CN106099188A - Explosion-proof lithium-ion battery electrolytes - Google Patents
Explosion-proof lithium-ion battery electrolytes Download PDFInfo
- Publication number
- CN106099188A CN106099188A CN201610598093.1A CN201610598093A CN106099188A CN 106099188 A CN106099188 A CN 106099188A CN 201610598093 A CN201610598093 A CN 201610598093A CN 106099188 A CN106099188 A CN 106099188A
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- Prior art keywords
- additive
- weight
- electrolyte
- explosion
- ion battery
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Classifications
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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
-
- 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
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
It is an object of the invention to provide a kind of explosion-proof lithium-ion battery electrolytes, three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution is used to have higher flash-point, the burning of electrolyte can be suppressed, ethylmethane sulfonate additive is used to have good filming performance and low-temperature conductive performance, use tricresyl phosphite methyl ester additive can improve the anti-flammability of electrolyte simultaneously, the chemical property of positive pole half-cell can also be improved, phosphorus nitrence additive makes electrolyte produce flame retardancy or the effect of incombustibility, and do not affect the chemical property of battery itself, there is the safety anti-explosive performance of excellence.
Description
Technical field
The present invention relates to field of lithium ion battery, particularly relate to a kind of explosion-proof lithium-ion battery electrolytes.
Background technology
Electrolyte is one of the big critical material of lithium ion battery four (positive pole, negative pole, barrier film, electrolyte), is known as lithium ion
" blood " of battery, plays the effect of conduction electronics in the battery between both positive and negative polarity, be that lithium ion battery obtains high voltage, high ratio
The guarantee of the advantages such as energy.Electrolyte is typically by highly purified organic solvent, electrolyte lithium salt (lithium hexafluoro phosphate, LiFL6), necessity
The raw material such as additive, under certain condition, the most formulated.At present for lithium ion battery, usually
The danger of battery explosion can occur, and therefore the security performance of electrolyte is particularly significant, therefore solves the problems referred to above and just seems very
Necessary.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of explosion-proof lithium-ion battery electrolytes, uses three fluoro carbonic acid third
Alkene ester and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution have higher flash-point, can suppress
The burning of electrolyte, uses ethylmethane sulfonate additive to have good filming performance and low-temperature conductive performance, uses phosphorous
Acid trimethyl ester additive can improve the anti-flammability of electrolyte simultaneously, moreover it is possible to improves the chemical property of positive pole half-cell, phosphorus
Nitrence additive makes electrolyte produce flame retardancy or the effect of incombustibility, and does not affect the chemical property of battery itself, has
There is the safety anti-explosive performance of excellence, solve produced problem in background technology.
It is an object of the invention to provide a kind of explosion-proof lithium-ion battery electrolytes, include LiPF6 electrolyte, include
Following solvent is plus additive:
Three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution, methyl sulphur
Acetoacetic ester additive, tricresyl phosphite methyl ester additive, phosphorus nitrence additive.
Further improvement is that: the weight of described three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate is that solvent adds and adds
Add (32-36) % of agent weight；The weight of described ethylene carbonate and Allyl carbonate is the (36-that solvent adds weight of additive
40) %；The weight of described ethylmethane sulfonate additive is (6-10) % that solvent adds weight of additive；Described phosphorous acid front three
The weight of base ester additive is (6-10) % that solvent adds weight of additive；The weight of described phosphorus nitrence additive is that solvent adds
(4-8) % of upper weight of additive.
Beneficial effects of the present invention: the present invention uses three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene
Alkene ester and Allyl carbonate mixed solution have higher flash-point, can suppress the burning of electrolyte, use ethylmethane sulfonate
Additive has good filming performance and low-temperature conductive performance, uses tricresyl phosphite methyl ester additive can improve electrolyte
Anti-flammability simultaneously, moreover it is possible to improve the chemical property of positive pole half-cell, phosphorus nitrence additive make electrolyte produce flame retardancy or
The effect of incombustibility, and do not affect the chemical property of battery itself, there is the safety anti-explosive performance of excellence.
Detailed description of the invention
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, this embodiment
It is only used for explaining the present invention, is not intended that limiting the scope of the present invention.
Embodiment one:
The present embodiment provides a kind of explosion-proof lithium-ion battery electrolytes, includes LiPF6 electrolyte, includes following solvent and add
Upper additive:
Three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution, methyl sulphur
Acetoacetic ester additive, tricresyl phosphite methyl ester additive, phosphorus nitrence additive.
The weight of described three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate is that solvent adds the 32% of weight of additive.
The weight of described ethylene carbonate and Allyl carbonate is that solvent adds the 40% of weight of additive.Described ethylmethane sulfonate adds
The weight adding agent is that solvent adds the 10% of weight of additive.The weight of described tricresyl phosphite methyl ester additive is that solvent adds
The 10% of weight of additive.The weight of described phosphorus nitrence additive is that solvent adds the 8% of weight of additive.
Embodiment two:
The present embodiment provides a kind of explosion-proof lithium-ion battery electrolytes, includes LiPF6 electrolyte, includes following solvent and add
Upper additive:
Three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution, methyl sulphur
Acetoacetic ester additive, tricresyl phosphite methyl ester additive, phosphorus nitrence additive.
The weight of described three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate is that solvent adds the 36% of weight of additive.
The weight of described ethylene carbonate and Allyl carbonate is that solvent adds the 36% of weight of additive.Described ethylmethane sulfonate adds
The weight adding agent is that solvent adds the 10% of weight of additive.The weight of described tricresyl phosphite methyl ester additive is that solvent adds
The 10% of weight of additive.The weight of described phosphorus nitrence additive is that solvent adds the 8% of weight of additive.
Embodiment three:
The present embodiment provides a kind of explosion-proof lithium-ion battery electrolytes, includes LiPF6 electrolyte, includes following solvent and add
Upper additive:
Three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution, methyl sulphur
Acetoacetic ester additive, tricresyl phosphite methyl ester additive, phosphorus nitrence additive.
The weight of described three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate is that solvent adds the 36% of weight of additive.
The weight of described ethylene carbonate and Allyl carbonate is that solvent adds the 40% of weight of additive.Described ethylmethane sulfonate adds
The weight adding agent is that solvent adds the 10% of weight of additive.The weight of described tricresyl phosphite methyl ester additive is that solvent adds
The 10% of weight of additive.The weight of described phosphorus nitrence additive is that solvent adds the 4% of weight of additive.
Above example uses three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and carbonic acid third
Alkene ester mixed solution has higher flash-point, can suppress the burning of electrolyte, uses ethylmethane sulfonate additive to have good
Good filming performance and low-temperature conductive performance, the anti-flammability that employing tricresyl phosphite methyl ester additive can improve electrolyte is same
Time, moreover it is possible to improving the chemical property of positive pole half-cell, phosphorus nitrence additive makes electrolyte produce flame retardancy or incombustibility
Effect, and do not affect the chemical property of battery itself, there is the safety anti-explosive performance of excellence.
Claims (2)
1. an explosion-proof lithium-ion battery electrolytes, includes LiPF6 electrolyte, it is characterised in that: include following solvent
Plus additive:
Three fluoropropylene carbonates and chlorocarbonic acid vinyl acetate and ethylene carbonate and Allyl carbonate mixed solution, methyl sulphur
Acetoacetic ester additive, tricresyl phosphite methyl ester additive, phosphorus nitrence additive.
The most explosion-proof lithium-ion battery electrolytes, it is characterised in that: described three fluoropropylene carbonates and
The weight of chlorocarbonic acid vinyl acetate is (32-36) % that solvent adds weight of additive；Described ethylene carbonate and Allyl carbonate
Weight be (36-40) % that solvent adds weight of additive；The weight of described ethylmethane sulfonate additive is that solvent adds and adds
Add (6-10) % of agent weight；The weight of described tricresyl phosphite methyl ester additive is the (6-that solvent adds weight of additive
10) %；The weight of described phosphorus nitrence additive is (4-8) % that solvent adds weight of additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598093.1A CN106099188A (en) | 2016-07-27 | 2016-07-27 | Explosion-proof lithium-ion battery electrolytes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598093.1A CN106099188A (en) | 2016-07-27 | 2016-07-27 | Explosion-proof lithium-ion battery electrolytes |
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| CN106099188A true CN106099188A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610598093.1A Pending CN106099188A (en) | 2016-07-27 | 2016-07-27 | Explosion-proof lithium-ion battery electrolytes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994231A (en) * | 2017-10-13 | 2018-05-04 | 北京汉能光伏投资有限公司 | Flame-retardant additive, cosolvent and lithium ion battery |
Citations (3)
| 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 |
| CN105390748A (en) * | 2015-12-14 | 2016-03-09 | 苏州华一新能源科技有限公司 | Lithium ion battery electrolyte and lithium ion battery |
| CN105680097A (en) * | 2016-01-25 | 2016-06-15 | 山东玉皇新能源科技有限公司 | High-safety lithium-ion battery electrolyte solution |
-
2016
- 2016-07-27 CN CN201610598093.1A patent/CN106099188A/en active Pending
Patent Citations (3)
| 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 |
| CN105390748A (en) * | 2015-12-14 | 2016-03-09 | 苏州华一新能源科技有限公司 | Lithium ion battery electrolyte and lithium ion battery |
| CN105680097A (en) * | 2016-01-25 | 2016-06-15 | 山东玉皇新能源科技有限公司 | High-safety lithium-ion battery electrolyte solution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994231A (en) * | 2017-10-13 | 2018-05-04 | 北京汉能光伏投资有限公司 | Flame-retardant additive, cosolvent and lithium ion battery |
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Application publication date: 20161109 |
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