CN110707343A - Aluminum air fuel battery system - Google Patents

Aluminum air fuel battery system Download PDF

Info

Publication number
CN110707343A
CN110707343A CN201910904804.7A CN201910904804A CN110707343A CN 110707343 A CN110707343 A CN 110707343A CN 201910904804 A CN201910904804 A CN 201910904804A CN 110707343 A CN110707343 A CN 110707343A
Authority
CN
China
Prior art keywords
aluminum
communicated
air
pump
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910904804.7A
Other languages
Chinese (zh)
Inventor
马齐林
曾建强
甘兴
戴维
蓝博
吴京平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Beijiao Siyuan Technology Development Co Ltd
Original Assignee
Beijing Beijiao Siyuan Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Beijiao Siyuan Technology Development Co Ltd filed Critical Beijing Beijiao Siyuan Technology Development Co Ltd
Priority to CN201910904804.7A priority Critical patent/CN110707343A/en
Publication of CN110707343A publication Critical patent/CN110707343A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029Heat exchange using liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M12/00Hybrid cells; Manufacture thereof
    • H01M12/04Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
    • H01M12/06Hybrid 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04067Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • H01M8/04074Heat exchange unit structures specially adapted for fuel cell
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701Temperature
    • H01M8/04708Temperature of fuel cell reactants
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Hybrid Cells (AREA)

Abstract

The invention discloses an aluminum air fuel battery system, which comprises an aluminum air battery module, a liquid inlet pump, an electrolyte tank and a heat dissipation unit, wherein the liquid inlet pump is connected with the electrolyte tank; the outlet of the electrolyte tank is communicated with the inlet of the liquid inlet pump, the outlet of the liquid inlet pump is communicated with the liquid inlet of the aluminum-air battery module, and the liquid outlet of the aluminum-air battery module is communicated with the inlet of the electrolyte tank; the heat dissipation unit comprises a cooling pump and a water cooling system, an inlet of the cooling pump is communicated with the electrolyte tank, an outlet of the cooling pump is communicated with an inlet of the water cooling system, and an outlet of the water cooling system is communicated with the electrolyte tank; still include battery management system, the signal of telecommunication output end of aluminium empty battery module, electrolyte incasement temperature sensor's output all are connected with battery management system electricity, and battery management system's output is connected with feed liquor pump and radiating element electricity. The invention has high power density, easy control of electrolyte temperature, good sealing performance and convenient industrialization.

Description

Aluminum air fuel battery system
Technical Field
The invention particularly relates to an aluminum air fuel battery system.
Background
The aluminium fuel cell is a new type high-energy chemical power supply, it uses aluminium alloy as negative electrode, air electrode as positive electrode and neutral or alkaline aqueous solution as electrolyte, and in the course of operation of cell it can utilize the consumption of aluminium alloy negative electrode and oxygen in the air to output electric energy.
The aluminum fuel battery has the advantages of large energy density, light weight, no pollution, high reliability, long service life and the like, but has low power density, large heat productivity and difficult control of the temperature of electrolyte.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an aluminum air fuel cell system which has a high power density and is easy to control the temperature of an electrolyte.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an aluminum air fuel battery system is characterized by comprising an aluminum air battery module, a liquid inlet pump, an electrolyte tank and a heat dissipation unit; the outlet of the electrolyte tank is communicated with the inlet of the liquid inlet pump, the outlet of the liquid inlet pump is communicated with the liquid inlet of the aluminum-air battery module, and the liquid outlet of the aluminum-air battery module is communicated with the inlet of the electrolyte tank; the heat dissipation unit comprises a cooling pump and a water cooling system, an inlet of the cooling pump is communicated with the electrolyte tank, an outlet of the cooling pump is communicated with an inlet of the water cooling system, and an outlet of the water cooling system is communicated with the electrolyte tank.
Further, still include battery management system, the signal of telecommunication output end of aluminium empty battery module, electrolyte incasement temperature sensor's output all are connected with battery management system electricity, and battery management system's output is connected with feed liquor pump and radiating element electricity.
Further, a cooling fan is arranged in the water cooling system.
As a preferable mode, the aluminum-air battery module includes a plurality of aluminum-air fuel battery cells.
Further, gaps are arranged between the adjacent aluminum fuel battery cells.
Further, the aluminum fuel cell monomer comprises a shell, a cavity is arranged in the shell, an air electrode and an aluminum electrode are arranged in the cavity, a liquid inlet communicated with the cavity is formed in the center of the bottom of the shell, liquid outlets are respectively arranged on two sides of the bottom of the shell, a vertical groove is respectively arranged on two sides of the shell, the top of each vertical groove is communicated with the cavity, and the bottom of each vertical groove is communicated with the corresponding liquid outlet.
Furthermore, the liquid inlet and the liquid outlet are respectively provided with a sealing ring.
Furthermore, two sides of the bottom of the shell are respectively provided with a fixed seat.
Furthermore, a stainless steel grid is arranged in the shell and is positioned outside the electrolytic membrane corresponding to the air electrode.
Furthermore, the bottom in the shell is provided with a fixing groove for fixing an aluminum block corresponding to the aluminum electrode.
Compared with the prior art, the invention has the advantages of high power density, easy control of the temperature of the electrolyte, good sealing performance and convenient industrialization.
Drawings
Fig. 1 is a schematic diagram of an aluminum fuel cell system.
Fig. 2 is a schematic structural view of an aluminum-air battery module.
Fig. 3 is a schematic diagram of the operation of the battery management system.
Fig. 4 is a schematic diagram of a battery cell structure.
Fig. 5 is a schematic view of a fixing groove structure.
Fig. 6 is an exploded view of fig. 4.
The battery module comprises a battery cell 1, a casing 101, a cavity 102, an air electrode 103, an aluminum electrode 104, a liquid inlet 105, a liquid outlet 106, an exhaust port 107, a sealing ring 108, a fixing seat 109, a bolt hole 110, a grid 111, a fixing groove 112, a waterproof vent valve 113, an aluminum-air battery module 2, a liquid inlet pump 3, an electrolyte tank 4, a heat dissipation unit 5, a cooling pump 51, a water cooling system 52, a cooling fan 521, a temperature sensor 6, a gap 7 and a battery management system 8.
Detailed Description
As shown in fig. 1 to 6, the aluminum air fuel battery system includes an aluminum air battery module 2, a liquid inlet pump 3, an electrolyte tank 4, and a heat dissipation unit 5; the outlet of the electrolyte tank 4 is communicated with the inlet of the liquid inlet pump 3, the outlet of the liquid inlet pump 3 is communicated with the liquid inlet 105 of the aluminum-air battery module 2, and the liquid outlet 106 of the aluminum-air battery module 2 is communicated with the inlet of the electrolyte tank 4; the heat dissipation unit 5 comprises a cooling pump 51 and a water cooling system 52, wherein the inlet of the cooling pump 51 is communicated with the electrolyte tank 4, the outlet of the cooling pump 51 is communicated with the inlet of the water cooling system 52, and the outlet of the water cooling system 52 is communicated with the electrolyte tank 4.
The aluminum air-fuel battery system further comprises a battery management system 8, the electric signal output end of the aluminum air-fuel battery module 2 and the output end of the temperature sensor 6 in the electrolyte tank 4 are electrically connected with the battery management system 8, and the output end of the battery management system 8 is electrically connected with the liquid inlet pump 3 and the cooling pump 51 and the water cooling system 52 of the heat dissipation unit 5.
Each module adopts independent feed liquor pump 3, can adjust feed liquor pump 3 and adjust the velocity of flow of electrolyte to the output of debugging battery system.
As shown in fig. 3, the BMS (battery management system 8) collects the state of the battery, and the main controller performs processing and judgment to automatically control the battery. BMS possesses the real-time analysis ability of battery trouble, carries out early warning and warning to the battery, fixes a position the trouble, facilitates for the maintenance of battery. The battery management system 8 is in network communication with the outside and reports the battery state in real time, thereby avoiding the influence of over-discharge on the use of the battery in the use process of the battery and reducing the operation cost. The maintenance of the battery is intelligentized.
The water cooling system 52 is provided with a cooling fan 521 inside.
The present invention adopts the independent heat dissipation unit 5, which can adjust the flow rate of the cooling pump 51 and the rotation speed of the built-in heat dissipation fan 521 of the water cooling system 52 to accurately control the temperature of the electrolyte, so that the battery system can work at the optimum temperature point.
The aluminum-air battery module 2 comprises a plurality of aluminum-air fuel battery cells 1. The aluminum-air battery module 2 adopts a modular design, and can be connected in series and in parallel according to different requirements of system voltage, current, power and the like.
Be equipped with clearance 7 between the adjacent aluminium air fuel battery monomer 1, admit air from the side edge, guaranteed the supply of oxygen and taken away partial heat simultaneously, on the basis of guaranteeing the functionality, furthest has increased the integrated level.
One embodiment of the aluminum air fuel battery cell 1 comprises a casing 101, a cavity 102 is arranged in the casing 101, an air electrode 103 and an aluminum electrode 104 are arranged in the cavity 102, a liquid inlet 105 communicated with the cavity 102 is formed in the center of the bottom of the casing 101, liquid outlets 106 are respectively arranged on two sides of the bottom of the casing 101, vertical grooves are respectively arranged on two sides of the casing 101, the tops of the vertical grooves are communicated with the cavity 102, and the bottoms of the vertical grooves are communicated with the corresponding liquid outlets 106. As shown in fig. 2 and 3, the vertical slots are formed in two vertical rods on both sides of the housing 101, which are not shown in the drawing direction, but do not affect the understanding and implementation of the present invention by those skilled in the art. The electrolyte enters the cavity 102 from a liquid inlet 105 at the middle lower part, overflows into the vertical groove from the upper part of the vertical groove after filling the whole cavity 102, and then falls and flows out through the vertical groove and a liquid outlet 106 in sequence. Namely, in the invention, the electrolyte enters from the bottom, and overflows through the upper opening on the other side after being washed once inside the battery cell 1, and directly falls and flows out. The design of the liquid flow system ensures the liquid inlet consistency of the battery monomer 1 and simultaneously reduces the influence of series connection as much as possible.
And the liquid inlet 105 and the liquid outlet 106 are both provided with sealing rings 108, so that the sealing can be effectively realized.
Two sides of the bottom of the housing 101 are respectively provided with a fixing seat 109. The fixing seat 109 is provided with a bolt hole 110. The two ends of the single battery body 1 can be fixed by bolts, so that the installation reliability of the single battery body 1 is ensured, each single battery body 1 can be reliably installed, and the industrialization is facilitated.
A stainless steel grid 111 is arranged in the shell 101 and is positioned outside the electrolytic membrane corresponding to the air electrode 103. Because the electrolyte has pressure in the battery monomer 1, so increase stainless steel grid 111 in the outside of electrolytic film, stainless steel's grid 111 can guarantee the intensity of grid 111 well, does not let the electrolytic film atress extrude outward. By adopting the stainless steel grid 111, the thickness of the battery cell 1 is effectively reduced under the condition of ensuring the strength, and the power density of the battery is increased under the condition of the same space size.
The bottom of the shell 101 is provided with a fixing groove 112 for fixing an aluminum block corresponding to the aluminum electrode 104. The fixing groove 112 can ensure the fixation of the aluminum block in the installation and reaction processes, so that the alignment accuracy of the inserted aluminum block can be improved, and the industrialization is facilitated.
The shell 101 is provided with an exhaust port 107 communicated with the cavity 102. The exhaust port 107 is used to exhaust gas during the reaction of the battery cell 1.
And a waterproof vent valve 113 is arranged at the exhaust port 107. The exhaust port 107 is provided with a waterproof vent valve 113, so that effective sealing can be realized while exhaust is ensured.
The invention is suitable for high-power standby power supplies, UPS and the like.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. An aluminum air fuel battery system is characterized by comprising an aluminum air battery module (2), a liquid inlet pump (3), an electrolyte tank (4) and a heat dissipation unit (5); the outlet of the electrolyte tank (4) is communicated with the inlet of the liquid inlet pump (3), the outlet of the liquid inlet pump (3) is communicated with the liquid inlet (105) of the aluminum-air battery module (2), and the liquid outlet (106) of the aluminum-air battery module (2) is communicated with the inlet of the electrolyte tank (4); the heat dissipation unit (5) comprises a cooling pump (51) and a water cooling system (52), wherein the inlet of the cooling pump (51) is communicated with the electrolyte tank (4), the outlet of the cooling pump (51) is communicated with the inlet of the water cooling system (52), and the outlet of the water cooling system (52) is communicated with the electrolyte tank (4).
2. The aluminum air-fuel battery system as claimed in claim 1, further comprising a battery management system (8), wherein the electrical signal output end of the aluminum air battery module (2) and the output end of the temperature sensor (6) in the electrolyte tank (4) are electrically connected with the battery management system (8), and the output end of the battery management system (8) is electrically connected with the liquid inlet pump (3) and the heat dissipation unit (5).
3. An aluminum fuel cell system as set forth in claim 1 wherein said water cooling system (52) incorporates a heat rejection fan (521).
4. An aluminum air-fuel cell system as claimed in claim 1, characterized in that the aluminum air-fuel cell module (2) comprises a number of aluminum air-fuel cells (1).
5. An aluminum fuel cell system according to claim 4, wherein a gap (7) is provided between adjacent aluminum fuel cells (1).
6. The aluminum air-fuel battery system as claimed in claim 4, wherein the aluminum air-fuel battery cell (1) comprises a housing (101), a cavity (102) is arranged in the housing (101), an air electrode (103) and an aluminum electrode (104) are arranged in the cavity (102), a liquid inlet (105) communicated with the cavity (102) is formed in the center of the bottom of the housing (101), liquid outlets (106) are respectively formed in two sides of the bottom of the housing (101), a vertical groove is respectively formed in two sides of the housing (101), the top of each vertical groove is communicated with the cavity (102), and the bottom of each vertical groove is communicated with the corresponding liquid outlet (106).
7. An aluminum fuel cell system as set forth in claim 6, wherein a seal ring (108) is provided at each of the inlet port (105) and the outlet port (106).
8. An aluminum fuel cell system as claimed in claim 6, wherein a fixing seat (109) is provided on each of both sides of the bottom of the housing (101).
9. An aluminum fuel cell system according to claim 6, wherein a stainless steel grid (111) is provided inside the case (101) outside the electrolyte membrane corresponding to the air electrode (103).
10. An aluminum fuel cell system as set forth in claim 6, wherein the housing (101) is provided at its inner bottom with a fixing groove (112) for fixing an aluminum block corresponding to the aluminum electrode (104).
CN201910904804.7A 2019-09-24 2019-09-24 Aluminum air fuel battery system Pending CN110707343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910904804.7A CN110707343A (en) 2019-09-24 2019-09-24 Aluminum air fuel battery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910904804.7A CN110707343A (en) 2019-09-24 2019-09-24 Aluminum air fuel battery system

Publications (1)

Publication Number Publication Date
CN110707343A true CN110707343A (en) 2020-01-17

Family

ID=69196024

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910904804.7A Pending CN110707343A (en) 2019-09-24 2019-09-24 Aluminum air fuel battery system

Country Status (1)

Country Link
CN (1) CN110707343A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112542598A (en) * 2020-12-24 2021-03-23 郑州佛光发电设备有限公司 System and method for heating metal air battery electrolyte by using self-oxygen production mode
CN112886102A (en) * 2021-01-20 2021-06-01 中车青岛四方机车车辆股份有限公司 Rail vehicle and metal air fuel cell, electrolyte tank and tank cover thereof
CN114335820A (en) * 2021-12-16 2022-04-12 中国人民解放军火箭军工程大学 Aluminum-air power supply electrolyte temperature-changing operation system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202737061U (en) * 2012-04-10 2013-02-13 德阳东深新能源科技有限公司 High-power aluminum-air battery system
CN103296338A (en) * 2013-06-20 2013-09-11 北京西区码头商贸有限公司 Aluminum air fuel cell system
CN105280989A (en) * 2015-09-14 2016-01-27 哈尔滨工业大学 Aluminum-air battery stack
CN108106470A (en) * 2017-11-24 2018-06-01 上海华普汽车有限公司 A kind of cooling device and aluminium-air cell
CN208078141U (en) * 2018-01-31 2018-11-09 乐山创新储能技术研究院有限公司 Keep the device of liquid flow battery liquid storage tank electrolyte inside constant temperature
CN210607471U (en) * 2019-09-24 2020-05-22 北京北交思远科技发展有限公司 Aluminum air fuel battery system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202737061U (en) * 2012-04-10 2013-02-13 德阳东深新能源科技有限公司 High-power aluminum-air battery system
CN103296338A (en) * 2013-06-20 2013-09-11 北京西区码头商贸有限公司 Aluminum air fuel cell system
CN105280989A (en) * 2015-09-14 2016-01-27 哈尔滨工业大学 Aluminum-air battery stack
CN108106470A (en) * 2017-11-24 2018-06-01 上海华普汽车有限公司 A kind of cooling device and aluminium-air cell
CN208078141U (en) * 2018-01-31 2018-11-09 乐山创新储能技术研究院有限公司 Keep the device of liquid flow battery liquid storage tank electrolyte inside constant temperature
CN210607471U (en) * 2019-09-24 2020-05-22 北京北交思远科技发展有限公司 Aluminum air fuel battery system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112542598A (en) * 2020-12-24 2021-03-23 郑州佛光发电设备有限公司 System and method for heating metal air battery electrolyte by using self-oxygen production mode
CN112886102A (en) * 2021-01-20 2021-06-01 中车青岛四方机车车辆股份有限公司 Rail vehicle and metal air fuel cell, electrolyte tank and tank cover thereof
CN114335820A (en) * 2021-12-16 2022-04-12 中国人民解放军火箭军工程大学 Aluminum-air power supply electrolyte temperature-changing operation system and method
CN114335820B (en) * 2021-12-16 2024-05-31 中国人民解放军火箭军工程大学 Aluminum air power supply electrolyte temperature-changing operation system and operation method

Similar Documents

Publication Publication Date Title
CN110707343A (en) Aluminum air fuel battery system
CN210607471U (en) Aluminum air fuel battery system
WO2021190408A1 (en) Open type metal-air fuel cell system capable of uninterruptedly supplying power
WO2018066939A1 (en) Bipolar electrode assembly that is capable of quantitative measurements by visualising electric current, and electrochemical cell and electrochemical cell management system using same
EP3506415B1 (en) A metal air fuel cell and its system
CN114381759A (en) Control system and control method of photovoltaic hydrogen production system
EP3557690A1 (en) A small metal air cell
CN210607451U (en) Aluminum air fuel battery monomer
CN219136955U (en) Normal-pressure small-sized hydrogen production test system by water electrolysis
CN218989415U (en) PEM water electrolytic tank
CN218030439U (en) Power supply system and electrolytic cell structure of marine extended-range generator
CN110676423A (en) Aluminum air fuel battery monomer
CN217230969U (en) Control system of photovoltaic hydrogen production system
CN211170913U (en) Water tank and electrolytic bath integrated electrolytic device
CN215887249U (en) Electrolytic system package of household hydrogen production equipment
CN212136587U (en) Electrolyte circulating device
CN212517265U (en) Integrated water-gas separation circulating device for fuel cell
CN211595806U (en) Hydrogen machine for breathing
CN211017238U (en) Internal oxygen type metal-air battery pack
CN210620955U (en) Electrolytic ozone generator with compact structure
CN219059140U (en) Polar plate of PEM water electrolytic bath
CN203300747U (en) Hybrid fuel cell
CN213242672U (en) Alloy air battery pack applied to ocean monitoring buoy platform
CN220233243U (en) Dual-inlet fuel cell visualization device
CN215050742U (en) Device for producing hydrogen by electrolytic water of retired battery

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination