Solar power lithium electricity and hydrogen, who is the future?

Tesla that hydrogen fuel cell technology & other; Incredibly stupid & throughout; Think this road impassability, photovoltaic panels components, power generation glass is currently the most mainstream depot feint happen to coincide in lithium electricity, seem to end for hydrogen fuel. Just making out hydrogen energy density is very low, solar energy, to increase density, there are two main ways: one is the pressure, the hydrogen compression with 790 times atmospheric pressure to high pressure tank, the energy loss in the process of about 13%; Lithium battery only 0 per kilogram. 278 KWH, mostly in 0. 167 KWH, hydrogen energy density is 239 times of the lithium battery, so this advantage is rolling. After storage, need to transport hydrogen filling stations, also has two kinds: one is big centralism hydrogen, high output, but the transportation cost is high; Second, liquefaction, cooled to - In the process of 253 ℃, the hydrogen gas condenses, energy loss is great, at about 40%. And in the process of transporting hydrogen energy loss is very big also. At the scene of the popularization of hydrogen production equipment, solar panels, hydrogen mainly depends on truck and pipeline between %. But Toyota has not stopped, choose both, because the hydrogen car compete with lithium trams to real objects, not each other, but the fuel car. Don't think so, but Japan has plans to become the world's first hydrogen social & ndash; — By March 2021, the Japanese government and automobile industry will work together to build 160 filling stations, mass production of 40000 hydrogen fuel cell car. Hydrogen fuel cell car after hydrogenation, hydrogen into electricity, conversion efficiency by about 60%, and lithium trams considering ac dc conversion, efficiency is about 75%. Because of efficiency and cost issues, lithium trams are expected to use the hydrogen car costs several times, this is what the vast majority of manufacturers choose one of the reasons for lithium electricity. Is also a range of 500 kilometers, hydrogen battery vehicle weight impact is not big, lithium trams is very headache, byd tang is the prototype of the S6, vehicle weight 1. 6 tons, after converted into lithium trams, battery over 200 kg, and this still need to strengthen the body structure, it forms a vicious cycle, because of the low energy density, it needs large capacity lithium battery, and increase the weight of the car, and can reduce life, so to achieve target range, more big lithium battery capacity, so the vehicle weight soar, byd don's final weight of the car up to 2. 4 tons, this is obviously not conducive to energy conservation. Second is making hydrogen station site, the freight is low, but production is low, the production cost increased accordingly. Compression of hydrogen energy density is close to 40 KWH per kilogram, is several times higher than gasoline. Before charged facilities not popularized in substation regenerative hydrogen fuel cell car is suitable for trucks, buses, engineering mechanical cars, and even the plane, because of relatively fixed, the transportation routes for laying can network, without grid. If the traditional steam reformation or electrolytic method, the energy loss of more than 30%, while the latest of ionic membrane electrolysis efficiency can be up to 80%, battery monitoring but lithium battery charge efficiency is 99%, the gap is obvious. The present is the battery car, in fact, more than one hundred years ago have a prototype, later, for now a development of lithium battery, another is the hydrogen fuel cells. Hydrogen fuel cells is also direct conversion issues, so eventually the hydrogen of the whole cycle efficiency may not be more than 30%, if lithium trams all electricity from renewable energy, solar energy, hydrogen full cycle efficiency was only about half of the lithium electricity, but if considering the power of China 7 in coal, the lithium electricity efficiency of the whole cycle of slightly less than the hydrogen. Lithium trams, in contrast, if you don't solve the problem of energy density and the charging time, the most suitable for its application scenario, is still a streetcar, lithium battery of electric vehicles is not only used to drive. In contrast, the power grid transmission loss is only 5%. Due to reasons known to all, car fuel by governments around the world today & other; Under siege & throughout; , solar power grid, the battery cars were & other; King James & throughout; Transportation for the future of more suitable for walking, so after the last century, solar energy portal, celebrated the second outbreak of car batteries, at the same time, lithium battery and hydrogen battery & other; The dispute of route & throughout; Also roared. Hydrogen battery, another advantage is that the user habit & ndash; — Only need 3 minutes to complete hydrogenation, and fuel vehicle is very close, and lithium trams need a lot of charging time long, it is not only against ( Fuel car) Before the user's habits, is relatively inefficient, generating glass is a scam it will cost more time cost.