CN109980282B - Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery - Google Patents
Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery Download PDFInfo
- Publication number
- CN109980282B CN109980282B CN201910281522.6A CN201910281522A CN109980282B CN 109980282 B CN109980282 B CN 109980282B CN 201910281522 A CN201910281522 A CN 201910281522A CN 109980282 B CN109980282 B CN 109980282B
- Authority
- CN
- China
- Prior art keywords
- temperature
- low
- lithium ion
- ion battery
- lithium
- 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.)
- Active
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
- H01M10/052—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
- H01M10/0568—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
-
- 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
- H01M2300/0042—Four or more 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the field of lithium ion batteries, in particular to a low-temperature-resistant non-aqueous electrolyte of a lithium ion battery and the lithium ion battery. The non-aqueous electrolyte of the low-temperature-resistant lithium ion battery comprises electrolyte lithium salt, a non-aqueous organic solvent and a film-forming additive, wherein the film-forming additive comprises a conventional film-forming additive and a low-temperature-resistant additive with a structure shown in a formula (I). The low-temperature resistant additive can be reduced to form a film on the surface of a negative electrode material in preference to a solvent, the formed SEI film has low impedance and is beneficial to the insertion and extraction of ions, so that the low-temperature performance of the lithium ion battery is greatly improved, the non-aqueous organic solvent also comprises a carboxylic ester solvent besides a conventional carbonate solvent, the melting point and the viscosity of the whole electrolyte system are greatly reduced, and the lithium ions can be ensured to migrate between a positive electrode and a negative electrode when the battery is at a low temperature (-40 ℃).
Description
Technical Field
The invention relates to the field of lithium ion batteries, in particular to a low-temperature-resistant non-aqueous electrolyte of a lithium ion battery and the lithium ion battery.
Background
The lithium ion battery has the advantages of high working voltage, wide working temperature range, environmental friendliness and the like, and is widely applied to the fields of 3C digital products, electric automobiles and the like. In the 3C digital field, such as smart phones, mobile power sources, and the like, lithium ion batteries are developing to be lighter and thinner, and meanwhile, in order to meet some special use environments, such as military industry or extreme low temperature environments, the batteries are required to be used in a low temperature environment of-40 ℃ or lower, which requires that the batteries have higher low temperature charge and discharge resistance or low temperature discharge performance.
The current commercial lithium ion battery non-aqueous electrolyte is prepared by mixing ethylene carbonate, propylene carbonate, ethyl methyl carbonate and carboxylate according to the use requirement under the extremely low temperature environment, wherein the addition amount of the carboxylate is increased, the low-temperature discharge performance of the battery is improved, but the room-temperature cycle performance of the battery is deteriorated.
CN200810030976.81 discloses a low-temperature electrolyte of a lithium ion battery, which is added into the electrolyte of the lithium ion battery by using methyl formate, gamma-butyrolactone and other carboxylic esters as additives; in 2012, ethyl acetate is used as one of four solvents of a low-temperature electrolyte for a lithium ion battery prepared by Zhonghang lithium battery limited. Although the low-temperature performance of the battery can be greatly improved in the prior art, the invention does not have a good low-temperature film-forming additive, so that the later-stage cycle water-skipping of the battery can be caused, and the problems of poor or reduced low-temperature discharge, low-temperature cycle and room-temperature cycle performance of the battery can not be effectively solved. In order to solve the above problems, the search and development of new low temperature resistant additives and new solvent combinations have been diligent.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a low-temperature-resistant lithium ion battery non-aqueous electrolyte and a lithium ion battery.
In order to achieve the purpose, the non-aqueous electrolyte solution of the low-temperature resistant lithium ion battery comprises electrolyte lithium salt, a non-aqueous organic solvent and a film-forming additive, wherein the film-forming additive comprises a conventional film-forming additive and a low-temperature resistant additive with a structure shown in a formula (I):
further, the mass of the low-temperature resistant additive accounts for 0.3-1.0% of the total mass of the electrolyte.
Further, the conventional film forming additive is one or more of Vinylene Carbonate (VC), 1, 3-Propylene Sultone (PST), 1, 3-Propane Sultone (PS), fluoroethylene carbonate (FEC), vinyl sulfate (DTD), 4-methyl ethylene sulfate, 4-ethyl ethylene sulfate, 4-propyl ethylene sulfate, propylene sulfate, tris (trimethylsilane) borate (TMSB), and tris (trimethylsilane) phosphate (TMSP).
Preferably, when the conventional film forming additive comprises Vinylene Carbonate (VC), fluoroethylene carbonate (FEC), 1, 3-Propane Sultone (PS), vinyl sulfate (DTD), tris (trimethylsilane) borate (TMSB) and tris (trimethylsilane) phosphate (TMSP), the addition amounts of Vinylene Carbonate (VC), 1, 3-Propane Sultone (PS), fluoroethylene carbonate (FEC), vinyl sulfate (DTD), tris (trimethylsilane) borate (TMSB) and tris (trimethylsilane) phosphate (TMSP) respectively account for 0.1% to 0.3%, 0.8% to 1.2%, 1.5% to 2.5%, 0.4% to 0.6% of the total mass of the electrolyte.
More preferably, the conventional film forming additive comprises vinylene carbonate accounting for 0.2% of the total mass of the electrolyte, 1, 3-propane sultone accounting for 1.0% of the total mass of the electrolyte and fluoroethylene carbonate accounting for 2.0% of the total mass of the electrolyte, and further preferably, the conventional film forming additive further comprises vinyl sulfate accounting for 2.0% of the total mass of the electrolyte, or tris (trimethylsilane) borate accounting for 0.5% of the total mass of the electrolyte, or tris (trimethylsilane) phosphate accounting for 0.5% of the total mass of the electrolyte.
Preferably, the electrolyte lithium salt is lithium hexafluorophosphate; more preferably, the electrolyte lithium salt accounts for 10.0-13.0% of the total mass of the electrolyte.
Further, the electrolyte lithium salt is lithium hexafluorophosphate (LiPF)6) Lithium bis (fluorosulfonyl) imide, lithium difluorophosphate (LiPO)2F2) Lithium tetrafluoroborate (LiBF)4) And lithium difluoro (oxalato) borate (LiDFOB), wherein the addition amount of the electrolyte lithium salt accounts for 12.5-13.5% of the total mass of the electrolyte; preferably, the addition amount of lithium bis (fluorosulfonyl) imide, lithium difluorophosphate, lithium tetrafluoroborate or lithium difluorooxalato borate in the electrolyte lithium salt accounts for 0.5-0.8% of the total mass of the electrolyte; more preferably, the electrolyte lithium salt is hexafluorophosphorus hexafluoride accounting for 12.5% of the total mass of the electrolyteLithium carbonate and lithium difluorophosphate accounting for 0.8 percent of the total mass of the electrolyte, or/and lithium difluorooxalato borate accounting for 0.5 percent of the total mass of the electrolyte/lithium tetrafluoroborate accounting for 0.3 percent of the total mass of the electrolyte.
Further, the non-aqueous organic solvent comprises a cyclic carbonate, a chain carbonate and a carboxylate ester solvent; preferably, the cyclic carbonate is selected from one or more of Ethylene Carbonate (EC) and Propylene Carbonate (PC); the chain ester is selected from one or more of dimethyl carbonate (DMC) and Ethyl Methyl Carbonate (EMC), and the carboxylic ester solvent has a structure shown in a formula (II):
wherein R is1And R2Respectively represents an alkyl group or a fluoroalkyl group, the number of the alkyl group carbon is not more than 4, the carbon chain is a straight chain or has a branch chain, and the fluorine atom in the fluoroalkyl group may be at the terminal or at the branch.
Preferably, the carboxylic ester solvent is one or more of methyl formate, ethyl formate, propyl formate, butyl formate, Methyl Acetate (MA), Ethyl Acetate (EA), Propyl Acetate (PA), butyl acetate, methyl propionate, Ethyl Propionate (EP), Propyl Propionate (PP), butyl propionate, methyl butyrate (EB), Ethyl Butyrate (EB), propyl butyrate, and butyl butyrate.
Preferably, the Ethylene Carbonate (EC) accounts for 15.0% to 30.0%, for example 20%, of the total mass of the non-aqueous organic solvent; the Propylene Carbonate (PC) accounts for 5.0-15.0 percent of the total mass of the nonaqueous organic solvent, such as 10 percent; the Ethyl Methyl Carbonate (EMC) accounts for 5.0-15.0% of the total mass of the non-aqueous organic solvent, such as 10%; the addition amount of the carboxylic ester solvent accounts for 50.0-80.0% of the mass of the electrolyte; more preferably, the mass ratio of the ethylene carbonate, the propylene carbonate, the ethyl methyl carbonate and the carboxylic ester solvent is 2: 1: 1: 6.
the invention also provides a low-temperature-resistant lithium ion battery, which comprises the low-temperature-resistant lithium ion battery non-aqueous electrolyte.
Compared with the prior art, the invention has the advantages that:
1. the conventional film forming additive (such as FEC, DTD and the like) is reduced on the surface of the negative electrode material in preference to the solvent to form an excellent interface protective film, so that the reaction of the electrode material and the electrolyte is reduced; the formed SEI film has low impedance, and is beneficial to the insertion and extraction of lithium ions in the anode and cathode materials;
2. the invention adds the carboxylic ester solvent on the basis of the conventional carbonate solvent, so that the melting point and the viscosity of the whole electrolyte system are greatly reduced. When the battery is at low temperature (-40 ℃), the lithium ions can be ensured to migrate between the positive electrode and the negative electrode;
3. the electrolyte is prepared by reasonably proportioning two or more electrolyte lithium salts such as lithium hexafluorophosphate, lithium difluorophosphate, lithium difluorooxalato borate and lithium tetrafluoroborate, and the like, so that the defect that the singly used lithium hexafluorophosphate is lack of temperature stability is overcome, and the electrolyte has better low-temperature performance and rate capability.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention. It is to be understood that the following description is only illustrative of the present invention and is not to be construed as limiting the present invention.
As used herein, the terms "comprises," "comprising," "includes," "including," "contains," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the number clearly indicates the singular.
Further, the technical features of the embodiments of the present invention may be combined with each other as long as they do not conflict with each other.
Example 1
Preparing an electrolyte: in a glove box filled with argon, ethylene carbonate, propylene carbonate, ethyl methyl carbonate and ethyl propionate are mixed according to the mass ratio of EC: PC: EMC: EP 20: 10: 10: 60, and then 12.5 wt% of lithium hexafluorophosphate was slowly added to the mixed solution, and finally 0.2 wt% of Vinylene Carbonate (VC) based on the total weight of the electrolyte, 1.0 wt% of 1, 3-Propane Sultone (PS) based on the total weight of the electrolyte, 2.0 wt% of fluoroethylene carbonate (FEC) based on the total weight of the electrolyte, and 0.8 wt% of lithium difluorophosphate (LiPO) based on the total weight of the electrolyte2F2) And uniformly stirring to obtain the lithium ion battery electrolyte of the embodiment 1.
The prepared lithium ion battery electrolyte is injected into a fully dried artificial graphite material/lithium cobaltate (4.2V) battery, and the battery is subjected to conventional capacity grading after standing at 45 ℃, high-temperature clamp formation and secondary sealing.
Examples 2 to 13 and comparative examples 1 to 6
As shown in Table 1, examples 2 to 13 and comparative examples 1 to 6 were the same as example 1 except that the components of the electrolyte were added in the proportions shown in Table 1.
TABLE 1 compositions and proportions of the components of the electrolytes of examples 1-13 and comparative examples 1-6
Electrolyte Performance testing
1) And (3) testing the normal-temperature cycle performance of the battery: at 25 ℃, the battery after capacity grading is charged to 4.2V at constant current and constant voltage of 0.5C, the current is cut off at 0.05C, then the battery is discharged to 3.0V at constant current of 0.5C, and the capacity retention rate of the 500 th cycle is calculated after the battery is charged/discharged for 500 cycles according to the cycle, and the calculation formula is as follows:
the 500 th cycle capacity retention ratio (%) (500 th cycle discharge capacity/first cycle discharge capacity) × 100%;
2) and (3) testing the thickness expansion and capacity residual rate at constant temperature of 45 ℃: firstly, the battery is placed at normal temperature and is circularly charged and discharged for 1 time (4.2V-3.0V) at 0.5C, and the discharge capacity C before the battery is stored is recorded0Then charging the battery to 4.2V full-voltage state with constant current and constant voltage, and using vernier caliper to test the thickness d of the battery before high-temperature storage1(the two diagonals of the battery are respectively connected through a straight line, and the intersection point of the two diagonals is a battery thickness test point), then the battery is placed in a thermostat with the temperature of 45 ℃ for storage for 7 days, the battery is taken out after the storage is finished, and the thermal thickness d of the stored battery is tested2Calculating the thickness expansion rate of the battery after the battery is stored for 7 days at the constant temperature of 45 ℃; after the battery is cooled for 24 hours at room temperature, the battery is discharged to 3.0V at constant current of 0.5C again, and the discharge capacity C after the battery is stored is recorded1And calculating the capacity residual rate of the battery after being stored for 7 days at the constant temperature of 45 ℃, wherein the calculation formula is as follows:
thickness expansion rate of battery after 7 days of storage at 45 ═ d2-d1)/d1*100％；
After constant temperature storage for 7 days at 45 ℃, capacity residual rate is C1/C0*100％。
3) Battery-40 ℃ discharge test: firstly, the battery is placed at normal temperature and is circularly charged and discharged for 1 time (4.2V-3.0V) at 0.5C, and the discharge capacity C before the battery is stored is recorded2And then the battery is charged to a full state of 4.2V at constant current and constant voltage. Placing the battery in a low-temperature box, standing for 4h when the temperature of the low-temperature box is reduced to-40 ℃, discharging the battery to 3.0V at a constant current of 0.5C, and recording the discharge capacity C after the battery is stored3And calculating the constant current discharge ratio at the temperature of minus 40 ℃, wherein the calculation formula is as follows:
constant current discharge ratio at-40 ═ C3/C2*100％。
TABLE 2 Electrical Properties of lithium ion batteries in examples 1-13 and comparative examples 1-6
As can be seen from the comparison of the electrical property test results of example 1 and example 9 in table 2: the low-temperature film-forming additive can obviously improve the low-temperature-40 ℃ discharge performance and the room-temperature cycle performance of the battery, and can be presumed to form a layer of uniform and compact protective film on the surface of the negative graphite material, wherein the SEI film has lower alternating current impedance and can improve the migration rate of lithium ions.
As can be seen from a comparison of the results of the electrical property tests for examples 7-9 in Table 2: the addition amount out of the range specified in the present invention will not achieve the effect shown in the present invention. When the addition amount is too much, the low-temperature performance of the lithium ion battery is poor due to large film formation resistance at a negative graphite interface, and negative effects are brought. If the addition amount is too small, the low-temperature performance and the cycle performance of the battery cannot be improved significantly by the additive.
Comparison of the results of the electrical property tests in comparative example 2 and examples 1-5 in Table 2 shows that: after carboxylic ester solvents (ethyl acetate, n-propyl acetate, ethyl propionate and propyl propionate) are added into the electrolyte, the low-temperature-40 ℃ discharge performance of the battery can be obviously improved. The reason is that the carboxylic ester solvent has a lower melting point and a lower viscosity, and can ensure the migration of lithium ions between the positive electrode and the negative electrode when the lithium ion battery is in a low-temperature condition.
Further, the comparison of the electrical property test results of comparative example 3 and examples 1 to 5 shows that: compared with the prior art that the battery performance is improved by using mixed lithium salt or novel conductive lithium salt, on the basis of the additive and the non-aqueous organic solvent, the invention adds the conventional lithium salt LiPF6And also added with LiPO2F2The low-temperature lithium salt additive can obviously improve the low-temperature performance and the cycle performance of the lithium ion battery, and greatly improve the use of the battery under the low-temperature condition.
It will be understood by those skilled in the art that the foregoing is only exemplary of the present invention, and is not intended to limit the invention, which is intended to cover any variations, equivalents, or improvements therein, which fall within the spirit and scope of the invention.
Claims (5)
1. The low-temperature-resistant lithium ion battery nonaqueous electrolyte comprises electrolyte lithium salt, a nonaqueous organic solvent and a film-forming additive, and is characterized in that the film-forming additive comprises a conventional film-forming additive and a low-temperature-resistant additive with a structure shown in a formula (I):
the non-aqueous organic solvent comprises ethylene carbonate, propylene carbonate, ethyl methyl carbonate and a carboxylic ester solvent; the lithium ion battery is an artificial graphite material/lithium cobaltate battery; the addition amount of the low-temperature resistant additive with the structure of the formula (I) accounts for 1.0% of the total mass of the electrolyte;
the electrolyte lithium salt is composed of lithium hexafluorophosphate, lithium difluorophosphate and lithium difluorooxalato borate, the addition amounts of the lithium hexafluorophosphate, the lithium difluorophosphate and the lithium difluorooxalato borate respectively account for 12.5%, 0.8% and 0.5% of the total mass of the electrolyte, and the conventional film-forming additive contains vinylene carbonate, fluoroethylene carbonate and 1, 3-propane sultone, and the addition amounts of the vinylene carbonate, fluoroethylene carbonate and 1, 3-propane sultone respectively account for 0.2%, 1.0% and 2.0% of the total mass of the electrolyte.
2. The nonaqueous electrolyte solution for the low-temperature-resistant lithium ion battery of claim 1, wherein the carboxylate solvent is one or more of methyl formate, ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl propionate, ethyl propionate, propyl propionate, butyl propionate, methyl butyrate, ethyl butyrate, propyl butyrate and butyl butyrate.
3. The nonaqueous electrolyte solution for the low-temperature-resistant lithium ion battery of claim 1, wherein the ethylene carbonate accounts for 15.0-30.0% of the total mass of the nonaqueous organic solvent; the propylene carbonate accounts for 5.0-15.0% of the total mass of the nonaqueous organic solvent; the methyl ethyl carbonate accounts for 5.0-15.0% of the total mass of the nonaqueous organic solvent; the addition amount of the carboxylic ester solvent accounts for 50.0-80.0% of the mass of the electrolyte.
4. The nonaqueous electrolyte solution for the low-temperature-resistant lithium ion battery of claim 3, wherein the mass ratio of the ethylene carbonate, the propylene carbonate, the ethyl methyl carbonate and the carboxylic acid ester solvent is 2: 1: 1: 6.
5. a low-temperature-resistant lithium ion battery, characterized in that the lithium ion battery comprises the low-temperature-resistant lithium ion battery nonaqueous electrolyte according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281522.6A CN109980282B (en) | 2019-04-09 | 2019-04-09 | Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281522.6A CN109980282B (en) | 2019-04-09 | 2019-04-09 | Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109980282A CN109980282A (en) | 2019-07-05 |
| CN109980282B true CN109980282B (en) | 2021-01-15 |
Family
ID=67083707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910281522.6A Active CN109980282B (en) | 2019-04-09 | 2019-04-09 | Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109980282B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3099297B1 (en) * | 2019-07-24 | 2022-08-12 | Accumulateurs Fixes | ELECTROLYTE COMPOSITION FOR ELECTROCHEMICAL ELEMENT COMPRISING A LITHIUM ANODE |
| CN111029655A (en) * | 2019-12-20 | 2020-04-17 | 杉杉新材料（衢州）有限公司 | Lithium ion battery electrolyte and lithium ion battery containing same |
| CN111313090A (en) * | 2020-02-18 | 2020-06-19 | 白银科奥夫化学科技有限公司 | Lithium ion battery electrolyte and lithium ion secondary battery containing same |
| CN111934011B (en) * | 2020-08-14 | 2021-04-27 | 山东天润新能源材料有限公司 | Lithium ion battery electrolyte and lithium ion battery |
| CN114256506A (en) * | 2020-09-21 | 2022-03-29 | 合肥国轩高科动力能源有限公司 | Film forming additive for power type lithium ion battery electrolyte, application and battery |
| CN112289975A (en) * | 2020-10-12 | 2021-01-29 | 常州高态信息科技有限公司 | Low-temperature lithium ion battery |
| CN113594548A (en) * | 2021-08-23 | 2021-11-02 | 珠海冠宇电池股份有限公司 | Electrolyte and lithium ion battery |
| CN116014230A (en) * | 2021-10-21 | 2023-04-25 | 张家港市国泰华荣化工新材料有限公司 | Lithium ion battery electrolyte and lithium ion battery containing same |
| CN114039097B (en) * | 2021-11-29 | 2022-10-28 | 珠海冠宇电池股份有限公司 | Lithium ion battery |
| EP4246647A1 (en) * | 2022-01-06 | 2023-09-20 | Contemporary Amperex Technology Co., Limited | Electrolyte, secondary battery, and electric device |
| CN114566706A (en) * | 2022-01-19 | 2022-05-31 | 湖北亿纬动力有限公司 | Lithium battery electrolyte and lithium battery |
| CN115000631A (en) * | 2022-05-16 | 2022-09-02 | 万向一二三股份公司 | High-power lithium battery with long calendar life and manufacturing method thereof |
| CN116826175B (en) * | 2023-08-28 | 2023-11-21 | 如鲲(江苏)新材料科技有限公司 | Wide-temperature-range non-aqueous electrolyte, lithium ion battery, battery module, battery pack and electricity utilization device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975467A (en) * | 2011-08-12 | 2014-08-06 | 宇部兴产株式会社 | Nonaqueous electrolyte solution and electrochemical element using same |
| CN104157903A (en) * | 2014-08-22 | 2014-11-19 | 华南师范大学 | High-voltage lithium ion battery carbonate-based electrolyte solution and preparation method and application thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5516673B2 (en) * | 2012-08-20 | 2014-06-11 | 宇部興産株式会社 | Benzenesulfonic acid ester, electrolytic solution for lithium secondary battery using the same, and lithium secondary battery using the same |
| WO2014157591A1 (en) * | 2013-03-27 | 2014-10-02 | 三菱化学株式会社 | Nonaqueous electrolyte solution and nonaqueous electrolyte battery using same |
| CN105161753B (en) * | 2014-05-26 | 2017-12-26 | 宁德时代新能源科技股份有限公司 | Lithium ion battery and electrolyte thereof |
| CN104409772B (en) * | 2014-12-04 | 2017-02-22 | 张家港市国泰华荣化工新材料有限公司 | Lithium-ion battery electrolyte and lithium-ion battery |
| CN108091933B (en) * | 2017-12-12 | 2019-11-12 | 石家庄圣泰化工有限公司 | Application of the fluosulfonic acid ester type compound in battery electrolyte |
| CN109473719B (en) * | 2018-10-22 | 2020-10-16 | 杉杉新材料（衢州）有限公司 | Lithium ion battery electrolyte and lithium ion battery containing same |
-
2019
- 2019-04-09 CN CN201910281522.6A patent/CN109980282B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975467A (en) * | 2011-08-12 | 2014-08-06 | 宇部兴产株式会社 | Nonaqueous electrolyte solution and electrochemical element using same |
| CN104157903A (en) * | 2014-08-22 | 2014-11-19 | 华南师范大学 | High-voltage lithium ion battery carbonate-based electrolyte solution and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109980282A (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109980282B (en) | Low-temperature-resistant non-aqueous electrolyte for lithium ion battery and lithium ion battery | |
| CN109888389B (en) | Ternary lithium ion battery non-aqueous electrolyte and high-nickel ternary lithium ion battery containing electrolyte | |
| CN109755635B (en) | Battery electrolyte additive giving consideration to high and low temperature performance, electrolyte and high-nickel ternary lithium ion battery | |
| CN109193029B (en) | High-nickel ternary lithium ion battery non-aqueous electrolyte and high-nickel ternary lithium ion battery containing electrolyte | |
| CN109921092B (en) | Non-aqueous electrolyte of silicon-based negative electrode lithium ion battery and silicon-based negative electrode lithium ion battery containing electrolyte | |
| CN109687021B (en) | High-temperature-resistant non-aqueous electrolyte for lithium ion battery | |
| CN109860709B (en) | Electrolyte for improving low-temperature performance of lithium ion battery and lithium ion battery containing electrolyte | |
| CN109346772B (en) | Lithium ion battery non-aqueous electrolyte and lithium ion battery | |
| CN107681199B (en) | Efficient flame-retardant electrolyte and lithium ion battery containing same | |
| CN108511800B (en) | Ultralow-temperature lithium ion battery electrolyte and lithium ion battery using same | |
| CN109687024B (en) | High-voltage lithium ion non-aqueous electrolyte and lithium ion battery with high and low temperature excellent performances | |
| CN105186032A (en) | High-voltage lithium-ion battery electrolyte and lithium-ion battery using high-voltage lithium-ion battery electrolyte | |
| CN113270643A (en) | Lithium ion battery electrolyte and lithium ion battery containing same | |
| CN111180796B (en) | Non-aqueous electrolyte, preparation method thereof and application thereof in lithium ion battery | |
| CN110957529B (en) | Lithium ion battery electrolyte and lithium ion battery | |
| CN109346768B (en) | Lithium manganate lithium ion battery non-aqueous electrolyte | |
| CN111834665B (en) | High-nickel ternary lithium ion battery electrolyte and lithium ion battery | |
| CN111129598A (en) | High-voltage lithium ion battery non-aqueous electrolyte and lithium ion battery thereof | |
| CN111244545B (en) | Overcharge-preventing electrolyte and lithium ion battery using same | |
| CN111106387B (en) | Electrolyte and lithium ion battery | |
| CN109786830B (en) | Electrolyte containing silicon solvent and thiophene additive and lithium ion battery using electrolyte | |
| CN112290089A (en) | Lithium ion battery non-aqueous electrolyte solution and lithium ion battery | |
| CN112349959A (en) | High-nickel lithium ion battery non-aqueous electrolyte and lithium ion battery | |
| CN112186244B (en) | Flame-retardant lithium ion battery electrolyte and lithium ion battery containing same | |
| CN111342134B (en) | Wide-temperature-range lithium ion battery non-aqueous electrolyte and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.62 Huayin North Road, Kecheng District, Quzhou City, Zhejiang Province Patentee after: New Asia Shanshan New Material Technology (Quzhou) Co.,Ltd. Address before: No.62 Huayin North Road, Kecheng District, Quzhou City, Zhejiang Province Patentee before: SHANSHAN ADVANCED MATERIALS (QUZHOU) Co.,Ltd. |