CN108550913A - A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte - Google Patents
A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte Download PDFInfo
- Publication number
- CN108550913A CN108550913A CN201810481875.6A CN201810481875A CN108550913A CN 108550913 A CN108550913 A CN 108550913A CN 201810481875 A CN201810481875 A CN 201810481875A CN 108550913 A CN108550913 A CN 108550913A
- Authority
- CN
- China
- Prior art keywords
- lithium
- ion battery
- electrolyte
- battery electrolytes
- carbonate
- 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
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
- H01M10/056—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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to technical field of lithium ion more particularly to a kind of lithium-ion battery electrolytes and containing the lithium ion battery of the electrolyte, electrolyte includes Non-aqueous Organic Solvents, lithium salts and additive, and the additive includes the compound for having functional group I.Compared with the prior art, the present invention is added to the compound with functional group I in the electrolytic solution, functional group I is made of boron boron key and four boron oxygen keys, respectively there are two boron oxygen keys for connection for each boron atom in boron boron key, the compound for having the functional group has stable positive and negative anodes filming function, can significantly improve the cycle life and high-temperature behavior of lithium ion battery.
Description
Technical field
The invention belongs to technical field of lithium ion more particularly to a kind of lithium-ion battery electrolytes and contain the electrolysis
The lithium ion battery of liquid.
Background technology
Lithium ion battery has many advantages, such as high-energy density as a kind of novel green battery, memory-less effect, gradually
It is selected as the mainstream of 3C numbers and onboard power.As application field is constantly widened, the requirement of lithium ion battery is also more next
Stringenter, a variety of different positive and negative pole materials also are continuously developed out.Lithium-ion battery electrolytes are as lithium ion battery
" blood ", it has extremely important shadow to the capacity performance of battery, first charge discharge efficiency, operating voltage, cycle life, high-temperature behavior
It rings.In higher energy density, higher cycle life, under the requirement of higher security performance, electrolyte carries increasingly
Harsh task.
In order to improve electrolyte electrochemistry performance and improve cathode deposition quality, be usually added into electrolyte a small amount of
Additive.Common additive generally has in vinylene carbonate (VC), fluorinated ethylene carbonate (FEC) and 1,3- propane sulfonic acids
Ester (1,3-PS) etc..Wherein, VC can form stable SEI films under conventional voltage, but under higher than 4.2V potentials, and VC is easy to divide
Solution oxidation generates the gases such as carbon dioxide, carbon monoxide；And although FEC can be high voltage withstanding, the SEI membrane impedances of formation are low, and negative
The compatibility superior performance of pole, but FEC is unstable at high temperature, is easy to react with solvent and lithium salts, generates HF gases, it is raw
At HF can further react generate H2O, in addition HF can corrode SEI films.
Invention content
It is an object of the present invention to：In view of the deficiencies of the prior art, a kind of lithium-ion battery electrolytes are provided, with
Significantly improve battery cycle life and high-temperature behavior.
To achieve the goals above, the present invention uses following technical scheme：
A kind of lithium-ion battery electrolytes, including Non-aqueous Organic Solvents, lithium salts and additive, the additive include tool
There is the compound of functional group I
The compound for having the functional group can be with alkylcarbonic acid ester group (ROCO2) it is incorporated in graphite surface deposition, it generates such as
Lower substance：
In addition, the additive can also be deposited on cathode surface passivation cathode with cathodic metal ions binding, A in following formula,
What D, G, M were indicated is metal ion, such as Co ions, Ni ions, Mn ions.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the compound with functional group I is
At least one of structural formula (a), (b), (c), (d) compound represented,
Wherein, R1~R4Selected from fluoro-alkyl, nitrogen, the alkylidene and-C-H that carbon atom number is 1~3；R5~R8Selected from fluorine
Alkenylene, carbonyl, sulfuryl and the cyano that alkylidene that substituted alkyl, nitrogen, carbon atom number are 1~3, carbon atom number are 1~3；R9
~R12Selected from fluoro-alkyl, carbon atom number be 1~3 alkyl, carbon atom number be 1~3 alkenyl and cyano.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the compound with functional group I
Content accounts for the 0.01%~5% of electrolyte gross mass.When compounds content with functional group I is excessively high, the SEI films of formation polarize
Greatly, high-temperature behavior is excellent, but is detrimental to recycle；When content is too low, film forming is not enough, and is unable to reach best effect.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the additive further include gamma-butyrolacton,
At least one of vinylene carbonate, fluorinated ethylene carbonate, sulfuric acid vinylene and 1,3- propane sulfonic acid lactones.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the Non-aqueous Organic Solvents are carbonic acid two
At least two in methyl esters, diethyl carbonate, methyl ethyl carbonate, propene carbonate, ethylene carbonate, propyl propionate and ethyl propionate
Kind.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the content of the Non-aqueous Organic Solvents accounts for
The 65%~85% of electrolyte gross mass.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the lithium salts is lithium hexafluoro phosphate, double grass
In sour lithium borate, difluorine oxalic acid boracic acid lithium, double fluorine sulfimide lithiums, LiBF4 and double trifluoromethanesulfonimide lithiums extremely
Few one kind.
As a kind of improvement of lithium-ion battery electrolytes of the present invention, the content of the lithium salts accounts for the total matter of electrolyte
The 10%~18% of amount.
It is another object of the present invention to provide a kind of lithium ion battery, including anode pole piece, cathode pole piece, diaphragm with
And electrolyte, the electrolyte are the previously described electrolyte of specification.
The beneficial effects of the present invention are：The present invention is added to the compound with functional group I, functional group in the electrolytic solution
I is made of boron boron key and four boron oxygen keys, and respectively there are two boron oxygen keys for connection for each boron atom in boron boron key, have the functional group
Compound have stable positive and negative anodes filming function.Stable SEI films have ensured battery high-temperature behavior and long circulation life.
Specific implementation mode
The present invention is described in further detail With reference to embodiment, but embodiments of the present invention are not
It is limited to this.
Comparative example 1
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, obtain the lithium of comparative example 1
Ion battery electrolyte.
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 1
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 0.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (e) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 2
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 2.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (e) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 3
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 5% and add
Add agent (e), obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (e) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 4
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 0.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (f) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 5
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 2.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (f) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 6
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 5% and add
Add agent (e), obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (f) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 7
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 0.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (g) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 8
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 2.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (g) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 9
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 5% and add
Add agent (e), obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (g) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 10
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 0.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (h) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 11
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 2.5%
Additive (e) obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (h) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
Embodiment 12
The preparation of electrolyte：
In the glove box (moisture ＜ 10ppm, oxygen ＜ 1ppm) full of argon gas, by ethylene carbonate, methyl ethyl carbonate,
Diethyl carbonate is with 1:1:1 mass ratio is uniformly mixed, and the LiPF of a concentration of 1mol/L is added in mixed solution6, stir to it
It is completely dissolved, and 1% vinylene carbonate and 2% 1,3-propane sultone is further added, be eventually adding 5% and add
Add agent (e), obtains the lithium-ion battery electrolytes of embodiment 1.The structural formula of additive (h) is as follows：
The preparation of battery：
The injection of prepared electrolyte to be dried in dewatered battery core, encapsulation is shelved, and is melted into, after the processes such as partial volume,
Obtain battery.
High-temperature storage test, loop test are carried out to battery, every group of each test uses 5 batteries, records average value.
The specific test method is as follows：
Test one：Battery high-temperature storge quality is tested：Under the conditions of 25 DEG C of room temperature, with 0.2C discharge test battery capacities, note
Record is initial capacity, and battery center thickness is recorded as original depth, and then by battery 0.5C constant-current constant-voltage chargings, 0.02C is cut
Only work step charges to 4.2V full power states, and battery is placed in 60 DEG C of baking ovens, stores 30 days, after recording 30 days, test heat thickness,
Residual capacity restores capacity, and calculated thickness expansion rate (with hot thick divided by original depth and is multiplied by 100%), residual capacity percentage
Than (with residual capacity divided by initial capacity and being multiplied by 100%), restore volume percent (simultaneously with recovery capacity divided by initial capacity
It is multiplied by 100%).
Test two：Battery high-temperature storge quality is tested：Under the conditions of 25 DEG C of room temperature, with 0.2C discharge test battery capacities, note
Record is initial capacity, and battery center thickness is recorded as original depth, and then by battery 0.5C constant-current constant-voltage chargings, 0.02C is cut
Only work step charges to 4.2V full power states, and battery is placed in 85 DEG C of baking ovens, stores 24 hours, and record is after 24 hours, test heat
Thickness, residual capacity restore capacity, and calculated thickness expansion rate (with hot thick divided by original depth and is multiplied by 100%), residual capacity hundred
Divide than (with residual capacity divided by initial capacity and being multiplied by 100%), restore volume percent (with recovery capacity divided by initial capacity
And it is multiplied by 100%).
Test three：Under the conditions of 25 DEG C of room temperature, with 0.5 electric current constant-current constant-voltage charging to 4.2V, cut-off current is battery
0.05C, then with 0.5C current discharges to 3.0V, first time cyclic discharge capacity is recorded as initial capacity, according to above-mentioned condition into
Row cycle charging and electric discharge record the discharge capacity after the 500th cycle, calculate the conservation rate after cycle (with the 500th time follow
100%) ring discharge capacity divided by for the first time initial capacity of cycle are simultaneously multiplied by.
Test four：Under the conditions of temperature 45 C, with 0.5 electric current constant-current constant-voltage charging to 4.2V, cut-off current is battery
0.05C, then with 0.5C current discharges to 3.0V, first time cyclic discharge capacity is recorded as initial capacity, according to above-mentioned condition into
Row cycle charging and electric discharge record the discharge capacity after the 500th cycle, calculate the conservation rate after cycle (with the 500th time follow
100%) ring discharge capacity divided by for the first time initial capacity of cycle are simultaneously multiplied by.
Every test result is referring to table 1.
1 test result of table
From the related data in table 1 it is known that 1 high temperature of comparative example storage, 85 DEG C of storages, 24 hours aerogenesis are very tight
Weight, thickness swelling is very big, and in embodiment 1~12, thickness swelling is smaller, aerogenesis phenomenon does not occur.In 45 DEG C of cycles of high temperature
In, when 500 weeks, 1 circulation volume conservation rate of comparative example down to 71.23%, comparative example 1 under equal conditions~
12 groups, capacity retention ratio ＞ 87%, it can be seen that, its high-temperature storage performance of battery obtained by embodiment 1~12 and cycle longevity
Life is significantly improved.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in above-mentioned specific implementation mode, every those skilled in the art exist
Made any conspicuously improved, replacement or modification all belongs to the scope of protection of the present invention on the basis of the present invention.This
Outside, although having used some specific terms in this specification, these terms are merely for convenience of description, not to the present invention
Constitute any restrictions.
Claims (9)
1. a kind of lithium-ion battery electrolytes, including Non-aqueous Organic Solvents, lithium salts and additive, it is characterised in that：It is described to add
It includes the compound for having functional group I to add agent
2. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The compound with functional group I
For at least one of structural formula (a), (b), (c), (d) compound represented,
Wherein, R1~R4Selected from fluoro-alkyl, nitrogen, the alkylidene and-C-H that carbon atom number is 1~3；R5~R8Selected from fluoroalkane
Alkenylene, carbonyl, sulfuryl and the cyano that alkylidene that base, nitrogen, carbon atom number are 1~3, carbon atom number are 1~3；R9~R12
Selected from fluoro-alkyl, carbon atom number be 1~3 alkyl, carbon atom number be 1~3 alkenyl and cyano.
3. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The compound with functional group I
Content account for the 0.01%~5% of electrolyte gross mass.
4. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The additive further includes γ-Ding Nei
At least one of ester, vinylene carbonate, fluorinated ethylene carbonate, sulfuric acid vinylene and 1,3- propane sulfonic acid lactones.
5. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The Non-aqueous Organic Solvents are carbonic acid
In dimethyl ester, diethyl carbonate, methyl ethyl carbonate, propene carbonate, ethylene carbonate, propyl propionate and ethyl propionate at least
Two kinds.
6. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The content of the Non-aqueous Organic Solvents
Account for the 65%~85% of electrolyte gross mass.
7. lithium-ion battery electrolytes according to claim 1, it is characterised in that：The lithium salts is lithium hexafluoro phosphate, double
In Lithium bis (oxalate) borate, difluorine oxalic acid boracic acid lithium, double fluorine sulfimide lithiums, LiBF4 and double trifluoromethanesulfonimide lithiums
It is at least one.
8. lithium-ion battery electrolytes according to claim 1, it is characterised in that：It is total that the content of the lithium salts accounts for electrolyte
The 10%~18% of quality.
9. a kind of lithium ion battery, including anode pole piece, cathode pole piece, diaphragm and electrolyte, it is characterised in that：The electrolysis
Liquid is claim 1~8 any one of them electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481875.6A CN108550913A (en) | 2018-05-18 | 2018-05-18 | A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481875.6A CN108550913A (en) | 2018-05-18 | 2018-05-18 | A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108550913A true CN108550913A (en) | 2018-09-18 |
Family
ID=63495217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810481875.6A Pending CN108550913A (en) | 2018-05-18 | 2018-05-18 | A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108550913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802180A (en) * | 2019-01-25 | 2019-05-24 | 宁德新能源科技有限公司 | Electrolyte and electrochemical appliance |
| CN113299903A (en) * | 2021-05-24 | 2021-08-24 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140023941A1 (en) * | 2011-04-06 | 2014-01-23 | Uchicago Argonne Llc | Non-aqueous electrolytes for lithium-air batteries |
| US20150180087A1 (en) * | 2013-12-19 | 2015-06-25 | Sk Innovation Co., Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery containing the same |
| CN104868163A (en) * | 2014-02-20 | 2015-08-26 | 索尼公司 | Nonaqueous electrolyte solution for secondary battery, secondary battery, battery pack, electrically driven vehicle, power storage system, electrically driven tool, and electronic apparatus |
-
2018
- 2018-05-18 CN CN201810481875.6A patent/CN108550913A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140023941A1 (en) * | 2011-04-06 | 2014-01-23 | Uchicago Argonne Llc | Non-aqueous electrolytes for lithium-air batteries |
| US20150180087A1 (en) * | 2013-12-19 | 2015-06-25 | Sk Innovation Co., Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery containing the same |
| CN104868163A (en) * | 2014-02-20 | 2015-08-26 | 索尼公司 | Nonaqueous electrolyte solution for secondary battery, secondary battery, battery pack, electrically driven vehicle, power storage system, electrically driven tool, and electronic apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802180A (en) * | 2019-01-25 | 2019-05-24 | 宁德新能源科技有限公司 | Electrolyte and electrochemical appliance |
| CN113299903A (en) * | 2021-05-24 | 2021-08-24 | 宁德新能源科技有限公司 | Electrochemical device and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104766995B (en) | Electrolyte additive and application thereof in lithium ion battery | |
| CN109546219A (en) | A kind of lithium-ion battery electrolytes and the lithium ion battery using the electrolyte | |
| CN109473713A (en) | A kind of high-voltage electrolyte for taking into account high temperature performance and the lithium ion battery using the electrolyte | |
| CN107017432B (en) | Nonaqueous electrolytic solution and lithium ion battery | |
| CN109873205A (en) | A kind of electrolyte suitable for silicon-carbon cathode and the lithium ion battery comprising the electrolyte | |
| CN110148784A (en) | A kind of electrolyte and the lithium ion battery using the electrolyte | |
| CN104466247B (en) | A kind of lithium ion battery of nonaqueous electrolytic solution and the application electrolyte | |
| CN108232300A (en) | A kind of lithium ion battery and its electrolyte | |
| CN106486696B (en) | A kind of non-aqueous electrolyte for lithium ion cell and lithium ion battery | |
| CN109687021A (en) | A kind of high temp resistance lithium ion cell nonaqueous electrolytic solution | |
| CN111900470B (en) | Multifunctional high-voltage lithium ion battery electrolyte and high-voltage lithium ion battery | |
| CN104332653A (en) | Non-aqueous electrolyte and lithium ion battery using the same | |
| CN105762410B (en) | A kind of nonaqueous electrolytic solution and the lithium ion battery using the nonaqueous electrolytic solution | |
| CN109742445A (en) | Addictive with dual functions, electrolyte and lithium ion battery comprising it | |
| CN105449282B (en) | Fluoropropylene carbonate base electrolyte and lithium ion battery | |
| CN108417894A (en) | A kind of lithium secondary cell electrolyte and lithium secondary battery | |
| CN108336408A (en) | A kind of lithium ion battery nonaqueous electrolytic solution | |
| CN111082145A (en) | Lithium ion battery electrolyte matched with silicon-carbon graphite cathode and lithium ion battery | |
| CN110474088A (en) | A kind of ternary high-voltage lithium-ion battery electrolyte | |
| US20220181690A1 (en) | Electrolyte additive, non-aqueous electrolyte, and lithium ion battery using same | |
| CN108550913A (en) | A kind of lithium-ion battery electrolytes and the lithium ion battery containing the electrolyte | |
| CN109411818A (en) | A kind of lithium-ion battery electrolytes improving cathode film formation | |
| CN109473717A (en) | A kind of electrolyte and the high nickel-based battery of high voltage suitable for the high nickel power battery of high voltage | |
| CN108808084A (en) | Non-aqueous electrolyte for lithium ion cell and lithium ion battery | |
| CN110224175A (en) | A kind of non-aqueous electrolyte for lithium ion cell and the lithium ion battery comprising the electrolyte |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |