Large-size anode tracking adjustable metal-air fuel cell system

Abstract

The present invention relates to the field of battery technology. [Solution] The present invention discloses a metal-air fuel cell system with large-sized anode tracking adjustment, which includes a flexible housing, a tracking adjustment module, and a driving mechanism, wherein the flexible housing is for accommodating an electrolyte and a metal ingot 24 as an electrochemical reaction space, the tracking adjustment module can change the shape of the flexible housing to follow dimensional changes of the metal ingot and reduce the size of the electrochemical reaction space, and the driving mechanism is for controlling the operation of the tracking adjustment module. The metal-air fuel cell system with large-sized anode tracking adjustment provided by the present invention can achieve real-time size adjustment through the tracking adjustment mechanism based on size changes of the metal ingot during the reaction process, ensuring the durability and stability of the electrochemical reaction and improving the performance reliability of the metal-air fuel cell.

Description

[Technical Field]

[0001] The present invention relates to the field of battery technology, and more particularly to a large-size anode tracking regulated metal-air fuel cell system. [Background technology]

[0002] Metal-air fuel cells have the advantages of low cost, non-toxicity, non-pollution, stable discharge voltage, high safety, high specific energy and high specific power, and China has abundant metal resources such as magnesium, aluminum, zinc, etc., which can be used as the anode of metal-air fuel cells and gradually developed into a new energy source with great prospects for development and application. In recent years, with the development and perfection of several theoretical processes, metal-air fuel cells have been increasingly applied in fields such as energy storage, national defense, and transportation equipment, and also have great development potential in several emerging energy industries.

[0003] Conventional metal-air fuel cells often use metal plates as the battery anodes. Due to size limitations, the anodes must be replaced frequently, and the process of processing metal ingots into metal plates consumes time and energy. Using large, standard cubic metal ingots as metal battery anodes can compensate for the defects of metal plates. However, current metal batteries still often employ rigid, fixed battery boxes. As the chemical reaction progresses, the volume of the metal ingot gradually shrinks, but the size of the battery box remains unchanged. This increases the distance between the surface of the metal ingot and the inner wall of the battery box where the air electrode is embedded. This significantly reduces the electrochemical reaction rate and fails to ensure the durability and stability of the electrochemical reaction, seriously affecting the performance of metal-air fuel cells. This is also a major technical obstacle to the widespread application of large-scale metal-air fuel cells. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to solve the problems existing in the prior art, the object of the present invention is to provide a metal-air fuel cell system with large-sized anode tracking adjustment, which can realize real-time size adjustment through a tracking adjustment mechanism based on the size change of the metal ingot during the reaction process, ensure the continuity and stability of the electrochemical reaction, and improve the performance reliability of the metal-air fuel cell. [Means for solving the problem]

[0005] In order to achieve the above object, the present invention provides the following aspects. The present invention provides a metal-air fuel cell system with large anode adjustment, comprising a flexible housing, a tracking module, and a driving mechanism, wherein the flexible housing serves as an electrochemical reaction space for accommodating an electrolyte and a metal ingot, the tracking module can change the shape of the flexible housing to follow dimensional changes of the metal ingot and reduce the size of the electrochemical reaction space, and the driving mechanism controls the operation of the tracking module. The present invention directly uses a large standard cubic metal ingot as the cell anode, and its housing is made of a flexible rubber material. In cooperation with the tracking system, the shape of the housing can be adjusted in real time based on the size of the metal ingot, ensuring the durability and stability of the electrochemical reaction process, solving the technical problem of the gradual decline in performance of large metal batteries as the reaction progresses, eliminating a major technical obstacle to its application, and fully realizing the huge market application prospects and development potential of metal-air fuel cells.

[0006] Optionally, the flexible housing is a rounded-corner rectangular housing without a top made by molding a flexible rubber material, the tracking adjustment module is fixedly connected to four side walls of the flexible housing, and the tracking adjustment module can press the walls of the flexible housing to cause elastic deformation and compress them inward under the action of an external force, and a circulating electrolyte interface is opened at one corner of the bottom of the flexible housing, and the circulating electrolyte interface is externally connected to an electrolyte circulation system, which is used to discharge excess electrolyte solution during the housing deformation process and perform sedimentation purification under certain conditions.

[0007] Optionally, the tracking adjustment module includes four rigid support rods fixedly inserted into vertical through-holes opened at the center of the four side walls of the flexible housing, the rigid support rods fixedly connecting the sliders to their bottoms, the sliders each having a threaded through-hole on the slider side, a horizontally disposed lead screw threaded into the threaded through-hole, and one end of the lead screw transmissively connected to the drive mechanism. The rigid support rods serve as direct biasing members for housing deformation, and under the action of the lead screws, the four rigid support rods move toward the center, pushing the housing walls to elastically deform and compress them inward. The drive mechanism for the rigid support rods is not particularly limited, and other structures besides a lead screw and nut structure can be used. For example, four telescopic cylinders or hydraulic cylinders can be provided to similarly move the four corresponding rigid support rods horizontally and further compress the housing side walls.

[0008] Optionally, a fixed bracket is provided above the flexible housing, a camera is movably attached to the fixed bracket, a controller is connected to the camera, the controller is electrically connected to the drive mechanism, and a metal ingot is fixedly attached to the lower end of the fixed bracket by a bolt.

[0009] Optionally, slide grooves are provided at the four corners of the tip of the flexible housing, and four horizontal connecting rods are fixedly connected to the side walls of the fixed bracket, and the horizontal connecting rods are positioned in the slide grooves. The slide grooves serve as support members for the subsequent metal ingot, camera, and conducting wires, and can also be used to constrain the wall surface of the housing and compress it uniformly inward.

[0010] Optionally, the drive mechanism includes a drive motor, the drive motor is transmission-connected to a drive bevel gear via a coupling, the drive bevel gear is meshed with a horizontally arranged driven bevel gear, a disc bevel gear is coaxially installed above the driven bevel gear, a compression bevel gear is fixedly installed at one end of the rigid support rod, and the four compression bevel gears are transmission-connected to the disc bevel gears, respectively.

[0011] Optionally, the device further includes a first bottom plate and a second bottom plate, the first bottom plate is fixedly connected to the second bottom plate through a plurality of telescopic support rods, the four side walls of the first bottom plate are each provided with a guide groove directed toward the center, the four rigid support rods are vertically movably installed in the four guide grooves corresponding thereto, a compression bevel gear outer bearing base is fixed and continuous to the outer lower side of the guide groove, and a compression bevel gear bearing connected to the compression bevel gear is mounted on the compression bevel gear outer bearing base, and the first bottom plate A disc bevel gear bearing base is attached to the inner bottom, and a driven bevel gear bearing base is attached coaxially to the disc bevel gear bearing base to the top of the second bottom plate, and the disc bevel gear bearing base and the driven bevel gear bearing base are used to connect the disc bevel gear shaft and the gear shaft of the driven bevel gear, and a drive bevel gear bearing base is provided on the driven bevel gear bearing base side, and a drive motor mounting through hole is opened in the second bottom plate outside the drive bevel gear bearing base.

[0012] Optionally, the circulating electrolyte interface includes a temperature sensor, a flow rate sensor, and a viscosity sensor, which are electrically connected to the controller, respectively.

[0013] Optionally, the electrolyte circulation system includes a water tank and a settling tank, the circulating electrolyte interface is connected to the water tank via a first water supply pipe, the water tank is connected to the flexible housing via a first water return pipe, the water tank is connected to the lower part of the settling tank via a second water supply pipe, and the water tank is connected to the upper part of the settling tank via a second water return pipe, and the first water supply pipe, the first water return pipe, the second water supply pipe, and the second water return pipe are all provided with pumps. [Effects of the Invention]

[0014] The present invention has the following technical advantages over the prior art: The present invention uses a tracking adjustment system to allow large-sized standard cubic metal ingots to be directly used in metal fuel cells, and to maintain a relatively constant distance between the battery anode metal ingot and the battery cathode air electrode, ensuring that the electrochemical reaction proceeds continuously and stably, allowing the metal-air fuel cell to always be in an efficient power generation state.

[0015] In order to more clearly describe the embodiments of the present invention or the technical aspects of the prior art, the following briefly describes the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of a flexible housing structure of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the tracking adjustment module and drive mechanism of the present invention. [Figure 3]FIG. 3 is a schematic diagram of the drive mechanism of the present invention. [Figure 4] FIG. 4 is a structural schematic diagram of the first and second bottom plates of the present invention. [Figure 5] FIG. 5 is a schematic view of the first and second bottom plates of the present invention at different angles. [Figure 6] FIG. 6 is a schematic diagram of the initial state of the overall structure of the large-size anode follow-up adjustment metal-air fuel cell system of the present invention. [Figure 7] FIG. 7 is a schematic diagram showing the route layout of the electrolyte circulation system of the present invention. [Figure 8] FIG. 8 is a schematic diagram of the overall structure of the large-size anode follow-up adjustment metal-air fuel cell system of the present invention in a compressed state. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, the technical aspects of the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, and are not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present invention.

[0018] In order to solve the problems existing in the prior art, the object of the present invention is to provide a metal-air fuel cell system with large-sized anode tracking adjustment, which can realize real-time size adjustment through a tracking adjustment mechanism based on the size change of the metal ingot during the reaction process, ensure the continuity and stability of the electrochemical reaction, and improve the performance reliability of the metal-air fuel cell.

[0019] In order to make the above objects, features and advantages of the present invention more clearly comprehensible, the present invention will be described in more detail below in combination with the accompanying drawings and specific embodiments.

[0020] <Terminology> Tracking adjustment system: A tracking adjustment system, also known as a servo system or tracking system, is a feedback adjustment system in which the input quantity of the tracking adjustment system changes randomly, and the output quantity of the system changes according to the change in the input quantity with a certain accuracy. Metal-air fuel cell: A special fuel cell that uses metal as fuel and generates electrical energy by undergoing an oxidation-reduction reaction with oxygen in the air. Electrolyte: An electrolyte is a medium used in chemical batteries, electrolytic capacitors, etc. In the present invention, the electrolyte is a 10% sodium chloride solution. Standard cubic metal ingot: A standard 99.9% pure metal cube with a side length of 1 meter.

[0021] As shown in Figures 1, 2 and 6, the present invention comprises a flexible housing 1 made of rubber for containing an electrolyte and a metal ingot 24. The present invention uses a large cubic metal ingot as the anode, the interior of the flexible housing 1 is an electrochemical reaction space, the inner wall of the flexible housing 1 has a built-in flexible air electrode as the cathode, and a tracking adjustment module is attached to the side wall of the flexible housing 1, which can change the shape of the flexible housing 1 in response to dimensional changes of the metal ingot 24, thereby reducing the size of the electrochemical reaction space. A driving mechanism is used to control the operation of the tracking adjustment module. The present invention directly uses a large standard cubic metal ingot as the battery anode, and the housing is made of flexible rubber material. By cooperating with the tracking adjustment system, the shape of the housing can be adjusted in real time according to the size of the metal ingot, ensuring the durability and stability of the electrochemical reaction process and solving the technical problem of gradual performance degradation of large metal batteries during reaction.

[0022] Specifically, the flexible housing 1 is a rounded-corner rectangular housing without a top made by molding flexible rubber material, and is the core component of the entire device. The tracking adjustment mechanism allows it to change shape in real time according to changes in the size of the metal ingot, ensuring the continuity and stability of the reaction process. A circulating electrolyte interface 4 is opened at one corner of the bottom of the flexible housing 1, and is externally connected to the electrolyte circulation system to discharge excess electrolyte solution during the deformation process of the housing and perform sedimentation purification under certain conditions. As shown in Figure 7, the electrolyte circulation system includes a water tank 22 and a settling tank 23. The electrolyte circulation interface 4 is connected to the water tank 22 via a first water supply pipe, and the water tank 22 is connected to the flexible housing 1 via a first return pipe. The water tank 22 is connected to the lower part of the settling tank 23 via a second water supply pipe, and the water tank 22 is connected to the upper part of the settling tank 23 via a second return pipe. The first water supply pipe, the first return pipe, the second water supply pipe, and the second return pipe are all equipped with water pumps 27. The reaction tank is connected to the circulation system via the electrolyte circulation interface 4. The water tank serves as a temporary storage space for the electrolyte, and at the same time, it undergoes precipitation purification when certain conditions are met, ensuring the electrochemical reaction proceeds efficiently and stably.The driven adjustment module includes four rigid support rods 5 fixedly inserted into vertical through-holes 3 opened at the center of the four side walls of the flexible housing 1, and the slider is fixedly connected to the bottom of the rigid support rods 5. An axial threaded through-hole is opened on the slider side along the direction of the lead screw 6, and a horizontally arranged lead screw 6 is screwed into the threaded through-hole to convert the rotational motion of the lead screw 6 into the translational motion of the rigid support rods 5. One end of the lead screw 6 is transmissively connected to a drive mechanism, and the drive mechanism includes a drive motor 9. The drive motor 9 is transmissively connected to a drive bevel gear 11 via a coupling 10, and the drive bevel gear 11 is It meshes with a horizontally arranged driven bevel gear 12, and a disc bevel gear 8 is installed coaxially above the driven bevel gear 12. A compression bevel gear 7 is fixedly installed at one end of the rigid support rod 5. The four compression bevel gears 7 are respectively connected to the disc bevel gear 8. The rigid support rod 5 serves as a direct biasing member for deformation of the housing, and the drive mechanism can rotate the lead screw 6. When the lead screw 6 rotates, the threaded slider moves horizontally along the lead screw 6. Further, under the action of the lead screw 6, the four rigid support rods 5 can move toward the center, pushing the housing wall surface to generate elastic deformation and compressing it inward.

[0023] In order to make the installation of the transmission mechanism stronger and more reliable, the present invention uniquely designs the first base plate 13 and the second base plate 21. As shown in Figures 4 and 5, the bottom of the first base plate 13 is fixedly connected to the second base plate 21 via a number of telescopic support rods 16. Guide grooves 14 facing toward the center are formed on the four side walls of the first base plate 13, and four rigid support rods 5 are correspondingly installed in the four guide grooves 14 so as to be vertically movable. A compression bevel gear outer bearing base 15 is fixed and continuous to the outer lower side of the guide groove 14, and a compression bevel gear bearing connecting with the compression bevel gear is installed on the compression bevel gear outer bearing base 15. A disk bevel gear bearing base 18 is attached to the inner bottom of the first bottom plate 13, and a driven bevel gear bearing base 17 is attached coaxially to the disk bevel gear bearing base 18 to the top of the second bottom plate 21. The disk bevel gear bearing base 18 and the driven bevel gear bearing base 17 are used to connect the disk bevel gear shaft and the gear shaft of the driven bevel gear. A drive bevel gear bearing base 19 is provided on the driven bevel gear bearing base 17 side, and a drive motor mounting through hole 20 is opened in the second bottom plate outside the drive bevel gear bearing base 19. The drive motor mounting hole 20 is connected to the drive motor 9 via a bolt, allowing each bevel gear structure and drive motor 9 to be mounted at the corresponding position on the base plate. A first base plate 13 is placed under the flexible housing 1, and the bottom surface of the flexible housing 1 is supported by the first base plate 13 to prevent the bottom surface from bulging downward during deformation. The rigid support rod 5 passing through the rubber housing passes through a guide groove 14 and engages with the lead screw 6. The guide groove 14 provides a guide for the translational movement of the rigid support rod 5, restricting it to movement only in the direction of the groove. The telescopic support rod 16 is used to adjust the gap between the two layers of the base plate to facilitate assembly of the drive mechanism.

[0024] Referring to FIG. 3, the transmission calculation of the drive mechanism is explained as follows. The rotation speed of the drive motor is n0. Since the drive bevel gear is connected to the drive motor shaft via a coupling, its rotation speed n1=n0. If the transmission ratio between the drive bevel gear and the driven bevel gear is i1, then the rotation speed n2 of the driven bevel gear satisfies the following relational expression.

[0025]

number

[0026] Since the driven bevel gear and disc bevel gear are fixed and continuous on the same axis, if the rotation speed of the disc bevel gear is n3 = n2 and the transmission ratio between the disc bevel gear and the four compression bevel gears is i2, then the rotation speed of the compression bevel gear, n4, satisfies the following relationship:

[0027]

number

[0028] Since the compression bevel gear is fixed and continuous with the screw, if the lead screw rotation speed n5 = n4 and the lead screw lead is d, the horizontal movement speed v of the support rod, which is the linear motion speed of the nut, is as follows:

[0029]

number

[0030] By combining the above equations, we obtained the relational expression between the horizontal movement speed v of the support rod and the motor rotation speed n0.

[0031]

number

[0032] More preferably, slide grooves 2 are opened at the four corners of the tip of the flexible housing 1, a fixed bracket 25 is installed above the flexible housing 1, a camera 26 is movably mounted on the fixed bracket 25, a controller is connected to the camera 26, and the controller is electrically connected to the driving mechanism, a temperature sensor, a flow rate sensor, and a viscosity sensor are built into the circulating electrolyte interface 4, and the temperature sensor, flow rate sensor, and viscosity sensor are respectively electrically connected to the controller, which adopts a conventional microcontroller MCU, a metal ingot 24 is fixedly installed at the lower end of the fixed bracket 25 with bolts, four horizontal connecting rods are fixedly connected to the side walls of the fixed bracket 25, and the horizontal connecting rods are located in the slide grooves 2, and conductive wires are embedded inside the fixed bracket 25 to connect the metal ingot to the air electrode embedded in the wall of the flexible housing 1 and to complete the circuit, and the camera 26 can rotate 360 ​​degrees around the mounting rod on the fixed bracket 25 to collect image information and use it to determine the reaction state of the metal ingot 24 and the distance between the metal ingot and the housing.

[0033] The basic principle of the control of the present invention is that sensors collect information such as electrolyte temperature, flow rate, viscosity, and motor rotation speed, and the camera collects data on the distance between the metal ingot and the wall surface, which is input to the controller MCU. The MCU processes this data, compares the current distance with a preset expected value, and sends command information to the drive motor and water pump based on its built-in algorithm. The drive motor receives the command and adjusts its operating state. The connected transmission mechanism transmits the drive motor's rotation and converts it into movement of the rigid support rod 5, which changes the shape of the flexible housing 1 and enables the flexible housing 1 to adjust its size accordingly. Meanwhile, when the flexible housing 1 is compressed, the MCU controls the water pump 27 between the reaction chamber and water tank 22 in the flexible housing 1 to suck excess electrolyte from the flexible housing 1 into the water tank. When the shape of the flexible housing 1 is restored, the water pump 27 re-pumps the electrolyte from the water tank 22 into the flexible housing 1. When the viscosity data of the viscosity sensor exceeds a certain threshold, the MCU issues a command to the water pump 27 between the water tank and the settling tank 23, pumping the metal hydroxide suspension in the water tank 22 into the settling tank 23 to settle it, and returning the upper supernatant to the water tank 22 as a reserve liquid for the reaction tank in the flexible housing 1.

[0034] Example 1 In this example, magnesium metal was used as an example. In this example, the initial state, i.e., before electrochemical reaction has started, is when no elastic deformation has occurred. The maximum internal space of the flexible housing 1 at this time is a standard cubic magnesium ingot measuring 1m x 1m x 1m. The flexible housing 1 was placed on a base plate. Before the magnesium battery was activated, the drive mechanism, base plate, flexible housing 1, and accessories were first connected. Then, bolts for standard cubic magnesium ingots were fastened to the fixing bracket, which was attached to the top of the flexible housing 1. The square slide grooves cooperated to suspend the magnesium ingot within the flexible housing 1, keeping its four sides parallel to the walls of the flexible housing 1. The camera, sensor signal interface, and controller MCU were connected with wires. Then, the prepared 10% sodium chloride solution was pumped into the flexible housing 1 via the electrolyte circulation interface 4 using a water pump until the entire magnesium ingot 24 was submerged. The electrochemical reaction began, and the magnesium battery continued to generate electricity.

[0035] After the magnesium ingot 24 has undergone a certain period of initial reaction, the camera 26 starts to collect image information and obtains real-time distance data between the edge of the magnesium ingot 24 and the box wall, and the MCU sets the minimum distance L min Analyze and L min When the distance exceeds 20 mm, the controller MCU issues a start command to the drive motor, causing it to start rotating forward, and presses the wall surface of the flexible housing 1 through the drive mechanism to compress it. The drive motor 9 is connected to a rotation sensor and a controller to facilitate adjustment of the rotation speed. min If the viscosity of the fluid is less than 10 mm, the controller MCU sends a signal to inhibit the flow of fluid in a reverse direction, and the drive mechanism drives the expansion of the wall of the flexible housing 1. When the MCU receives information that the viscosity data input from the viscosity sensor exceeds the set viscosity threshold, it issues a command to the water pump 27 between the water tank 22 and the settling tank 23, pumps the suspension in the water tank 22 into the inclined pipe settling tank 23 to settle, extracts the sediment from the bottom, and returns the supernatant fluid to the water tank 22.

[0036] As shown in Figure 8, the tracking adjustment system allows large-sized standard cubic magnesium ingots to be directly used in magnesium-air fuel cells, maintaining a relatively constant distance between the battery anode magnesium ingot and the battery cathode air electrode, ensuring the electrochemical reaction proceeds continuously and stably, and allowing the magnesium-air fuel cell to always be in an efficient power generation state.

[0037] In describing the present invention, the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," etc., used to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are merely for the purpose of facilitating and simplifying the description of the present invention, and are not intended to imply that a specified device or element is configured or operated in a particular orientation or direction, and therefore should not be construed as a limitation on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0038] Although the present invention has been described using specific examples to explain the principles and embodiments of the present invention, the explanation of the above examples is only to help understand the method of the present invention and its core idea, and at the same time, those skilled in the art will be able to make changes in the specific embodiments and application scope based on the idea of ​​the present invention. As such, the contents of this specification should not be understood as limitations on the present invention. [Explanation of symbols]

[0039] 1 - flexible housing, 2 - sliding groove, 3 - through hole, 4 - circulating electrolyte interface, 5 - rigid support rod, 6 - lead screw, 7 - compression bevel gear, 8 - disc bevel gear, 9 - drive motor, 10 - coupling, 11 - drive bevel gear, 12 - driven bevel gear, 13 - first bottom plate, 14 - guide groove, 15 - compression bevel gear outer bearing base, 16 - telescopic support rod, 17 - driven bevel gear bearing base, 18 - disc bevel gear bearing base, 19 - drive bevel gear bearing base, 20 - drive motor mounting through hole, 21 - second bottom plate, 22 - water tank, 23 - sedimentation tank, 24 - metal ingot, 25 - fixing bracket, 26 - camera, 27 - water pump.

Claims

1. A large-sized anode tracking metal-air fuel cell system, comprising: a flexible housing, a tracking module, and a driving mechanism; the flexible housing serves as an electrochemical reaction space for containing an electrolyte and a metal ingot; The tracking adjustment module can change the shape of the flexible housing according to the dimensional change of the metal ingot, thereby reducing the dimension of the electrochemical reaction space; 10. A large-size anode tracking metal-air fuel cell system, wherein the driving mechanism is for controlling the operation of the tracking module.

2. The flexible housing is a rounded rectangular housing without a top, manufactured by molding a flexible rubber material, the tracking adjustment module is fixedly connected to four side walls of the flexible housing, and the tracking adjustment module can press the wall surfaces of the flexible housing to generate elastic deformation and compress them inward under the action of an external force; 2. The large-sized metal-air fuel cell system with anode tracking adjustment as described in claim 1, characterized in that a circulating electrolyte interface is opened at one corner of the bottom of the flexible housing, and the circulating electrolyte interface is externally connected to an electrolyte circulation system.

3. The tracking adjustment module includes four rigid support rods fixedly inserted into vertical through-holes formed at the center of the four side walls of the flexible housing; The large-sized metal-air fuel cell system with anode tracking adjustment as described in claim 2, characterized in that the rigid support rod has a slider fixedly connected to its bottom, a threaded through-hole is opened on the slider side, a horizontally disposed lead screw is screwed into the threaded through-hole, and one end of the lead screw is transmissively connected to the driving mechanism.

4. A large-sized metal-air fuel cell system with anode tracking adjustment as described in claim 2, characterized in that a fixed bracket is provided above the flexible housing, a camera is movably attached to the fixed bracket, a controller is connected to the camera, and the controller is electrically connected to the drive mechanism.

5. The large-sized metal-air fuel cell system with anode tracking adjustment as described in claim 4, characterized in that slide grooves are opened at the four corners of the tip of the flexible housing, and four horizontal connecting rods are fixedly connected to the side walls of the fixed bracket, and the horizontal connecting rods are located in the slide grooves.

6. 4. The large-sized metal-air fuel cell system with anode tracking adjustment according to claim 3, wherein the driving mechanism includes a driving motor, the driving motor is connected to a driving bevel gear via a coupling, the driving bevel gear is meshed with a horizontally arranged driven bevel gear, a disc bevel gear is coaxially installed above the driven bevel gear, a compression bevel gear is fixedly installed at one end of the rigid support rod, and the four compression bevel gears are respectively connected to the disc bevel gear.

7. The device further includes a first bottom plate and a second bottom plate, and the first bottom plate is fixedly connected to the second bottom plate via a plurality of telescopic support rods; The four side walls of the first bottom plate are each provided with a guide groove extending toward the center, the four rigid support rods are vertically movably installed within the four guide grooves, a compression bevel gear outer bearing base is fixed and continuous to the outer lower side of the guide groove, and a compression bevel gear bearing connected to the compression bevel gear is mounted on the compression bevel gear outer bearing base; a disk bevel gear bearing base is attached to the inner bottom of the first bottom plate, and a driven bevel gear bearing base is attached to the top of the second bottom plate coaxially with the disk bevel gear bearing base, and the disk bevel gear bearing base and the driven bevel gear bearing base are used to connect the disk bevel gear shaft and the gear shaft of the driven bevel gear; A large-sized anode follow-up adjustment metal-air fuel cell system as described in claim 6, characterized in that a drive bevel gear bearing base is provided on the driven bevel gear bearing base side, and a drive motor mounting through hole is opened in a second bottom plate on the outside of the drive bevel gear bearing base.

8. 5. The large-sized metal-air fuel cell system with anode tracking adjustment as described in claim 4, characterized in that the circulating electrolyte interface is equipped with a temperature sensor, a flow rate sensor and a viscosity sensor, and the temperature sensor, the flow rate sensor and the viscosity sensor are electrically connected to the controller, respectively.

9. 9. The large-sized metal-air fuel cell system with anode follow-up adjustment according to claim 8, wherein the electrolyte circulation system includes a water tank and a settling tank, the circulating electrolyte interface is connected to the water tank through a first water supply pipe, the water tank is connected to the flexible housing through a first return pipe, the water tank is connected to the lower part of the settling tank through a second water supply pipe, and the water tank is connected to the upper part of the settling tank through a second return pipe, and the first water supply pipe, the first return pipe, the second water supply pipe, and the second return pipe are all equipped with pumps.

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