CN110165339A - A kind of aluminium-air cell electrolyte and aluminium-air cell - Google Patents
A kind of aluminium-air cell electrolyte and aluminium-air cell Download PDFInfo
- Publication number
- CN110165339A CN110165339A CN201810304960.5A CN201810304960A CN110165339A CN 110165339 A CN110165339 A CN 110165339A CN 201810304960 A CN201810304960 A CN 201810304960A CN 110165339 A CN110165339 A CN 110165339A
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- Prior art keywords
- aluminium
- air cell
- electrolyte
- air
- cathode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/02—Details
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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
Abstract
The invention discloses a kind of aluminium-air cell electrolyte and aluminium-air cells, including aluminium alloy cathode, air cathode and electrolyte, the aluminium alloy cathode raw material includes following components by weight percentage: Al 2.0-8.0%, Pb 0.02-0.08%, In 0.05-0.1%, Ga 0.01-0.1%, Mg 0.1-2.0%, this aluminium-air cell electrolyte and aluminium-air cell, aluminium hydroxide is promoted to be precipitated by the way that electrolyte corrosion inhibitor is added in the electrolytic solution, avoid aluminium hydroxide that from cannot being discharged in time and be passivated anode, guarantee that the battery can work normally, its aluminium alloy cathode is by Al, Pb, In, Ga, Mg composition, open circuit potential is decreased obviously, self-corrosion reduces, electrode surface erosion is uniformly dissolved, in alkaline medium In be not easy to be formed passivating film, anode polarization is reduced, and using manganese dioxide as catalyst in air cathode, price is excellent honest and clean, has broad application prospects.
Description
Technical field
The present invention relates to aluminium-air cell technical field, specially a kind of aluminium-air cell electrolyte and aluminium air electricity
Pond.
Background technique
Metal-air battery is new generation of green battery, its manufacturing cost is low, specific energy is high, the recyclable benefit of raw material
With, superior performance, studying more metal-air battery at present has zinc-air battery, aluminium-air cell and lithium-air battery etc.,
With the immediate only zinc-air battery of industrialization, in galvanic series, aluminium is more active than zinc, can obtain higher battery electricity
Pressure, an aluminium atom can release three electronics, and a zinc atom releases two electronics, and the energy of battery can be improved in aluminium
Amount, in addition, it is aluminium rich reserves, cheap, therefore the progress of aluminium-air cell is very rapid, is a kind of rising
Air cell；
Aluminium-air cell is using aluminium and a kind of novel battery of the air as battery material, anode material of the aluminium as air cell
Material has the advantages that its uniqueness, and electrochemical equivalent is high, and the electrochemical equivalent of aluminium is 2980Ah/kg, for gold highest in addition to lithium
Belonging to, electrode potential is low, its standard electrode potential is -2.35V (vs.SHE) in alkaline solution, for anode material, current potential
More more negative, better, battery can provide bigger electromotive force, aluminium it is resourceful, it is cheap, currently, air cell aluminium anodes material
For material compared with zinc anode material, existing matter of utmost importance is that aluminium self-corrosion in alkaline solution is very serious, causes anode utilization rate
It substantially reduces, hinders the commercial applications of aluminium-air cell, researcher develops novel aluminium anodes material by microalloying
Material, and the corresponding electrolyte corrosion inhibitor of addition, can reduce the self-corrosion rate of aluminium, aluminium-air cell anode material commonly closes
Alloying element mainly has zinc, magnesium, sows, indium, tin, lead, mercury, bismuth etc., these elements are added in aluminium that form ternary, quaternary etc. polynary
Alloy.
In the prior art: application publication number is that the patent of 105140595 A of CN discloses a kind of aluminium-air cell electrolysis
Liquid and aluminium-air cell, the electrolyte corrosion inhibitor are the ethanol solutions of Lavender, wherein the volume hundred of Lavender
Point content is 10%~60%, the main component of Lavender include linalool, bergamio, cineole, β-ocimenum,
The pure and mild camphor of terpene -4-, there are lone pair electrons in contained group Molecule, the oxygen atom in group is adsorbed on metal by lone pair electrons
Surface forms insoluble complex layer, separates metal surface with aqueous solution, plays corrosion inhibition, is easy in electrolytic process
Gelatinous aluminium hydroxide is formed, how cannot be discharged in time, anodic passivity can be caused, then resistance is excessive, causes operating voltage
Decline.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of aluminium-air cell electrolyte and aluminium
Air cell can promote aluminium hydroxide to be precipitated, and guarantee that the battery can work normally, can effectively solve background technique
The problems in.
To achieve the above object, the invention provides the following technical scheme: a kind of aluminium-air cell electrolyte and aluminium air
Battery, including aluminium alloy cathode, air cathode and electrolyte.
As a preferred technical solution of the present invention, the aluminium alloy cathode raw material includes with the following group by weight percentage
Point: Al 2.0-8.0%, Pb 0.02-0.08%, In 0.05-0.1%, Ga 0.01-0.1%, Mg 0.1-2.0%.
As a preferred technical solution of the present invention, the air cathode is by waterproof ventilative layer, Catalytic Layer and conductive collection
Fluid composition, the Catalytic Layer are made of catalyst and its carrier, and catalyst is manganese dioxide-catalyst.
As a preferred technical solution of the present invention, the electrolyte raw material includes following components by weight percentage:
NaOH solution 10.0-12.0%, electrolyte corrosion inhibitor 1.0-5.0%.
As a preferred technical solution of the present invention, the electrolyte corrosion inhibitor raw material includes following by weight percentage
Component: amion acetic acid 0.01-0.04%, phenyl trimethicone ammonium chloride 0.01-0.03%, DL alanine 0.02-0.04%, NaF
0.2-0.4%、Na2SO4 0.1-0.3%。
Compared with prior art, the beneficial effects of the present invention are: this aluminium-air cell electrolyte and aluminium-air cell, lead to
Cross and electrolyte corrosion inhibitor be added in the electrolytic solution aluminium hydroxide is promoted to be precipitated, avoid aluminium hydroxide cannot be discharged in time and
It is passivated anode, guarantees that the battery can work normally, aluminium alloy cathode is made of Al, Pb, In, Ga, Mg, and open circuit potential is obvious
Decline, self-corrosion reduce, and electrode surface erosion is uniformly dissolved, and are not easy to form passivating film in alkaline medium, and anode polarization is reduced,
Using manganese dioxide as catalyst in air cathode, excellent catalytic effect, price is excellent honest and clean, has broad application prospects,
Electrolyte corrosion inhibitor is made of amion acetic acid, phenyl trimethicone ammonium chloride, DL alanine, to the inhibitory effect of metallic aluminium corrosion
It is good, the corrosion efficiency of metallic aluminium is greatly reduced, the performance of the aluminium-air cell is improved.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment one
A kind of aluminium-air cell electrolyte and aluminium-air cell, including aluminium alloy cathode, air cathode and electrolyte.
Aluminium alloy cathode raw material includes following components by weight percentage: Al 2.0%, Pb 0.02%, In 0.05%, Ga
0.01%、Mg 0.1%。
Air cathode is made of waterproof ventilative layer, Catalytic Layer and conductive current collector, and Catalytic Layer is by catalyst and its vehicle group
At catalyst is manganese dioxide-catalyst.
Electrolyte raw material includes following components by weight percentage: NaOH solution 10.0%, electrolyte corrosion inhibitor 1.0%.
Electrolyte corrosion inhibitor raw material includes following components by weight percentage: amion acetic acid 0.01%, phenyl trimethicone chlorination
Ammonium 0.01%, DL alanine 0.02%, NaF 0.2%, Na2SO4 0.1%。
In the present embodiment, electrolyte corrosion inhibitor raw material includes following components by weight percentage: NaF 0.2%, Na2SO4
0.1%, poor to the sedimentation effect of aluminium hydroxide at this time, electrode passivation is serious.
Embodiment two
A kind of aluminium-air cell electrolyte and aluminium-air cell, including aluminium alloy cathode, air cathode and electrolyte.
Aluminium alloy cathode raw material includes following components by weight percentage: Al 3.0%, Pb 0.03%, In 0.06%, Ga
0.02%、Mg 0.2%。
Air cathode is made of waterproof ventilative layer, Catalytic Layer and conductive current collector, and Catalytic Layer is by catalyst and its vehicle group
At catalyst is manganese dioxide-catalyst.
Electrolyte raw material includes following components by weight percentage: NaOH solution 11.0%, electrolyte corrosion inhibitor 2.0%.
Electrolyte corrosion inhibitor raw material includes following components by weight percentage: amion acetic acid 0.02%, phenyl trimethicone chlorination
Ammonium 0.02%, DL alanine 0.03%, NaF 0.3%, Na2SO4 0.2%。
In the present embodiment, electrolyte corrosion inhibitor raw material includes following components by weight percentage: amion acetic acid 0.02%, benzene
Base trimethyl ammonium chloride 0.02%, DL alanine 0.03%, it is poor to the corrosion-suppressing effect of aluminium at this time.
Embodiment three
A kind of aluminium-air cell electrolyte and aluminium-air cell, including aluminium alloy cathode, air cathode and electrolyte.
Aluminium alloy cathode raw material includes following components by weight percentage: Al 7.0%, Pb 0.07%, In 0.08%, Ga
0.08%、Mg 0.9%。
Air cathode is made of waterproof ventilative layer, Catalytic Layer and conductive current collector, and Catalytic Layer is by catalyst and its vehicle group
At catalyst is manganese dioxide-catalyst.
Electrolyte raw material includes following components by weight percentage: NaOH solution 11.0%, electrolyte corrosion inhibitor 4.0%.
Electrolyte corrosion inhibitor raw material includes following components by weight percentage: amion acetic acid 0.03%, phenyl trimethicone chlorination
Ammonium 0.02%, DL alanine 0.03%, NaF 0.2%, Na2SO4 0.2%。
In the present embodiment, aluminium alloy cathode raw material includes following components by weight percentage: Al 7.0%, Pb 0.07%, In
0.08%, Ga 0.08%, Mg 0.9%, the self-corrosion of the battery is substantially reduced at this time.
Example IV
A kind of aluminium-air cell electrolyte and aluminium-air cell, including aluminium alloy cathode, air cathode and electrolyte.
Aluminium alloy cathode raw material includes following components by weight percentage: Al2.0-8.0%, Pb0.08%, In0.1%,
Ga0.1%、Mg2.0%。
Air cathode is made of waterproof ventilative layer, Catalytic Layer and conductive current collector, and Catalytic Layer is by catalyst and its vehicle group
At catalyst is manganese dioxide-catalyst.
Electrolyte raw material includes following components by weight percentage: NaOH solution 12.0%, electrolyte corrosion inhibitor 5.0%.
Electrolyte corrosion inhibitor raw material includes following components by weight percentage: amion acetic acid 0.04%, phenyl trimethicone chlorination
Ammonium 0.03%, DL alanine 0.04%, NaF 0.4%, Na2SO4 0.3%。
In the present embodiment, electrolyte corrosion inhibiter raw material includes following components by weight percentage: NaF 0.4%, Na2SO4
0.3%, the sedimentation effect of aluminium hydroxide is good at this time, the battery stable working performance.
The present invention promotes aluminium hydroxide to precipitate by the way that electrolyte corrosion inhibitor is added in the electrolytic solution, avoids hydroxide
Aluminium cannot be discharged in time and be passivated anode, guarantee that the battery can work normally, aluminium alloy cathode is by Al, Pb, In, Ga, Mg
Composition, open circuit potential are decreased obviously, and self-corrosion reduces, and electrode surface erosion is uniformly dissolved, is not easy to be formed in alkaline medium blunt
Change film, anode polarization is reduced, and using manganese dioxide as catalyst in air cathode, excellent catalytic effect, price is excellent honest and clean, has
Wide application prospect, electrolyte corrosion inhibitor is made of amion acetic acid, phenyl trimethicone ammonium chloride, DL alanine, to metal
The inhibitory effect of aluminium corrosion is good, greatly reduces the corrosion efficiency of metallic aluminium, improves the performance of the aluminium-air cell.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of aluminium-air cell electrolyte and aluminium-air cell, it is characterised in that: including aluminium alloy cathode, air cathode and
Electrolyte.
2. a kind of aluminium-air cell electrolyte according to claim 1 and aluminium-air cell, it is characterised in that: the aluminium
Alloy anode raw material includes following components by weight percentage: Al 2.0-8.0%, Pb 0.02-0.08%, In 0.05-0.1%,
Ga 0.01-0.1%、Mg 0.1-2.0%。
3. a kind of aluminium-air cell electrolyte according to claim 1 and aluminium-air cell, it is characterised in that: the sky
Gas anode is made of waterproof ventilative layer, Catalytic Layer and conductive current collector, and the Catalytic Layer is made of catalyst and its carrier, catalysis
Agent is manganese dioxide-catalyst.
4. a kind of aluminium-air cell electrolyte according to claim 1 and aluminium-air cell, it is characterised in that: the electricity
Solve liquid raw material includes following components by weight percentage: NaOH solution 10.0-12.0%, electrolyte corrosion inhibitor 1.0-5.0%.
5. a kind of aluminium-air cell electrolyte according to claim 4 and aluminium-air cell, it is characterised in that: the electricity
Solve liquid corrosion inhibiter raw material includes following components by weight percentage: amion acetic acid 0.01-0.04%, phenyl trimethicone ammonium chloride
0.01-0.03%, DL alanine 0.02-0.04%, NaF 0.2-0.4%, Na2SO4 0.1-0.3%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304960.5A CN110165339A (en) | 2018-04-08 | 2018-04-08 | A kind of aluminium-air cell electrolyte and aluminium-air cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304960.5A CN110165339A (en) | 2018-04-08 | 2018-04-08 | A kind of aluminium-air cell electrolyte and aluminium-air cell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172562A (en) * | 2020-01-20 | 2020-05-19 | 镇江慧诚新材料科技有限公司 | Preparation method of fuel aluminum for aluminum-air battery |
| CN113078390A (en) * | 2021-03-26 | 2021-07-06 | 中南大学 | Application of cyclic ether with symmetrical structure in aqueous alkaline electrolyte |
| CN113363628A (en) * | 2021-06-03 | 2021-09-07 | 中南大学 | Electrolyte for aluminum air battery and preparation method thereof |
| CN113517499A (en) * | 2021-05-25 | 2021-10-19 | 西北大学 | Flexible aluminum air battery based on PVA/KC-KOH composite gel electrolyte |
-
2018
- 2018-04-08 CN CN201810304960.5A patent/CN110165339A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172562A (en) * | 2020-01-20 | 2020-05-19 | 镇江慧诚新材料科技有限公司 | Preparation method of fuel aluminum for aluminum-air battery |
| CN113078390A (en) * | 2021-03-26 | 2021-07-06 | 中南大学 | Application of cyclic ether with symmetrical structure in aqueous alkaline electrolyte |
| CN113517499A (en) * | 2021-05-25 | 2021-10-19 | 西北大学 | Flexible aluminum air battery based on PVA/KC-KOH composite gel electrolyte |
| CN113363628A (en) * | 2021-06-03 | 2021-09-07 | 中南大学 | Electrolyte for aluminum air battery and preparation method thereof |
| CN113363628B (en) * | 2021-06-03 | 2022-06-24 | 中南大学 | Electrolyte for aluminum-air battery and preparation method thereof |
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Application publication date: 20190823 |