Toyota Mirai Hydrogen Fuel Cell Vehicle
Author: Source: Datetime: 2016-12-03 11:01:42
Pure electric vehicles are driven by electricity to drive the car normal, naturally there will be no problem of fuel vehicle exhaust pollution. But have we ever thought that regenerative clean energy - electricity, most of which is generated by non-renewable energy sources, such as coal, through thermal power plants? In the face of the tall chimney, it is difficult to come to this is a clean energy. "If you look at the way electricity is being calculated today, there is little point in EV," says Mazda's president, who sees his attitude toward pure electric cars.
Similarly, the mainstream plug-in electric vehicles and hybrid cars are mostly used lead-acid batteries, nickel-chromium batteries or lifepo4 battery, these batteries are generally longer charging time, even Tesla built 85KWh "super-charge Pile "(compared to home 8KWh wall-mounted charger) also need to charge about 40 minutes before they can get more than 300 kilometers away. In addition, the life of these batteries can not be done throughout the life cycle of the car without replacement, while recycling, secondary manufacturing will produce heavy metal pollution.
Toyota, the world's leader in hybrid and new energy vehicles, has brought another solution to the world's first mass-produced hydrogen fuel cell vehicle, the Toyota Mirai.
Why choose hydrogen as a fuel? First of all, hydrogen is widely distributed in nature, water is the hydrogen "warehouse", the water content of 11%; the soil is about 1.5% hydrogen; oil, natural gas, animals and plants also contain hydrogen. Can be said to be "inexhaustible, inexhaustible." And hydrogen is also one of the chemical raw materials, past chemical plants, oil refineries in the production process are not a lot of hydrogen waste wasted. This part of the choice if the use of recycling, at least early hydrogen fuel cell vehicles listed enough to use, and other future growth in demand, a variety of hydrogen industry will also be developed, and coal-made hydrogen will produce a small number of pollution, far lower than coal combustion Power generation pollution.
Hydrogen fuel cell is the use of hydrogen can be made into a storage battery of energy, the basic principle is equivalent to the inverse reaction of electrolyzed water (electrolysis of water: water + electricity = hydrogen + oxygen + heat), the reverse reaction is: hydrogen + oxygen (oxygen in the air) = (Catalytic device) water + electric energy + heat. As long as the control of hydrogen emissions can control the amount of energy released, thus completing the whole process of hydrogen fuel cell discharge. Hydrogen fuel cells have a higher energy density (per unit volume is about 7 times the traditional lifepo4 battery pack), after the combustion will produce no harm to the environment of water. Toyota Mirai, for example, filling a full hydrogen in less than less than 5 minutes, compared to pure electric vehicle charging time is a big difference.
Compared to the average pure electric vehicles traveling 200 km on the need to charge, Toyota Mirai filling full of hydrogen after the endurance of up to 600 km. Perhaps we will take into account the Mirai carrying two hydrogen gas tank will not produce all kinds of danger, this do not worry, Toyota and even live ammunition to the hydrogen storage tank to do a number of tests, the fact that small-caliber bullets simply can not To break through the tank wall, for use 50 mm caliber sniper rifle shooting, accompanied by only gas leakage, hydrogen is non-toxic, so in case of hydrogen storage tank leak is all right, because your body will not absorb the root, the same leak Will not explode and other more serious security issues.
Toyota Mriai in December 15, 2014 in Japan officially listed. The first month of the listing of orders to reach 1200, to know Mirai in Japan, priced at 7.236 million yen (about 440,000 yuan), enjoy state subsidies, the actual cost of the consumer in 5.2 million yen (about 310,000 RMB) around. But the construction of hydrogen refueling stations require a high investment, the Japanese government has begun to vigorously support the construction of hydrogen refueling stations and a corresponding subsidy policy in 2015 has built 50 hydrogen refueling stations, 2018 before the construction of 120 hydrogen refueling stations . Nippon Oil's recently announced price of liquefied hydrogen is 1,000 yen / kg (about 53 yuan / kg). Mirai can add 5 kilograms of hydrogen, about 290 yuan, according to 650 kilometers of mileage, that is, only 5 cents per kilometer. Of course, this is the retail price, including tax, including storage and transportation costs.
Said the Toyota Mriai so many advantages, maybe someone will ask Xiaobian then this car when you can enter our daily life? First of all, the construction of hydrogen refueling station is a big problem; secondly, now vigorously support the domestic electric vehicle business, is in the development phase, trying to overturn the curve, it is necessary to immediately turn to very difficult ; There are domestic hydrogen fuel cell technology is not mature enough. But the hydrogen fuel cell vehicle production for us to open a future traffic solutions for the door, pure electric vehicle charging time is too long and the mileage is too short these two short-board hydrogen fuel cell vehicles are the perfect solution, perhaps like "Mirai" Japanese meaning "the future", like Toyota Mriai is leading the future of the car.
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