CN111710908A - Direct-current power supply lithium ion battery and preparation method thereof - Google Patents
Direct-current power supply lithium ion battery and preparation method thereof Download PDFInfo
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- CN111710908A CN111710908A CN202010575028.3A CN202010575028A CN111710908A CN 111710908 A CN111710908 A CN 111710908A CN 202010575028 A CN202010575028 A CN 202010575028A CN 111710908 A CN111710908 A CN 111710908A
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a direct current power supply lithium ion battery and a preparation method thereof, wherein the preparation method comprises the following steps: respectively preparing a positive plate and a negative plate, and laminating the positive plate and the negative plate according to a set positive-negative capacity N/P ratio to obtain a battery core; obtaining a blending electrolyte; injecting the blending electrolyte into the battery core to obtain a direct-current power supply lithium ion battery; the blending electrolyte is prepared by adding an additive into a lithium salt electrolyte base solution and uniformly mixing. The battery prepared by the scheme can keep the electrochemical performance of the lithium ion battery stable, and meanwhile, the electrolyte system can realize the complete flame-retardant effect, so that the safety performance of the lithium ion battery is greatly improved.
Description
Technical Field
The invention belongs to the technical field of lithium ion batteries, and particularly relates to a direct-current power supply lithium ion battery and a preparation method thereof.
Background
The direct current power supply system is an important component of an intelligent substation and is a power supply of secondary systems such as a relay control protection device, an automation device, a high-voltage circuit breaker switching mechanism, communication, metering, emergency lighting and the like. The direct current power supply system mainly comprises a storage battery pack and a rectifying device, under a normal condition, a direct current power supply is provided by station alternating current through the rectifying device, and when sudden alternating current is lost, the station direct current system is powered by the storage battery pack. At the moment, the storage battery becomes the only direct current power supply, and normal operation of equipment such as relay protection, automatic devices and high-voltage circuit breakers can be guaranteed. In large units, ultrahigh voltage modern large power engineering and modern urban network construction engineering, the quality of a direct current system has an important influence on the safe operation of a power grid, so that a storage battery is considered to be one of the most core components in a direct current system of a transformer substation, and the safety of the storage battery is an important guarantee for the safe and stable operation of the transformer substation system.
The conventional direct-current power supply system cannot realize the complete flame-retardant effect, and the safety performance needs to be improved.
Disclosure of Invention
The invention aims to provide a direct-current power supply lithium ion battery and a preparation method thereof, and the prepared direct-current power supply lithium ion battery can realize the complete flame retardant effect, so that the safety performance of the lithium ion battery is greatly improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a direct current power supply lithium ion battery comprises the following steps:
respectively preparing a positive plate and a negative plate, and laminating the positive plate and the negative plate according to a set positive-negative capacity N/P ratio to obtain a battery core;
obtaining a blending electrolyte;
injecting the blending electrolyte into the battery core to obtain a direct-current power supply lithium ion battery;
the blending electrolyte is prepared by adding an additive into a lithium salt electrolyte base solution and uniformly mixing.
Further, the preparation of the positive plate comprises the following steps: uniformly mixing the positive electrode material, the conductive graphite and the binder, adding the solvent, uniformly coating the mixture on an aluminum foil after uniformly stirring, rolling, drying in vacuum and cutting into the positive electrode plate.
Further, the preparation of the negative plate comprises the following steps: uniformly mixing a negative electrode material and conductive carbon black, adding a binder glue solution after uniformly stirring, adjusting the solid content to 40-60% by using deionized water after uniformly stirring, vacuumizing and standing to obtain slurry, uniformly coating the prepared slurry on copper foil, then rolling, drying in vacuum and cutting into a negative electrode sheet.
Furthermore, the solvent used in the preparation of the positive plate is N-methyl-2-pyrrolidone.
Further, the lithium salt electrolyte base solution is prepared by lithium salt, ethylene carbonate EC and dimethyl carbonate DEC, wherein the mass ratio of EC to DEC is 1: 1.
Further, the anode material is a ternary material, a lithium iron phosphate material or a spinel manganese material.
Further, the negative electrode material is artificial graphite, natural graphite or mesocarbon microbeads.
Further, the lithium salt in the base solution of the lithium salt electrolyte is one or more of lithium hexafluorophosphate, lithium perchlorate, lithium tetrafluoroborate, lithium bis (oxalato) borate and lithium bis (oxalato) borate, and the concentration of the lithium salt in the base solution of the lithium salt electrolyte is 0.8-1.3M.
Further, the additive is a mixed additive of a first additive and a second additive; the first additive is an organic phosphorus additive; the second additive is biphenyl, a derivative of benzene or a heterocyclic compound.
Further, the first additive is one or more of triphenyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, tri (beta-chloroethyl) phosphate, tri (2, 3-dichloropropyl) phosphate, tributyl phosphate, trimethyl phosphate and dimethyl methyl phosphate;
the second additive is one or a plurality of compounds of biphenyl, cyclohexyl benzene, fluorinated biphenyl, furan and pyrrole thiophene.
Further, the first additive accounts for 0-80% of the blending electrolyte by mass percent; the second additive accounts for 0-1% of the blending electrolyte by mass percent.
Further, the first additive accounts for 35-80% of the blended electrolyte by mass; the second additive accounts for 0.1-1% of the blending electrolyte by mass percent.
Furthermore, the N/P ratio of the positive and negative electrode capacities is 1.0-1.5.
Further, the mixed electrolyte is prepared by mixing in an argon atmosphere glove box.
Further, the mass ratio of the positive electrode material, the conductive graphite and the binder is 90:5: 5; the mass ratio of the negative electrode material, the conductive carbon black and the adhesive liquid is 97:2: 1.
The direct-current power supply lithium ion battery prepared by the preparation method of the direct-current power supply lithium ion battery.
Compared with the prior art, the invention has the following beneficial effects:
1) the lithium ion battery provided by the invention has the advantages of simple preparation process and low cost;
2) the blending electrolyte has simple preparation method, is suitable for industrial application, is particularly suitable for the field of direct current power supplies and standby power supplies, and can keep the electrochemical performance of the lithium ion battery stable and realize the complete flame-retardant effect of an electrolyte system, so that the safety performance of the lithium ion battery is greatly improved;
3) the innovation of the invention is that a dedicated high-safety battery and a matched electrolyte system thereof, which are specially used in the fields of a direct-current power supply system, a standby power supply and the like, are developed first, so that the safe and reliable operation of the battery under the scene is met.
The invention takes the development of high-safety electrolyte as a breakthrough, particularly the development of the electrolyte with high-safety flame-retardant property, and can inhibit or effectively relieve the thermal runaway mode of the battery.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a graph of additive addition ratio versus self-extinguishing time value.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
Embodiment 1, the preparation method of a direct current power lithium ion battery of the present invention includes the following steps:
1) uniformly mixing a positive electrode material NCM, conductive graphite and a PVDF binder according to the mass fraction of 90:5:5, adding a certain amount of N-methyl-2-pyrrolidone solvent, uniformly coating on an aluminum foil, rolling, drying in a vacuum drying oven at 80 ℃ for 12 hours in vacuum, and cutting into positive plates for later use; adding 1 LN-methyl-2-pyrrolidone solvent into powder formed by uniformly mixing each kilogram of positive electrode material NCM, conductive graphite and PVDF binder;
2) according to the mass fraction of 97:2:1, 97 parts of graphite negative electrode material and 2 parts of conductive carbon black are uniformly mixed, stirred for 2 hours, added with 1 part of adhesive glue solution, stirred at low speed for 0.5 hour, adjusted to have a solid content of 45% by deionized water, vacuumized for 0.5 hour, kept stand, poured into a trough of a coating machine, uniformly coated on a copper foil, wound, and placed in a vacuum oven for vacuum storage at 90 ℃ to obtain a negative electrode sheet;
3) using LiPF6Preparing electrolyte base solution by using lithium salt, ethylene carbonate EC and dimethyl carbonate DEC as solvents, wherein the mass ratio of the ethylene carbonate EC to the dimethyl carbonate DEC is 1:1, and the concentration of the lithium salt in the electrolyte base solution is 1M; adding trimethyl phosphate (TMP) and dimethyl methyl phosphonate (DMMP) mixed additive and biphenyl into the electrolyte base solution to prepare a high-safety electrolyte system with miscibility; the mass percentage of the mixed additive of trimethyl phosphate (TMP) and dimethyl methylphosphonate (DMMP) in the high-safety electrolyte system is 35 percent, and the mass percentage of biphenyl in the high-safety electrolyte system is 0.25 percent;
4) designing the N/P ratio of the positive and negative electrode capacities to be 1.02, and performing cell lamination on the prepared positive and negative electrode plates according to the proportion;
5) and injecting the high-safety electrolyte system configured in the step 3) into the battery cell in the step 4), horizontally placing the battery cell after injection for 24 hours, and then forming and grading to obtain the packaged direct-current power supply lithium ion battery.
Embodiment 2, the preparation method of a direct current power lithium ion battery of the present invention includes the following steps:
1) uniformly mixing lithium iron phosphate, artificial graphite and PVDF binder according to the mass fraction of 90:5:5, adding a certain amount of N-methyl-2-pyrrolidone solvent, uniformly coating on an aluminum foil, rolling, vacuum-drying in a vacuum drying oven at 80 ℃ for 12 hours, and cutting into positive plates for later use; adding 1.5 LN-methyl-2-pyrrolidone solvent into powder formed by uniformly mixing each kilogram of lithium iron phosphate, artificial graphite and PVDF binder;
2) according to the mass fraction of 97:2:1, 97 parts of graphite negative electrode material and 2 parts of conductive carbon black are uniformly mixed, stirred for 2 hours, added with 1 part of adhesive glue solution, stirred at low speed for 0.5 hour, adjusted to have a solid content of 40% by deionized water, vacuumized for 0.5 hour, kept stand, poured into a trough of a coating machine, uniformly coated on a copper foil, rolled, and placed in a vacuum oven for vacuum preservation at 90 ℃ to obtain a negative electrode sheet;
3) preparing electrolyte base solution by using 0.8M lithium tetrafluoroborate, a solvent ethylene carbonate EC and a solvent dimethyl carbonate DEC, wherein the mass ratio of the solvent Ethylene Carbonate (EC) to the solvent dimethyl carbonate (DEC) is 1: 1; adding trimethyl phosphate (TMP) and dimethyl methyl phosphonate (DMMP) mixed additive and biphenyl into the electrolyte base solution to prepare a high-safety electrolyte system with miscibility; the mass percentage of the mixed additive of trimethyl phosphate (TMP) and dimethyl methylphosphonate (DMMP) in the high-safety electrolyte system is 55 percent, and the mass percentage of the cyclohexylbenzene in the high-safety electrolyte system is 0.1 percent;
4) designing the N/P ratio of the positive and negative electrode capacities to be 1, and performing cell lamination on the prepared positive and negative electrode plates according to the proportion;
5) and injecting the high-safety electrolyte system configured in the step 3) into the battery cell in the step 4), horizontally placing the battery cell after injection for 24 hours, and then forming and grading to obtain the packaged direct-current power supply lithium ion battery.
Embodiment 3, the preparation method of a direct current power lithium ion battery of the present invention includes the following steps:
1) uniformly mixing a spinel manganese material LiMnO, natural graphite and a PVDF binder according to the mass fraction of 90:5:5, adding a quantitative N-methyl-2-pyrrolidone solvent, uniformly coating the mixture on an aluminum foil, rolling, drying in a vacuum drying oven at 80 ℃ for 12 hours in vacuum, and cutting into positive plates for later use; adding 1 LN-methyl-2-pyrrolidone solvent into powder formed by uniformly mixing per kilogram of spinel manganese material LiMnO, natural graphite and PVDF binder;
2) according to the mass fraction of 97:2:1, 97 parts of graphite negative electrode material and 2 parts of conductive carbon black are uniformly mixed, stirred for 2 hours, added with 1 part of adhesive glue solution, stirred at a low speed for 0.5 hour, adjusted to 60 percent of solid content by deionized water, vacuumized for 0.5 hour, kept stand, poured into a trough of a coating machine, uniformly coated on a copper foil, rolled, and placed in a vacuum oven for vacuum preservation at 90 ℃ to obtain a negative electrode sheet;
3) preparing electrolyte base solution by using 1.3M lithium perchlorate, a solvent ethylene carbonate EC and a solvent DEC, wherein the mass ratio of the solvent Ethylene Carbonate (EC) to the solvent DEC is 1: 1; adding trimethyl phosphate (TMP) and dimethyl methyl phosphonate (DMMP) mixed additive and biphenyl into the electrolyte base solution to prepare a high-safety electrolyte system with miscibility; the mass percentage of the mixed additive of trimethyl phosphate (TMP) and dimethyl methylphosphonate (DMMP) in the high-safety electrolyte system is 35 percent, and the mass percentage of the cyclohexylbenzene in the high-safety electrolyte system is 1 percent;
4) designing the N/P ratio of the positive and negative electrode capacities to be 1.2, and performing cell lamination on the prepared positive and negative electrode plates according to the proportion;
5) and injecting the high-safety electrolyte system configured in the step 3) into the battery cell in the step 4), horizontally placing the battery cell after injection for 24 hours, and then forming and grading to obtain the packaged direct-current power supply lithium ion battery.
Embodiment 4, the preparation method of a direct current power lithium ion battery of the present invention includes the following steps:
1) uniformly mixing a positive electrode material NCM, conductive graphite and a PVDF binder according to the mass fraction of 90:5:5, adding a certain amount of N-methyl-2-pyrrolidone solvent, uniformly coating on an aluminum foil, rolling, drying in a vacuum drying oven at 80 ℃ for 12 hours in vacuum, and cutting into positive plates for later use; adding 1.5 LN-methyl-2-pyrrolidone solvent into powder formed by uniformly mixing each kilogram of positive electrode material NCM, conductive graphite and PVDF binder;
2) according to the mass fraction of 97:2:1, 97 parts of graphite negative electrode material and 2 parts of conductive carbon black are uniformly mixed, stirred for 2 hours, added with 1 part of adhesive glue solution, stirred at a low speed for 0.5 hour, adjusted to have a solid content of 51% by deionized water, vacuumized for 0.5 hour, kept stand, poured into a trough of a coating machine, uniformly coated on a copper foil, rolled, and placed in a vacuum oven for vacuum storage at 90 ℃ to obtain a negative electrode sheet;
3) with 1.2M LiPF6Preparing electrolyte base solution by using lithium salt, a solvent ethylene carbonate EC and a solvent dimethyl carbonate DEC, wherein the mass ratio of the solvent Ethylene Carbonate (EC) to the solvent dimethyl carbonate (DEC) is 1: 1; trimethyl phosphate (TMP) and pyrrole thiophene are added into the electrolyte base solution to prepare a high-safety electrolyte system with miscibility; trimethyl phosphate (TMP) accounts for 80% of the high-safety electrolyte system by mass, and pyrrole thiophene accounts for 0.25% of the high-safety electrolyte system by mass;
4) designing the N/P ratio of the positive and negative electrode capacities to be 1.25, and laminating the prepared positive and negative electrode plates in a cell core according to the proportion;
5) and injecting the high-safety electrolyte system configured in the step 3) into the battery cell in the step 4), horizontally placing the battery cell after injection for 24 hours, and then forming and grading to obtain the packaged direct-current power supply lithium ion battery.
Referring to fig. 1, the data in the figure show that as the content of TMP and DMMP is increased, the flame retardancy of the electrolyte is improved, the self-extinguishing time (SET) value is gradually reduced, and when the addition ratio is greater than 35%, the self-extinguishing time is less than 5s, which greatly improves the safety characteristics of the battery.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (10)
1. A preparation method of a direct current power supply lithium ion battery is characterized by comprising the following steps:
respectively preparing a positive plate and a negative plate, and laminating the positive plate and the negative plate according to a set positive-negative capacity N/P ratio to obtain a battery core;
obtaining a blending electrolyte;
injecting the blending electrolyte into the battery core to obtain a direct-current power supply lithium ion battery;
the blending electrolyte is prepared by adding an additive into a lithium salt electrolyte base solution and uniformly mixing.
2. The production method according to claim 1, wherein the producing of the positive electrode sheet includes:
uniformly mixing the positive electrode material, the conductive graphite and the binder, adding the solvent, uniformly coating the mixture on an aluminum foil after uniformly stirring, rolling, drying in vacuum and cutting into the positive electrode plate.
3. The preparation method according to claim 1, wherein preparing the negative electrode sheet comprises:
uniformly mixing a negative electrode material and conductive carbon black, adding a binder glue solution after uniformly stirring, adjusting the solid content to 40-60% by using deionized water after uniformly stirring, vacuumizing and standing to obtain slurry, uniformly coating the prepared slurry on copper foil, then rolling, drying in vacuum and cutting into a negative electrode sheet.
4. The preparation method according to claim 2, wherein the positive electrode material is a ternary material, a lithium iron phosphate material, or a spinel manganese-based material.
5. The preparation method according to claim 3, wherein the negative electrode material is artificial graphite, natural graphite or mesocarbon microbeads.
6. The method according to claim 1, wherein the lithium salt in the base solution of lithium salt electrolyte is one or more of lithium hexafluorophosphate, lithium perchlorate, lithium tetrafluoroborate, lithium bis (oxalato) borate and lithium bis (oxalato) borate, and the concentration of the lithium salt in the base solution of lithium salt electrolyte is 0.8-1.3M;
the additive is a mixed additive of a first additive and a second additive; the first additive is an organic phosphorus additive; the second additive is biphenyl, a derivative of benzene or a heterocyclic compound.
7. The method of claim 6, wherein the first additive is one or more of triphenyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, tris (β -chloroethyl) phosphate, tris (2, 3-dichloropropyl) phosphate, tributyl phosphate, trimethyl phosphate, and dimethyl methyl phosphate;
the second additive is one or a plurality of compounds of biphenyl, cyclohexyl benzene, fluorinated biphenyl, furan and pyrrole thiophene.
8. The preparation method according to claim 6, wherein the first additive accounts for 0-80% of the blended electrolyte by mass; the second additive accounts for 0-1% of the blending electrolyte by mass percent.
9. The method according to claim 1, wherein the ratio of the positive and negative electrode capacities N/P is 1.0 to 1.5.
10. A lithium ion battery for direct current power supply, characterized by being produced by the production method according to any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000971A (en) * | 2006-12-27 | 2007-07-18 | 天津大学 | High safety, high power lithium ion power battery |
| KR100853615B1 (en) * | 2007-04-26 | 2008-08-22 | 성균관대학교산학협력단 | Electrolyte for rechargeable lithium ion battery and rechargeable lithium ion battery comprising the same |
| CN103296310A (en) * | 2013-06-13 | 2013-09-11 | 苏州诺信创新能源有限公司 | Lithium-ion battery electrolyte |
| CN105226325A (en) * | 2015-10-22 | 2016-01-06 | 郑州宇通客车股份有限公司 | A kind of lithium titanate battery electrolyte and lithium titanate battery |
| CN105244184A (en) * | 2015-09-24 | 2016-01-13 | 宁波南车新能源科技有限公司 | Preparation method for hybrid capacitor battery |
| CN105870501A (en) * | 2016-04-12 | 2016-08-17 | 华南师范大学 | High-voltage functional electrolyte and preparation method and application therefor |
| CN109786737A (en) * | 2018-12-28 | 2019-05-21 | 双一力(宁波)电池有限公司 | A kind of lithium ion battery of high safety performance and preparation method thereof |
| CN109950625A (en) * | 2019-04-19 | 2019-06-28 | 湖北诺邦科技股份有限公司 | A kind of anti-overcharge type lithium ion battery flame-retardant electrolyte |
-
2020
- 2020-06-22 CN CN202010575028.3A patent/CN111710908A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000971A (en) * | 2006-12-27 | 2007-07-18 | 天津大学 | High safety, high power lithium ion power battery |
| KR100853615B1 (en) * | 2007-04-26 | 2008-08-22 | 성균관대학교산학협력단 | Electrolyte for rechargeable lithium ion battery and rechargeable lithium ion battery comprising the same |
| CN103296310A (en) * | 2013-06-13 | 2013-09-11 | 苏州诺信创新能源有限公司 | Lithium-ion battery electrolyte |
| CN105244184A (en) * | 2015-09-24 | 2016-01-13 | 宁波南车新能源科技有限公司 | Preparation method for hybrid capacitor battery |
| CN105226325A (en) * | 2015-10-22 | 2016-01-06 | 郑州宇通客车股份有限公司 | A kind of lithium titanate battery electrolyte and lithium titanate battery |
| CN105870501A (en) * | 2016-04-12 | 2016-08-17 | 华南师范大学 | High-voltage functional electrolyte and preparation method and application therefor |
| CN109786737A (en) * | 2018-12-28 | 2019-05-21 | 双一力(宁波)电池有限公司 | A kind of lithium ion battery of high safety performance and preparation method thereof |
| CN109950625A (en) * | 2019-04-19 | 2019-06-28 | 湖北诺邦科技股份有限公司 | A kind of anti-overcharge type lithium ion battery flame-retardant electrolyte |
Non-Patent Citations (1)
| Title |
|---|
| 陈仕玉等: "锂离子电池安全性添加剂", 《化学进展》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20200925 |