CN109494431A - Flexible aluminium air battery of flexible - Google Patents
Flexible aluminium air battery of flexible Download PDFInfo
- Publication number
- CN109494431A CN109494431A CN201811339778.XA CN201811339778A CN109494431A CN 109494431 A CN109494431 A CN 109494431A CN 201811339778 A CN201811339778 A CN 201811339778A CN 109494431 A CN109494431 A CN 109494431A
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- flexible
- aluminium
- air cell
- air
- composite catalyst
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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
A flexible aluminum-air battery capable of being bent is formed by sequentially laminating an aluminum alloy anode, an alkaline hydrogel electrolyte, an air cathode using a composite catalyst and a cathode current collector from inside to outside; the method comprises the steps of firstly clamping the manufactured aluminum alloy anode in the middle, sequentially placing the alkaline hydrogel electrolyte, the air cathode using the composite catalyst and the cathode current collector from the inner side to the outer side, and fixing the alkaline hydrogel electrolyte, the air cathode using the composite catalyst and the cathode current collector by using a clamp, so that the influence on the overall performance of the battery due to interface contact is avoided as much as possible; the invention can prevent surface passivation by clamping the aluminum alloy anode in the middle, and can increase the oxygen adsorption area by connecting one aluminum alloy anode with two air cathodes, thereby improving the oxygen adsorption rate and the redox activity; the bendable flexible aluminum-air battery provided by the invention solves the problem that the traditional rigid structure energy supply equipment cannot meet the actual energy supply requirement of the next generation of flexible wearable electronic devices, and is expected to realize large-scale application.
Description
Technical field
The present invention relates to aluminium-air cell technical fields, and in particular to a kind of flexible flexible aluminium-air cell.
Background technique
The appearance of flexible electronic product is considered as the revolutionary event to cause great concern.Flexible electronic product has just
Take, be light, is flexible, wearable advantageous characteristic, promote different field, different function electronic equipment development.Flexibility can
It dresses demand of the development of electronic equipment to high-energy density and the flexible power supply of durability to increase sharply, flexible energy storage turns
System is changed to have great application prospect in future market as a kind of novel power supply.
In recent years, high-performance flexible energy stores are developed and conversion equipment has been achieved for relatively good progress, but still
So there are many technological challenges, the application for flexible electronic device, stable chemical property is for soft under repeated external force
Property metal-air battery is vital.Many work are still dedicated to exploring effective electrode/electrolyte material and more excellent
The battery structure of choosing, to develop the flexible power supply with better chemical property to be used for flexible electronic product energy supply.
Summary of the invention
For current flexible power source development, the purpose of the present invention is to provide a kind of flexible soft
Property aluminium-air cell, not only can satisfy micro devices and wearable electronic to the need of flexible, ultralight, ultra-thin energy storage device
It asks, while following purpose may be implemented by this design: first is that aluminium electrode, which is clipped in the middle, can prevent surface passivation, second is that one
A aluminium electrode is connected with two air electrodes, can increase Oxygen Adsorption area, to improve the oxygen rate of adsorption and redox
Activity；The flexible flexible aluminium-air cell has great development value and is expected to realize large-scale application.
In order to reach the goals above, the present invention adopts the following technical scheme:
A kind of flexible flexible aluminium-air cell, the flexible aluminium-air cell is from interior outward successively including aluminium alloy
Anode (1), basic hydrogel electrolyte (2), using composite catalyst air cathode (3) and cathode current collector (4) stacking and
At.
The aluminum alloy anode material is made of aluminium, magnesium, gallium and phosphide element, and each component accounts for aluminum alloy anode all material
The mass fraction of gross mass are as follows: aluminium 97~99%, magnesium 0.5~1%, gallium 0.1~1.0% and indium 0.1~1.0%, preferably aluminium
98%, magnesium 1%, gallium 0.4% and indium 0.6%.
The basic hydrogel electrolyte by gelatin polymer and be added composite corrosion inhibitor alkaline electrolyte mixing and
At wherein mass fraction of the corrosion inhibiter in alkaline electrolyte is 5%~8%, preferably inhibition agent content 6%.
The gelatin polymer be polyvinyl alcohol (PVA) and polyethylene oxide (PEO), wherein PVA:PEO mass ratio be
10:1~5:1, preferably 10:1.The composite corrosion inhibitor is mixed by sodium stannate and casein, sodium stannate and casein
Molal weight ratio is 1:1.
The alkaline electrolyte be NaOH or KOH solution, wherein the molar concentration of NaOH solution or KOH solution be 2~
4mol/L, preferably 4mol/L.
Described air cathode (3) its composite catalyst using composite catalyst is by mixing sulfur graphite alkene and manganese dioxide group
At wherein mixing sulfur graphite alkene to account for the mass fraction of composite catalyst is 5~15%, manganese dioxide accounts for the quality point of composite catalyst
Number is 10~30%, wherein preferably mixing sulfur graphite alkene content is 5%, manganese dioxide content is 15%.
The cathode current collector is made of nickel screen material.
After electrode material preparation is completed, an aluminum alloy anode is used to be electrolysed by left and right sides basic hydrogel
Matter is connected with two using the air cathode of composite catalyst, and conducting wire adheres to electrode surface, electrode and electricity by conductive tape
Solution matter is connected, and external both ends are bound by conductive tape or clamped with clip, guarantees that electrolyte well connects with point pole interface
Touching, to avoid because interfacial contact influences battery overall performance.To guarantee surface simultaneously there are gap, oxygen can enter sky
The catalyst layer of gas electrode interior.
Compared to the prior art, the invention has the following advantages that
(1) a kind of flexible flexible aluminium-air cell of the present invention, solving conventional rigid structure powering device can not expire
The actual demand of foot generation flexible wearable electronic device energy supply.
(2) it is improved by battery structure, the aluminum alloy anode for the flexible aluminium-air cell designed is sandwiched among battery
Aluminium anodes surface passivation can be effectively prevented, so that electrode activity enhances, battery performance is promoted.
(3) it is improved by battery structure, the flexible aluminium-air cell designed uses an aluminum alloy anode and two skies
Gas cathode is connected, and the increasing of Oxygen Adsorption area is twice, and the air electrode oxygen rate of adsorption and redox active are obviously improved.
Detailed description of the invention
Fig. 1 is the structure chart of the flexible flexible aluminium-air cell of the present invention.
Fig. 2 is the flexible flexible aluminium-air cell performance test figure of the present invention.
Fig. 3 is the flexible flexible aluminium-air cell of the present invention and fine aluminium air cell discharge performance comparison diagram.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is described in further details.
As shown in Figure 1, a kind of flexible flexible aluminium-air cell of the present invention, the flexible aluminium-air cell is from interior past
It outside successively include aluminum alloy anode (1), basic hydrogel electrolyte (2), air cathode (3) and cathode using composite catalyst
Collector (4) is laminated.
As the preferred embodiment of the present invention, the aluminum alloy anode material is made of aluminium, magnesium, gallium and phosphide element,
Each component accounts for the mass fraction of aluminum alloy anode all material gross mass are as follows: and aluminium 97~99%, magnesium 0.5~1%, gallium 0.1~
1.0% and indium 0.1~1.0%, more preferably aluminium 98%, magnesium 1%, gallium 0.4% and indium 0.6%.
As the preferred embodiment of the present invention, the basic hydrogel electrolyte is by gelatin polymer and is added compound
The alkaline electrolyte of corrosion inhibiter mixes, and wherein mass fraction of the corrosion inhibiter in alkaline electrolyte is 5%~8%, more excellent
It is selected as inhibition agent content 6%.
As the preferred embodiment of the present invention, the gelatin polymer is polyvinyl alcohol (PVA) and polyethylene oxide
(PEO), wherein PVA:PEO mass ratio is 10:1~5:1, preferably 10:1.The composite corrosion inhibitor is by sodium stannate and junket egg
White to mix, sodium stannate and casein molal weight ratio are 1:1.
As the preferred embodiment of the present invention, the alkaline electrolyte is NaOH or KOH solution, wherein NaOH solution
Or the molar concentration of KOH solution is 2~4mol/L, more preferably 4mol/L.
As the preferred embodiment of the present invention, described air cathode (3) its composite catalyst using composite catalyst
It is formed by mixing sulfur graphite alkene and manganese dioxide, wherein mixing sulfur graphite alkene to account for the mass fraction of composite catalyst is 5~15%, dioxy
Changing manganese to account for the mass fraction of composite catalyst is 10~30%, wherein more preferably mixing sulfur graphite alkene content is 5%, manganese dioxide
Content is 15%.
As the preferred embodiment of the present invention, the cathode current collector is made of nickel screen material.
Specific assemble method is shown in Figure 1, is electrolysed using an aluminum alloy anode 1 by left and right sides basic hydrogel
Matter 2 is connected with two using the air cathode 3 of composite catalyst, and the conducting wire of external circuitry adheres to aluminium alloy by conductive tape
Anode 1 and using composite catalyst 3 surface of air cathode, two electrodes of anode and cathode respectively with basic hydrogel electrolyte
It is connected, external both ends are bound by conductive tape or clamped with clip, guarantee basic hydrogel electrolyte and anode and yin
The electrode interface of pole two well contacts, to avoid because interfacial contact influences battery overall performance.To guarantee that surface is stayed simultaneously
There is gap, oxygen can enter the catalyst layer inside air electrode.
The flexible flexible aluminium-air cell that preparation is completed carries out discharge test, different electric currents under 90-degree bent
As shown in Fig. 2, discharge current density increases, cell power density increases effective voltage and power density curve under density case
Greatly, maximum power density can reach 109.8mW cm-2, compared with existing aluminium-air cell, flexibility aluminium air of the present invention
Battery effective operating voltage with higher and power density.
As shown in figure 3, for the flexible flexible aluminium-air cell of the present invention and fine aluminium air cell discharge performance comparison diagram,
The overall performance of the aluminium-air cell for the different anodes that compared.The aluminium air electricity of Al-Mg-In-Ga electrode is calculated by numerical value
The operating voltage and anode efficiency in pond are respectively up to 1.28V and 73.9%.Compared with pure Al, the anode of Al-Mg-In-Ga is imitated
Rate and fuel efficiency are improved, and are due to inhibiting gas-evolving electrodes and improving electro-chemical activity.
Above-mentioned is only with the preferred embodiment of the present invention, and protection scope of the present invention is not limited to above-mentioned case, all
The technical solution belonged under thinking of the present invention all belongs to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, various improvements and modifications may be made without departing from the principle of the present invention, these change
Into with retouching also should be protection scope of the present invention.
Claims (8)
1. a kind of flexible flexible aluminium-air cell, which is characterized in that the flexible aluminium-air cell from it is interior outward successively
Including aluminum alloy anode (1), basic hydrogel electrolyte (2), use the air cathode (3) and cathode current collector of composite catalyst
(4) it is laminated.
2. the flexible flexible aluminium-air cell of one kind according to claim 1, which is characterized in that the aluminum alloy anode
(1) material is made of aluminium, magnesium, gallium and indium, and each component accounts for the mass fraction of aluminum alloy anode all material gross mass are as follows: aluminium 97
~99%, magnesium 0.5~1%, gallium 0.1~1.0% and indium 0.1~1.0%.
3. the flexible flexible aluminium-air cell of one kind according to claim 2, which is characterized in that each component accounts for aluminium
The mass fraction of alloy anode all material gross mass are as follows: aluminium 98%, magnesium 1%, gallium 0.4% and indium 0.6%.
4. the flexible flexible aluminium-air cell of one kind according to claim 1, which is characterized in that the basic hydrogel
Electrolyte (2) is mixed by the alkaline electrolyte of gelatin polymer and addition composite corrosion inhibitor, and wherein corrosion inhibiter is in alkaline electro
Solving the mass fraction in liquid is 5%~8%；
The gelatin polymer be PVAC polyvinylalcohol and polyethylene oxide PEO, wherein the mass ratio of PVA:PEO be 10:1~
5:1；
The composite corrosion inhibitor is mixed by sodium stannate and casein, and sodium stannate and casein molal weight ratio are 1:1.
The alkaline electrolyte be NaOH solution or KOH solution, wherein the molar concentration of NaOH solution or KOH solution be 2~
4mol/L, preferably 4mol/L.
5. the flexible flexible aluminium-air cell of one kind according to claim 4, which is characterized in that the corrosion inhibiter is in alkali
Property electrolyte in mass fraction be 6%, the mass ratio of the PVA:PEO is 10:1, NaOH solution or KOH solution it is mole dense
Degree is 4mol/L.
6. the flexible flexible aluminium-air cell of one kind according to claim 1, which is characterized in that described to be urged using compound
Air cathode (3) of agent its composite catalyst is formed by mixing sulfur graphite alkene and manganese dioxide, wherein mix sulfur graphite alkene account for it is compound
The mass fraction of catalyst is 5~15%, and the mass fraction that manganese dioxide accounts for composite catalyst is 10~30%.
7. the flexible flexible aluminium-air cell of one kind according to claim 1, which is characterized in that described to mix sulfur graphite alkene
The mass fraction for accounting for composite catalyst is 5%, and the mass fraction that manganese dioxide accounts for composite catalyst is 15%.
8. the flexible flexible aluminium-air cell of one kind according to claim 1, which is characterized in that the cathode collector
Body (4) is made of nickel screen material.
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| CN201811339778.XA CN109494431B (en) | 2018-11-12 | 2018-11-12 | Flexible aluminium air battery of flexible |
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|---|---|---|---|
| CN201811339778.XA CN109494431B (en) | 2018-11-12 | 2018-11-12 | Flexible aluminium air battery of flexible |
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| CN109494431A true CN109494431A (en) | 2019-03-19 |
| CN109494431B CN109494431B (en) | 2021-11-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247137A (en) * | 2019-06-18 | 2019-09-17 | 哈尔滨工业大学 | A kind of nuclear magnetic resonance original position aluminium-air cell and its discharge test method |
| CN110534749A (en) * | 2019-08-19 | 2019-12-03 | 武汉大学 | Horizontal hydrogel Modified air cathode, microbiological fuel cell and preparation method |
| CN111342063A (en) * | 2020-03-04 | 2020-06-26 | 西北大学 | Manganese dioxide-loaded nitrogen-sulfur double-doped graphene catalyst for oxygen reduction reaction, and preparation method and application thereof |
| CN112467258A (en) * | 2020-11-25 | 2021-03-09 | 北京航空航天大学 | Preparation method of lithium-air battery based on gel electrolyte-lithium cathode integrated structure |
| CN113517499A (en) * | 2021-05-25 | 2021-10-19 | 西北大学 | Flexible aluminum air battery based on PVA/KC-KOH composite gel electrolyte |
| CN114005995A (en) * | 2021-11-01 | 2022-02-01 | 天津理工大学 | Preparation method of flexible metal electrode |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247137A (en) * | 2019-06-18 | 2019-09-17 | 哈尔滨工业大学 | A kind of nuclear magnetic resonance original position aluminium-air cell and its discharge test method |
| CN110534749A (en) * | 2019-08-19 | 2019-12-03 | 武汉大学 | Horizontal hydrogel Modified air cathode, microbiological fuel cell and preparation method |
| CN110534749B (en) * | 2019-08-19 | 2020-12-18 | 武汉大学 | Horizontal hydrogel modified air cathode, microbial fuel cell and preparation method |
| CN111342063A (en) * | 2020-03-04 | 2020-06-26 | 西北大学 | Manganese dioxide-loaded nitrogen-sulfur double-doped graphene catalyst for oxygen reduction reaction, and preparation method and application thereof |
| CN112467258A (en) * | 2020-11-25 | 2021-03-09 | 北京航空航天大学 | Preparation method of lithium-air battery based on gel electrolyte-lithium cathode integrated structure |
| CN113517499A (en) * | 2021-05-25 | 2021-10-19 | 西北大学 | Flexible aluminum air battery based on PVA/KC-KOH composite gel electrolyte |
| CN114005995A (en) * | 2021-11-01 | 2022-02-01 | 天津理工大学 | Preparation method of flexible metal electrode |
| CN114005995B (en) * | 2021-11-01 | 2023-11-10 | 天津理工大学 | Preparation method of flexible metal electrode |
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| CN109494431B (en) | 2021-11-02 |
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Effective date of registration: 20201210 Address after: 421156 weishang formation, Gongping village, Jiangkou Town, Hengnan County, Hengyang City, Hunan Province Applicant after: Liao Xiangbiao Address before: Room 11604, block B, Huajing Business Plaza, No. 20, Fenghui South Road, hi tech Zone, Xi'an City, Shaanxi Province Applicant before: XI'AN HONGJUN RUIZE NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220120 Address after: 101200 room 303-21704, No. 4, South Community, Binhe street, Pinggu District, Beijing Patentee after: Beijing Chenxi roudian enterprise management partnership (L.P.) Address before: 421156 weishang formation, Gongping village, Jiangkou Town, Hengnan County, Hengyang City, Hunan Province Patentee before: Liao Xiangbiao |
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