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Hydrogen Electric Car Key Elements
"On Hydrogen Electric Vehicles"
Hydrogen electric vehicles are the emerging means of transportation today. They use hydrogen as the source and electricity as the driving force, and have many advantages. They are gradually becoming important in the transportation revolution of the world.
There are three key elements of hydrogen electric vehicles. One is the hydrogen source system. This is the beginning of power, and it is necessary to ensure the efficient production, safe storage and stable supply of hydrogen. Hydrogen production may be derived from hydrolysis, which uses electricity to split water into hydrogen and oxygen, and the process is clean and pollution-free; or it may be obtained from fossil fuel reforming, but carbon emissions need to be controlled in this way. As for storage, high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage and solid hydrogen storage have their own advantages and disadvantages. Although high-pressure gaseous state is convenient, high-strength containers are required; low-temperature liquid energy consumption is quite high; solid-state hydrogen storage is waiting for technological breakthroughs to increase hydrogen storage density and hydrogen absorption rate.
The second is the fuel cell system. This is the core of hydrogen-to-electricity conversion, generating electricity by hydrogen-oxygen chemical reaction. Proton exchange membrane fuel cells are lightweight and efficient, start quickly, and are suitable for vehicles. However, their cost is high, platinum catalysts are scarce and easy to be poisoned, and their durability needs to be improved. In order to solve this dilemma, researchers are committed to the development of new materials, finding alternative catalysts, optimizing battery structures, and expecting to reduce costs and increase efficiency and extend their service life.
The third is the electric drive system. After getting electricity, it needs to be efficiently transmitted to the drive wheels. The performance of the motor is the key, and its power density, torque response and speed regulation range are related to the power and control of the vehicle. In addition, the power management system cannot be ignored. It is necessary to accurately allocate power to ensure the coordinated operation of various components and achieve energy-saving effects.
To make hydrogen electric vehicles widely available in the world, many problems still need to be solved. Infrastructure buildings bear the brunt, and hydrogen refueling stations are scarce, which seriously limits their promotion. Furthermore, the cost remains high, which discourages consumers. However, with the advance of technology, with time, it is hoped that hydrogen electric vehicles will add color to the green of transportation and the beauty of life.
Hydrogen electric vehicles are the emerging means of transportation today. They use hydrogen as the source and electricity as the driving force, and have many advantages. They are gradually becoming important in the transportation revolution of the world.
There are three key elements of hydrogen electric vehicles. One is the hydrogen source system. This is the beginning of power, and it is necessary to ensure the efficient production, safe storage and stable supply of hydrogen. Hydrogen production may be derived from hydrolysis, which uses electricity to split water into hydrogen and oxygen, and the process is clean and pollution-free; or it may be obtained from fossil fuel reforming, but carbon emissions need to be controlled in this way. As for storage, high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage and solid hydrogen storage have their own advantages and disadvantages. Although high-pressure gaseous state is convenient, high-strength containers are required; low-temperature liquid energy consumption is quite high; solid-state hydrogen storage is waiting for technological breakthroughs to increase hydrogen storage density and hydrogen absorption rate.
The second is the fuel cell system. This is the core of hydrogen-to-electricity conversion, generating electricity by hydrogen-oxygen chemical reaction. Proton exchange membrane fuel cells are lightweight and efficient, start quickly, and are suitable for vehicles. However, their cost is high, platinum catalysts are scarce and easy to be poisoned, and their durability needs to be improved. In order to solve this dilemma, researchers are committed to the development of new materials, finding alternative catalysts, optimizing battery structures, and expecting to reduce costs and increase efficiency and extend their service life.
The third is the electric drive system. After getting electricity, it needs to be efficiently transmitted to the drive wheels. The performance of the motor is the key, and its power density, torque response and speed regulation range are related to the power and control of the vehicle. In addition, the power management system cannot be ignored. It is necessary to accurately allocate power to ensure the coordinated operation of various components and achieve energy-saving effects.
To make hydrogen electric vehicles widely available in the world, many problems still need to be solved. Infrastructure buildings bear the brunt, and hydrogen refueling stations are scarce, which seriously limits their promotion. Furthermore, the cost remains high, which discourages consumers. However, with the advance of technology, with time, it is hoped that hydrogen electric vehicles will add color to the green of transportation and the beauty of life.
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