CN214672690U - Electric energy supply device and aircraft - Google Patents
Electric energy supply device and aircraft Download PDFInfo
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- CN214672690U CN214672690U CN202121278149.8U CN202121278149U CN214672690U CN 214672690 U CN214672690 U CN 214672690U CN 202121278149 U CN202121278149 U CN 202121278149U CN 214672690 U CN214672690 U CN 214672690U
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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
The application provides an electric energy supply device and an aircraft, which relate to the technical field of energy supply and comprise a seawater battery, wherein the seawater battery comprises an exhaust channel formed between a cathode shell and an anode, and seawater is accommodated in the exhaust channel through a first opening so as to form a potential difference between the cathode shell and the anode; a pressure gas-permeable membrane is arranged in the exhaust passage to discharge reaction gas generated when the cathode casing and the anode form electric energy through the second opening. When the pressure breathable film has more reaction gas, the accumulated reaction gas extrudes seawater to slow down or stop the electrochemical reaction between the anode and the cathode shell, so that a safety mechanism is provided for the seawater battery, and meanwhile, the more balanced reaction gas supply is obtained for the subsequent fuel battery using the reaction gas, so that the impact on the subsequent fuel battery using the reaction gas is avoided, the electric energy supply device is unstable, and the potential safety hazard is caused.
Description
Technical Field
The application relates to the technical field of energy supply, in particular to an electric energy supply device and an aircraft.
Background
The seawater cell relies on corrosive dissolution of the anodic metallic material in the seawater to provide an anodic discharge current, while the cathode relies primarily on the reduction of dissolved oxygen in the seawater on an inert gas electrode to provide a cathodic current. The most prominent characteristic of the seawater battery is that the seawater battery does not need to carry electrolyte and can use natural seawater to form electrolyte.
The existing seawater battery usually generates reaction gas while performing an electrochemical reaction using seawater as an electrolyte to generate electric energy, and supplies the reaction gas to external equipment for utilization in order to improve the utilization rate, but when the reaction gas generation rate is too high and the external equipment is difficult to be quickly utilized, the whole system is easily unstable, which causes potential safety hazards.
Disclosure of Invention
The present application aims to overcome the defects in the prior art, and provides an electric energy supply device and an aircraft to improve the potential safety hazard problem by reducing the reaction rate when the reaction gas generation rate is too fast.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in one aspect of the embodiments of the present application, there is provided an electric energy supply device, including a seawater battery, the seawater battery including a cathode housing and an anode disposed in the cathode housing, an exhaust passage being formed between the cathode housing and the anode, the exhaust passage including a first opening and a second opening in communication, seawater being received in the exhaust passage through the first opening to form a potential difference between the cathode housing and the anode; a pressure gas permeable membrane is provided in the exhaust passage to discharge a reaction gas generated when the cathode casing and the anode form a potential difference through the second opening by the pressure gas permeable membrane.
Optionally, the cathode casing is a carbon electrode casing, and the anode is an aluminum alloy electrode.
Optionally, the reaction gas includes hydrogen generated by electrochemical reaction of the carbon electrode shell and hydrogen generated by reaction of the aluminum alloy electrode and seawater.
Optionally, the first opening is used for discharging aluminum hydroxide solids generated by the reaction of the aluminum alloy electrode and seawater.
Optionally, the cathode casing is a carbon electrode casing, and the anode is a magnesium alloy electrode.
Optionally, the electric energy supply device further comprises an energy storage battery, and the energy storage battery is respectively connected with the cathode shell and the anode and is used for storing electric energy formed by the cathode shell and the anode.
Optionally, the reaction gas is hydrogen, the electric energy supply device further includes a fuel cell, the fuel cell is communicated with the exhaust passage through the second opening, an electric energy output end of the fuel cell is further connected with the energy storage cell, and the energy storage cell is further used for storing electric energy generated by the fuel cell.
Optionally, the pressure breathable membrane material is a porous teflon membrane.
Optionally, the fuel cell is communicated with the second opening through a hydrogen delivery pipe; the cathode shell and the anode are respectively connected with the energy storage battery through leads, and the lead part is positioned in the hydrogen conveying pipeline.
Optionally, the seawater batteries comprise a plurality of seawater batteries, and the plurality of seawater batteries are respectively communicated with the hydrogen conveying pipeline.
In another aspect of the embodiments of the present application, there is provided a vehicle, including a vehicle body and an electric energy supply device as described above, where the electric energy supply device is disposed on the vehicle body, and the electric energy supply device is configured to provide electric energy to the vehicle body.
The beneficial effect of this application includes:
the application provides an electric energy supply device and an aircraft, which comprise a seawater battery, wherein the seawater battery comprises a cathode shell and an anode arranged in the cathode shell, an exhaust passage is formed between the cathode shell and the anode, the exhaust passage comprises a first opening and a second opening which are communicated, and seawater is accommodated in the exhaust passage through the first opening so as to form a potential difference between the cathode shell and the anode; a pressure gas permeable membrane is provided in the exhaust passage to discharge a reaction gas generated when the cathode casing and the anode form a potential difference through the second opening by the pressure gas permeable membrane. Since the pressure gas permeable membrane has a certain gas permeation rate, when the reaction gas is rapidly generated, a large amount of reaction gas is difficult to rapidly pass through the pressure gas permeable membrane and can accumulate between the pressure gas permeable membrane and the first opening, and at the moment, seawater is correspondingly squeezed out of the exhaust passage from the first opening by virtue of the increase of the pressure between the pressure gas permeable membrane and the first opening, so that the seawater in the exhaust passage is reduced, and the electrochemical reaction between the anode and the cathode shell is slowed or stopped, thereby reducing the generation of the reaction gas. Therefore, a safety mechanism is provided for the seawater battery, meanwhile, the fuel battery which subsequently utilizes the reaction gas can also obtain relatively balanced reaction gas supply through the pressure breathable film, and the electric energy supply device is prevented from being unstable and causing potential safety hazards due to impact on the fuel battery which subsequently utilizes the reaction gas.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a cross-sectional view of an electric power supply device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an electric energy supply device according to an embodiment of the present disclosure;
fig. 3 is a second schematic structural diagram of an electric energy supply device according to an embodiment of the present application.
Icon: 110-seawater; 120-a cathode casing; 130-an anode; 131-hydrogen; 132-oxygen; 140-an exhaust channel; 141-a first opening; 142-a second opening; 150-pressure vented membrane; 160-a reactive gas; 170-aluminum hydroxide solid; 180-wire; 210-a hydrogen conveying pipeline; 220-a fuel cell; 300-energy storage battery.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. It should be noted that, in case of conflict, various features of the embodiments of the present application may be combined with each other, and the combined embodiments are still within the scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In one aspect of the embodiment of the present invention, an electric power supply apparatus is provided, which includes a seawater battery, as shown in fig. 1, the seawater battery includes a cathode casing 120 and an anode 130, wherein the cathode casing 120 has a hollow chamber, the anode 130 is located in the chamber inside the cathode casing 120, and the anode 130 and the cathode casing 120 are not in contact, so that a gap may be formed between the cathode casing 120 and the anode 130, thereby serving as an exhaust passage 140.
The exhaust passage 140 includes a first opening 141 and a second opening 142 which are communicated with each other, that is, the first opening 141 and the second opening 142 may be opened on the cathode casing 120, and the first opening 141 is communicated with the second opening 142 through the exhaust passage 140, so that, when the seawater battery is placed in the seawater 110, the seawater 110 may flow into a chamber inside the cathode casing 120 through the first opening 141 and be accommodated in the exhaust passage 140 formed between the cathode casing 120 and the anode 130, thereby forming the seawater battery with the anode 130, the cathode casing 120, and the seawater 110 as an electrolyte solution.
As shown in fig. 1 and 3, the first opening 141 may include a plurality of, for example, two first openings 141, three first openings 141, four first openings 141, and so on, and the plurality of first openings 141 are all communicated with the second opening 142 through the exhaust passage 140, and at the same time, the plurality of first openings 141 are communicated with each other, so that after the seawater 110 flows into the exhaust passage 140 through the first openings 141, as the ocean current of the seawater 110 flows, new seawater 110 enters the exhaust passage 140 through a part of the first openings 141, and the reacted seawater 110 flows out through another part of the first openings 141, so as to form the flowing seawater 110 in the exhaust passage 140, thereby continuing the electrochemical reaction of the seawater battery, and ensuring the long-term power supply of the seawater battery.
As shown in fig. 2, since the cathode casing 120 and the anode 130 are both in contact with the seawater 110, an electrochemical oxidation reaction occurs at the anode 130, i.e., the anode 130 loses electrons and generates cations, and an electrochemical reduction reaction occurs at the cathode casing 120, i.e., the cathode casing 120 receives the electrons and generates a reaction gas 160 with the seawater 110, and due to the flow of the electrons, a potential difference is formed between the anode 130 and the cathode casing 120 to generate electric energy, so that the electric energy can be stored by the subsequent energy storage battery 300 to supply electric energy to external electric equipment.
In addition, as shown in fig. 2, since the anode 130 is generally made of a relatively active metal material, when the anode 130 contacts the seawater 110, a self-corrosion phenomenon occurs at the anode 130, that is, the anode 130 and the seawater 110 chemically react to generate a part of the reaction gas 160, so that the reaction gas 160 generated in the exhaust channel 140 generally includes two parts, one part is from the reaction of the cathode housing 120 and the seawater 110, and the other part is from the reaction of the anode 130 and the seawater 110, and therefore, the exhaust channel 140 can exhaust the two parts of the reaction gas 160 together through the second opening 142, so as to facilitate the subsequent fuel cell 220 to fully utilize the reaction gas.
As shown in fig. 1, a pressure permeable membrane 150 may be further disposed in the exhaust passage 140 between the anode 130 and the cathode casing 120, that is, the pressure permeable membrane 150 is disposed between the first opening 141 and the second opening 142, so that after seawater 110 flows into the exhaust passage 140 through the first opening 141, the pressure permeable membrane 150 can block the seawater, thereby balancing the water pressure in the deep ocean when the seawater battery is in the deep ocean, and at the same time, since the pressure permeable membrane 150 is disposed between the first opening 141 and the second opening 142, the reaction gas 160 is generated during the process of generating electric energy between the cathode casing 120 and the anode 130, and at this time, since the seawater 110 is disposed between the pressure permeable membrane 150 and the first opening 141, the reaction gas 160 passes through the pressure permeable membrane 150 and then is exhausted through the second opening 142. Since the pressure gas permeable membrane 150 has a certain gas permeation rate, when the reaction gas 160 is rapidly generated, a large amount of the reaction gas 160 is difficult to rapidly pass through the pressure gas permeable membrane 150 and accumulates between the pressure gas permeable membrane 150 and the first opening 141, and at this time, the seawater 110 is pushed out of the exhaust passage 140 from the first opening 141 by the pressure increase between the pressure gas permeable membrane 150 and the first opening 141, so that the seawater 110 in the exhaust passage 140 is reduced, and the electrochemical reaction between the anode 130 and the cathode casing 120 is slowed or stopped, thereby reducing the generation of the reaction gas 160. As the reactant gas 160 is reduced, the seawater 110 enters the exhaust channel 140, and the cathode housing 120 and the anode 130 perform electrochemical reaction again, so as to provide a safety mechanism for the seawater battery, and meanwhile, the fuel battery 220 which subsequently utilizes the reactant gas 160 can also obtain relatively balanced supply of the reactant gas 160 through the pressure gas-permeable membrane 150, thereby avoiding impact on the fuel battery 220 which subsequently utilizes the reactant gas 160, which leads to instability of the electric energy supply device and potential safety hazard.
Optionally, the pressure-permeable membrane 150 is made of a porous teflon membrane.
Optionally, the cathode casing 120 may be a carbon electrode casing, an inert electrode casing, or the like, the anode 130 may be a magnesium alloy electrode, an aluminum alloy electrode (also referred to as an aluminum-based electrode), or the like, and the aluminum-based electrode is made of a rod body sintered from aluminum-based alloy powder. For further explanation of the present application, an aluminum alloy electrode is used as the anode 130, and a carbon electrode casing is used as the cathode casing 120:
as shown in fig. 1 and fig. 2, a carbon electrode shell is used as a housing, an aluminum alloy electrode is used as an anode 130 arranged in the shell, an annular exhaust channel 140 is formed between the aluminum alloy electrode and the carbon electrode shell, a first opening 141 and a second opening 142 are arranged on the carbon electrode shell, the first opening 141 is communicated with the second opening 142 at the other end of the channel through the annular exhaust channel 140, a pressure permeable membrane 150 is arranged on the annular exhaust channel 140, and the pressure permeable membrane 150 covers the cross section of the annular exhaust channel 140, so that the pressure-balancing and safety mechanism is realized. In order to fully utilize the aluminum alloy electrode and carbon electrode casing, a pressure permeable membrane 150 may also be disposed proximate to the second opening 142. When the seawater battery is placed in the seawater 110, the seawater 110 enters the annular exhaust channel 140 through the first opening 141, that is, the aluminum alloy electrode and the carbon electrode shell are respectively contacted with the seawater 110 in the exhaust channel 140, and an electrochemical oxidation reaction is carried out on the aluminum alloy electrode and the seawater 110, that is, the aluminum alloy electrode loses electrons and generates aluminum ions, Al-3e-＝Al3+Electrochemical reduction occurs at the carbon electrode shell, i.e. the carbon electrode shell receives electrons and generates hydrogen 131, 3H with seawater 110++3e-＝3/2H2Due to the flow of electrons, a potential difference is formed between the aluminum alloy electrode and the carbon electrode shell, namely, the aluminum alloy electrode and the carbon electrode shell form a galvanic couple to generate electric energy. As electrical energy is generated, hydrogen gas 131 generated at the carbon electrode casing rises from the gas exhaust passage 140 to the pressure permeable membrane 150, and then passes through the pressure permeable membrane 150 to be supplied to the subsequent fuel cell 220 through the second opening 142.
Optionally, as shown in fig. 2, in the process of generating the electrical energy, in addition to the hydrogen 131 generated by the reaction of the carbon electrode shell and the seawater 110, since the aluminum alloy electrode is relatively active, a self-corrosion phenomenon may also occur at the aluminum alloy electrode, that is, the aluminum alloy electrode may react with the seawater 110 to generate the hydrogen 131, the generated hydrogen 131 may also enter the exhaust channel 140, and rise from the exhaust channel 140 to the pressure permeable membrane 150, and then pass through the pressure permeable membrane 150 and be provided to the subsequent fuel cell 220 through the second opening 142, so that the requirement of the hydrogen 131 of the fuel cell 220 may be further met, the electrical energy output power of the fuel cell 220 may be increased, and the electrical energy supply with higher power may be conveniently achieved.
Alternatively, during the process of generating electrical energy by the aluminum alloy electrode and the carbon electrode shell, the aluminum alloy electrode loses electrons, thereby generating aluminum ions, generating aluminum hydroxide solid 170 residue through reaction with the seawater 110, in order to ensure the continuous power supply of the seawater battery for a long time, the aluminum hydroxide solid 170 residue can be discharged through the first opening 141 and the flowing seawater 110, for example, as shown in fig. 1, new seawater 110 may enter the exhaust channel 140 from the left first opening 141, the reacted seawater 110 may flow out of the seawater battery from the right first opening 141, and as the seawater 110 flows out from the right first opening 141, the residues of the aluminum hydroxide solids 170 in the seawater 110 may be driven to flow out from the right first opening 141, so as to avoid the residues of the aluminum hydroxide solids 170 from accumulating in the carbon electrode shell, which may cause slow reaction or even stop reaction, and require a complicated step of manual cleaning.
Optionally, as shown in fig. 2, in order to further improve the stability and flexibility of the power consumption device applied to the power supply apparatus, an energy storage battery 300 may be further provided, and the energy storage battery 300 is connected to the power output end of the seawater battery, so that the power generated by the seawater battery is input to the energy storage battery 300 and is stored by the energy storage battery 300, and the subsequent power consumption device can be conveniently used when power consumption is needed. That is, the positive electrode of the energy storage cell 300 is connected to the anode 130, and the negative electrode of the energy storage cell 300 is connected to the cathode casing 120, thus achieving storage of the electric energy formed between the cathode casing 120 and the anode 130. When the electric equipment needs to use electricity, the energy storage battery 300 can also output more stable current and voltage, so that the electric equipment is protected.
Optionally, when the reactant gas 160 is hydrogen 131 (as shown in fig. 2, the above two-part source hydrogen 131 may be included), the electric energy supply device further includes a fuel cell 220, and the electric energy output power of the electric energy supply device can be further increased by the fuel cell 220, so as to meet the requirement of the high-power electric equipment. Meanwhile, in order to fully utilize the hydrogen 131 generated in the seawater battery, the fuel cell 220 can be communicated with the exhaust channel 140 through the second opening 142, so that the hydrogen 131 generated in the seawater battery can be input into the fuel cell 220 through the pressure permeable membrane 150 and the second opening 142 to be used as the anode of the fuel cell 220, meanwhile, the oxygen 132 in the air can be introduced into the fuel cell 220 through the oxygen 132 separation device to generate the electric energy through the electrochemical reaction, the electric energy output end of the fuel cell 220 is connected with the energy storage battery 300, and the energy storage battery 300 can store the electric energy.
Alternatively, the fuel cell 220 may be installed on the sea surface, and in order to realize the utilization of the hydrogen 131 of the seawater cell, as shown in fig. 1 and fig. 3, the fuel cell 220 may be further communicated with the second opening 142 through the hydrogen transmission pipe 210, so that the hydrogen 131 generated in the exhaust channel 140 may pass through the pressure permeable membrane 150, enter the hydrogen transmission pipe 210 through the second opening 142, and then be input to the fuel cell 220. The cathode housing 120 and the anode 130 may be connected to the energy storage battery 300 through the wires 180, respectively, and the wires 180 may be located in the hydrogen transportation pipe 210, so that the wires 180 may be protected by the hydrogen transportation pipe 210, and the stability of the electric energy output of the electric energy supply device may be improved.
Alternatively, as shown in fig. 3, the seawater battery includes a plurality of seawater batteries, for example, two, three, four, etc., and the plurality of seawater batteries are respectively communicated with the hydrogen transportation pipe 210, thereby facilitating an electric power supply device providing a large power electric power output.
In another aspect of the embodiments of the present application, there is provided a vehicle, including a vehicle body and an electric energy supply device as described above, where the electric energy supply device is disposed on the vehicle body, and the electric energy supply device is configured to provide electric energy to the vehicle body. By arranging the pressure gas-permeable membrane 150 in the exhaust passage 140 of the seawater battery, a safety mechanism can be provided for the seawater battery, and meanwhile, the fuel battery 220 which subsequently utilizes the reaction gas 160 can also obtain relatively balanced supply of the reaction gas 160 through the pressure gas-permeable membrane 150, so that the electric energy supply device is prevented from being unstable and potential safety hazards are caused due to impact on the fuel battery 220 which subsequently utilizes the reaction gas 160. The aircraft may be a ship or a submersible, which is not limited by this application.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An electric energy supply device, characterized by comprising a seawater battery, wherein the seawater battery comprises a cathode shell and an anode arranged in the cathode shell, an exhaust channel is formed between the cathode shell and the anode, the exhaust channel comprises a first opening and a second opening which are communicated, and seawater is accommodated in the exhaust channel through the first opening to form a potential difference between the cathode shell and the anode; a pressure gas permeable membrane is provided in the exhaust passage to discharge a reaction gas generated when the cathode case and the anode form a potential difference through the second opening by the pressure gas permeable membrane.
2. The electrical energy supply of claim 1 wherein the cathode housing is a carbon electrode housing and the anode is an aluminum alloy electrode.
3. The electric power supply according to claim 2, wherein the reaction gas comprises hydrogen gas generated by electrochemical reaction of the carbon electrode casing and hydrogen gas generated by reaction of the aluminum alloy electrode with the seawater.
4. The electric power supply device according to claim 2, wherein the first opening is used for discharging aluminum hydroxide solids generated by the reaction of the aluminum alloy electrode with the seawater.
5. The electrical energy supply of claim 1, wherein the cathode casing is a carbon electrode casing and the anode is a magnesium alloy electrode.
6. The electrical energy supply device of claim 1, further comprising an energy storage battery coupled to the cathode housing and the anode, respectively, for storing electrical energy formed by the cathode housing and the anode.
7. The electrical energy supply device according to claim 6, wherein the reactant gas is hydrogen, the electrical energy supply device further comprises a fuel cell, the fuel cell is communicated with the exhaust passage through the second opening, an electrical energy output end of the fuel cell is further connected with the energy storage cell, and the energy storage cell is further used for storing electrical energy generated by the fuel cell.
8. The electric power supply device according to claim 7, wherein the fuel cell communicates with the second opening through a hydrogen delivery pipe; the cathode shell and the anode are respectively connected with the energy storage battery through leads, and the leads are partially positioned in the hydrogen delivery pipeline.
9. The electric power supply device according to claim 8, wherein the seawater battery includes a plurality of seawater batteries, and the plurality of seawater batteries are respectively communicated with the hydrogen transportation pipeline.
10. A vehicle comprising a vehicle body and an electric energy supply device according to any one of claims 1 to 9, the electric energy supply device being provided to the vehicle body for supplying electric energy to the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121278149.8U CN214672690U (en) | 2021-06-08 | 2021-06-08 | Electric energy supply device and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121278149.8U CN214672690U (en) | 2021-06-08 | 2021-06-08 | Electric energy supply device and aircraft |
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| Publication Number | Publication Date |
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| CN214672690U true CN214672690U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121278149.8U Active CN214672690U (en) | 2021-06-08 | 2021-06-08 | Electric energy supply device and aircraft |
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| CN (1) | CN214672690U (en) |
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- 2021-06-08 CN CN202121278149.8U patent/CN214672690U/en active Active
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Effective date of registration: 20230414 Address after: 201000 J, Zone B, Floor 12, Building 1, No. 399, Zhongren Road, Jiading District, Shanghai Patentee after: Shanghai Hydrogen Technology Co.,Ltd. Address before: 518100 Baotong building 1501-1502, No. 215, Baomin 1st Road, Wenya community, Xin'an street, Bao'an District, Shenzhen, Guangdong Patentee before: Shenzhen Haiwen Technology Co.,Ltd. |
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