Cylindrical single battery and array metal air power supply

Abstract

The utility model discloses a cylinder type battery monomer and an array metal air power supply, the battery monomer comprises an electrolyte cylinder and a first container arranged in the electrolyte cylinder, a liquid inlet of the electrolyte cylinder is communicated with a liquid inlet of the first container, a metal electrode and an air electrode are arranged in a space between the electrolyte cylinder and the first container, and the metal electrode is communicated with the air electrode. An electrolyte extracting device is arranged in the first container and is used for extracting the electrolyte from the electrolyte inlet of the electrolyte cylinder to the electrolyte outlet of the first container and then discharging the electrolyte into a space between the electrolyte cylinder and the first container. The array metal air power supply comprises a plurality of battery monomers arranged in an array mode and an electrolyte storage device, a liquid outlet of the electrolyte storage device is communicated with a liquid inlet of the electrolyte cylinder, and the plurality of battery monomers are connected in parallel. The sealing performance of the single battery is strong, the probability of electrolyte overflow and leakage can be reduced, and high-power power supply can be realized by combining a plurality of battery units into a power supply.

Description

Technical Field

[0001] The utility model belongs to the field of metal fuel cells, and in particular relates to a cylindrical battery monomer and an array metal-air power source. Background Art

[0002] Metal-air battery is an electrochemical energy storage device that uses metal as the negative electrode and air as the positive electrode to release energy through redox reaction. Compared with traditional lithium-ion batteries, metal-air batteries have higher energy density, longer service life and lower cost, so they have broad application prospects in electric vehicles, drones and other fields. In addition, my country has abundant reserves of metal mineral energy, and the main product hydroxide after battery power generation can also be generally reused. For example, aluminum hydroxide can be used as artificial sapphire, flame retardant, etc. to achieve energy recycling and reuse. When using air metal fuel cells, you only need to insert the metal electrode into the power generation unit and then inject the electrolyte to generate electricity. It is easy to carry and store in special environments such as outdoor, remote, and disaster relief, and does not require external power charging. It can be powered multiple times by replacing the metal electrode and electrolyte. For this reason, metal-air fuel cells can be used as a substitute for lithium batteries in portable power supplies. The on-board mobile power supply has the advantages of simple operation, large capacity, small size, simultaneous output of AC and DC power, and wide adaptability. It is favored by users because it can supply power normally in special environments such as outdoor, remote, and disaster relief, and the market is also expanding. However, during transportation or movement, traditional metal-air electrolytes are prone to overflow and leakage, and their high-power power supply technology is not mature and cannot meet the needs of high-power electricity use.

[0003] Chinese invention patent CN113644348B announced "a piston-injected metal-air battery and its use method", which seals the electrolyte in a sealed chamber composed of a piston cylinder and a piston rod, and injects the electrolyte into the chamber between the air cathode and the metal anode by pushing the piston rod, so that a chemical reaction occurs to generate electricity. Although the piston-injected type is easy to store and carry, and the battery can react quickly, its electrolyte storage capacity is limited, and a single air battery cannot achieve high-power power supply. Utility Model Content

[0004] In order to solve the problem of easy leakage of electrolyte in metal-air batteries in the prior art, the utility model provides a cylindrical battery cell. At the same time, in order to solve the defect that high-power power supply cannot be achieved in the prior art, the utility model also provides an array metal-air power supply based on a cylindrical battery cell.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0006] A cylindrical battery cell comprises an electrolyte cartridge, a first container is arranged in the electrolyte cartridge, a metal electrode and an air electrode are arranged in the space between the electrolyte cartridge and the first container, a liquid inlet of the electrolyte cartridge is connected with a liquid inlet of the first container, an electrolyte extraction device is arranged in the first container, and the electrolyte extraction device is used to extract electrolyte from the liquid inlet of the first container to the liquid outlet of the first container and then discharge it into the space between the electrolyte cartridge and the first container.

[0007] The utility model arranges the battery cell as a sealed cylinder structure, isolates the electrolyte externally, and extracts the electrolyte into the battery cell through the liquid inlet of the electrolyte cylinder only when in use, thereby improving the sealing performance of the device, preventing leakage of the battery cell during transportation or movement, and facilitating the disassembly and replacement of metal electrodes, and can continuously generate electricity for a long time without the need for external charging, thereby achieving a long-term supply of electricity.

[0008] Preferably, the electrolyte extraction device comprises a piston and a piston rod installed in a first container, and a first one-way valve located at the liquid inlet of the first container, and a second one-way valve is provided on the piston. By providing a one-way valve in the electrolyte extraction device of each battery cell, the interior of the pipeline is evacuated to a vacuum through the movement of the piston, and the electrolyte is extracted under the action of atmospheric pressure and enters the area where the metal electrode is located, and the electrolyte contacts the metal electrode and the air to produce a chemical reaction, converting chemical energy into electrical energy, thereby realizing power generation.

[0009] Preferably, a handle is provided at the top end of the piston rod.

[0010] Preferably, in order to promote the flow of electrolyte and enable sufficient contact and reaction between the electrolyte and the electrodes, the air electrode and / or the metal electrode adopts a cylindrical hollow structure.

[0011] An array metal-air power source includes a cylindrical battery cell as described in the above scheme, wherein the battery cells are multiple and arranged in an array, and also includes an electrolyte reservoir for providing electrolyte, the liquid outlet of the electrolyte reservoir is connected to the liquid inlet of the electrolyte cylinder through a first pipe, and a control valve is provided on the first pipe, and the multiple battery cells are connected in parallel.

[0012] The utility model adopts an array mode combining multiple battery units to achieve high-power power supply and ensure the stability and continuity of outdoor power use. The electrolyte is replenished for the battery cells through the electrolyte reservoir to make the metal electrodes fully react, which can continuously generate electricity for a long time without external charging, greatly improving the endurance of outdoor electrical equipment.

[0013] Preferably, the electrolyte storage is an electrolyte tank. The control valve is a hydraulic valve, a solenoid valve or a manual valve. By providing an electrolyte tank, the sealing is increased, and the first pipeline on the electrolyte tank is connected to the sealed battery cell, so that the problem of electrolyte leakage due to complex road conditions during transportation or movement can be avoided.

[0014] Preferably, there are 9 battery cells arranged in a 3*3 array. By setting the number of rows and columns of battery cells to be the same, the space can be reasonably distributed and the spatial structure can be optimized.

[0015] The utility model is easy and quick to operate. When in use, it is only necessary to extract the electrolyte into the battery cell and allow the metal electrode to contact the electrolyte, so that it can complete the tasks of communication, lighting and rescue when responding to emergencies in outdoor, wild, disaster and other environments. The structure is simple and easy to produce and assemble, and it is convenient for modular production, which is conducive to the application and promotion of metal air power sources, and has a wide range of applications, and can be commonly used for vehicle-mounted power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a cross-sectional view of a cylindrical battery cell of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of an array metal air power supply of the utility model;

[0019] Figure 3 The utility model is a circuit connection diagram of an array metal air power supply.

[0020] Explanation of the reference numerals: 1. electrolyte tank, 2. battery cell, 3. first pipeline, 4. control valve, 5. first container, 6. electrolyte cartridge, 7. metal electrode, 8. air electrode, 9. piston, 10. first one-way valve, 11. second one-way valve, 12. piston rod, 13. handle, 14. liquid outlet of the first container. DETAILED DESCRIPTION

[0021] like Figure 1As shown, a cylindrical battery cell provided by the utility model comprises an electrolyte cartridge 6, a first container 5 is arranged in the electrolyte cartridge 6, and a metal electrode 7 and an air electrode 8 are arranged in the space between the electrolyte cartridge 6 and the first container 5. In order to promote the flow of electrolyte, the air electrode 8 and / or the metal electrode 7 can be arranged as a cylindrical hollow structure. The liquid inlet of the electrolyte cartridge 6 is connected with the liquid inlet of the first container 5, and an electrolyte extraction device is arranged in the first container 5, and the electrolyte extraction device is used to extract the electrolyte from the liquid inlet of the first container 5 to the liquid outlet 14 of the first container and then discharge it into the space between the electrolyte cartridge 6 and the first container 5. The electrolyte extraction device comprises a piston 9 installed in the first container 5, a piston rod 12, and a first one-way valve 10 located at the liquid inlet of the first container 5, a second one-way valve 11 is arranged on the piston 9, and a handle 13 is arranged at the top of the piston rod 12.

[0022] By arranging the battery cell as a sealed cylinder structure, the sealing performance of the device is improved, and leakage of the battery cell during transportation or movement is prevented; by arranging an electrolyte extraction device to extract the electrolyte before reacting, the electrolyte is avoided from being stored in the battery cell for a long time, and the electrolyte is extracted into the battery cell through the liquid inlet of the electrolyte cylinder only when in use, and the electrolyte extraction device adopts the setting of a piston and a one-way valve, which has a simple structure and is easy to assemble and operate; by separating the metal electrode from the electrolyte extraction device, it is easy to disassemble and replace the metal electrode, and power generation can be continuously carried out for a long time without external charging, thereby realizing a long-term supply of electricity.

[0023] like Figure 2 As shown, the utility model provides an array metal air power source, including the above-mentioned cylindrical battery cell, the battery cells 2 have multiple and are arranged in an array, and also include an electrolyte reservoir for providing electrolyte. In order to increase the sealing, the electrolyte reservoir is an electrolyte tank 1. The liquid outlet of the electrolyte tank 1 is connected to the liquid inlet of the electrolyte cylinder 6 through a first pipe 3, and a control valve 4 is provided on the first pipe 3. The control valve 4 adopts one of a hydraulic valve, a solenoid valve or a manual valve. Multiple battery cells 2 are connected in parallel.

[0024] In this embodiment, Figure 3 As shown, there are 9 battery cells arranged in a 3*3 array. The 9 battery cells are connected in parallel to supply power to the outside.

[0025] The utility model adopts an array mode combining multiple battery cells. Through the parallel connection between multiple battery cells, high-power power supply can be achieved to ensure the stability and continuity of outdoor electricity use. In addition, due to the good sealing of the battery cell 2, combined with the setting of the electrolyte tank 1, the traditional electrolyte tank is replaced, reducing the probability of electrolyte overflow and leakage during transportation or movement. By setting the valves at the piston 9 and the liquid inlet of the first container 5 to a one-way valve, the internal channel of the first container 5 is evacuated to a vacuum, which facilitates the extraction of electrolyte.

[0026] In this embodiment, Figure 2 As shown, when in use, the positive and negative electrodes of the 9 battery cells connected in parallel are connected to the outside, the control valve 4 is opened, and the handle 13 is pulled to lift up or push down to drive the piston 9. In the initial state, the piston 9 is pressed to the bottom of the first container 5. During the downward pressing of the piston 9, the air pressure in the area below the piston 9 in the first container 5 increases, and the first one-way valve 10 is closed due to the high air pressure, and the second one-way valve 11 is opened due to the high air pressure. The air in the area below the piston in the first container 5 is discharged upward to the upper part of the piston 9 through the second one-way valve 11, until the piston 9 reaches the bottom of the first container 5, and the air in the area below the piston 9 in the first container 5 is completely discharged; then the handle 13 is pulled up, and the piston 9 moves upward. At this time, the area below the piston 9 in the first container 5 is vacuum, and the first one-way valve 10 is opened due to the external atmospheric pressure, and the second one-way valve 11 is opened. Affected by the external atmospheric pressure, it is in a closed state, so the electrolyte enters the area below the piston 9 from the electrolyte tank; push the handle 13 down again, the piston 9 moves downward, and the first one-way valve 10 is closed, the second one-way valve 11 is opened, and the electrolyte enters the area above the piston 9 from the cavity below the piston 9 through the second one-way valve 11; pull and push the handle 13 cyclically, and continuously extract the electrolyte to the area above the piston 9 until the electrolyte reaches the liquid outlet 14 at the top of the first container 5, and flows out from the liquid outlet 14, and flows into the middle area between the first container 5 and the electrolyte cylinder 6, contacts with the metal electrode 7 and the air electrode 8 and undergoes a chemical reaction, converting chemical energy into electrical energy, and supplying power to the external load through the parallel battery cells 2.

[0027] The utility model is easy and quick to operate. When in use, it is only necessary to extract the electrolyte into the battery cell and allow the electrolyte to contact the metal electrode and the air electrode, so that tasks such as communication, lighting and rescue in response to emergencies in outdoor, wild, disaster and other environments can be completed. The structure is simple and easy to produce and assemble, and it is convenient for modular production, which is conducive to the application and promotion of metal-air power sources, and has a wide range of applications, and can be commonly used for vehicle-mounted power supply.

[0028] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims

1. A cylindrical battery cell, characterized in that: It comprises an electrolyte cartridge, a first container is arranged in the electrolyte cartridge, a metal electrode and an air electrode are arranged in the space between the electrolyte cartridge and the first container, a liquid inlet of the electrolyte cartridge is connected with a liquid inlet of the first container, an electrolyte extraction device is arranged in the first container, and the electrolyte extraction device is used to extract electrolyte from the liquid inlet of the electrolyte cartridge to the liquid outlet of the first container and then discharge it into the space between the electrolyte cartridge and the first container.

2. A cylindrical battery cell according to claim 1, characterized in that: The electrolyte extraction device comprises a piston and a piston rod installed in a first container, and a first one-way valve located at the liquid inlet of the first container, and a second one-way valve is arranged on the piston.

3. A cylindrical battery cell according to claim 2, characterized in that: The top end of the piston rod is provided with a handle.

4. A cylindrical battery cell according to claim 1, characterized in that: The air electrode and / or metal electrode adopts a cylindrical hollow structure.

5. An array metal air power source, characterized in that: It comprises a cylindrical battery cell as described in any one of claims 1 to 4, wherein the battery cells are in plurality and arranged in an array, and further comprises an electrolyte reservoir for providing electrolyte, wherein the liquid outlet of the electrolyte reservoir is connected to the liquid inlet of the electrolyte cylinder through a first pipe, a control valve is provided on the first pipe, and the plurality of battery cells are connected in parallel.

6. The array metal air power source according to claim 5, characterized in that: The electrolyte storage is an electrolyte tank.

7. The array metal air power source according to claim 5, characterized in that: There are 9 battery cells, which are arranged in a 3*3 array.

8. The array metal air power source according to claim 5, characterized in that: The control valve is a hydraulic valve, a solenoid valve or a manual valve.

Images