CN217387308U - Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges - Google Patents
Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges Download PDFInfo
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- CN217387308U CN217387308U CN202220693700.3U CN202220693700U CN217387308U CN 217387308 U CN217387308 U CN 217387308U CN 202220693700 U CN202220693700 U CN 202220693700U CN 217387308 U CN217387308 U CN 217387308U
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Abstract
Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges include: an aluminum electrode taking foamed aluminum as a negative electrode, a load, an air electrode, a solid electrolyte taking agar as a curing agent, and a shell; the air electrode and the aluminum electrode are arranged at the electrodes at two sides of the solid electrolyte; the load is arranged at the conductive interface of the aluminum electrode and the air electrode through a lead; the shell wraps the aluminum electrode, the air electrode and the agar solid electrolyte. Compared with the prior art, compared with the defects of small reaction area and low reaction rate of the traditional aluminum cathode material, the invention takes the foamed aluminum and the foamed nickel as the anode and the cathode of the battery, thereby increasing the reaction area and accelerating the reaction rate; in addition, compared with the liquid electrolyte of the traditional battery, the solid electrolyte of the invention is convenient for molding and can protect the environment to the maximum extent; in addition, the invention is also combined with a catalyst manganese dioxide, thereby accelerating the reaction efficiency.
Description
Technical Field
The invention belongs to the field of energy storage, and particularly relates to a novel aluminum-air battery, a vehicle-mounted mobile charging pile and a charging treasure.
Background
From the 60 s of the 20 th century to the present, researches on the performance, the structure and the like of the aluminum-air battery have achieved certain research results: experiments prove that the practical specific energy of the aluminum-air battery is as high as 300-400 Wh/kg. In addition, the research on the aluminum-air battery in recent decades also widens the application field of the aluminum-air battery: the aluminum air battery has a new trend of application in various aspects such as military portable power supplies, underwater power supplies, standby power supplies and the like, particularly in the fields of vehicle-mounted mobile charging piles, charging banks and the like, and has a wide application prospect. However, despite the progress made in aluminum air cell research, aluminum cells still have many drawbacks to be solved or improved: can not be repeatedly charged and discharged; the aluminum electrode is replaced, so that the operation is not very convenient; the specific power is low, and voltage hysteresis is easy to cause; by-products are generated, and electrochemical reaction is inhibited. Therefore, a new mode needs to be explored, the research and development of the aluminum-air battery are combined with the application, the limitation of the electricity cost factor of the aluminum-air battery is broken through, and the aluminum-air battery is widely applied.
According to the relevant literature, the metal aluminum negative electrode, the air electrode, the electrolyte and the catalyst adopted by the air battery in the prior art have the following defects:
the reversibility of the metal aluminum cathode is poor, deep discharge cannot be carried out, and the actual energy density is far lower than the theoretical value. During the discharging process, insoluble alumina is continuously generated by the cathode to cover the surface of the aluminum electrode, so that the aluminum electrode is passivated, the deep discharging process is hindered, and the capacity of the battery is reduced. In-Jun Park research finds that hydrogen evolution corrosion is particularly strong In alkaline electrolyte, and the capacity and the discharge efficiency of the battery are obviously reduced.
The air cathode of the conventional structure in the air electrode has large polarization resistance, and is difficult to meet high-power output. Zhang Yu is mentioned in the "research progress of anode, air cathode and electrolyte material of aluminum air battery", and the overpotential of air electrode in metal air battery is the main part causing energy loss, so it is the key factor determining battery performance.
Electrolytes, quasi-solid and solid electrolytes may contribute to improved safety and flexible battery construction in various forms of battery research, but are generally hindered by reduced ionic conductivity and poor contact with electrodes. It was found that the low solubility of oxygen in aqueous solutions is a major obstacle for oxygen reduction and batteries. In order to overcome the defects of the aqueous electrolyte, Jiaxinglang adopts the agar gel electrolyte to replace the aqueous electrolyte in the 'influence of agar on the performance of the gel electrolyte magnesium air battery' to prepare the environment-friendly agar gel electrolyte which is used as the electrolyte of the magnesium air battery.
The reaction of the catalyst, the anode ORR and the OER of the aluminum-air battery occurs in a solid-liquid-gas three-phase interface, the reaction mechanism is complex, and the reaction kinetics is slow. The high-efficiency catalyst such as a noble metal catalyst has the disadvantages of resource scarcity, high cost, single catalytic activity and insufficient stability, and the commercial application of the aluminum air battery is severely limited. Sun Yan' aluminium air cell cathode catalyst MnO 2 The research on the preparation and properties of (A) shows that MnO is 2 The single catalyst performs best. The capacity density and energy density of the battery manufactured by the method are the maximum at 20mA discharge current, and are 1368Ah/kg and 2225Wh/kg respectively.
Prior art, as in chinese patent application: publication No.: CN103515676A discloses an all-solid-state separable aluminum-air battery structure, which comprises a polymer alkaline gel electrolyte storage layer, a porous aluminum anode, an anode support, a gel air electrode, a housing, a cover plate and a fastening bolt. The polymer alkaline gel electrolyte storage layer and the porous aluminum anode are embedded on an anode support provided with a current collector, and the gel air electrode covers the porous aluminum anode, is completely arranged in the battery shell and is fixed with the cover plate through a fastening bolt. Wherein the anode support can slide in the shell and is positioned by the positioning ball. The polymer alkaline gel electrolyte reserve layer and the porous aluminum anode used in the invention are replaceable parts, and can be mechanically replaced after the battery is discharged. Compared with other aluminum-air batteries, the aluminum-air battery has strong leakage-proof function, and reduces the serious side reaction and hydrogen evolution phenomena in the conventional aluminum-air battery
The notice number is: CN205944350U discloses an aluminum-air battery, which comprises a plurality of aluminum-air battery cells, wherein each aluminum-air battery cell consists of: the catalytic air cathode plate comprises an air guide opening arranged on the outer side of the supporting shell, a water inlet and a water outlet are arranged on the inner side or the outer side of the supporting shell, an electrolyte circulating system is connected between the water inlet and the water outlet, the catalytic air cathode plate comprises a conductive framework, and one side or two sides of the conductive framework are coated with carbon materials consisting of activated carbon and/or graphite, catalysts and binders.
Publication No.: CN109494431A discloses a bendable flexible aluminum-air battery, which is characterized in that the flexible aluminum-air battery comprises an aluminum alloy anode (1), an alkaline hydrogel electrolyte (2), an air cathode (3) using a composite catalyst, and a cathode current collector (4) laminated in sequence from inside to outside.
Publication No.: CN206023331U discloses a portable green energy-conserving battery charging outfit, its characterized in that, portable green energy-conserving battery charging outfit's shell is the cuboid, divide into the triplex: the shell upper plate is covered on the shell frame and is fixed with the shell bottom plate; the upper plate of the shell is provided with a plurality of vent holes, the frame of the shell is provided with a USB slot, and the bottom plate of the shell is a solid flat plate used for supporting the battery main body and the circuit board; the portable green energy-saving charging equipment is internally provided with a battery wrapped by insulating kraft paper, the cathode of the battery is oxygen in the air, foam nickel coated with a manganese dioxide catalyst on one surface is used as a carrier of the oxygen, the anode is a waste aluminum sheet, the foam nickel coated with the manganese dioxide catalyst is attached to the waste aluminum sheet, and the manganese dioxide catalyst is in contact with the waste aluminum sheet; a lead respectively led out from the foamed nickel and the waste aluminum sheet extends out of the insulating kraft paper, the lead led out from the foamed nickel is connected with a GND pin of the low-dropout regulator module, and the lead led out from the waste aluminum sheet is connected with VCC of the low-dropout regulator module; the output end of the low-dropout regulator module is connected with the USB interface, the USB interface is embedded in the USB groove of the shell, and the low-dropout regulator module is glued on the bottom plate of the shell.
However, the above prior art does not use a porous foam electrode material to increase the reaction contact area, thereby increasing the reaction rate, or does not add a catalyst layer to the air electrode, thereby increasing the electrochemical reaction rate, increasing the discharge efficiency, or is inconvenient to form a solid electrolyte that does not use agar as a curing agent.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the prior art, the invention discloses a novel aluminum-air battery, which adopts the following technical scheme:
a novel aluminum-air cell comprising: an aluminum electrode taking foamed aluminum as a negative electrode, a load, an air electrode, a solid electrolyte taking agar as a curing agent, and a shell; it is characterized in that: the air electrode and the aluminum electrode are arranged at the electrodes at two sides of the solid electrolyte; the load is arranged at the conductive interface of the aluminum electrode and the air electrode through a lead; the shell wraps the aluminum electrode, the air electrode and the agar solid electrolyte.
Preferably: the surface of the foamed aluminum is provided with an uneven bubble surface.
Preferably: the size of the solid electrolyte taking agar as a curing agent is 3cm by 4cm by 1.5 cm; the foamed aluminum had a size of 3cm by 4 mm.
Preferably: the foamed aluminum electrode is attached to the solid electrolyte, and the foamed nickel electrode is attached to the solid electrolyte.
Preferably: the shell comprises a conductive interface and two copper double-end crocodile clamp wires, wherein the crocodile clamps at one ends of the wires respectively clamp the positive electrode and the negative electrode.
Preferably, the following components are used: the periphery of the shell is bonded and bound by a PE adhesive tape.
The utility model also discloses an on-vehicle removal fills electric pile, characterized in that: including foretell novel aluminium air cell as the energy storage part in this fills electric pile.
The utility model discloses still disclose a treasured charges, characterized in that: the charger comprises the novel aluminum-air battery as an energy storage component.
Advantageous effects
1) Loose and porous foam electrode materials are adopted to increase the reaction contact area so as to accelerate the reaction rate;
2) the air electrode is added with a catalyst layer, thereby accelerating the electrochemical reaction rate, improving the discharge efficiency and preparing the air electrode with high performance.
3) The solid electrolyte with agar as curing agent is convenient for molding and can protect environment to the utmost extent.
Drawings
Fig. 1 is a front view of an aluminum air battery with foamed aluminum as a negative electrode solid electrolyte.
Wherein: structure 1 is the foamed aluminum negative pole, and structure 2 is for the electric load, and structure 3 is the air electrode, including foamed nickel and manganese dioxide catalysis granule, and structure 4 is the solid electrolyte who uses the agar to be the curing agent, and structure 5 is battery case, and structure 6 is copper double-end alligator clip wire.
Detailed Description
A novel aluminum-air cell comprising: an aluminum electrode taking foamed aluminum as a negative electrode, a load, an air electrode, a solid electrolyte taking agar as a curing agent, and a shell; it is characterized in that: the air electrode and the aluminum electrode are arranged at the electrodes at two sides of the solid electrolyte; the load is arranged at the conductive interface of the aluminum electrode and the air electrode through a lead; the shell wraps the aluminum electrode, the air electrode and the agar solid electrolyte. The surface of the foamed aluminum is provided with an uneven bubble surface. The air electrode comprises foamed nickel and manganese dioxide catalytic particles, and the manganese dioxide catalytic particles are attached to the foamed nickel electrode in an embedded mode. The size of the solid electrolyte taking agar as a curing agent is 3cm by 4cm by 1.5 cm; the foamed aluminum is 3cm by 4mm in size; the foamed nickel electrode was 3cm by 4cm by 5mm in size. The foamed aluminum electrode is attached to the solid electrolyte, and the foamed nickel electrode is attached to the solid electrolyte. The shell comprises a conductive interface and two copper double-end crocodile clamp wires, wherein the crocodile clamps at one ends of the wires respectively clamp the positive electrode and the negative electrode. The periphery of the shell is bonded and bound by a PE adhesive tape.
The structure of the aluminum electrode, the air electrode, the electrolyte and the catalyst adopted by the invention is as follows:
1) aluminum electrode
The aluminum electrode of the invention adopts 4mm 200mm micropore foamed aluminum produced by Suzhou Kesheng and metal materials, and is cut into 3cm 4cm, and the foamed aluminum has both metal and bubble characteristics. The composite material has the characteristics of small density, strong conductivity, easy processing, easy installation, high forming precision and the like. This project proposes to adopt this novel material of foamed aluminum, directly laminates in solid electrolyte one side, increases the reaction area on surface by unevenness's bubble face, improves reaction efficiency, clears up the reaction resistance that compact oxide film brought in some degree simultaneously.
2) Air electrode
10cm 5mm foamed nickel produced by the cloud and many-honest technology is cut into 3cm 4cm size to be used as a positive electrode material, and the positive electrode material is directly attached to one side of a solid electrolyte and is a light porous material with a three-dimensional net structure, wherein the light porous material consists of porous bubbles and interconnected porous bubble walls. Besides their respective conventional properties, they also have the properties of low density, high strength, easy processing and good electrical conductivity.
3) Electrolyte
The solid electrolyte is composed of agar and sodium chloride, and has a size of 3cm 4cm 1.5cm, and two sides of the solid electrolyte are directly attached to the air electrode and the aluminum electrode respectively. The agar has wide application in food industry, pharmaceutical industry, daily chemical industry, bioengineering and other aspects, has physical and chemical properties such as coagulability, stability and the like, can form a complex with some substances, and has the characteristics of environmental protection and recyclability.
4) Catalyst and process for producing the same
High-purity micron manganese dioxide catalyst is selected and embedded into the anode in a particle form, so that the electrochemical reaction rate is accelerated, the discharge efficiency is improved, and the high-performance air electrode is prepared.
Example 1:
referring to fig. 1, the aluminum-air battery of the present invention includes: the structure 1 aluminum electrode, the structure 2 load, the structure 3 air electrode, the structure 4 agar solid electrolyte, the structure 5 shell and the structure 6 copper double-end crocodile clamp lead. The structure 3 air electrode is directly laminated on the two sides of the structure 4 electrolyte with the structure 1 aluminum electrode, the load is connected to the conductive interface of the aluminum electrode and the air electrode by a copper double-end alligator clamp wire, the aluminum electrode, the air electrode and the agar solid electrolyte are bound and fixed by the medical PE electrode, and the shell wraps the aluminum electrode, the air electrode and the agar electrolyte to make the cell into a cell to start reaction.
1) The aluminum electrode includes: 4mm by 200mm microcellular aluminum foam produced by Suzhou Kesheng and metallic materials and cut to 3cm by 4cm size with both metallic and bubble characteristics. The contact area of the surface is increased by the rugged bubble surface, the reaction efficiency is improved, and the reaction resistance brought by the compact oxide film is digested to a part of degree. Here a chemical reaction takes place: 4Al-12e - ＝4Al 3+ 。
2) The air electrode includes: 10cm 5mm nickel foam produced by the yunchong science and cut to a size of 3cm 4 cm. The foamed nickel is a light porous material with a three-dimensional net structure, which consists of cells and interconnected cell walls, and has the characteristics of low density, high strength, easy processing and good electric conduction.
3) The agar solid electrolyte comprises: agar gel and alkaline electrolyte. The size of the powder is 3cm by 4cm by 1.5cm, and the powder can be prepared from 2mol/L sodium chloride solid of Hu test brand and 2% agar powder (strength of 1400%) of Kanbeisi biological brand by adding water, boiling to 90 deg.C, pouring into a grinding tool, and cooling for molding. The process of obtaining the electrolyte belongs to the process of common knowledge, and the electrolyte is obtained by mixing the sodium chloride solid and the cabbages biological agar powder which are the existing materials, not performing chemical reaction, only physically mixing the sodium chloride solid and the cabbages biological agar powder, and then heating, boiling, pouring, cooling and forming.
4) The housing includes: the conductive interface, copper double-end alligator clip wire, wherein, should bite anodal/negative pole conductive interface and the electrically conductive one end of load respectively with the double-end alligator clip of a wire to connect positive/negative pole and load, electrically conduct.
5) The assembling and testing comprises the following steps:
assembling: cutting the purchased foamed aluminum material and foamed nickel material into cubes with the size of 3cm by 4cm, directly attaching a foamed aluminum electrode and an electrode embedded with a catalyst to two sides of a solid electrolyte, binding and fixing each structure of the battery by using a medical PE (polyethylene) adhesive tape, clamping crocodile clips at one ends of two leads on a positive electrode and a negative electrode by using two copper double-head crocodile clip leads, and finally placing the battery in a battery shell for packaging.
The specific working principle and process of the battery are as follows: the foamed aluminum cathode is prepared by carrying out chemical reaction on 4Al-12e - ＝ 4Al 3+ Loss of electrons; the foam nickel anode is subjected to a chemical reaction 30 under the action of a manganese dioxide catalyst 2 +6H 2 O ten 12e - ＝120H - Oxygen in the air is combined with water in the solid electrolyte at the joint surface of the anode and the solid electrolyte to obtain electrons; when the battery is connected with a load through a copper double-ended alligator clip wire, electrons are transferred from the negative electrode to the positive electrode to form current to supply power to the load.
And (3) testing: measuring the current of the battery to be 4-5 mA by a multimeter; the electrochemical workstation is used for introducing 10mA/cm for 2 hours 2 The voltage of the current is measured to be always stabilized at about 1.7V; the energy density of the battery was calculated from the measured data to be 2297.3 Wh/kg.
The invention creatively uses the porous foam material as the Al anode and the battery anode, uses the agar as the solid electrolyte of the curing agent, is convenient for manufacturing and molding, simultaneously reduces the environmental pollution to the utmost extent, and carries out electrochemical analysis experiments (such as multimeter test, 10mA/cm continuous for 2 hours) 2 Current measurement of voltage) to obtain data, and thus, an aluminum-air battery model with the best performance is made.
Example 2
The utility model provides an on-vehicle removal fills electric pile, characterized in that: including foretell novel aluminium air cell as the energy storage part in this fills electric pile.
Example 3
A treasured charges, characterized by: the charger baby comprises the novel aluminum-air battery as an energy storage component.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A novel aluminum-air cell comprising: an aluminum electrode taking foamed aluminum as a negative electrode, a load, an air electrode, a solid electrolyte taking agar as a curing agent, and a shell; it is characterized in that: the air electrode and the aluminum electrode are arranged on the electrodes on two sides of the solid electrolyte; the load is arranged at the conductive interface of the aluminum electrode and the air electrode through a lead; the shell wraps the aluminum electrode, the air electrode and the agar solid electrolyte.
2. The new aluminum-air battery as recited in claim 1, wherein: the surface of the foamed aluminum is provided with an uneven bubble surface.
3. The new aluminum-air battery as recited in claim 1, wherein: the size of the solid electrolyte taking agar as a curing agent is 3cm by 4cm by 1.5 cm; the foamed aluminum had a size of 3cm by 4 mm.
4. The new aluminum-air battery as recited in claim 3, wherein: the foamed aluminum electrode is attached to the solid electrolyte.
5. The new aluminum-air battery as recited in claim 1, wherein: the shell comprises a conductive interface and two copper double-end alligator clip wires, wherein one end of each wire is connected with an alligator clip to clip a positive electrode and a negative electrode respectively.
6. The new aluminum-air battery as recited in claim 1, wherein: the periphery of the shell is bonded and bound by a PE adhesive tape.
7. On-vehicle removal fills electric pile, characterized by: comprising as energy storage component the novel aluminum air cell according to any of claims 1 to 6.
8. Treasured charges, characterized by: comprising as energy storage component the novel aluminum air cell according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220693700.3U CN217387308U (en) | 2022-03-28 | 2022-03-28 | Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220693700.3U CN217387308U (en) | 2022-03-28 | 2022-03-28 | Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges |
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| Publication Number | Publication Date |
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| CN217387308U true CN217387308U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220693700.3U Active CN217387308U (en) | 2022-03-28 | 2022-03-28 | Novel aluminium air battery, on-vehicle removal fill electric pile and treasured that charges |
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| CN (1) | CN217387308U (en) |
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- 2022-03-28 CN CN202220693700.3U patent/CN217387308U/en active Active
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