Battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle

Abstract

The application discloses a battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle, which is characterized by comprising a battery cabin, a composite solid-state hydrogen storage device and a hydrogen fuel cell device arranged in the battery cabin, the composite solid-state hydrogen storage device being connected with the hydrogen fuel cell device through a gas circuit to provide hydrogen for the hydrogen fuel cell device, the hydrogen fuel cell device being electrically connected with a driving device to provide driving force for the electric bicycle, and a control device being electrically connected with the composite solid-state hydrogen storage device, the hydrogen fuel cell device and the driving device, wherein the composite solid-state hydrogen storage device provides hydrogen for the hydrogen fuel cell device according to the output voltage of the hydrogen fuel cell device to meet the power requirement of the driving device. The hydrogen fuel cell device is used to replace the conventional lead-acid battery and lithium battery, and the composite solid-state hydrogen storage device is used to provide hydrogen for the hydrogen fuel cell device, so that the electric bicycle has the advantages of high efficiency, cleanness and zero emission, and the problems of short endurance mileage and inconvenient charging of the existing electric bicycle are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the hydrogen fuel cell technology field, in particular to a battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle. BACKGROUND

[0002] Electric vehicles are light, moderate speed, cheap, no noise and exhaust pollution, and small parking space, which can greatly improve the traffic efficiency of non-motorized lanes, and are very suitable for single short-distance travel in cities, and have incomparable advantages over other means of transportation. In the past 10 years, China's electric vehicle market has shown rapid growth. Now the number of electric vehicles in China is more than 14 million. According to the demand survey of citizens in various cities in China, as high as 76% of citizens have the demand to use electric vehicles as a means of transportation, and the population of China continues to grow, and there is a considerable number of bicycle users, which is also the potential user of future electric bicycles. This has great growth potential for the development of China's bicycle industry. In addition, some events have put forward urgent requirements for environmental protection and national oil safety, promoting the progress of new energy technology worldwide, and the social construction of new electric bicycles is also imperative.

[0003] The current market electric bicycle power reserve is mainly borne by lead-acid batteries and lithium-ion batteries, both of which have the problems of short endurance, slow charging, difficult charging, and life attenuation, and lithium-ion batteries have certain safety hazards and expensive replacement prices; The pollution of lead-acid batteries and lithium batteries in the early and late stages is also a long-term environmental problem. SUMMARY

[0004] In view of the shortcomings of the prior art, the present application provides a battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle, which uses hydrogen fuel cell devices instead of traditional lead-acid batteries and lithium batteries, and uses composite solid-state hydrogen storage devices to provide hydrogen for it, and has the advantages of high efficiency, cleanliness and zero emissions.

[0005] The present application adopts the following technical solutions:

[0006] A battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle, comprising a bicycle body and a battery cabin, a driving device and a control device arranged on the bicycle body, a composite solid-state hydrogen storage device and a hydrogen fuel cell device are arranged in the battery cabin, the composite solid-state hydrogen storage device is connected with the hydrogen fuel cell device through a gas path to provide hydrogen for the hydrogen fuel cell device, the hydrogen fuel cell device is electrically connected with the driving device to provide driving force for the electric bicycle; the control device is electrically connected with the composite solid-state hydrogen storage device, the hydrogen fuel cell device and the driving device respectively, and the composite solid-state hydrogen storage device provides hydrogen for the hydrogen fuel cell device according to the output voltage of the hydrogen fuel cell device to meet the power demand of the driving device.

[0007] The composite solid-state hydrogen storage device is arranged below the seat of the bicycle body, and the hydrogen fuel cell device is arranged at the pedal of the bicycle body.

[0008] The composite solid-state hydrogen storage device comprises a solid-state hydrogen storage tank and a low-pressure buffer tank, the solid-state hydrogen storage tank and the low-pressure buffer tank are connected through a first gas path for passing the hydrogen generated by the solid-state hydrogen storage tank into the low-pressure buffer tank; a first tank mouth combination valve is arranged at the tank mouth of the solid-state hydrogen storage tank, a second tank mouth combination valve is arranged at the tank mouth of the low-pressure buffer tank, and the outlets of the first tank mouth combination valve and the second tank mouth combination valve are connected with the hydrogen fuel cell device through a second gas path.

[0009] The first tank mouth combination valve and the second tank mouth combination valve are both one-in-two-out ball valves, comprising an air inlet, a straight-through port and a pressure-reducing one-way outlet, the air inlets are connected with the tank mouths of the solid-state hydrogen storage tank and the low-pressure buffer tank respectively, the straight-through ports are connected with both ends of the first gas path respectively, and the pressure-reducing one-way outlets are connected with the hydrogen fuel cell device through the second gas path.

[0010] A first electromagnetic valve for controlling the opening and closing of the gas path and a first one-way valve for controlling the flow direction are arranged on the first gas path; a flow controller and a second one-way valve for controlling the flow direction are arranged on the second gas path, the flow controller is electrically connected with the control device to quantitatively control the hydrogen entering the hydrogen fuel cell device.

[0011] The first tank mouth combination valve and the second tank mouth combination valve are both one-in-two-out ball valves, and the pressure-reducing one-way outlets thereof are connected with the second gas path through a second electromagnetic valve and a third electromagnetic valve respectively.

[0012] The solid-state hydrogen storage tank is provided with a heating belt, a first pressure sensor and a temperature sensor for monitoring the internal pressure and temperature of the monitor, the heating belt is electrically connected with the hydrogen fuel cell device for providing electric energy for the heating belt, the low-pressure buffer tank is provided with a second pressure sensor for monitoring the internal pressure of the monitor, and the control device is electrically connected with the first tank port combination valve, the second tank port combination valve, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the first pressure sensor, the temperature sensor and the second pressure sensor.

[0013] The hydrogen fuel cell device comprises a power generation module and a stack state detection device, the stack state detection device is electrically connected with the control device, and the sensors and electromagnetic valves on the composite solid-state hydrogen storage device electrically connected with the control system cooperate to ensure the stability of power output.

[0014] The stack state detection device comprises a stack temperature sensor, a stack voltage sensor and a stack current sensor.

[0015] The bicycle body is also provided with a display screen, the display screen is electrically connected with the control device, and is used for displaying the vehicle running state, the hydrogen pressure, the temperature in the composite solid-state hydrogen storage device and the released hydrogen amount.

[0016] The technical scheme of the present application has the following advantages:

[0017] A、The composite solid-state hydrogen storage device and the hydrogen fuel cell device are arranged in the battery cabin of the bicycle body, the composite solid-state hydrogen storage device can ensure high hydrogen storage capacity and provide ultra-high purity hydrogen for the hydrogen fuel cell device, and hydrogen charging is fast. The present application uses clean energy hydrogen carrier, uses hydrogen fuel cell device instead of traditional lead-acid battery and lithium battery, uses hydrogen as reducing agent and oxygen as oxidizing agent, when the battery works, only water is produced without waste gas emission, and the present application has the advantages of high efficiency, cleanliness and zero emission. The present application solves the problems of short endurance mileage and inconvenient charging of the existing electric bicycle, and ensures the stable operation of daily use electrical equipment under the premise of normal driving of the bicycle.

[0018] B、The present application realizes stable hydrogen output, high hydrogen storage capacity, ultra-high hydrogen supply purity and reusability through cooperation of the low-pressure buffer tank and the solid-state hydrogen storage tank.

[0019] C、The present application realizes the fuel cell system without battery assistance through reasonable pipeline design, ball valve setting and cooperation of the low-pressure buffer tank and the solid-state hydrogen storage tank, and completely eliminates the pollution of the whole industry chain when the battery exists.

[0020] D、The present application can realize rapid starting without battery, and maintain sufficient power output power under various road conditions. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the specific embodiments of the present application, the following will briefly introduce the drawings required to be used in the specific embodiments. Obviously, the drawings described in the following description are some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative labor based on the embodiments in the present application also belong to the scope of protection of the present application.

[0022] Figure 1 The overall structure of the battery electric bicycle of the present application is shown in the figure.

[0023] Figure 2 The structure of the composite solid-state hydrogen storage tank and the hydrogen fuel cell system in the present application is shown in the figure (1).

[0024] Figure 3 The structure of the composite solid-state hydrogen storage tank and the hydrogen fuel cell system in the present application is shown in the figure (2).

[0025] Figure 4 The principle of the power supply system of the battery electric bicycle of the present application is shown in the figure.

[0026] The figure is identified as follows:

[0027] 1-bicycle body, 11-display screen, 12-headlight, 13-seat, 14-wheel; 2-battery cabin; 3-composite solid-state hydrogen storage device, 31-solid-state hydrogen storage tank, 311-first tank port combination valve, 312-second electromagnetic valve, 313-heating belt, 314-first pressure sensor, 315-temperature sensor, 32-low-pressure buffer tank, 321-second tank port combination valve, 322-third electromagnetic valve, 323-second pressure sensor, 33-first gas path, 331-first electromagnetic valve, 332-first check valve, 34-second gas path, 341-flow controller, 342-second check valve; 4-hydrogen fuel cell device, 41-power generation module, 42-stack temperature sensor, 43-stack voltage sensor, 44-stack current sensor; 5-driving device; 6-control device, 61-DC-DC voltage stabilizer. Specific embodiments

[0028] The technical solutions of the present application will be described in detail below in combination with the drawings. Obviously, the described embodiments are some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As shown in Figure 1-Figure 2 The present application provides a battery-assisted composite solid-state hydrogen storage fuel cell electric bicycle, which comprises a bicycle body 1 and a battery cabin 2, a driving device 5 and a control device 6 arranged on the bicycle body 1. The battery cabin 2 is provided with a composite solid-state hydrogen storage device 3 and a hydrogen fuel cell device 4. The composite solid-state hydrogen storage device 3 is arranged below the seat of the bicycle body 1, and the hydrogen fuel cell device 4 is arranged at the pedal of the bicycle body 1. The composite solid-state hydrogen storage device 3 is connected with the hydrogen fuel cell device 4 through a gas circuit to provide hydrogen for the hydrogen fuel cell device 4. The hydrogen fuel cell device 4 is electrically connected with the driving device 5 to provide driving force for the electric bicycle. The control device 6 is arranged below the headlamp 12 of the bicycle body 1 and is electrically connected with the composite solid-state hydrogen storage device 3, the hydrogen fuel cell device 4 and the driving device 5 respectively. The composite solid-state hydrogen storage device 3 provides hydrogen for the hydrogen fuel cell device 4 according to the output voltage of the hydrogen fuel cell device 4 to meet the power demand of the driving device 5. The present application sets the composite solid-state hydrogen storage device and the hydrogen fuel cell device in the battery cabin of the bicycle body. The composite solid-state hydrogen storage device can ensure high hydrogen storage capacity and provide ultra-pure hydrogen for the hydrogen fuel cell device, and the hydrogen charging is fast. The present application uses clean energy carrier, uses hydrogen fuel cell device instead of traditional lead-acid battery and lithium battery, uses hydrogen as reducing agent and oxygen as oxidizing agent. When the battery works, the only product is water, and there is no waste gas emission, which has the advantages of high efficiency, cleanliness and zero emission. The present application solves the problems of short endurance mileage and inconvenient charging of existing electric bicycles, and ensures the stable operation of daily electrical equipment under the premise of normal driving of the bicycle.

[0032] Further, as Figure 3 As shown, the composite solid hydrogen storage device 3 comprises a solid hydrogen storage tank 31 and a low-pressure buffer tank 32, which are connected through a first gas path 33 for passing the hydrogen generated by the solid hydrogen storage tank 31 into the low-pressure buffer tank 32. The first gas path 33 is provided with a first electromagnetic valve 331 for controlling the opening and closing of the gas path and a first one-way valve 332 for controlling the flow direction of the gas, and the first one-way valve 332 is configured to allow the hydrogen to flow from the solid hydrogen storage tank 31 to the low-pressure buffer tank 32 only, but not to flow in the opposite direction. The solid hydrogen storage tank 31 is provided with a first tank opening combination valve 311 at the tank opening, and the low-pressure buffer tank 32 is provided with a second tank opening combination valve 321 at the tank opening. Both the first tank opening combination valve 311 and the second tank opening combination valve 321 are one-in-two-out ball valves, which comprise an inlet, a straight-through outlet and a pressure-reducing one-way outlet. The inlets of the first tank opening combination valve 311 and the second tank opening combination valve 321 are connected to the tank openings of the solid hydrogen storage tank 31 and the low-pressure buffer tank 32 respectively, the straight-through outlets are connected to the two ends of the first gas path 33 respectively, and the pressure-reducing one-way outlets are connected to the hydrogen fuel cell device 4 through a second electromagnetic valve 312 and a third electromagnetic valve 322 respectively, and further connected to the hydrogen fuel cell device 4 through a second gas path 34. The second gas path 34 is provided with a flow controller 341 and a second one-way valve 342 for controlling the flow direction of the gas, and the flow controller 341 is electrically connected to the control device 6 for quantitatively controlling the hydrogen entering the hydrogen fuel cell device 4. The second one-way valve 342 mainly plays a safety role in blocking the composite solid hydrogen storage device 3 and the hydrogen fuel cell device 4, so as to prevent the unsafe factors from flowing into the composite solid hydrogen storage device 3 in case of an accident.

[0033] In the present application, the tank bodies of the solid hydrogen storage tank 31 and the low-pressure buffer tank 32 comprise, from the inside to the outside, an inner container, a winding layer and an outer shell. The inner container is made of aluminum alloy seamless material and / or aluminum alloy inner container, the winding layer is made of carbon fiber winding composite material, and the outer shell is made of stainless steel material. Compared with the common steel cylinder, the tank body can further enhance the safety, and the weight can be reduced by 40%-70%. At the same time, it has the characteristics of high safety and easy to carry, and the aluminum alloy has unique corrosion resistance after oxidation.

[0034] The solid hydrogen storage tank 31 is provided with a heating belt 313, a first pressure sensor 314 and a temperature sensor 315 for monitoring the internal pressure and temperature of the tank. The heating belt 313 is electrically connected to the hydrogen fuel cell device 4 for providing power for the heating belt 313. The low-pressure buffer tank 32 is provided with a second pressure sensor 323 for monitoring the internal pressure of the tank. The control device 6 is electrically connected to the first tank opening combination valve 311, the second tank opening combination valve 321, the first electromagnetic valve 331, the second electromagnetic valve 312, the third electromagnetic valve 322, the first pressure sensor 314, the temperature sensor 315 and the second pressure sensor 323.

[0035] The first pressure sensor 314 and the second pressure sensor 323 are respectively provided with two pressure thresholds, a minimum threshold and a maximum threshold. According to the actual production quality threshold of the solid-state hydrogen storage tank 31 and the low-pressure buffer tank 32, considering safety and actual use experience, the minimum threshold of the low-pressure buffer tank 32 is 0.15 MPa, and the maximum threshold is 0.50 MPa. The minimum threshold of the solid-state hydrogen storage tank 31 is 0.10 MPa, and the maximum threshold is 0.60 MPa. When the first pressure sensor 314 detects that the pressure is lower than the minimum threshold 0.10 MPa, the control device 6 controls the heating belt 313 to start working to supplement hydrogen. When the pressure reaches the maximum threshold 0.60 MPa, the heating is stopped. The temperature sensor 315 is responsible for monitoring the internal temperature of the solid-state hydrogen storage tank 31, and adjusts the working temperature of the heating belt 313 according to the hydrogen demand. The low-pressure buffer tank 32 is used to provide hydrogen for the hydrogen fuel cell device 4 to start the bicycle to achieve the purpose of providing power. When the pressure is lower than the minimum threshold 0.15 MPa, the control device 6 controls the first electromagnetic valve 331 to open, and hydrogen is supplemented from the solid-state hydrogen storage tank 31 to the low-pressure buffer tank 32 through the first gas path 33 to ensure hydrogen storage for the next start.

[0036] The hydrogen fuel cell device 4 includes a power generation module 41 and a stack state detection device. The power generation module 41 is a wind-cooled fuel cell stack matched with a proton exchange membrane. The stack state detection device is electrically connected with the control device 6, and cooperates with the sensors and electromagnetic valves on the composite solid-state hydrogen storage device 3 electrically connected with the control system 6 to ensure the stability of power output. The stack state detection device includes a stack temperature sensor 42, a stack voltage sensor 43, and a stack current sensor 44.

[0037] The driving device 5 includes an electric motor and a transmission device. The electric motor adopts an alternating current motor or a permanent magnet motor controlled in an SPWM or PWM mode. The transmission device is mechanically connected with the rear wheel at the bottom of the bicycle body 1 and is responsible for kinetic energy transmission. After the whole vehicle is stopped, the hydrogen in the composite solid-state hydrogen storage device 3 can enter the power generation reaction chamber of the power generation module 41 of the hydrogen fuel cell device 4 and cool the catalyst to prevent the catalyst from being oxidized.

[0038] The bicycle body 1 is also provided with a display screen 11 electrically connected with the control device 6, which is used to display the vehicle running state, the hydrogen pressure, temperature, and released hydrogen amount in the composite solid-state hydrogen storage device 3.

[0039] As Figure 2 , Figure 4As shown, the working principle of the embodiment is as follows: when the electric bicycle is started, the low-pressure buffer tank 32 provides hydrogen for the hydrogen fuel cell device 4 to generate electricity to make the electric bicycle run normally, and at the same time, the electric energy is supplied to the heating belt 313 of the solid-state hydrogen storage tank 31 to supply power to it, and after the first pressure sensor 314 and the second pressure sensor 323 reach the corresponding threshold value, the control device 6 controls the opening and closing of each electromagnetic valve to make the composite solid-state hydrogen storage device 3 ensure sufficient hydrogen, if the electric vehicle power consumption is large, such as uphill or maintaining high-speed driving, then the control device 6 controls the electromagnetic valves of the solid-state hydrogen storage tank 31 and the low-pressure buffer tank 32 to provide hydrogen to the hydrogen fuel cell device 4 together; if the electric vehicle power consumption is small, then the control device 6 controls the electromagnetic valve of the solid-state hydrogen storage tank 31 to provide hydrogen to the hydrogen fuel cell device 4 according to the demand power of the driving device 5, the pressure sensor of the solid-state hydrogen storage tank 31 and the low-pressure buffer tank 32 and the stack state detection device of the hydrogen fuel cell device 4, each electric device and the hydrogen fuel cell device 4 are connected in sequence through the DC-DC stabilizer 61 of the control device 6, to ensure the power supply of the whole vehicle.

[0040] The present application realizes the fuel cell system without battery assistance through reasonable pipeline design, ball valve setting and cooperation of the low-pressure buffer tank and the solid-state hydrogen storage tank, and completely says goodbye to the pollution of the whole industry chain when the battery exists. In addition, the present application can realize rapid starting without battery, and maintain sufficient power output power under various road conditions.

[0041] Obviously, the above embodiment is only an example for clear illustration, and is not a limitation on the implementation mode. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the implementation modes are not enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A battery-free composite solid-state hydrogen storage fuel cell electric bicycle, comprising a bicycle body (1), a battery compartment (2) arranged on the bicycle body (1), a driving device (5) and a control device (6), characterized in that: A composite solid-state hydrogen storage device (3) and a hydrogen fuel cell device (4) are provided in the battery compartment (2); the composite solid-state hydrogen storage device (3) is connected to the hydrogen fuel cell device (4) via a gas path to provide hydrogen to the hydrogen fuel cell device (4); the hydrogen fuel cell device (4) is electrically connected to the driving device (5) to provide driving force for the electric bicycle; the control device (6) is electrically connected to the composite solid-state hydrogen storage device (3), the hydrogen fuel cell device (4) and the driving device (5) respectively, and controls the composite solid-state hydrogen storage device (3) to provide hydrogen to the hydrogen fuel cell device (4) according to the output voltage of the hydrogen fuel cell device (4) to meet the power demand of the driving device (5); The composite solid-state hydrogen storage device (3) comprises a solid-state hydrogen storage tank (31) and a low-pressure buffer tank (32); the solid-state hydrogen storage tank (31) and the low-pressure buffer tank (32) are connected via a first gas path (33) for passing hydrogen generated by the solid-state hydrogen storage tank (31) into the low-pressure buffer tank (32); a first tank port combination valve (311) is provided at the tank port of the solid-state hydrogen storage tank (31), and a second tank port combination valve (321) is provided at the tank port of the low-pressure buffer tank (32); outlets of the first tank port combination valve (311) and the second tank port combination valve (321) are connected to the hydrogen fuel cell device (4) via a second gas path (34).

2. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 1, characterized in that: The composite solid-state hydrogen storage device (3) is arranged below the seat of the bicycle body (1), and the hydrogen fuel cell device (4) is arranged at the pedal of the bicycle body (1).

3. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 2, characterized in that: The first tank port combination valve (311) and the second tank port combination valve (321) are both one-inlet-two-outlet ball valves, including an air inlet, a straight-through port, and a pressure-reducing one-way output port. The air inlet is respectively connected to the tank ports of the solid-state hydrogen storage tank (31) and the low-pressure buffer tank (32), the straight-through port is respectively connected to the two ends of the first gas path (33), and the pressure-reducing one-way output port is connected to the hydrogen fuel cell device (4) through the second gas path (34).

4. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 3, characterized in that: The first gas circuit (33) is provided with a first solenoid valve (331) for controlling the gas circuit switch and a first one-way valve (332) for controlling the gas flow direction; the second gas circuit (34) is provided with a flow controller (341) and a second one-way valve (342) for controlling the gas flow direction, and the flow controller (341) is electrically connected to the control device (6) for quantitatively controlling the hydrogen entering the hydrogen fuel cell device (4).

5. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 4, characterized in that: The first tank port combination valve (311) and the second tank port combination valve (321) are both one-inlet, two-outlet ball valves, and their pressure-reducing one-way output ports are connected to the second gas path (34) via the second solenoid valve (312) and the third solenoid valve (322), respectively.

6. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 5, characterized in that: The solid-state hydrogen storage tank (31) is provided with a heating belt (313), a first pressure sensor (314) and a temperature sensor (315) for monitoring the internal pressure and temperature of the device. The heating belt (313) is electrically connected to the hydrogen fuel cell device (4) to provide electric energy for the heating belt (313). The low-pressure buffer tank (32) is provided with a second pressure sensor (323) for monitoring the internal pressure of the device. The control device (6) is electrically controlled and connected with the first tank port combination valve (311), the second tank port combination valve (321), the first solenoid valve (331), the second solenoid valve (312), the third solenoid valve (322), the first pressure sensor (314), the temperature sensor (315) and the second pressure sensor (323).

7. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 6, characterized in that: The hydrogen fuel cell device (4) includes a power generation module (41) and a stack state detection device, wherein the stack state detection device is electrically connected to the control device (6). The stability of the power output is ensured through the coordinated action of the sensor and the solenoid valve on the composite solid-state hydrogen storage device (3) electrically connected to the control device (6).

8. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 7, characterized in that: The stack state detection device comprises a stack temperature sensor (42), a stack voltage sensor (43), and a stack current sensor (44).

9. The battery-free composite solid-state hydrogen storage fuel cell electric bicycle according to claim 1, characterized in that: The bicycle body (1) is further provided with a display screen (11), which is electrically connected to the control device (6) and is used to display the vehicle operating status, the hydrogen pressure and temperature in the composite solid-state hydrogen storage device (3), and the amount of released hydrogen.

Images