A hydrogen fuel cell that is convenient for power supply

Abstract

The present invention provides a hydrogen fuel cell that is convenient for power supply, and relates to the field of battery technology, including: a battery fixing plate and a battery fixing cover, wherein a battery fixing cover is installed above the battery fixing plate; a protective cover is installed between the battery fixing plate and the battery fixing cover; a guide rail is installed on the outside of the protective cover; a groove is provided on the side of the guide rail, and a metal conductive sheet is installed inside the groove; a heating temperature control module and a catalyst detection module are installed between the battery fixing plate and the battery fixing cover. The catalyst on the catalyst layer is heated by using a heating wire, and the ascending temperature adsorption-desorption curve method is used to understand the number, distribution and adsorption capacity of active sites on the catalyst surface, and the activity of the catalyst is evaluated. The detection efficiency is greatly improved, and the working life of the hydrogen fuel cell is guaranteed, which solves the problem of cumbersome and complicated operation procedures in the method of directly removing the catalyst layer from the battery for sampling and detection.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a hydrogen fuel cell that is convenient for supplying electricity. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. At the negative electrode, hydrogen molecules are split into hydrogen ions and electrons. The hydrogen ions pass through the electrolyte layer to the positive electrode, while the electrons perform work through the external circuit and eventually reach the positive electrode. At the positive electrode, oxygen, hydrogen ions and electrons combine to form water, thus completing the entire circuit. In the prior art, when a hydrogen fuel cell is operating, the catalytic layer in the battery plays a core role in the electrochemical reaction of hydrogen and oxygen and the generation of current. The activity of the metal catalyst coated on the catalytic layer directly determines the efficiency of the battery's electrical energy conversion. As the use time increases, the activity of the catalyst will gradually decrease. In order to monitor this activity change, if the catalytic layer is directly removed from the battery for sampling and testing, not only will the operation process be cumbersome and complicated, but it will also be inefficient. More importantly, if the operation is not standardized, it may also have an adverse effect on the overall service life of the hydrogen fuel cell. Summary of the invention

[0003] The disclosed embodiments relate to a hydrogen fuel cell that is easy to power, in order to solve the problem in the prior art that when the hydrogen fuel cell is in operation, the catalytic layer in the battery plays a core role in the electrochemical reaction between hydrogen and oxygen and the generation of electric current, and the activity of the metal catalyst coated on the catalytic layer directly determines the efficiency of the battery's electrical energy conversion. As the use time increases, the activity of the catalyst will gradually decrease. In order to monitor this activity change, if the catalytic layer is directly removed from the battery for sampling and testing, not only will the operation process be cumbersome and complicated, but also inefficient. More importantly, if the operation is not standardized, it may also have an adverse effect on the overall service life of the hydrogen fuel cell.

[0004] According to a first aspect of the present disclosure, a hydrogen fuel cell for power supply is provided, which specifically comprises: a battery fixing plate and a battery fixing cover, wherein a battery fixing cover is installed above the battery fixing plate; a protective cover is installed between the battery fixing plate and the battery fixing cover, and a support plate is also installed between the battery fixing plate and the battery fixing cover; the support plate is located inside the protective cover; a guide rail is installed on the outside of the protective cover; a groove is provided on the side of the guide rail, and a metal conductive sheet is installed inside the groove, wherein a plurality of evenly arranged grooves are provided on the side of the metal conductive sheet; a heating temperature control module and a catalyst detection module are installed between the battery fixing plate and the battery fixing cover; the front sides of the heating temperature control module and the catalyst detection module pass through the protective cover.

[0005] Furthermore, a hydrogen diffusion layer, a catalytic layer, an exchange membrane, a catalytic layer, an oxygen diffusion layer and a collector cover are sequentially installed in groups between the battery fixing plate and the battery fixing cover, wherein a catalytic layer is installed at the bottom of the hydrogen diffusion layer, an exchange membrane is arranged at the bottom of the catalytic layer, a catalytic layer is also arranged at the bottom of the exchange membrane, an oxygen diffusion layer is installed at the bottom of the catalytic layer, and a collector cover is installed at the bottom of the oxygen diffusion layer.

[0006] Furthermore, guide ring grooves are provided at the bottom of the hydrogen diffusion layer and the top of the oxygen diffusion layer; guide covers are installed on both sides of the protective cover; the guide cover is a conical structure, and a plurality of spoiler rods are provided on the inner side of the guide cover, and the interiors of the two guide covers are respectively connected to the side ends of the guide ring grooves on the hydrogen diffusion layer and the oxygen diffusion layer.

[0007] Furthermore, a plurality of grooves are evenly formed at the bottom of the oxygen diffusion layer; the inner bottom of the collector cover is an inclined structure, and the inner side of the collector cover is connected to the grooves at the bottom of the oxygen diffusion layer, and a collecting pipe is installed at the side end of the collector cover; a drainage pipe is installed at the outer end of the collecting pipe; and the bottom of the drainage pipe passes through the protective cover.

[0008] Furthermore, positioning members are installed inside the side ends of the guide ring grooves on the hydrogen diffusion layer and the oxygen diffusion layer; two movable plates are rotatably installed on the outer ends of the positioning members, wherein the movable plates are arc-shaped structures; telescopic members are installed on both sides of the positioning members; and the side ends of the telescopic members are connected to the outer sides of the movable plates.

[0009] Furthermore, a connector is installed on the inner side of the metal conductive sheet; the inner end of the connector passes through the guide rail and a conductive member is installed on the side of the protective cover; the two ends of the conductive member are installed between the battery fixing plate and the battery fixing cover, and the inner side of the conductive member is connected to the catalyst layer.

[0010] Furthermore, a positioning slide bar is slidably installed in the groove on the side of the guide slide rail; a mounting slide plate is installed on the outer side of the positioning slide bar; two mounting holes are provided on the outer side of the mounting slide plate, and an inner positioning groove is provided inside the mounting slide plate and the positioning slide bar; a clamping plate is installed on the side end of the inner positioning groove through a spring; and the outer end of the clamping plate is inserted into the groove on the side of the metal conductive sheet.

[0011] Furthermore, a guide plate is installed on the inner side of the card plate; a mounting groove is opened on the guide plate, the mounting groove coincides with the mounting hole on the mounting slide, and a guide block is provided inside the mounting groove on the guide plate, wherein the side surface of the guide block is an inclined structure.

[0012] Furthermore, detection layers are installed on the upper and lower sides of the catalytic layer; a concentrator is installed on the outer end of the detection layer; and the concentrator is connected to the inner side of the catalyst detection module.

[0013] Furthermore, a driving member is installed on the inner side of the heating temperature control module; a heating wire is installed on the inner end of the driving member; and the heating wire is installed inside the catalyst layer.

[0014] The present invention provides a hydrogen fuel cell that is convenient for power supply and has the following beneficial effects:

[0015] When the present invention is in use, the catalyst on the catalytic layer is heated by using a heating wire, and the ascending temperature adsorption-desorption curve method is used to understand the number and distribution of active sites on the catalyst surface and the adsorption capacity, and the activity of the catalyst is evaluated. During the operation of the hydrogen fuel cell, a heating wire with a large coverage area is installed inside each catalytic layer. The heating wire is controlled by using a heating temperature control module to adjust the catalyst on the catalytic layer to different temperatures. The adsorption and desorption amount of the gas by the catalyst is detected by the detection layer at different temperatures, and then the activity of the catalyst is judged. The structure is simple and the volume is small, and the normal operation of the catalyst is not affected. The catalyst activity can be detected without disassembling the battery, and the detection efficiency is greatly improved, unnecessary operation steps are reduced, and the working life of the hydrogen fuel cell is guaranteed.

[0016] In addition, by using movable plates to control the flow of hydrogen and oxygen, when the hydrogen fuel cell is working, hydrogen or oxygen flows through the guide cover to the guide ring groove at the bottom of the hydrogen diffusion layer or the top of the oxygen diffusion layer. When the airflow is constant, it will not cause the position of the movable plate to change. When a sudden large airflow flows, it will push the movable plate to move to both sides, so that the movable plate reduces the space for airflow flow, reduces the inflow of excessive hydrogen or oxygen, reduces unnecessary airflow waste, and ensures the stable operation of the hydrogen fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture:

[0020] Figure 1 A schematic diagram showing the overall structure of the present application;

[0021] Figure 2 A schematic diagram of the cross-sectional structure of the protective cover of the present application is shown;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the hydrogen diffusion layer of the present application is shown;

[0023] Figure 4The schematic diagram of the decomposed structure of the catalyst layer, exchange membrane and collector cover of the present application is shown;

[0024] Figure 5 A schematic diagram of the cross-sectional structure of the air deflector of the present application is shown;

[0025] Figure 6 A schematic diagram of the cross-sectional structure of the hydrogen diffusion layer of the present application is shown;

[0026] Figure 7 The cross-sectional structure diagram of the oxygen diffusion layer of the present application is shown;

[0027] Figure 8 Shows the application by Figure 7 The enlarged structural diagram of the A part is shown;

[0028] Fig. 9 A schematic diagram of the three-dimensional structure of the guide rail of the present application is shown;

[0029] Fig.10 A schematic diagram of the cross-sectional structure of the guide rail of the present application is shown;

[0030] Fig.11 A schematic cross-sectional structure diagram of the installation slide plate of the present application is shown;

[0031] Fig.12 A schematic diagram of the heating wire distribution structure of the present application is shown.

[0032] List of reference numerals: 1. Battery fixing plate; 101. Battery fixing cover; 102. Protective cover; 103. Guide cover; 104. Spoiler rod; 105. Support plate; 106. Hydrogen diffusion layer; 107. Catalytic layer; 108. Exchange membrane; 109. Oxygen diffusion layer; 1010. Collecting cover; 1011. Collecting pipe; 1012. Drainage pipe; 1013. Positioning member; 1014. Movable plate; 1015. Telescopic member; 2. Guide rail; 201. Metal conductive sheet; 202. Connecting member; 203. Conducting member; 204. Positioning slide bar; 205. Mounting slide plate; 206. Positioning inner groove; 207. Card plate; 208. Guide plate; 209. Guide block; 3. Heating temperature control module; 301. Catalyst detection module; 302. Concentrator; 303. Detection layer; 304. Driving member; 305. Heating wire. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Please refer to Figures 1 to 12 , Embodiment 1: The present invention proposes a hydrogen fuel cell that is easy to power, comprising: a battery fixing plate 1 and a battery fixing cover 101, wherein the battery fixing cover 101 is installed above the battery fixing plate 1; a protective cover 102 is installed between the battery fixing plate 1 and the battery fixing cover 101, and a support plate 105 is also installed between the battery fixing plate 1 and the battery fixing cover 101; the support plate 105 is inside the protective cover 102; a hydrogen diffusion layer 106, a catalyst layer 107, an exchange layer 108 are installed in sequence between the battery fixing plate 1 and the battery fixing cover 101 in groups. Membrane 108, catalyst layer 107, oxygen diffusion layer 109 and converging cover 1010, wherein the bottom of hydrogen diffusion layer 106 is provided with catalyst layer 107, the bottom of catalyst layer 107 is provided with exchange membrane 108, the bottom of exchange membrane 108 is also provided with catalyst layer 107, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of oxygen diffusion layer 109 is provided with converging cover 1010; the bottom of hydrogen diffusion layer 106 and the top of oxygen diffusion layer 109 are provided with guide ring grooves; the bottom of protective cover 102 is ... catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst layer 107 is provided with oxygen diffusion layer 109, the bottom of catalyst The two sides are provided with guide covers 103; the guide covers 103 are of a conical structure, and a plurality of spoiler rods 104 are provided on the inner side of the guide covers 103, and the interiors of the two guide covers 103 are respectively connected with the side ends of the guide ring grooves on the hydrogen diffusion layer 106 and the oxygen diffusion layer 109; the bottom of the oxygen diffusion layer 109 is evenly provided with a plurality of slots; the inner bottom of the converging cover 1010 is of an inclined structure, and the inner side of the converging cover 1010 is connected with the slots at the bottom of the oxygen diffusion layer 109, and a converging cover 1010 is provided with a side end thereof. Tube 1011; a drainage pipe 1012 is installed at the outer end of the collecting pipe 1011; the bottom of the drainage pipe 1012 passes through the protective cover 102; a positioning piece 1013 is installed inside the side end of the guide ring groove on the hydrogen diffusion layer 106 and the oxygen diffusion layer 109; two movable plates 1014 are rotatably installed on the outer end of the positioning piece 1013, wherein the movable plate 1014 is an arc structure; telescopic pieces 1015 are installed on both sides of the positioning piece 1013; the side ends of the telescopic pieces 1015 are connected to the outer sides of the movable plates 1014.

[0035] In the embodiment of the present disclosure, during the operation of the hydrogen fuel cell, the battery fixing plate 1, the battery fixing cover 101 and the support plate 105 fix the hydrogen diffusion layer 106, the catalyst layer 107, the exchange membrane 108, the catalyst layer 107, the oxygen diffusion layer 109 and the confluence cover 1010 distributed in groups, and the hydrogen flows into the guide ring groove at the bottom of the hydrogen diffusion layer 106 through the guide cover 103 at one end of the protective cover 102, and the spoiler rod 104 inside the guide cover 103 disturbs the flowing hydrogen to prevent the hydrogen from The oxygen flows through the guide cover 103 at the other end of the protective cover 102 and flows into the guide ring groove at the top of the oxygen diffusion layer 109. When the hydrogen and oxygen flow into the guide ring groove at the bottom of the hydrogen diffusion layer 106 and the guide ring groove at the top of the oxygen diffusion layer 109 respectively, the position of the movable plate 1014 will not change under the action of the telescopic member 1015 when the airflow is relatively constant. When the airflow increases suddenly, the arc structure of the movable plate 1014 is pushed by the airflow, and the movable plate 1014 is fixed. The front side of the positioning member 1013 moves to both sides, and the telescopic member 1015 contracts, so that the movable plate 1014 seals the space where the airflow flows, reduces the flow rate of the airflow, and makes a constant airflow flow into the guide ring groove. The guide ring groove with a larger coverage area guides hydrogen or oxygen. When hydrogen passes through the catalyst layer 107 above the exchange membrane 108, the hydrogen molecules are decomposed into positively charged hydrogen ions and electrons under the catalytic action. The hydrogen ions have the selective ability to pass through the exchange membrane 108, and the electrons flow to the cathode conductive member 203 through the external circuit. When oxygen passes through the catalyst layer 107 below the exchange membrane 108, the oxygen ions generated by the oxygen under the catalytic action combine with the hydrogen ions transmitted from the anode through the exchange membrane 108 and the electrons transmitted through the external circuit, and a reduction reaction occurs to generate water. The water flows to the inside of the collector 1010 through the slot at the bottom of the oxygen diffusion layer 109. The collector 1010 collects the water together and flows outward through the collecting pipe 1011, and is discharged through the drainage pipe 1012 to complete the energy storage of electricity.

[0036] Embodiment 2, on the basis of embodiment 1, a guide rail 2 is installed on the outer side of the protective cover 102; a groove is provided on the side of the guide rail 2, and a metal conductive sheet 201 is installed inside the groove, wherein a plurality of evenly arranged grooves are provided on the side of the metal conductive sheet 201; a connector 202 is installed on the inner side of the metal conductive sheet 201; a conductive member 203 is installed on the inner end of the connector 202 passing through the guide rail 2 and the side of the protective cover 102; both ends of the conductive member 203 are installed between the battery fixing plate 1 and the battery fixing cover 101 , and the inner side of the conductive member 203 is connected to the catalyst layer 107; a positioning slide bar 204 is slidably installed in the slot on the side of the guide rail 2; a mounting slide plate 205 is installed on the outer side of the positioning slide bar 204; two mounting holes are provided on the outer side of the mounting slide plate 205, and a positioning inner groove 206 is provided inside the mounting slide plate 205 and the positioning slide bar 204; a clamping plate 207 is installed on the side end of the positioning inner groove 206 through a spring; the outer end of the clamping plate 207 is inserted into the slot on the side of the metal conductive sheet 201; a guide is installed on the inner side of the clamping plate 207 The guide plate 208 is provided with a mounting groove, which coincides with the mounting hole on the mounting plate 205, and a guide block 209 is provided inside the mounting groove on the guide plate 208, wherein the side of the guide block 209 is an inclined structure. During the operation of the hydrogen fuel cell, the two conducting members 203 are respectively connected to the two catalytic layers 107, and serve as the positive and negative electrodes of the battery to conduct electricity. The electricity is conducted to the metal conducting sheet 201 through the connecting member 202, and the mounting hole on the mounting plate 205 conducts electricity to the external equipment. When connecting, the installation slide 205 drives the positioning slide bar 204 to move along the groove on the side of the guide rail 2, so that the installation slide 205 is in a suitable position, and the installation bolts are inserted into the installation holes on the top of the installation slide 205 to push the guide block 209 in the installation groove on the guide plate 208 to move, so that the guide block 209 drives the card plate 207 to move inside the positioning inner groove 206, and the outer side of the card plate 207 is inserted into the groove on the side of the metal conductive sheet 201 to fix the position of the installation slide 205 and ensure the stable transmission of electricity.

[0037] Embodiment 3, on the basis of embodiment 1, a heating temperature control module 3 and a catalyst detection module 301 are installed between the battery fixing plate 1 and the battery fixing cover 101; the front sides of the heating temperature control module 3 and the catalyst detection module 301 penetrate the protective cover 102; the detection layer 303 is installed on the upper and lower sides of the catalyst layer 107; the outer end of the detection layer 303 is installed with a concentrator 302; the concentrator 302 is connected to the inner side of the catalyst detection module 301; the inner side of the heating temperature control module 3 is installed with a driving member 304; the inner end of the driving member 304 is installed with a heating wire 305; the heating wire 305 is installed inside the catalyst layer 107, and the hydrogen fuel cell is in the process of operation. A detection layer 303 and a heating wire 305 are provided on each catalytic layer 107. The temperature of the catalytic layer 107 is adjusted by controlling the heating wire 305 at the inner end of the driving member 304 using the heating temperature control module 3. The catalytic activity of the catalytic layer 107 is detected through the detection layers 303 on both sides of the inner end of the concentrator 302 on the inner side of the catalyst detection module 301. By measuring the adsorption and desorption of gas by the catalyst at different temperatures, the number, distribution and adsorption capacity of active sites on the catalyst surface can be understood, which is helpful to evaluate the activity of the catalyst and its stability during the reaction. The detection can be completed without removing the catalytic layer 107, and the structure is simple and the operation is convenient.

[0038] The working principle of this embodiment is as follows: when in use, hydrogen flows into the guide ring groove at the bottom of the hydrogen diffusion layer 106 through the guide cover 103 at one end of the protective cover 102, and oxygen flows into the guide ring groove at the top of the oxygen diffusion layer 109 through the guide cover 103 at the other end of the protective cover 102. When hydrogen and oxygen flow into the guide ring groove at the bottom of the hydrogen diffusion layer 106 and the guide ring groove at the top of the oxygen diffusion layer 109 respectively, under the condition of relatively constant airflow, the position of the movable plate 1014 will not change under the action of the telescopic member 1015. When the airflow suddenly increases, the arc structure of the movable plate 1014 is pushed by the airflow and moves to both sides, reducing the space for the airflow to flow, so that the constant airflow flows into the guide ring groove. When hydrogen passes through the catalyst layer 107 above, the hydrogen molecules are decomposed into positively charged hydrogen ions and electrons under the catalytic action. The hydrogen ions have the selective ability to pass through the exchange membrane 108, while the electrons flow to the cathode conductive member 203 through the external circuit. When oxygen molecules pass through the catalyst layer 107 below, the oxygen ions generated under the catalytic action combine with the hydrogen ions transmitted from the anode through the exchange membrane 108 and the electrons transmitted through the external circuit, and a reduction reaction occurs to generate water. The water flows into the collector 1010 through the slot at the bottom of the oxygen diffusion layer 109. The water is collected together and discharged through the collection pipe 1011 and the drainage pipe 1012. The two conductive parts 203 are respectively connected to the two catalyst layers 107 as the positive and negative electrodes of the battery to conduct electricity. The installation slide 205 drives the positioning slide bar 204 to move along the slot on the side of the guide rail 2 to a suitable position. The installed bolts are inserted into the installation holes on the top of the installation slide 205 to push the guide block 209 in the installation slot on the guide plate 208 to move. The guide block 209 drives the card plate 207 to move inside the positioning inner slot 206 and is inserted into the slot on the side of the metal conductive sheet 201 to fix the position of the installation slide 205, so as to ensure stable transmission of electricity.

[0039] A detection layer 303 and a heating wire 305 are provided on each catalyst layer 107. The heating wire 305 adjusts the temperature of the catalyst layer 107. The detection layers 303 on both sides detect the catalyst activity of the catalyst layer 107. By measuring the adsorption and desorption of gas by the catalyst at different temperatures, it is helpful to evaluate the activity of the catalyst and ensure the normal operation of the hydrogen fuel cell.

[0040] In this article, there are a few points to note:

[0041] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0042] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0043] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A hydrogen fuel cell for power supply, comprising: A battery fixing plate (1) and a battery fixing cover (101), wherein the battery fixing cover (101) is installed above the battery fixing plate (1); characterized in that a protective cover (102) is installed between the battery fixing plate (1) and the battery fixing cover (101); a support plate (105) is also installed between the battery fixing plate (1) and the battery fixing cover (101); the support plate (105) is located inside the protective cover (102); hydrogen diffusion devices are installed in sequence in groups between the battery fixing plate (1) and the battery fixing cover (101); layer (106), a catalytic layer (107), an exchange membrane (108), a catalytic layer (107), an oxygen diffusion layer (109) and a collector cover (1010), wherein the catalytic layer (107) is installed at the bottom of the hydrogen diffusion layer (106), the exchange membrane (108) is arranged at the bottom of the catalytic layer (107), the catalytic layer (107) is also arranged at the bottom of the exchange membrane (108), the oxygen diffusion layer (109) is installed at the bottom of the catalytic layer (107), and the collector cover (1010) is installed at the bottom of the oxygen diffusion layer (109); A guide rail (2) is installed on the outer side of the protective cover (102); a groove is provided on the side of the guide rail (2), and a metal conductive sheet (201) is installed inside the groove, wherein the side of the metal conductive sheet (201) is provided with a plurality of evenly arranged grooves; a heating temperature control module (3) and a catalyst detection module (301) are installed between the battery fixing plate (1) and the battery fixing cover (101); the front sides of the heating temperature control module (3) and the catalyst detection module (301) penetrate the protective cover (102); a detection layer (303) is installed on the upper and lower sides of the catalyst layer (107); a concentrator (302) is installed on the outer end of the detection layer (303); the concentrator (302) is connected to the inner side of the catalyst detection module (301); a driving member (304) is installed on the inner side of the heating temperature control module (3); a heating wire (305) is installed on the inner end of the driving member (304); and the heating wire (305) is installed inside the catalyst layer (107).

2. A hydrogen fuel cell for power supply according to claim 1, characterized in that: The bottom of the hydrogen diffusion layer (106) and the top of the oxygen diffusion layer (109) are both provided with guide ring grooves; guide covers (103) are installed on both sides of the protective cover (102); a plurality of spoiler rods (104) are provided on the inner side of the guide cover (103), and the interiors of the two guide covers (103) are respectively connected to the side ends of the guide ring grooves on the hydrogen diffusion layer (106) and the oxygen diffusion layer (109).

3. A hydrogen fuel cell for power supply according to claim 2, characterized in that: The bottom of the oxygen diffusion layer (109) is evenly provided with a plurality of grooves; the inner side of the collecting cover (1010) is connected to the grooves at the bottom of the oxygen diffusion layer (109), and a collecting pipe (1011) is installed at the side end of the collecting cover (1010); a drainage pipe (1012) is installed at the outer end of the collecting pipe (1011); and the bottom of the drainage pipe (1012) passes through the protective cover (102).

4. A hydrogen fuel cell for power supply according to claim 3, characterized in that: Positioning members (1013) are installed inside the side ends of the guide ring grooves on the hydrogen diffusion layer (106) and the oxygen diffusion layer (109); two movable plates (1014) are rotatably installed on the outer ends of the positioning members (1013); telescopic members (1015) are installed on both sides of the positioning members (1013); and the side ends of the telescopic members (1015) are connected to the outer sides of the movable plates (1014).

5. A hydrogen fuel cell for power supply according to claim 4, characterized in that: A connecting piece (202) is installed on the inner side of the metal conductive sheet (201); the inner end of the connecting piece (202) penetrates the guide rail (2) and the side of the protective cover (102) and is installed with a conductive piece (203); both ends of the conductive piece (203) are installed between the battery fixing plate (1) and the battery fixing cover (101), and the inner side of the conductive piece (203) is connected to the catalyst layer (107).

6. A hydrogen fuel cell for power supply according to claim 5, characterized in that: A positioning slide bar (204) is slidably mounted in the slot on the side of the guide slide rail (2); a mounting slide plate (205) is mounted on the outer side of the positioning slide bar (204); two mounting holes are arranged on the outer side of the mounting slide plate (205), and a positioning inner groove (206) is arranged inside the mounting slide plate (205) and the positioning slide bar (204); a clamping plate (207) is mounted on the side end of the positioning inner groove (206) via a spring; and the outer end of the clamping plate (207) is inserted into the slot on the side of the metal conductive sheet (201).

7. A hydrogen fuel cell for power supply according to claim 6, characterized in that: A guide plate (208) is installed on the inner side of the clamping plate (207); a mounting groove is provided on the guide plate (208), the mounting groove coincides with the mounting hole on the mounting slide plate (205), and a guide block (209) is provided inside the mounting groove on the guide plate (208).

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