second
Base) carbonic ester wherein fluorinated solvents and carbonates volume ratio be 20：80；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 1.2mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 30%, and surplus is that difluorine oxalic acid boracic acid lithium molar percentage is 70%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive is hexamethylene dicyanide,
The mass percent that positive pole film for additive accounts for electrolyte is 4%, and wherein nitrile additive accounts for positive pole film for additive gross mass
50%, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 4%.
Embodiment 4
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 2：6：2, fluorinated solvents in organic solvent for fluorinated ethylene carbonate and
The volume ratio of the mixture of trifluoromethy ethylene carbonate, wherein fluorinated solvents and carbonates is 15：85；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 1.05mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 20%, and difluorine oxalic acid boracic acid lithium molar percentage is 80%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive be succinonitrile and
The mixture of adiponitrile, the mass percent that positive pole film for additive accounts for electrolyte is 2.1%, and wherein nitrile additive accounts for positive pole
The 50% of film for additive gross mass, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 2.5%.
Embodiment 5
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 2：6：2, fluorinated solvents in organic solvent for fluorinated ethylene carbonate and
The mixture of two (2,2,2- trifluoroethyl) carbonic esters, the wherein volume ratio of fluorinated solvents and carbonates are 15：85；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 1.05mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 20%, and difluorine oxalic acid boracic acid lithium molar percentage is 80%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive be succinonitrile and
The mixture of hexamethylene dicyanide, the mass percent that positive pole film for additive accounts for electrolyte is 2.1%, and wherein nitrile additive accounts for positive pole
The 50% of film for additive gross mass, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 2.5%.
Embodiment 6
A kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, by organic solvent, electrolyte lithium salt, positive pole film for additive
Formed with cathode film formation additive；
Organic solvent is made up of carbonates and fluorinated solvents, and the carbonates in organic solvent are by ethylene carbonate, carbonic acid first
Vinyl acetate and dimethyl carbonate composition, its volume ratio are 2：6：2, the fluorinated solvents in organic solvent are trifluoromethy ethylene
The mixture of alkene ester and two (2,2,2- trifluoroethyl) carbonic esters, the wherein volume ratio of fluorinated solvents and carbonates are 15：85；
Electrolyte lithium salt is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, and the concentration of electrolyte lithium salt is 1.05mol/L, its
Middle lithium hexafluoro phosphate molar percentage is 20%, and difluorine oxalic acid boracic acid lithium molar percentage is 80%；
Positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile additive composition, nitrile additive be adiponitrile and
The mixture of hexamethylene dicyanide, the mass percent that positive pole film for additive accounts for electrolyte is 2.1%, and wherein nitrile additive accounts for positive pole
The 50% of film for additive gross mass, three（Hexafluoro isopropyl）Phosphate accounts for the 50% of positive pole film for additive gross mass；
Cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate, and cathode film formation additive accounts for
The mass percent of electrolyte is 2.5%.
High-voltage electrolyte provided by the invention, 4.5~5.0V charging voltage can be applicable, have preferable resistance to oxidation,
High temperature resistant and security feature, using the high energy density cells of the electrolyte, there is good circulation and peace under high pressure, high temperature
Full performance.
Claims (6)
1. a kind of high-energy-density positive electrode is adapted to high-voltage electrolyte, added by organic solvent, electrolyte lithium salt, positive pole film forming
Agent and cathode film formation additive composition, it is characterised in that：Organic solvent is made up of carbonates and fluorinated solvents, electrolyte lithium salt
It is made up of lithium hexafluoro phosphate and difluorine oxalic acid boracic acid lithium, positive pole film for additive is by three（Hexafluoro isopropyl）Phosphate and nitrile add
Agent is added to form, cathode film formation additive is made up of 1,3- acrylic-sultones and vinylethylene carbonate.
A kind of 2. high-energy-density positive electrode adaptation high-voltage electrolyte according to claim 1, it is characterised in that：It is described
The concentration of electrolyte lithium salt is 0.9~1.2mol/L；Wherein lithium hexafluoro phosphate molar percentage ratio is 10~30%, surplus two
Fluorine Lithium bis (oxalate) borate.
A kind of 3. high-energy-density positive electrode adaptation high-voltage electrolyte according to claim 1, it is characterised in that：It is described
The mass percent that positive pole film for additive accounts for electrolyte is 0.2~4%, and it is total to account for positive pole film for additive for wherein nitrile additive
The 50% of quality, surplus three（Hexafluoro isopropyl）Phosphate.
A kind of 4. high-energy-density positive electrode adaptation high-voltage electrolyte according to claim 1 or 3, it is characterised in that：
Nitrile additive in the positive pole film for additive is the one or more in succinonitrile, adiponitrile or hexamethylene dicyanide.
A kind of 5. high-energy-density positive electrode adaptation high-voltage electrolyte according to claim 1, it is characterised in that：It is described
The mass percent that cathode film formation additive accounts for electrolyte is 1~4%.
A kind of 6. high-energy-density positive electrode adaptation high-voltage electrolyte according to claim 1, it is characterised in that：It is described
Carbonates in organic solvent are made up of ethylene carbonate, methyl ethyl carbonate alkene ester and dimethyl carbonate, and its volume ratio is 2~3：
4~6：1~2；Fluorinated solvents in organic solvent are fluorinated ethylene carbonate, trifluoromethy ethylene carbonate or two (2,2,
2- trifluoroethyls) one or more in carbonic ester, the wherein volume ratio of fluorinated solvents and carbonates is 5~20：95~80.
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|---|---|---|---|---|
| CN108493439A (en) * | 2018-01-23 | 2018-09-04 | 江苏大学 | A kind of production method of button and Soft Roll full battery |
| CN108598488A (en) * | 2018-06-08 | 2018-09-28 | 东莞市杉杉电池材料有限公司 | A kind of lithium ion battery with high energy density and its electrolyte |
| 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 |
| CN111816915A (en) * | 2020-06-10 | 2020-10-23 | 天津空间电源科技有限公司 | High-voltage polymer electrolyte and preparation method of solid-state battery thereof |
| CN111900472A (en) * | 2020-06-30 | 2020-11-06 | 远景动力技术(江苏)有限公司 | Non-aqueous electrolyte of lithium ion battery |
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| CN115332637A (en) * | 2022-09-06 | 2022-11-11 | 香河昆仑新能源材料股份有限公司 | High lithium salt concentration electrolyte and use method thereof in lithium ion battery |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826635A (en) * | 2010-04-09 | 2010-09-08 | 广州天赐高新材料股份有限公司 | Polymer electrolyte for lithium battery and manufacturing method of battery thereof |
| CN102637894A (en) * | 2012-04-06 | 2012-08-15 | 宁德新能源科技有限公司 | Secondary battery with non-aqueous electrolyte |
| CN103268956A (en) * | 2013-05-18 | 2013-08-28 | 山东鸿正电池材料科技有限公司 | Non-aqueous electrolyte for high-voltage lithium ion batteries |
| CN104218258A (en) * | 2014-09-17 | 2014-12-17 | 宜春金晖新能源材料有限公司 | Over-charging prevention flame-retardant battery electrolyte |
| CN104900916A (en) * | 2015-06-26 | 2015-09-09 | 广州天赐高新材料股份有限公司 | Electrolyte solution for high-capacity lithium-ion battery, preparation method and lithium-ion battery |
| CN104981934A (en) * | 2012-11-12 | 2015-10-14 | 诺莱特科技公司 | Non-aqueous electrolytic solutions and electrochemical cells comprising same |
| CN105428714A (en) * | 2014-09-16 | 2016-03-23 | Sk新技术株式会社 | Electrolyte for lithium secondary battery and lithium secondary battery containing the same |
| CN105440010A (en) * | 2014-09-18 | 2016-03-30 | Sk新技术株式会社 | Compound and Electrolyte of Lithium Secondary Battery Containing the Same |
| US20160126582A1 (en) * | 2014-10-31 | 2016-05-05 | Battelle Memorial Institute | Preformation of stable solid electrolyte interface films on graphite-material electrodes |
| CN105826608A (en) * | 2016-05-25 | 2016-08-03 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery containing electrolyte |
| CN105826607A (en) * | 2016-05-25 | 2016-08-03 | 宁德新能源科技有限公司 | Electrolyte and lithium ion battery containing electrolyte |
-
2016
- 2016-06-20 CN CN201610440944.XA patent/CN107528088A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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