CN110048129A - Metal-air battery metal electrode material and its preparation method and application - Google Patents
Metal-air battery metal electrode material and its preparation method and application Download PDFInfo
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- CN110048129A CN110048129A CN201910204767.9A CN201910204767A CN110048129A CN 110048129 A CN110048129 A CN 110048129A CN 201910204767 A CN201910204767 A CN 201910204767A CN 110048129 A CN110048129 A CN 110048129A
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- metal
- air battery
- metal electrode
- magnesium
- electrode material
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 127
- 239000002184 metal Substances 0.000 title claims abstract description 127
- 239000007772 electrode material Substances 0.000 title claims abstract description 73
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 68
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 30
- 238000005275 alloying Methods 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 16
- 239000011701 zinc Substances 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- 239000004411 aluminium Substances 0.000 claims abstract description 14
- 229910052738 indium Inorganic materials 0.000 claims abstract description 14
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011572 manganese Substances 0.000 claims abstract description 13
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims description 31
- 229910052749 magnesium Inorganic materials 0.000 claims description 24
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 13
- 239000001257 hydrogen Substances 0.000 abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 238000002161 passivation Methods 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract description 7
- 238000007670 refining Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000010405 anode material Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010183 spectrum analysis Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Hybrid Cells (AREA)
Abstract
The invention discloses a kind of metal-air battery metal electrode materials and its preparation method and application.The metal-air battery metal electrode material is the magnesium alloy of open structure, wherein the alloying element in the magnesium alloy includes at least one of aluminium, zinc, lithium, indium, gallium, manganese.Preparation method includes the steps that the step of magnesium metal and alloying metal are carried out to molten alloyization processing and the magnesium alloy is carried out casting processing and prolongs pressure rolling process.Metal-air battery metal electrode material of the present invention has Refining Mg Alloy crystal grain, increases evolving hydrogen reaction overpotential, can destroy the structure of passivating film, can reduce magnesium alloy problem of passivation, to promote electrode activity to dissolve, improve the chemical property of magnesium alloy.And the preparation method condition is easily-controllable, and the metal-air battery metal electrode material performance of preparation is stablized, and high-efficient.The metal-air battery metal electrode material can prepare metal-air battery metal electrode and metal-air battery.
Description
Technical field
The invention belongs to electrochemical energy source domains, and in particular to a kind of metal-air battery metal electrode material and its preparation
Methods and applications.
Background technique
Metal-air battery is a kind of semi-fuel cell, it be with the oxygen in air as a positive electrode active material, metal
(zinc, magnesium or aluminium etc.) is used as negative electrode active material, and oxygen reaches gas-solid-liquid three phase boundary and metal by gas-diffusion electrode
It reacts and releases electric energy.Metal-air battery energy density with higher, capacity is big, specific energy is high, stable operating voltage,
It is safe and reliable when long service life, use, and abundant raw materials, reproducible utilization, cost performance is high and pollution-free, is green
The energy all has good market application prospect in terms of civil and military, such as it can be not only used for the disaster relief, speedily carries out rescue work and field is answered
Anxious illumination and communication aspect, and can be used as the power battery of electric bicycle, electric car.
In the metal electrode material of metal-air battery, magnesium metal is very active anode material, the reason of magnesium metal
It is up to 3910Wh/kg by specific energy, is 9 times of lithium ion battery, and from a wealth of sources, rich reserves, cheap, reaction product are not
It will cause environmental pollution, be the ideal electrode material of metal-air battery.Since magnesium is very active metal, electrode potential is low,
Chemical activity is very high, and in most of electrolyte solution, the solution rate of magnesium is quite fast, generates a large amount of hydrogen, leads to sun
The faradic efficiency of pole reduces.Since objectionable impurities exists in common magnesium (purity 99.0%-99.9%), microcosmic former electricity easily occurs
Pond corrosion reaction, self-corrosion speed are big；Meanwhile finer and close Mg (OH) is generated when reaction2Passivating film affects magnesium anode activity
Dissolution.Therefore, one of the key difficulties that preparation high-performance magnesium anode is magnesium air battery energy practical application are found.
Although occurring the report of magnesium-alloy anode material at present, found during technical application, it is commercial at present
Magnesium-alloy anode material the problems such as being difficult to well solve the contradiction of burn into activation and passivation of liberation of hydrogen, limit magnesium air
The industrialization and practical application of battery.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, a kind of metal-air battery metal electrode material is provided
Material and preparation method thereof, with solve liberation of hydrogen existing for existing magnesium anode, self-corrosion, passivation the technical issues of.
Another object of the present invention is to provide a kind of metal-air battery metal electrode and metal-air batteries, to solve
Magnesium anode contained by existing metal-air battery metal electrode leads to metal there are bad phenomenons such as liberation of hydrogen, self-corrosion, passivation
The undesirable technical problem of air cell chemical property.
In order to achieve the above-mentioned object of the invention, an aspect of of the present present invention provides a kind of metal-air battery metal electrode material
Material.The metal-air battery metal electrode material is the magnesium alloy of open structure, wherein the alloying element in the magnesium alloy
Including at least one of aluminium, lithium, zinc, indium, gallium, manganese.
Another aspect of the present invention provides a kind of preparation method of metal-air battery metal electrode material.The gold
Belong to air cell metal electrode material preparation method the following steps are included:
Magnesium metal and alloying metal are subjected to molten alloy processing, form magnesium alloy；The alloying metal include aluminium,
At least one of lithium, zinc, indium, gallium, manganese metal；
The magnesium alloy is warmed to 300-500 DEG C of carry out casting processing using auxiliary, after continue several times
Prolong pressure rolling process.
Another aspect of the present invention provides a kind of metal-air battery metal electrode and contains metal-air battery metal
The metal-air battery of electrode.The metal-air battery metal electrode is by metal-air battery metal electrode material of the present invention
Or it is prepared and is formed by metal-air battery metal electrode material prepared by preparation method of the present invention.
The metal-air battery includes air electrode, metal electrode and electrolyte, wherein the metal electrode is this hair
Bright metal-air battery metal electrode.
Compared with prior art, the present invention has technical effect below:
Metal-air battery metal electrode material of the present invention is used including at least one of aluminium, lithium, zinc, indium, gallium, manganese
Alloying element and magnesium form the magnesium alloy of open structure, in this way, under the presence and effect of the alloying element, it not only can be thin
Change magnesium alloy crystal grain, increases the overpotential of evolving hydrogen reaction, to reduce self-corrosion speed；The structure of passivating film can be destroyed simultaneously,
So that more complete, fine and close passivating film becomes loose porous, caducous corrosion product, asked to mitigate magnesium alloy passivation
Topic, to promote electrode activity to dissolve, improves the chemical property of magnesium alloy.
Alloying metal and magnesium metal are carried out melting conjunction by the preparation method of metal-air battery metal electrode material of the present invention
Aurification processing, and subsequent casting processing is carried out to the magnesium alloy of formation and prolongs pressure rolling process, so that the metal-air formed
Cell metallic electrode material has Refining Mg Alloy crystal grain, the overpotential of big evolving hydrogen reaction, low self-corrosion speed, Er Qiewei
It is loose porous.In addition, the preparation method condition is easily-controllable, the metal-air battery metal electrode material performance of preparation is stablized, and
And it is high-efficient.
Metal-air battery metal electrode of the present invention is due to being using metal-air battery metal electrode material system of the present invention
Standby to be formed, therefore, the metal-air battery metal electrode can not only increase the overpotential of evolving hydrogen reaction, reduce self-corrosion speed
Degree；The structure of passivating film can be destroyed simultaneously, to mitigate magnesium alloy problem of passivation, to promote electrode activity to dissolve, improves magnesium
The chemical property of alloy.Therefore, metal-air battery electrochemical performance of the present invention.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the preparation method process flow diagram of metal-air battery of embodiment of the present invention metal electrode material；
Fig. 2 is the X-ray diffractogram for the metal-air battery metal electrode material that the embodiment of the present invention 1 provides；
Fig. 3 is the scanning electron microscope (SEM) photograph for the metal-air battery metal electrode material that the embodiment of the present invention 1 provides；
Fig. 4 is the energy spectrum analysis figure for the metal-air battery metal electrode material that the embodiment of the present invention 1 provides.
Specific embodiment
In order to which technical problems, technical solutions and advantageous effects to be solved by the present invention are more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
The quality of each component noted in the disclosure of the embodiment of the present invention not only may refer to specifically containing for each component
Amount, can also indicate the proportionate relationship of quality between each component, therefore, as long as according to specification each component of the embodiment of the present invention
Content is scaled up or is reduced within specification of embodiment of the present invention scope of disclosure.Specifically, the embodiment of the present invention
Quality described in the specification can be mass unit well known to the chemical fields such as μ g, mg, g, kg.
On the one hand, the embodiment of the invention provides a kind of metal-air battery metal electrode materials.The metal-air electricity
Pond metal electrode material is the magnesium alloy of porous loose structure, and scanning electron microscope (SEM) figure is as shown in figure 4, it has
Microcellular structure abundant.Wherein, the alloying element in the magnesium alloy includes at least one of aluminium, lithium, zinc, indium, gallium, manganese.
In this way, not only can increase magnesium with Refining Mg Alloy crystal grain in the presence of those alloying elements and under magnesium metal function and close
The overpotential of golden evolving hydrogen reaction, to reduce self-corrosion speed；Magnesium alloy can be destroyed generates passivating film during discharge simultaneously
Structure so that more complete, fine and close passivating film becomes loose porous, caducous corrosion product, to mitigate magnesium alloy
Problem of passivation improves the chemical property of magnesium alloy.
In one embodiment, in the magnesium alloy magnesium mass content [90%-100%), surplus is alloy member
Element.Wherein, [90%-100%) indicate mass content be greater than or equal to 90%, less than 100%.In a specific implementation, institute
Stating alloying element is aluminium, zinc, manganese, and magnesium mass content is 96%, and aluminium mass content is 3%, and zinc mass content is 0.8%, manganese
Mass content is 0.2%.It optimizes and controls by the ratio and type of control control magnesium elements and alloying element, Neng Gouyou
Change magnesium alloy crystal grain, increases the overpotential of magnesium alloy evolving hydrogen reaction, to reduce self-corrosion speed, and porosity and looseness knot can be optimized
Structure.
In addition, by the metal-air battery metal electrode material sem analysis it is found that the metal-air battery is golden
The aperture for belonging to the porous loose structure of electrode material is nanometer and/or micron order.Such as the aperture of the porous loose structure
It is 100-200 nanometers.And the partial size of magnesium particle is in the magnesium alloy in the metal-air battery metal electrode material
500nm-200μm.Therefore, metal-air battery metal electrode material described above is porous using being formed including alloying element with magnesium
The magnesium alloy of open structure assigns magnesium alloy small crystal grain in the presence of those alloying elements and under magnesium metal function,
The overpotential of its evolving hydrogen reaction is increased, self-corrosion speed is reduced.Just because of the presence of alloy, it can effectively destroy magnesium alloy and exist
The structure for generating passivating film in discharge process improves the chemical property of magnesium alloy to mitigate magnesium alloy problem of passivation.
On the other hand, the embodiment of the invention also provides the preparation sides of metal-air battery metal electrode material described above
Method.The process flow of the preparation method of the metal-air battery metal electrode material as shown in Figure 1, itself the following steps are included:
S01: magnesium metal and alloying metal are subjected to molten alloy processing, form magnesium alloy；
S02: being warmed to 300-500 DEG C of carry out casting processing using auxiliary for the magnesium alloy, after continue it is several
Secondary prolongs pressure rolling process.
Wherein, the molten alloyization processing in the step S01 can be incites somebody to action according to the temperature and condition for preparing magnesium alloy
Magnesium metal and alloying metal are melted, and magnesium alloy is formed.
Alloying metal in step S01 is as described above, can be including in aluminium, zinc, lithium, zinc, indium, gallium, manganese extremely
A kind of few metal.In addition, it is to be understood that before carrying out the molten alloyization processing, it should each Treatment of Metal Surface
Completely, impurity etc. is avoided to adversely affect the performance for the metal-air battery metal electrode material that influence is finally prepared.
If in the step S02 to step step S01 preparation magnesium alloy carry out 300-500 DEG C at carry out casting processing and
Prolong pressure rolling process dry time, is on the one hand so that the magnesium alloy forms scheduled shape and state, it is often more important that institute
Magnesium alloy micromorphology is stated, if porous loose structure carries out twice-modified processing, so that the metal-air battery metal electricity formed
Pole material remains porous open structure, and has aperture appropriate, and stable structure and good mechanical performance.Cause
This, in the particular embodiment, the casting processing and the process conditions for prolonging pressure rolling process should be by step S01 system
Standby magnesium alloy carries out casting and prolongs size and corresponding intensity etc. of the pressure rolling system up to reaching metal-air battery metal electrode
Mechanical property requirements.The pressure rolling process of prolonging several times can be 1 time or 2 times or more, this prolongs pressure rolling number of processing
It is that casting is combined to handle, until by the metal-air battery metal electrode material of the formation scheduled size such as thickness etc. on earth
It is required that.
It can be seen from the above, the preparation method of the metal-air battery metal electrode material by alloying metal and magnesium metal into
The processing of row molten alloy and casting handle and prolong pressure rolling process, so that the metal-air battery metal electrode material tool formed
There are Refining Mg Alloy crystal grain, the overpotential of big evolving hydrogen reaction, low self-corrosion speed, and there is the loose of aperture appropriate
Structure, while the mechanical performances such as intensity are excellent.In addition, the preparation method condition is easily-controllable, the metal-air battery metal of preparation
Electrode material performance is stablized, and high-efficient.
In another aspect, the embodiment of the present invention is also based on above-mentioned metal-air battery metal electrode material and preparation method thereof
Provide a kind of metal-air battery metal electrode.The metal-air battery metal electrode is that metal-air is electric by mentioned earlier
Metal-air battery metal electrode material prepared by pond metal electrode material or by mentioned earlier preparation method prepares to be formed.Specifically
It can be according to the requirement of metal-air battery metal electrode using the metal-air battery metal electrode material as material system
The standby metal-air battery metal electrode material.It is as described above based on the metal-air battery metal electrode material
Performance, the metal-air battery metal electrode electrochemical performance described in this way and stabilization.
The embodiment of the invention also provides a kind of metal-air batteries.The metal-air battery it is natural include gold
Belong to the necessary component of air cell, such as including air electrode, metal electrode and electrolyte, certainly further includes described for containing
The shell of electrolyte.Wherein, the metal electrode is metal-air battery metal electrode described above.The metal described in this way is empty
Pneumoelectric pond electrochemical performance and stabilization.
Embodiment metal-air battery metal electrode material is illustrated the present invention below by way of multiple specific embodiments
And its preparation method and application etc..
Embodiment 1
Present embodiments provide a kind of metal-air battery metal electrode material and preparation method thereof.The metal-air electricity
Pond metal electrode material is the magnesium alloy of porous loose structure, and it is containing Mg is 96%, Al 3%, Zn 0.8%, Mn
For 0.2% magnesium alloy.
The metal-air battery metal electrode material preparation method includes the following steps:
S11. magnesium alloy is prepared:
By materials statement surface treatment it is clean after, by Mg metal, Al metal, Zn metal and Mn metal mixed and carry out melting conjunction
Aurification processing, obtain Mg be 96%, the magnesium alloy that Al 3%, Zn 0.8%, Mn are 0.2%；
S12. casting processing is carried out to magnesium alloy and prolongs pressure rolling process:
The magnesium alloy is warmed to 400 DEG C of carry out casting processing using auxiliary, after continue multiple to prolong pressure rolling
System processing, so that the magnesium alloy reaches the correlated performances requirement such as the thickness for preparing metal-air battery metal electrode, intensity.
Embodiment 2
Present embodiments provide a kind of metal-air battery metal electrode material and preparation method thereof.The metal-air electricity
Pond metal electrode material is the magnesium alloy of porous loose structure, and it is containing Mg is 93%, aluminium 4%, gallium 1%, indium are
1.5%, the magnesium alloy that manganese is 0.5%.
The metal-air battery metal electrode material preparation method includes the following steps:
S11. magnesium alloy is prepared:
By materials statement surface treatment it is clean after, magnesium metal, aluminum metal, gallium metal, indium metal, manganese Metal are mixed and are carried out
Molten alloyization processing, obtain magnesium be 93%, the magnesium alloy that aluminium 4%, gallium 1%, indium 1.5%, manganese are 0.5%；
S12. casting processing is carried out to magnesium alloy and prolongs pressure rolling process:
The magnesium alloy is warmed to 300 DEG C of carry out casting processing using auxiliary, after continue multiple to prolong pressure rolling
System processing, so that the magnesium alloy reaches the correlated performances requirement such as the thickness for preparing metal-air battery metal electrode, intensity.
Embodiment 3
Present embodiments provide a kind of metal-air battery metal electrode material and preparation method thereof.The metal-air electricity
Pond metal electrode material is the magnesium alloy of porous loose structure, and it is to contain the magnesium alloy that Mg is 99%, indium is 1%.
The metal-air battery metal electrode material preparation method includes the following steps:
S11. magnesium alloy is prepared:
By materials statement surface treatment it is clean after, magnesium metal, indium metal mix to and carried out molten alloy processing, obtains magnesium
The magnesium alloy for being 1% for 99%, indium；
S12. casting processing is carried out to magnesium alloy and prolongs pressure rolling process:
The magnesium alloy is warmed to 500 DEG C of carry out casting processing using auxiliary, after continue multiple to prolong pressure rolling
System processing, so that the magnesium alloy reaches the correlated performances requirement such as the thickness for preparing metal-air battery metal electrode, intensity.
Metal-air battery embodiment
The metal-air battery metal electrode material that above-described embodiment 1 to embodiment 3 is provided is respectively according to metal-air
The requirement of cell metallic electrode is cut, and obtains metal-air battery metal electrode respectively.
Each metal-air battery metal electrode is carried out being assembled into metal-air battery with air electrode, electrolyte respectively.
Wherein, electrolyte is neutral sodium chloride solution, and air electrode is that novel carbon-based three-phase spreads oxygen electrode.
Correlation properties test
By the metal-air battery metal electrode material that above-described embodiment 1-3 is provided carry out respectively X-ray diffraction (XRD),
Scanning electron microscope (SEM) analysis and energy spectrum analysis (EDS), wherein the metal-air battery metal electrode material provided in embodiment 1
X-ray diffraction analysis result as shown in Fig. 2, scanning electron microscope such as Fig. 3, shown in EDAX results Fig. 4.It can be apparent by Fig. 2
Find out that the magnesium-alloy anode material of the embodiment 1 preparation is mainly made of the characteristic peak of α-Mg.From the figure 3, it may be seen that prepared by embodiment 1
Magnesium anode material there is the open structure of even porous, and aperture is largely distributed in 100-200 ran.Fig. 4 element
Analysis shows that the element of the alloy is mainly the elements such as magnesium, aluminium, zinc and manganese composition.In addition, the metal provided other embodiments
The X-ray diffraction (XRD) of air cell metal electrode material progress, scanning electron microscope (SEM) analysis are obtained with energy spectrum analysis (EDS)
Know, the metal-air battery metal electrode material that each embodiment provides is porous open structure, and it is porous be evenly distributed,
And respectively the X-ray diffractogram of the metal-air battery metal electrode material of embodiment offer and energy spectrum analysis figure show respectively
Respective alloy feature out.
Simultaneously by the metal-air battery of the above-mentioned metal-air battery metal electrode material containing each embodiment respectively into
Related chemical property experiment, by final experimental result learns the metal-air battery metal electrode material of 1-3 containing embodiment
The energy density of metal-air battery is big, capacity is high, and stable electrochemical property and service life is bright has obtained obviously changing
It is kind.
Metal-air battery metal electrode material of the embodiment of the present invention is using the overpotential for being capable of increasing evolving hydrogen reaction, with drop
Low self-corrosion speed, can destroy the structure of passivating film, thus mitigate magnesium alloy problem of passivation, to promote electrode activity to dissolve,
The chemical property for improving magnesium alloy delays to assign corresponding metal-air battery electrochemical performance using the longevity
Life.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of metal-air battery metal electrode material, which is characterized in that the metal-air battery metal electrode material is
The magnesium alloy of open structure, wherein the alloying element in the magnesium alloy includes aluminium, lithium, zinc, indium, gallium, at least one in manganese
Kind.
2. metal-air battery metal electrode material according to claim 1, which is characterized in that magnesium in the magnesium alloy
Mass content [90%-100%), surplus be the alloying element.
3. -2 described in any item metal-air battery metal electrode materials according to claim 1, which is characterized in that described loose
The aperture of structure is nanometer and/or micron order.
4. metal-air battery metal electrode material according to claim 3, which is characterized in that the hole of the open structure
Diameter is 100-200 nanometers.
5. -2,4 described in any item metal-air battery metal electrode materials according to claim 1, which is characterized in that the magnesium
The partial size of magnesium particle is 500nm-200 μm in alloy.
6. a kind of preparation method of metal-air battery metal electrode material, which comprises the following steps:
Magnesium metal and alloying metal are subjected to molten alloy processing, form magnesium alloy；The alloying metal into include aluminium, zinc,
At least one of lithium, indium, gallium, manganese metal；
The magnesium alloy is warmed to 300-500 DEG C of carry out casting processing using auxiliary, after continue several times prolong pressure
Rolling process.
7. preparation method according to claim 6, it is characterised in that: in the step of molten alloyization is handled, institute
State magnesium metal be accounted for according to the magnesium metal magnesium metal and the alloying metal total amount [90%-100%) ratio with
The alloying metal is mixed, and carries out the molten alloyization processing.
8. a kind of metal-air battery metal electrode, it is characterised in that: the metal-air battery metal electrode is by claim
The described in any item metal-air battery metal electrode materials of 1-6 are prepared by any one of the claim 7-8 preparation method
Metal-air battery metal electrode material prepare to be formed.
9. a kind of metal-air battery, including air electrode, metal electrode and electrolyte, it is characterised in that: the metal electrode
For metal-air battery metal electrode according to any one of claims 8.
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