CN108565530A - A kind of lithium-air battery and preparation method thereof - Google Patents
A kind of lithium-air battery and preparation method thereof Download PDFInfo
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- CN108565530A CN108565530A CN201810334591.4A CN201810334591A CN108565530A CN 108565530 A CN108565530 A CN 108565530A CN 201810334591 A CN201810334591 A CN 201810334591A CN 108565530 A CN108565530 A CN 108565530A
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- lithium
- air battery
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- anode
- cathode
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/08—Hybrid cells; Manufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0433—Molding
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of lithium-air batteries and preparation method thereof of high circulation performance.The battery is made of anode, cathode and electrolyte, and anode is lithium salts, and surface has coated carbon nanotubes, and cathode uses nano molybdenum disulfide, electrolyte to use the mixture of 1 methyl 3 methyl imidazolium tetrafluoroborate and dimethylacetylamide.The battery not only has high thermal stability, also higher cycle life and energy density.
Description
Technical field
The invention belongs to secondary ion battery technology fields, and in particular to a kind of lithium-air battery and preparation method thereof.
Background technology
Currently, lithium rechargeable battery has been widely used in people’s lives, is such as applied to laptop, mobile phone
Etc. in articles for daily use and in various military equipments.However, for electric vehicle and rotor type aircraft, lithium-ion electric
The energy density in pond is relatively low, directly affects the development of the products such as electric vehicle.
Lithium-air battery is a kind of novel chemical cell, and theoretical energy density is 5-10 times of lithium ion battery,
Cause the broad interest of countries in the world scientist.And lithium-air battery is of low cost, with wide application potential.
105375039 A of Chinese invention patent CN provide a kind of air electrode for lithium air battery, which includes collection
Fluid, In-situ reaction are carried on the catalyst on the collector.The invention also provides the preparation of air electrode for lithium air battery
Method and its lithium-air battery containing the air electrode.
104681895 A of Chinese invention patent CN provide the anode structure body of lithium-air battery and lithium-air battery.The lithium
Air cell can improve the redox ability of lithium air battery positive electrode and prevent hydrogen compared with previous air cell.
Lithium-air battery (1,1A) has cathode (4,11), solid electrolyte (13), electrolyte (7), positive (3,8).In addition,
The surface area of positive (3,8) is more than the surface area of cathode (4,11).
104282918 A of Chinese invention patent CN provide lithium-air battery cathode, lithium-air battery and prepare
The method of lithium-air battery electrode, the cathode include the carbon material of modification, which is characterized in that the carbon material table of the modification
Bread contains at least one hetero atom or heteroatom group.
The technical solution of foregoing invention is carried out to the performance of lithium-air battery, still, lithium-air battery most critical
Cycle performance does not relate in above technical scheme.Currently, the stability of lithium-air battery, cycle performance are very poor, still not
It can be practical.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, it is empty that the present invention provides a kind of lithium of high circulation performance
Pneumoelectric pond and preparation method thereof.
The composition and preparation method of battery are as follows：
（1）Prepare anode：In lithium salts Li2CoO3Surface prepares nano-sized carbon tube layer.The preparation method of nano-sized carbon tube layer includes but not
It is limited to chemical vapour deposition technique, vapour deposition method, sol-gal process.
（2）Prepare cathode：Using nano molybdenum disulfide thin slice.Preferably, the lamella size of nano molybdenum disulfide 15 ~
In 50 nanometer ranges.
（3）Prepare electrolyte：Using the mixture of 1- methyl -3- methyl imidazolium tetrafluoroborates and dimethylacetylamide.
Preferably, the ratio of the two is 3：1~5：1.
（4）By anode, cathode, electrolyte encapsulation, it is assembled into lithium-air battery.
Beneficial effect：
Li2CoO3In the anode that/carbon nanotubes is constituted, nano-sized carbon tube layer only allows lithium cation to pass through, and has obstructed air, makes sun
Pole from air influence, such as with N2、CO2Or water vapour generates by-product, influences battery performance.Electrolyte is molten using ion
Liquid can also avoid the infiltration of water.This way it is possible to avoid the disadvantage that battery is unstable, greatly prolongs the cycle of lithium-air battery
Service life, it is horizontal to reach 2000 times or more commercial Applications.Since the energy density of lithium-air battery is higher than current lithium battery by 4 ~ 5
Times, therefore the weight of battery greatly reduces, and can be used for the fields such as electric vehicle, aircraft.
Specific implementation mode
The present invention is further described with reference to embodiment.
Embodiment 1
（1）By Li2CoO35 centimetres of compacting growth, 2 centimetres wide, high 2 centimetres of anode, then use the side of chemical vapor deposition
The nano-sized carbon tube layer of 180nm thickness is prepared on its surface in method；
（2）It is the molybdenum disulfide nano sheeting of 50nm as cathode to use lamellar spacing；
（3）Use ratio for 5：1 1- methyl -3- methyl imidazolium tetrafluoroborates and the mixture of dimethylacetylamide are as electricity
Xie Zhi.
By anode, cathode, electrolyte encapsulation, then lithium-air battery is constituted.
Battery testing：Using Land electrochemical test systems, test the battery charge and discharge platform be 4.25V, cycle
After 2000 times, the energy density of capacitance loss 13%, battery is 9.7kWh/Kg.
Embodiment 2
（1）By Li2CoO35 centimetres of compacting growth, 2 centimetres wide, high 2 centimetres of anode, then use the side of chemical vapor deposition
The nano-sized carbon tube layer of 120nm thickness is prepared on its surface in method；
（2）It is the molybdenum disulfide sheeting of 20nm as cathode to use lamellar spacing；
（3）Use ratio for 3：1 1- methyl -3- methyl imidazolium tetrafluoroborates and the mixture of dimethylacetylamide are as electricity
Xie Zhi.
By anode, cathode, electrolyte encapsulation, then lithium-air battery is constituted.
Battery testing：Using Land electrochemical test systems, test the battery charge and discharge platform be 4.13V, cycle
After 2000 times, the energy density of capacitance loss 22%, battery is 10.2kWh/Kg.
Embodiment 3
（1）By Li2CoO35 centimetres of compacting growth, 2 centimetres wide, high 2 centimetres of anode, then use the side of chemical vapor deposition
The nano-sized carbon tube layer of 90nm thickness is prepared on its surface in method；
（2）It is the molybdenum disulfide sheeting of 15nm as cathode to use lamellar spacing；
（3）Use ratio for 4：1 1- methyl -3- methyl imidazolium tetrafluoroborates and the mixture of dimethylacetylamide are as electricity
Xie Zhi.
By anode, cathode, electrolyte encapsulation, then lithium-air battery is constituted.
Battery testing：Using Land electrochemical test systems, test the battery charge and discharge platform be 3.95V, cycle
After 2000 times, the energy density of capacitance loss 18%, battery is 9.5kWh/Kg.
As can be seen from the above embodiments, lithium-air battery stable charge/discharge of the invention, good cycle, have reached
Commercial Application is horizontal.
The above is only some examples of embodiment of the present invention, it should be pointed out that：For the technology people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of lithium-air battery, it is characterised in that：The battery contains anode, cathode and electrolyte, and anode surface surface is wrapped
Carbon nanotubes is covered.
2. lithium-air battery according to claim 1, it is characterised in that：The galvanic anode is lithium salts, cathode uses nanometer
Molybdenum disulfide, electrolyte use the mixture of 1- methyl -3- methyl imidazolium tetrafluoroborates and dimethylacetylamide.
3. lithium-air battery according to claim 1, it is characterised in that：The preparation method of the battery is as follows：
（1）Prepare anode：In lithium salts Li2CoO3Surface prepares nano-sized carbon tube layer.
（2）Prepare cathode：Using nano molybdenum disulfide thin slice.
（3）Prepare electrolyte：Using the mixture of 1- methyl -3- methyl imidazolium tetrafluoroborates and dimethylacetylamide.As
It is preferred that the ratio of the two is 3：1~5：1.
（4）By anode, cathode, electrolyte encapsulation, it is assembled into lithium-air battery.
4. the preparation method of lithium-air battery according to claim 3, it is characterised in that：The preparation method of nano-sized carbon tube layer
Including but not limited to chemical vapour deposition technique, vapour deposition method, sol-gal process.
5. the preparation method of lithium-air battery according to claim 3, it is characterised in that：The lamella of nano molybdenum disulfide is big
It is small in 15 ~ 50 nanometer ranges.
6. the preparation method of lithium-air battery according to claim 3, it is characterised in that：1- methyl -3- methylimidazoles four
The ratio of borofluoride and dimethylacetylamide is 3：1~5：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334591.4A CN108565530A (en) | 2018-04-14 | 2018-04-14 | A kind of lithium-air battery and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334591.4A CN108565530A (en) | 2018-04-14 | 2018-04-14 | A kind of lithium-air battery and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108565530A true CN108565530A (en) | 2018-09-21 |
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| CN201810334591.4A Pending CN108565530A (en) | 2018-04-14 | 2018-04-14 | A kind of lithium-air battery and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393290A (en) * | 2014-10-29 | 2015-03-04 | 北京科技大学 | Aluminum-ion battery using MoS2 as positive electrode material and preparation method of battery |
| CN105655632A (en) * | 2016-03-17 | 2016-06-08 | 湖北知本信息科技有限公司 | Method for preparing lithium-air battery and prepared lithium-air battery |
| CN107871877A (en) * | 2016-09-27 | 2018-04-03 | 三星电子株式会社 | O for cathode of air battery and lithium-air battery including it and the method for preparing positive pole |
-
2018
- 2018-04-14 CN CN201810334591.4A patent/CN108565530A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393290A (en) * | 2014-10-29 | 2015-03-04 | 北京科技大学 | Aluminum-ion battery using MoS2 as positive electrode material and preparation method of battery |
| CN105655632A (en) * | 2016-03-17 | 2016-06-08 | 湖北知本信息科技有限公司 | Method for preparing lithium-air battery and prepared lithium-air battery |
| CN107871877A (en) * | 2016-09-27 | 2018-04-03 | 三星电子株式会社 | O for cathode of air battery and lithium-air battery including it and the method for preparing positive pole |
Non-Patent Citations (1)
| Title |
|---|
| MOHAMMAD ASADI,ET AL.: "A lithium-oxygen battery with a long cycle life in an air-like atmosphere", 《NATURE》 * |
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Application publication date: 20180921 |