CN109778029A - Rare-earth containing aluminium alloy anode material and its preparation method and application - Google Patents
Rare-earth containing aluminium alloy anode material and its preparation method and application Download PDFInfo
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- CN109778029A CN109778029A CN201910171335.2A CN201910171335A CN109778029A CN 109778029 A CN109778029 A CN 109778029A CN 201910171335 A CN201910171335 A CN 201910171335A CN 109778029 A CN109778029 A CN 109778029A
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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
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Abstract
A kind of rare-earth containing aluminium alloy anode material and its preparation method and application, component and mass percentage content are magnesium 0.5%-2%, tin 0.02%-0.12%, rare earth element 0.01-1.0%, and surplus is aluminium.The present invention is using aluminium as matrix, micro Mg, Sn and rare earth element are added, effective activation aluminum alloy anode and its liberation of hydrogen self-corrosion rate can be reduced, the addition of trace rare-earth element can be with refining grain size, liberation of hydrogen self-corrosion rate can be significantly reduced, battery overall characteristic is obviously improved.The anode material being prepared has lower self-corrosion rate and liberation of hydrogen rate.
Description
Technical field
The present invention relates to a kind of technology in aluminium-air cell field, specifically a kind of rare-earth containing aluminium alloy anode material
And its preparation method and application.
Background technique
Aluminium-air cell is anode using raffinal Al or aluminium alloy as cathode, oxygen, with sodium chloride (NaCl) or hydrogen
Sodium oxide molybdena (NaOH) aqueous solution is electrolyte, and aluminium-air cell industry development at present still suffers from many technical bottlenecks, affects
Its application.Tracing it to its cause has four aspects: first is that metal anode self-corrosion situation is serious, causing anode utilization rate not high；Two
Be current research and development application oxygen reduction catalyst catalytic activity it is not high enough, electrode power density has to be hoisted；Third is that conventional structure
Air cathode polarization resistance it is larger, it is difficult to meet high-power output；Fourth is that battery system thermal runaway problem, leads to battery system
It can not work long hours.
Summary of the invention
The present invention is for aluminium-air cell metal electrode in alkaline working environment, and self-corrosion evolving hydrogen reaction is serious, especially
The problems such as being the utilization rate and aluminium-air cell output power that aluminum honeycomb is seriously reduced in high current, propose one kind
Rare-earth containing aluminium alloy anode material and its preparation method and application has lower self-corrosion rate and liberation of hydrogen rate.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of rare-earth containing aluminium alloy anode material, component and mass percentage content are magnesium 0.5%-
2%, tin 0.02%-0.12%, rare earth element 0.01-1.0%, surplus are aluminium.
The rare earth element is zirconium or yttrium.
The present invention relates to the smelting and pouring preparation methods of above-mentioned rare-earth containing aluminium alloy anode material, through 750-780 DEG C melt
After refining casting, successively obtained after Homogenization Treatments, hot rolling solid solution and ageing treatment.
The melting, preferably keeps the temperature 30-90min in the completed.
The melting preferably carries out under protective atmosphere, and nitrogen or argon gas may be selected in protective atmosphere.
The Homogenization Treatments temperature is 480-500 DEG C, time 6h~12h.
The hot-rolled temperature is 450-500 DEG C, deflection 65%-85%.
The temperature of the solution treatment is 500-550 DEG C, soaking time 30min-60min.
The aging temperature is 160-200 DEG C, soaking time 8h-12h.
The present invention relates to a kind of aluminium-air cell, the anode being prepared including above-mentioned rare-earth containing aluminium alloy anode material,
The cathode that is made of Catalytic Layer, nickel screen conducting matrix grain and waterproof ventilative layer, by modified MnO2Catalyst, active carbon and polytetrafluoro
The Catalytic Layer and electrolyte of ethylene composition.
Technical effect
Compared with prior art, the present invention adds micro Mg, Sn and rare earth element using aluminium as matrix, can effective activation
Aluminum alloy anode simultaneously reduces its liberation of hydrogen self-corrosion rate, and the addition of trace rare-earth element can significantly be dropped with refining grain size
Low liberation of hydrogen self-corrosion rate, battery overall characteristic are obviously improved.
Detailed description of the invention
Fig. 1 is 1 aluminium-air cell open-circuit voltage of embodiment；
Fig. 2 is 2 aluminium-air cell open-circuit voltage of embodiment；
Fig. 3 is 3 aluminium-air cell open-circuit voltage of embodiment.
Specific embodiment
Embodiment 1
Microalloying of rare earth aluminum alloy anode material in the present embodiment, component and mass percentage content are magnesium 0.5%,
Tin 0.082%, yttrium 0.01%, surplus are aluminium.
The preparation method of the microalloying of rare earth aluminum alloy anode material of the present embodiment, comprising the following steps:
1, aluminium ingot, magnesium metal, metallic tin, magnesium yttrium intermediate alloy under protection of argon gas, are heated to 780 DEG C, heat preservation
60min；
2, being sufficiently stirred keeps melting alloy raw uniform, and bulk alloy ingot is poured into after the completion of refining.
3, Homogenization Treatments temperature is 500 DEG C, time 8h.
4, hot-rolled temperature is 480 DEG C, deflection 75%.
5, the temperature of solution treatment is 550 DEG C, soaking time 45min, water quenching.
6, aging temperature is 200 DEG C, soaking time 10h.
Embodiment 2
Microalloying of rare earth aluminum alloy anode material in the present embodiment, component and mass percentage content are magnesium 1.2%,
Tin 0.1%, zirconium 0.09%, surplus are aluminium.
The preparation method of the microalloying of rare earth aluminum alloy anode material of the present embodiment, comprising the following steps:
1, aluminium ingot, magnesium metal, metallic tin, Mg-Zr intermediate alloy under protection of argon gas, are heated to 760 DEG C, heat preservation
30min；
2, being sufficiently stirred keeps melting alloy raw uniform, and bulk alloy ingot is poured into after the completion of refining.
Embodiment 3
Microalloying of rare earth aluminum alloy anode material in the present embodiment, component and mass percentage content are magnesium 2%, tin
0.02%, zirconium 0.06%, yttrium 0.1%, surplus is aluminium.
The preparation method of the microalloying of rare earth aluminum alloy anode material of the present embodiment, comprising the following steps:
1, under protection of argon gas, aluminium ingot, magnesium metal, metallic tin, Mg-Zr intermediate alloy, magnesium yttrium intermediate alloy are heated to
770 DEG C, keep the temperature 90min；
2, being sufficiently stirred keeps melting alloy raw uniform, and bulk alloy ingot is poured into after the completion of refining.
3, Homogenization Treatments temperature is 500 DEG C, time 6h.
4, hot-rolled temperature is 450 DEG C, deflection 85%.
5, the temperature of solution treatment is 520 DEG C, soaking time 30min, water quenching.
6, aging temperature is 180 DEG C, soaking time 8h.
The rare earth aluminum alloy material being prepared through the above way, obtains needed for battery further across cutting process
Anode plate；By the anode material of preparation with the cathode being made of Catalytic Layer, nickel screen conducting matrix grain and waterproof ventilative layer, by MnO2It urges
Agent, the Catalytic Layer of active carbon and polytetrafluoroethylene (PTFE) composition and electrolyte assemble to obtain aluminium-air cell.
Self-corrosion test and battery performance detection are carried out to above-mentioned rare earth aluminum alloy material, following performance is obtained and compares:
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (9)
1. a kind of rare-earth containing aluminium alloy anode material, which is characterized in that component and mass percentage content be magnesium 0.5%-2%,
Tin 0.02%-0.12%, rare earth element 0.01-1.0%, surplus are aluminium；
The rare earth element is zirconium or yttrium.
2. a kind of smelting and pouring preparation method of rare-earth containing aluminium alloy anode material, which is characterized in that through 750-780 DEG C of melting
After casting, successively obtained after Homogenization Treatments, hot rolling solid solution and ageing treatment.
3. according to the method described in claim 2, it is characterized in that, the melting keeps the temperature 30-90min in the completed.
4. according to the method in claim 2 or 3, characterized in that the melting carries out under protective atmosphere, protects gas
Atmosphere selects nitrogen or argon gas.
5. according to the method described in claim 2, it is characterized in that, the Homogenization Treatments temperature be 480-500 DEG C, time 6h
~12h.
6. according to the method described in claim 2, it is characterized in that, the hot-rolled temperature is 450-500 DEG C, and deflection is
65%-85%.
7. according to the method described in claim 2, it is characterized in that, the temperature of the solution treatment is 500-550 DEG C, when heat preservation
Between be 30min-60min.
8. according to the method described in claim 2, it is characterized in that, the aging temperature be 160-200 DEG C, soaking time
For 8h-12h.
9. a kind of aluminium-air cell, which is characterized in that including material is prepared containing any of the above-described claim the method
Anode, be made of Catalytic Layer, nickel screen conducting matrix grain and waterproof ventilative layer cathode, by modified MnO2Catalyst, active carbon
With the Catalytic Layer and electrolyte of polytetrafluoroethylene (PTFE) composition.
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| CN201910171335.2A CN109778029A (en) | 2019-03-07 | 2019-03-07 | Rare-earth containing aluminium alloy anode material and its preparation method and application |
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| CN104372206A (en) * | 2014-09-18 | 2015-02-25 | 河南科技大学 | Rare earth-containing amorphous/nanocrystal aluminum anode composite material, preparation method and aluminum air battery |
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2019
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| JPH11274008A (en) * | 1998-03-25 | 1999-10-08 | Matsushita Electric Ind Co Ltd | Electrolytic capacitor and manufacture thereof |
| JP4970742B2 (en) * | 2005-05-31 | 2012-07-11 | 昭和電工株式会社 | Aluminum material for electrolytic capacitor electrode, method for producing aluminum material for electrolytic capacitor, anode material for aluminum electrolytic capacitor, and aluminum electrolytic capacitor |
| JP5743642B2 (en) * | 2011-03-30 | 2015-07-01 | 株式会社神戸製鋼所 | Aluminum alloy brazing sheet |
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