CN114975892A - Preparation method of self-supporting liquid alloy electrode - Google Patents
Preparation method of self-supporting liquid alloy electrode Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims abstract description 6
- 238000009736 wetting Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000012298 atmosphere Substances 0.000 claims abstract description 3
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000012621 metal-organic framework Substances 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 1
- 238000001548 drop coating Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000011068 loading method Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 2
- 239000010406 cathode material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 229910021645 metal ion Inorganic materials 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000011734 sodium Substances 0.000 description 7
- 229910003251 Na K Inorganic materials 0.000 description 5
- 210000001787 dendrite Anatomy 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- YSWBFLWKAIRHEI-UHFFFAOYSA-N 4,5-dimethyl-1h-imidazole Chemical compound CC=1N=CNC=1C YSWBFLWKAIRHEI-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 240000009038 Viola odorata Species 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical group [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- ZMVMBTZRIMAUPN-UHFFFAOYSA-H [Na+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Na+].[V+5].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O ZMVMBTZRIMAUPN-UHFFFAOYSA-H 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229960003351 prussian blue Drugs 0.000 description 1
- 239000013225 prussian blue Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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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
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8817—Treatment of supports before application of the catalytic active composition
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
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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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8684—Negative electrodes
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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 preparation method of a self-supporting liquid alloy electrode. Soaking a substrate in dispersion liquid of a metal organic frame material, taking out the substrate, drying the substrate, roasting the substrate for 20min-6h at the temperature of 500-1000 ℃ in nitrogen or inert atmosphere to obtain a current collector with a super-wetting interface, and contacting the current collector with liquid metal to obtain the self-supporting liquid alloy electrode. The electrode can be directly used as a metal battery cathode material, shows good electrochemical performance and long-cycle stability, and the preparation method can realize large-scale production. The method for preparing the self-supporting liquid alloy electrode avoids the complicated processes of vacuum adsorption, high-temperature treatment and the like, and fills the blank of the technology for preparing the liquid alloy electrode at room temperature. According to the preparation method, the flexible substrate can be selected, and the high fluidity of the liquid metal is combined, so that the flexible battery can be prepared. The invention has wide application prospect in the aspects of super capacitors, metal ion batteries, flow batteries and the like.
Description
Technical Field
The invention belongs to the technical field of inorganic material synthesis, and particularly relates to a preparation method of a self-supporting liquid alloy electrode.
Background
Alkali metals (such as lithium, sodium and potassium) are promising as a new generation of battery negative electrode material due to their higher theoretical specific capacity and lower redox potential. However, the metal negative electrode is limited in practical use by volume change during cycling, side reaction with the electrolyte, and dendrite growth problems. Wherein the dendrites cause short circuits and cause safety problems such as fire. The inhibition of dendrite growth is critical to the realization of metal negative applications. So far, by adding additives into the electrolyte, the solid electrolyte is designed and developed to replace the traditional organic electrolyte, and the artificial solid electrolyte interface film (SEI) and the like are constructed to inhibit the growth of metal dendrites to a certain extent. However, these methods cannot fundamentally solve the problems, and metal dendrites are generated during the long-term use of the battery.
Compared with a solid electrode, the liquid electrode has deformability and self-healing. For example, commercial sodium-sulfur batteries with high temperature molten sodium as the negative electrode have a longer cycle life and dendrite-free characteristics. However, such batteries need to operate at relatively high temperatures, which limits their use. Na and K metal contact at room temperature to form liquid alloy which can replace the cathode of alkali metal battery. Compared with pure liquid Na or K metal which is melted at high temperature, the liquid Na-K alloy can realize liquid state without heating equipment, and shows good application prospect. In view of the flow characteristics of the liquid, it is desirable to confine the liquid Na-K alloy to a stable substrate. Serious problems are faced in this process. The surface tension of the liquid metal is large, and the Na-K alloy cannot be loaded on the current collector. Although the surface tension of the liquid metal at high temperature or in a vacuum environment can be reduced, the infiltration is facilitated, and the preparation of the Na-K electrode is realized. However, extra cost is increased in a high-temperature or vacuum environment, and when the electrode is restored to a normal-temperature and normal-pressure state, the Na-K alloy is easy to fall off from the current collector, so that potential safety hazards are caused. Therefore, a simple and safe method for preparing the liquid alloy electrode is needed.
Disclosure of Invention
The invention provides a preparation method for realizing a self-supporting liquid alloy electrode by infiltrating high-surface-tension liquid metal by using a current collector with a super-infiltration interface aiming at the blank of the technical field of liquid alloy electrode preparation.
The preparation method of the self-supporting liquid alloy electrode comprises the following steps: soaking the substrate in dispersion liquid of a metal organic frame material, taking out the substrate, drying the substrate, roasting the substrate for 20min-6h at the temperature of 500-1000 ℃ in nitrogen or inert atmosphere to obtain a current collector with a super-wetting interface, and contacting the current collector with liquid metal to obtain the self-supporting liquid alloy electrode.
The substrate is selected from one or more of carbon fiber cloth, carbon paper, foam copper, foam nickel, a copper sheet, an aluminum sheet, a stainless steel net, a nickel net, a copper net, a titanium sheet or conductive glass.
The metal organic framework material contains one or more of Co, Zn, Ni, Mn, Fe, Al, Ag, Au and Pt.
The liquid metal is selected from one, two or more of Na, K, Ga, In and Sn, and the metal is In a liquid state by regulating and controlling the temperature.
The contact mode is dripping, soaking, rolling or injecting.
The contact time is 1-100 s.
The load capacity of the liquid metal in the self-supporting liquid alloy electrode is 10-60mg/cm -2 。
Before the current collector contacts with the liquid metal, oxide impurities floating on the surface of the liquid metal need to be removed.
The invention has the beneficial effects that: the metal organic frame material used in the invention forms a metal nitrogen carbon structure after being roasted, has super-wetting interface performance, and is in self-supporting liquid alloy electrode after being contacted with liquid metal. The electrode can be directly used as a metal battery cathode material, shows good electrochemical performance and long-cycle stability, and the preparation method can realize large-scale production. The method for preparing the self-supporting liquid alloy electrode avoids the complicated processes of vacuum adsorption, high-temperature treatment and the like, and fills the blank of the technology for preparing the liquid alloy electrode at room temperature. The preparation method can select a flexible substrate, combines the strong fluidity of the liquid metal, and can prepare the flexible battery, and the bending frequency can reach 1000-20000 times. The invention has wide application prospect in the aspects of super capacitors, metal ion batteries, flow batteries and the like.
Drawings
FIG. 1 is a schematic flow diagram of a process for preparing a self-supporting liquid alloy electrode.
FIG. 2 is a process for preparing the self-supporting liquid NaK alloy electrode of example 1.
Fig. 3 is a cycle test chart of matching of the self-supporting liquid NaK alloy negative electrode, the common Na negative electrode and the vanadium sodium phosphate positive electrode prepared in example 1.
Fig. 4 is a cycle test chart of matching of the self-supporting liquid NaK alloy negative electrode, the common K negative electrode and the prussian blue potassium positive electrode prepared in example 1.
Detailed Description
[ example 1 ]
Preparing a self-supporting liquid NaK alloy cathode by using a CoNC structure super-infiltration interface:
a: 50mL of 7.3mg/mL cobalt nitrate hexahydrate (Co (NO) 3 ) 2 ·6H 2 O) a salt solution;
b: 50mL of 16.43mg/mL dimethylimidazole (C) was prepared 6 H 12 N 4 ) A solution;
c: dropwise adding the solution prepared in the step b into the salt solution prepared in the step a to obtain turbid blue-violet suspension; soaking 3cm × 2cm of carbon fiber cloth in the suspension for 6 h;
d: taking out the carbon fiber cloth, drying, and roasting in a nitrogen atmosphere furnace at 800 ℃ for 2 hours to obtain a current collector with a super-wetting interface;
e: uniformly mixing Na and K in a mass ratio of 1:1 to obtain a liquid NaK alloy, and removing oxide impurities floating on the surface;
f: c, carrying out contact infiltration on the current collector obtained in the step d and the liquid metal obtained in the step e, and controlling the contact time to be 1.4s, namelyObtained from a supported liquid NaK alloy cathode, the load of the NaK alloy is 30mg/cm -2 。
Claims (8)
1. A preparation method of a self-supporting liquid alloy electrode is characterized by comprising the following specific operations: soaking the substrate in dispersion liquid of a metal organic frame material, taking out the substrate, drying the substrate, roasting the substrate for 20min-6h at the temperature of 500-1000 ℃ in nitrogen or inert atmosphere to obtain a current collector with a super-wetting interface, and contacting the current collector with liquid metal to obtain the self-supporting liquid alloy electrode.
2. The preparation method according to claim 1, wherein the substrate is selected from one or more of carbon fiber cloth, carbon paper, copper foam, nickel foam, copper sheet, aluminum sheet, stainless steel mesh, nickel mesh, copper mesh, titanium sheet or conductive glass.
3. The preparation method according to claim 1, wherein the metal organic framework material contains one or more of Co, Zn, Ni, Mn, Fe, Al, Ag, Au and Pt.
4. The method according to claim 1, wherein the liquid metal is selected from one, two or more of Na, K, Ga, In and Sn, and the metal is In a liquid state by controlling the temperature.
5. The method of claim 1, wherein the contacting is by drop coating, dipping, soaking, rolling, or injection.
6. The method of claim 1, wherein the contacting is for a time of 1 to 100 seconds.
7. The method of claim 1, wherein the liquid metal loading in the self-supporting liquid alloy electrode is 10-60mg/cm -2 。
8. The method according to claim 1, wherein before the current collector contacts the liquid metal, oxide impurities floating on the surface of the liquid metal are removed.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273672A (en) * | 2018-08-29 | 2019-01-25 | 浙江大学 | SEI film cladding Na-K liquid alloy electrode in situ and its preparation method and application |
| CN111662479A (en) * | 2020-07-21 | 2020-09-15 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | Gel polymer electrolyte composite membrane and preparation method and application thereof |
| CN112750983A (en) * | 2020-12-31 | 2021-05-04 | 合肥国轩高科动力能源有限公司 | Three-dimensional composite lithium metal negative electrode, preparation method thereof and lithium battery |
| CN113113593A (en) * | 2021-02-26 | 2021-07-13 | 华北理工大学 | Room temperature solid sodium ion battery based on liquid alloy |
| CN113224313A (en) * | 2021-04-30 | 2021-08-06 | 北京化工大学 | Metal organic phosphine frame glass modified metal negative current collector and preparation method thereof |
| CN114122332A (en) * | 2021-11-25 | 2022-03-01 | 江苏科技大学 | Method for preparing three-dimensional metal lithium cathode by using MOFs (metal-organic frameworks) derivatives |
-
2022
- 2022-05-15 CN CN202210525300.6A patent/CN114975892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273672A (en) * | 2018-08-29 | 2019-01-25 | 浙江大学 | SEI film cladding Na-K liquid alloy electrode in situ and its preparation method and application |
| CN111662479A (en) * | 2020-07-21 | 2020-09-15 | 中国科学院苏州纳米技术与纳米仿生研究所南昌研究院 | Gel polymer electrolyte composite membrane and preparation method and application thereof |
| CN112750983A (en) * | 2020-12-31 | 2021-05-04 | 合肥国轩高科动力能源有限公司 | Three-dimensional composite lithium metal negative electrode, preparation method thereof and lithium battery |
| CN113113593A (en) * | 2021-02-26 | 2021-07-13 | 华北理工大学 | Room temperature solid sodium ion battery based on liquid alloy |
| CN113224313A (en) * | 2021-04-30 | 2021-08-06 | 北京化工大学 | Metal organic phosphine frame glass modified metal negative current collector and preparation method thereof |
| CN114122332A (en) * | 2021-11-25 | 2022-03-01 | 江苏科技大学 | Method for preparing three-dimensional metal lithium cathode by using MOFs (metal-organic frameworks) derivatives |
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