CN107017411B - Portable high-efficiency aluminum-oxygen power battery and manufacturing method thereof - Google Patents
Portable high-efficiency aluminum-oxygen power battery and manufacturing method thereof Download PDFInfo
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- CN107017411B CN107017411B CN201610906999.5A CN201610906999A CN107017411B CN 107017411 B CN107017411 B CN 107017411B CN 201610906999 A CN201610906999 A CN 201610906999A CN 107017411 B CN107017411 B CN 107017411B
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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
- H01M4/8828—Coating with slurry or ink
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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
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
- H01M12/065—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode with plate-like electrodes or stacks of plate-like 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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8652—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites as mixture
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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
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
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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
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a portable high-efficiency aluminum oxide power battery and a manufacturing method thereof, wherein the method comprises the following manufacturing steps: mixing perovskite type manganese oxide, manganese dioxide, a conductive agent and polytetrafluoroethylene emulsion, dispersing and beating the mixture into slurry by using water, coating the slurry on two sides of a nickel screen, drying the nickel screen, and repeatedly rolling the nickel screen to obtain an oxygen catalytic electrode; manufacturing an aluminum anode plate by adopting an aluminum alloy metal sheet; mixing potassium hydroxide and cyclodextrin to prepare a colloidal electrolyte, and rolling the colloidal electrolyte into a sheet shape; mixing ABS and PC to prepare a shell of the power battery; fixing an oxygen catalysis electrode and an aluminum anode in an electrode reaction cavity of a shell, and arranging a flaky colloidal electrolyte between the oxygen catalysis electrode and the aluminum anode; after water is injected into the shell, a battery passage is formed among the oxygen catalysis electrode, the aluminum anode and the colloidal electrolyte in the electrode reaction cavity, and the solid oxygen piece on the outer side of the oxygen catalysis electrode slowly releases oxygen to provide oxygen for the battery oxygen reduction reaction, so that the power generation process of the aluminum-oxygen battery is completed.
Description
Technical Field
The invention relates to the technical field of aluminum-air batteries, in particular to a portable high-efficiency aluminum-oxygen power battery and a manufacturing method thereof.
Background
The disposable battery used in the market at present has low energy density, unstable voltage and short service life; along with the continuous development of the technology, the requirement on the battery is higher and higher, along with the rapid development of the unmanned aerial vehicle market in recent years, the existing battery cannot meet the market demand, and the aluminum-air battery is a novel chemical power supply with high energy, and the battery has the advantages of high energy density, long discharge time, stable voltage, good safety performance, no pollution, wide material sources, light weight and the like, so that the battery has wide application in various underwater power supplies, portable power supplies and standby power supplies.
In addition, the disposable aluminum-air battery has the advantage of long service life, so that the disposable aluminum-air battery can be widely used in mobile communication equipment within a reasonable price range. The aluminum-air battery meets the social requirements and development trends of the battery industry, and the application range of the aluminum-air battery also extends to various social fields. However, the existing aluminum-air battery mainly adopts silver as a catalyst, although the catalytic activity is high, the cost is high, and the aluminum-air battery is not suitable for large-scale production; the used electrolyte is corrosive liquid, so that the electrolyte is inconvenient to carry and store; the aluminum anode is easy to generate hydrogen evolution reaction in the electrolyte; the oxygen catalytic electrode usually takes in oxygen in the air, limiting its application range.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides the portable high-efficiency aluminum oxide power battery with simple process, low cost and light weight and the manufacturing method thereof.
In order to achieve the purpose, the invention provides a portable high-efficiency aluminum-oxygen power battery, which comprises the following manufacturing steps:
manufacturing an oxygen catalytic electrode: mixing perovskite type manganese oxide, manganese dioxide, a conductive agent and polytetrafluoroethylene emulsion in proportion, dispersing and beating the mixture into slurry by using a solvent, coating the slurry on two sides of a nickel screen and drying the nickel screen; spraying an oxygen diffusion layer on one surface of the catalyst layer, then attaching a polytetrafluoroethylene film on the oxygen diffusion layer, and repeatedly rolling to prepare an oxygen catalytic electrode;
manufacturing an aluminum anode: manufacturing an aluminum anode plate by adopting an aluminum alloy metal sheet;
generation of sheet-like colloidal electrolyte: mixing potassium hydroxide and cyclodextrin to prepare a colloidal electrolyte, and rolling the colloidal electrolyte into a sheet shape;
solid oxygen tablet generation: mixing sodium percarbonate, corrosion inhibitor and curing agent in proportion, and repeatedly rolling into sheets;
manufacturing a shell: preparing a shell of the battery by adopting a mixed raw material of ABS and PC through injection molding of a precision mold;
assembling the power battery: fixing an oxygen catalysis electrode and an aluminum anode in an electrode reaction cavity of a shell, and arranging a flaky colloidal electrolyte between the oxygen catalysis electrode and the aluminum anode; arranging a solid oxygen sheet in a cavity outside the oxygen catalytic electrode to form a single battery; assembling the single batteries into a battery pack according to the voltage requirement; the whole battery pack is sleeved in the shell;
after water is injected into the shell, the oxygen catalysis electrode, the aluminum anode and the colloidal electrolyte in the electrode reaction cavity enter a reaction state, oxygen at the position of the oxygen catalysis electrode obtains electrons and converts the electrons into hydroxyl ions, and the simple aluminum on the aluminum anode loses the electrons and converts the simple aluminum into positive aluminum ions, so that the power generation process is completed.
The manufacturing method also comprises the process of generating the solid oxygen sheet, mixing the sodium percarbonate, the corrosion inhibitor and the curing agent in proportion, repeatedly rolling the mixture into the solid oxygen sheet, fixing the solid oxygen sheet in an oxygen supply cavity of the shell, and adding water into the galvanic pile to generate oxygen.
The shell comprises a plurality of electrode reaction cavities and a plurality of oxygen supply cavities, the electrode reaction cavities and the oxygen supply cavities are arranged at intervals, each electrode reaction cavity comprises two oxygen catalytic electrodes, two colloidal electrolytes and an aluminum anode, one oxygen catalytic electrode in each adjacent electrode reaction cavity shares one solid oxygen sheet, and oxygen released by the solid oxygen sheets in the reaction process moves to the oxygen catalytic electrodes of the electrode reaction cavities on two sides respectively to obtain electrons.
Wherein, in the reaction process, water stretches to shell bottom buffer chamber from the notes liquid mouth at shell top along the direction of annotating the liquid pipeline, goes into the liquid mouth through the first income liquid mouth of every oxygen supply chamber bottom and the second of every electrode reaction chamber bottom and gets into oxygen supply chamber and electrode reaction chamber respectively, the gaseous first pressure release mouth at every oxygen supply chamber top and the second pressure release mouth at every electrode reaction chamber top that aluminium electrode corrodes in alkaline solution and produces gets into the top buffer chamber of shell respectively, reaction liquid discharges from the shell pressure release mouth of top buffer chamber at last.
The invention relates to a portable high-efficiency aluminum-oxygen power battery which comprises a shell, a plurality of upper fixing plates, a plurality of lower fixing plates, a plurality of oxygen catalysis electrodes, a plurality of aluminum anodes and a plurality of colloid electrolyte sheets, wherein the plurality of upper fixing plates, the plurality of lower fixing plates, the plurality of oxygen catalysis electrodes, the plurality of aluminum anodes and the plurality of colloid electrolyte sheets are all accommodated in the shell, and one upper fixing plate and one lower fixing plate enclose to form an electrode reaction cavity for providing an electrochemical reaction environment;
each electrode reaction cavity comprises two oxygen catalysis electrodes, two colloid electrolyte sheets and an aluminum anode, one end of each oxygen catalysis electrode is arranged on the upper fixing plate, the other end of each oxygen catalysis electrode is arranged on the lower fixing plate, the two oxygen catalysis electrodes in the same electrode reaction cavity are respectively fixed at two ends of the inner wall of the electrode reaction cavity, the aluminum anode in the same electrode reaction cavity is fixed between the two oxygen catalysis electrodes, and the two colloid electrolyte sheets are respectively fixed between the different oxygen catalysis electrodes and the aluminum anode;
after water is injected into the shell, the oxygen catalysis electrode, the aluminum anode and the colloidal electrolyte in the electrode reaction cavity react with each other, oxygen at the position of the oxygen catalysis electrode obtains electrons and converts the electrons into hydroxyl ions, and the simple aluminum on the aluminum anode loses the electrons and converts the simple aluminum into positive aluminum ions.
The preparation method also comprises a process of generating a solid oxygen sheet, wherein the solid oxygen sheet is prepared by mixing sodium percarbonate, a corrosion inhibitor and a curing agent in proportion, repeatedly rolling the mixture into the solid oxygen sheet, fixing the solid oxygen sheet in an oxygen supply cavity of a shell, and adding water into the electric pile to generate oxygen
The shell is also provided with a liquid injection port, a top buffer cavity is formed by enclosing the upper fixing plates and the shell, and a bottom buffer cavity is formed by enclosing the lower fixing plates and the shell; the liquid injection port is communicated with the bottom buffer cavity through a liquid injection pipeline; the bottom of each oxygen supply cavity is provided with a first liquid inlet, the bottom of each electrode reaction cavity is provided with a second liquid inlet, the top of each oxygen supply cavity is provided with a first pressure relief opening, and the top of each electrode reaction cavity is provided with a second pressure relief opening; water extends to the buffer cavity at the bottom of the shell from the liquid injection port along the direction of the liquid injection pipeline, the water enters the oxygen supply cavity and the electrode reaction cavity respectively through the first liquid inlet at the bottom of each oxygen supply cavity and the second liquid inlet at the bottom of each electrode reaction cavity, and gas generated by corrosion of the aluminum electrode in alkaline solution enters the buffer cavity at the top of the shell respectively through the first pressure relief port at the top of each oxygen supply cavity and the second pressure relief port at the top of each electrode reaction cavity.
The shell further comprises a shell pressure relief opening, a pressure relief valve and a liquid injection sealing ring, the shell pressure relief opening and the liquid injection opening are all arranged at the top of the shell, the liquid injection sealing ring is arranged on the liquid injection opening, and the pressure relief valve is arranged on the shell pressure relief opening.
The oxygen catalysis electrode, the upper fixing plate and the lower fixing plate are both detachably and fixedly connected, the aluminum anode is detachably and fixedly connected with the shell, the aluminum anode and the oxygen catalysis electrode are equal in length, and the length of the colloidal electrolyte sheet is shorter than that of the aluminum anode and the oxygen catalysis electrode.
The oxygen catalytic electrode comprises a flow collecting layer, a catalytic layer, a waterproof breathable layer and a polytetrafluoroethylene layer, wherein the catalytic layer, the waterproof breathable layer and the polytetrafluoroethylene layer are respectively arranged on two sides of the flow collecting layer from inside to outside.
The invention has the beneficial effects that:
compared with the prior art, the portable high-efficiency aluminum-oxygen power battery has the advantages that the oxygen catalysis electrode prepared by the method is simple in process, low in cost, high in activity and stable in long-time operation voltage, perovskite type manganese oxide, manganese dioxide, a conductive agent and polytetrafluoroethylene are mixed in proportion and coated on a nickel net to serve as a catalysis layer, silver is prevented from being used as a catalyst, the cost is reduced, and the portable high-efficiency aluminum-oxygen power battery is suitable for large-scale production; the colloidal electrolyte is convenient to carry and use, and can be operated by directly adding water into the galvanic pile; the aluminum alloy is used as the anode, the electrochemical activity is high, and the self-corrosion rate in alkaline solution is low. The materials used and the substances produced by the invention can be recycled and reused, and the invention is environment-friendly, and develops a portable aluminum oxygen battery with economy, practicability and excellent electrochemical performance, thereby reducing the production cost of the aluminum air battery on the whole and realizing commercial production.
Drawings
FIG. 1 is a plot of the polarization current of the oxygen-catalyzed electrode of the portable high efficiency aluminum oxygen power cell of the present invention at a constant voltage of 1.2V;
fig. 2 is a schematic structural diagram of the portable high-efficiency aluminum-oxygen power battery of the invention.
The main element symbols are as follows:
10. aluminum anode 11, oxygen catalytic electrode
12. Colloidal electrolyte 13, solid oxygen sheet
14. Outer shell 15, upper fixing plate
16. Lower fixing plate
141. Liquid filling port 142 and shell pressure relief port
143. Liquid injection sealing ring 144 and pressure release valve
151. First pressure relief opening 152 and second pressure relief opening
161. A first inlet 162 and a second inlet.
Detailed Description
In order to more clearly describe the present invention, the present invention will be further described with reference to the accompanying drawings.
The invention relates to a portable high-efficiency aluminum oxide power battery, which comprises the following manufacturing steps:
1) Mixing perovskite type manganese oxide, manganese dioxide, a conductive agent and Polytetrafluoroethylene (PTFE) emulsion according to a mass ratio of 2; spraying a layer of PTFE emulsion on one surface of the catalyst layer, then attaching a polytetrafluoroethylene film on the PTFE emulsion, and repeatedly rolling to prepare an oxygen catalytic electrode 11; mixing potassium hydroxide and cyclodextrin according to a mass ratio of 10; mixing sodium percarbonate and a curing agent according to a mass ratio of 7:1, and rolling to form a solid oxygen sheet 13;
2) Fixing the oxygen catalysis electrode 11 and the aluminum electrode obtained in the step (1), and adding a colloidal electrolyte 12 sheet and a slow-release solid oxygen sheet between the oxygen catalysis electrode 11 and the aluminum electrode to assemble an aluminum oxygen battery;
3) Placing the aluminum-oxygen battery obtained in the step (2) into a plastic shell 14 (which is fully sealed and only provided with a liquid injection port 141 and a shell pressure relief port 142), and sealing and storing before use; when the electrolyte is used, the cover of the liquid injection port 141 is opened, water is injected into the battery, the battery starts to operate, the slow-release solid starts to be slowly decomposed to provide oxygen for the oxygen catalytic electrode 11, and the colloidal electrolyte 12 is slowly dissolved until the aluminum electrode is consumed; the electrode reaction cavity has a current density of 100mA/cm < 2 > under a voltage of 1.2V, and operates for more than 10 hours under the condition of keeping a current of 90mA/cm < 2 >;
4) When the battery is in operation, gas generated by corrosion of the aluminum electrode in the alkaline solution is automatically discharged through the pressure release valve 144;
5) The embodiment of the invention is formed by stacking 10 pieces of electrode reaction chambers, the size of each electrode reaction chamber is 10 x 14cm, the thickness of each aluminum electrode is 0.5mm, the total amount of the aluminum electrodes is about 500 g, 3.5Wh is generated per gram of aluminum, 1.5KWh of electricity is generated after all aluminum is consumed, and the unmanned aerial vehicle can last for more than 10 hours.
The battery of the invention can be composed of 5-20 electrode reaction cavities with any number of electrode reaction cavities; or a power supply system is formed by two or more than two galvanic piles, and the number of the electrode reaction cavities is not limited.
The invention relates to a portable high-efficiency aluminum oxygen power battery, which comprises a shell 14, a plurality of upper fixing plates 15, a plurality of lower fixing plates 16, a plurality of oxygen catalytic electrodes 11, a plurality of aluminum anodes 10 and a plurality of colloidal electrolytes 12, wherein the plurality of upper fixing plates 15, the plurality of lower fixing plates 16, the plurality of oxygen catalytic electrodes 11, the plurality of aluminum anodes 10 and the plurality of colloidal electrolytes 12 are all accommodated in the shell 14, and an electrode reaction cavity for providing an electrochemical reaction environment is formed by enclosing one upper fixing plate 15 and one lower fixing plate 16;
each electrode reaction cavity comprises two oxygen catalytic electrodes 11, two colloidal electrolytes 12 and an aluminum anode 10, one end of each oxygen catalytic electrode 11 is arranged on an upper fixing plate 15, the other end of each oxygen catalytic electrode 11 is arranged on a lower fixing plate 16, the two oxygen catalytic electrodes 11 in the same electrode reaction cavity are respectively fixed at two ends of the inner wall of the electrode reaction cavity, the aluminum anode 10 in the same electrode reaction cavity is fixed between the two oxygen catalytic electrodes 11, and the two colloidal electrolytes 12 are respectively fixed between the different oxygen catalytic electrodes 11 and the aluminum anode 10;
after water is injected into the shell 14, a conduction state is formed among the oxygen catalysis electrode 11, the aluminum anode 10 and the colloidal electrolyte 12 in the electrode reaction cavity, oxygen at the position of the oxygen catalysis electrode 11 obtains electrons and converts the electrons into hydroxyl ions, and the simple aluminum on the aluminum anode 10 loses the electrons and converts the electrons into positive-valence aluminum ions.
In the embodiment, the power battery further comprises a solid oxygen sheet 13, an oxygen supply cavity for accommodating the solid oxygen sheet 13 is formed by enclosing an upper fixing plate 15 and a lower fixing plate 16 between adjacent electrode reaction cavities, the solid oxygen sheet 13 is fixed in the oxygen supply cavity, and two sides of the solid oxygen sheet 13 are respectively opposite to one oxygen catalysis electrode 11 in the adjacent electrode reaction cavity; after water is added into the electric pile, the solid oxygen sheet 13 generates oxygen to obtain electrons on the two opposite oxygen catalytic electrodes 11.
In this embodiment, the casing 14 further has a liquid injection port 141, a top buffer chamber is defined between the plurality of upper fixing plates 15 and the casing 14, and a bottom buffer chamber is defined between the plurality of lower fixing plates 16 and the casing 14; the liquid injection port 141 is communicated with the bottom buffer cavity through a liquid injection pipeline; the bottom of each oxygen supply cavity is provided with a first liquid inlet 161, the bottom of each electrode reaction cavity is provided with a second liquid inlet 162, the top of each oxygen supply cavity is provided with a first pressure relief opening 151, and the top of each electrode reaction cavity is provided with a second pressure relief opening 152; water extends from the liquid injection port 141 to the buffer chamber at the bottom of the housing 14 along the direction of the liquid injection pipeline, and enters the oxygen supply chamber and the electrode reaction chamber through the first liquid inlet 161 at the bottom of each oxygen supply chamber and the second liquid inlet 162 at the bottom of each electrode reaction chamber, respectively, and gas generated by corrosion of the aluminum electrode in the alkaline solution enters the buffer chamber at the top of the housing 14 from the first pressure relief port 151 at the top of each oxygen supply chamber and the second pressure relief port 152 at the top of each electrode reaction chamber, respectively.
In this embodiment, the housing 14 further includes a housing pressure relief opening 142, a pressure relief valve 144, and a liquid injection sealing ring 143, the housing pressure relief opening 142 and the liquid injection opening 141 are both opened at the top of the housing 14, the liquid injection sealing ring 143 is disposed on the liquid injection opening 141, and the pressure relief valve 144 is disposed on the housing pressure relief opening 142.
In the present embodiment, the oxygen catalysis electrode 11 is detachably and fixedly connected to the upper fixing plate 15 and the lower fixing plate 16, the aluminum anode 10 is detachably and fixedly connected to the housing 14, the aluminum anode 10 and the oxygen catalysis electrode 11 have the same length, and the length of the gel electrolyte 12 is shorter than that of the aluminum anode 10 and the oxygen catalysis electrode 11.
In this embodiment, the oxygen catalytic electrode 11 includes a current collecting layer, a catalytic layer, a waterproof breathable layer, and a polytetrafluoroethylene layer, and the catalytic layer, the waterproof breathable layer, and the polytetrafluoroethylene layer are respectively disposed on two sides of the current collecting layer from inside to outside.
The invention has the advantages that:
1. the material used by the shell 14 of the aluminum oxygen battery is the same as that used by the shell 14 of the mobile phone, so that the aluminum oxygen battery has light weight, high strength and convenient carrying, and greatly lightens the mass of the aluminum oxygen battery;
2. the oxygen catalytic electrode 11 prepared by the invention has simple process, low cost, high activity and stable voltage for long-time operation, the polarization current density reaches 100mA/cm < 2 > under the voltage of 1.2V, and the oxygen catalytic electrode operates for more than 10 hours under the condition of keeping the current of 90mA/cm < 2 >;
3. when the colloidal electrolyte 12 is used, a water filling port of the galvanic pile is opened, water is directly added into the galvanic pile for operation, and the colloidal electrolyte 12 is convenient to carry and use;
4. the aluminum alloy is used as the anode, so that the electrochemical activity is high, and the self-corrosion rate in an alkaline solution is low;
5. by adding the slow-release solid oxygen sheet 13 between the electrodes, when the cell is used, a water injection port of the galvanic pile is opened, water is added into the galvanic pile, the solid oxygen is slowly decomposed to generate oxygen to provide enough oxygen for the oxygen catalysis electrode 11, so that the cell can operate in a closed environment without taking oxygen from the air (such as underwater operation or submarine and the like), and when the aluminum electrode is consumed, the cell stops operating; gases generated during operation of the battery are vented through a pressure relief valve 144;
6. the used materials and the produced substances can be recycled and are environment-friendly.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be considered by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. A manufacturing method of a portable high-efficiency aluminum-oxygen power battery is characterized by comprising the following manufacturing steps:
manufacturing an oxygen catalytic electrode: mixing perovskite type manganese oxide, manganese dioxide, a conductive agent and polytetrafluoroethylene emulsion in proportion, dispersing and beating the mixture into slurry by using a solvent, and coating the slurry on two surfaces of a nickel screen and drying the nickel screen; spraying an oxygen diffusion layer on one surface of the catalyst layer, then attaching a polytetrafluoroethylene film on the oxygen diffusion layer, and repeatedly rolling to prepare an oxygen catalytic electrode;
manufacturing an aluminum anode: manufacturing an aluminum anode plate by adopting an aluminum alloy metal sheet;
generation of sheet-like colloidal electrolyte: mixing potassium hydroxide and cyclodextrin to prepare a colloidal electrolyte, and rolling the colloidal electrolyte into a sheet shape; solid oxygen tablet generation: mixing sodium percarbonate, corrosion inhibitor and curing agent in proportion, and repeatedly rolling into sheets;
manufacturing a shell: preparing a shell of the battery by adopting a mixed raw material of ABS and PC through injection molding of a precision mold;
assembling the power battery: fixing an oxygen catalytic electrode and an aluminum anode in an electrode reaction cavity of a shell, and arranging a flaky colloidal electrolyte between the oxygen catalytic electrode and the aluminum anode; arranging a solid oxygen sheet in a cavity outside the oxygen catalytic electrode to form a single battery; assembling the single batteries into a battery pack according to the voltage requirement; the whole battery pack is sleeved in the shell;
after water is injected into the shell, the oxygen catalysis electrode, the aluminum anode and the colloidal electrolyte in the electrode reaction cavity enter a reaction state, oxygen at the position of the oxygen catalysis electrode obtains electrons and converts the electrons into hydroxyl ions, and the simple aluminum on the aluminum anode loses the electrons and converts the simple aluminum into positive aluminum ions, so that the power generation process is completed.
2. The method of claim 1, further comprising forming a gel electrolyte and a solid oxygen sheet, mixing potassium hydroxide and cyclodextrin in a certain proportion, milling the mixture uniformly, and rolling the mixture to form a gel electrolyte sheet; mixing sodium percarbonate, corrosion inhibitor and curing agent in proportion, and repeatedly rolling to generate solid oxygen tablets.
3. The method of claim 1, wherein the housing comprises a plurality of electrode reaction chambers and a plurality of oxygen supply chambers, the electrode reaction chambers and the oxygen supply chambers are arranged at intervals, each electrode reaction chamber comprises two oxygen catalytic electrodes, two colloidal electrolytes and an aluminum anode, the oxygen catalytic electrodes in adjacent monomer cavities share one solid oxygen sheet, and oxygen released by the solid oxygen sheet during the reaction provides oxygen required for the oxygen catalytic electrodes to participate in the reaction.
4. The method according to claim 3, wherein during the reaction, water extends from the liquid injection port at the top of the housing to the buffer chamber at the bottom of the housing along the direction of the liquid injection pipeline, and enters the oxygen supply chamber and the electrode reaction chamber through the first liquid inlet at the bottom of each oxygen supply chamber and the second liquid inlet at the bottom of each electrode reaction chamber, respectively, the gas generated by the corrosion of the aluminum electrode in the alkaline solution enters the buffer chamber at the top of the housing from the first pressure relief port at the top of each oxygen supply chamber and the second pressure relief port at the top of each electrode reaction chamber, respectively, and finally the reaction solution is discharged from the pressure relief port at the housing of the buffer chamber at the top.
5. A portable high-efficiency aluminum-oxygen power battery is characterized by comprising a shell, a plurality of upper fixing plates, a plurality of lower fixing plates, a plurality of oxygen catalysis electrodes, a plurality of aluminum anodes and a plurality of colloidal electrolyte sheets, wherein the plurality of upper fixing plates, the plurality of lower fixing plates, the plurality of oxygen catalysis electrodes, the plurality of aluminum anodes and the plurality of colloidal electrolyte sheets are all accommodated in the shell, and one upper fixing plate and one lower fixing plate enclose to form an electrode reaction cavity for providing an electrochemical reaction environment;
each electrode reaction cavity comprises two oxygen catalysis electrodes, two colloid electrolyte sheets and an aluminum anode, one end of each oxygen catalysis electrode is arranged on the upper fixing plate, the other end of each oxygen catalysis electrode is arranged on the lower fixing plate, the two oxygen catalysis electrodes in the same electrode reaction cavity are respectively fixed at two ends of the inner wall of the electrode reaction cavity, the aluminum anode in the same electrode reaction cavity is fixed between the two oxygen catalysis electrodes, and the two colloid electrolyte sheets are respectively fixed between the different oxygen catalysis electrodes and the aluminum anode;
after water is injected into the shell, the oxygen catalysis electrode, the aluminum anode and the colloidal electrolyte in the electrode reaction cavity react with each other, oxygen at the position of the oxygen catalysis electrode obtains electrons and converts the electrons into hydroxyl ions, and the simple aluminum on the aluminum anode loses the electrons and converts the simple aluminum into positive aluminum ions.
6. The portable high efficiency aluminum oxygen power cell according to claim 5, wherein the power cell further comprises a solid oxygen sheet, an oxygen supply chamber for accommodating the solid oxygen sheet is formed by the upper fixing plate and the lower fixing plate between the adjacent electrode reaction chambers, the solid oxygen sheet is fixed in the oxygen supply chamber, and two sides of the solid oxygen sheet are respectively opposite to one oxygen catalysis electrode in the adjacent electrode reaction chamber; after water is added into the electric pile, the solid oxygen sheet generates oxygen to obtain electrons on the two opposite oxygen catalytic electrodes.
7. The portable high efficiency aluminum oxygen power battery according to claim 5, wherein the casing is further provided with a liquid injection port, a top buffer chamber is formed by the plurality of upper fixing plates and the casing, and a bottom buffer chamber is formed by the plurality of lower fixing plates and the casing; the liquid injection port is communicated with the bottom buffer cavity through a liquid injection pipeline; the bottom of each oxygen supply cavity is provided with a first liquid inlet, the bottom of each electrode reaction cavity is provided with a second liquid inlet, the top of each oxygen supply cavity is provided with a first pressure relief opening, and the top of each electrode reaction cavity is provided with a second pressure relief opening; water extends to the buffer cavity at the bottom of the shell from the liquid injection port along the direction of the liquid injection pipeline, the water enters the oxygen supply cavity and the electrode reaction cavity respectively through the first liquid inlet at the bottom of each oxygen supply cavity and the second liquid inlet at the bottom of each electrode reaction cavity, and gas generated by corrosion of the aluminum electrode in alkaline solution enters the buffer cavity at the top of the shell respectively through the first pressure relief port at the top of each oxygen supply cavity and the second pressure relief port at the top of each electrode reaction cavity.
8. The portable efficient aluminum oxygen power battery according to claim 7, wherein the housing further comprises a housing pressure relief opening, a pressure relief valve and a liquid injection sealing ring, the housing pressure relief opening and the liquid injection opening are both arranged at the top of the housing, the liquid injection sealing ring is arranged on the liquid injection opening, and the pressure relief valve is arranged on the housing pressure relief opening.
9. The portable high efficiency aluminum oxygen power cell according to claim 5, wherein the oxygen catalysis electrode is detachably fixed to the upper fixing plate and the lower fixing plate, the aluminum anode is detachably fixed to the housing, the aluminum anode and the oxygen catalysis electrode are equal in length, and the length of the gel electrolyte sheet is shorter than the length of the aluminum anode and the length of the oxygen catalysis electrode.
10. The portable high-efficiency aluminum oxygen power battery according to claim 5, wherein the oxygen catalytic electrode comprises a current collecting layer, a catalytic layer, a waterproof breathable layer and a polytetrafluoroethylene layer, and the catalytic layer, the waterproof breathable layer and the polytetrafluoroethylene layer are respectively arranged on two sides of the current collecting layer from inside to outside.
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|---|---|---|---|---|
| CN107978825A (en) * | 2017-12-28 | 2018-05-01 | 张树雄 | A kind of Portable metal air battery |
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| FR1465879A (en) * | 1965-01-25 | 1967-01-13 | Leesona Corp | Improvements to electro-chemical cells |
| CN101017897A (en) * | 2007-02-07 | 2007-08-15 | 施建 | Anode catalysis electrode of improved aluminum and magnesium alloy fuel battery and its making method |
| CN105140596A (en) * | 2015-09-06 | 2015-12-09 | 河南科技大学 | Aluminum alloy anode material for air cell, preparation method and aluminum air cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR1465879A (en) * | 1965-01-25 | 1967-01-13 | Leesona Corp | Improvements to electro-chemical cells |
| CN101017897A (en) * | 2007-02-07 | 2007-08-15 | 施建 | Anode catalysis electrode of improved aluminum and magnesium alloy fuel battery and its making method |
| CN105140596A (en) * | 2015-09-06 | 2015-12-09 | 河南科技大学 | Aluminum alloy anode material for air cell, preparation method and aluminum air cell |
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| CN107017411A (en) | 2017-08-04 |
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