Text/Peach Lee
When it comes to the development of new energy vehicles, we all know that its penetration rate in the automobile market is constantly increasing, and according to the national policy orientation, as well as the major car companies choose to reduce or stop the production of fuel vehicles, it can be seen that the market share of new energy will be more and more in the future. Although the current development of the new energy market is hot, it has gradually revealed many problems.
At present, the main power source of new energy vehicles is lithium-ion batteries. We all know that electric vehicles have always had the problem of charging anxiety, especially holiday travel, the most feared is that they can't find the charging pile, and the current progress in battery technology is relatively slow, and the improvement of new energy supporting facilities also needs to be continuously improved with the expansion of the market scale; in addition, the rise in the price of electric vehicles caused by the rise of raw materials has also led to a decline in consumers' enthusiasm for car purchases.
As for hydrogen energy, we have analyzed its advantages and disadvantages before, relying on the advantages of large reserves, pollution-free emissions and so on, known as the ultimate energy of the universe, the use of hydrogen energy has increasingly become a topic of discussion, and some time ago the release of relevant national policies will be hydrogen energy as a national strategic position. With the support of national policies, combined with their own conditions, hydrogen energy does have opportunities for development. So hydrogen fuel cells compared to lithium-ion batteries, will it be a new choice for new energy vehicles?
At present, the application of hydrogen energy in the automotive field is mainly in two directions, one is the hydrogen internal combustion engine, and the other is the hydrogen fuel cell. The products of hydrogen direct combustion and hydrogen batteries are water, but the direct combustion of hydrogen internal combustion engines will produce a lot of heat directly wasted, and the energy conversion efficiency is much lower, so hydrogen fuel cells are the main research directions at present or in the future.
Hydrogen fuel cell is an energy conversion device, which converts the chemical energy of the fuel into electricity, in short, hydrogen and oxygen undergo an electrochemical reaction in the stack, and the generated electrical energy is driven by an electric motor. It is similar to a battery and is also an electrochemical power generation device, so it is called a fuel cell, and the corresponding fuel cell that uses hydrogen as fuel is a hydrogen fuel cell.
Compared with lithium-ion batteries, hydrogen fuel cells have several outstanding advantages. The first is small size, light weight; followed by high charging efficiency, compared to the lithium-ion battery is a few hours of charging time, hydrogen fuel cells only need 3-5 minutes to fill up hydrogen, and the theoretical mileage of hydrogen fuel cells is greater than that of lithium batteries, but the specific endurance also depends on the size of the hydrogen storage tank. But if you consider it from many aspects, in fact, lithium batteries should be more dominant.
We currently say that the advantages of hydrogen energy, in fact, most of them are from a large long-term point of view, but in the actual application, the current advantages of hydrogen fuel cells are not obvious, although the development of lithium batteries is difficult to have new breakthroughs, but compared to hydrogen fuel cell research will be more in-depth, like BYD's blade battery technology is also very mature, the proportion of battery space has been a lot less.
In addition, the current electric vehicle market is still in a process of development, the problem of charging will improve with the expansion of the market scale, supporting facilities will certainly get better and better. But the technical cost of hydrogen energy has not been overcome, the cost of a hydrogen refueling station is about 20 million, and the cost of a charging pile may be less than 1500 yuan to see here, if you as a car company will choose? Moreover, the current market size of hydrogen fuel cell vehicles does not allow too many hydrogen refueling stations to exist, and the problem of charging is still difficult to solve.
From the market point of view, the rise in lithium battery prices is due to the sudden change in market demand coupled with the impact of the external social environment, after the continuous adjustment of the post-learning, its price will certainly tend to be reasonable, hydrogen fuel cells want to replace lithium batteries There is still a long way to go.
summary:
As far as the current situation is concerned, hydrogen energy has the opportunity to develop, but it is not a very perfect choice, before the hydrogen energy technology has a great breakthrough, lithium batteries have absolute advantages, want to develop hydrogen fuel cells, solve the problem of technical costs, and establish a sound industrial chain is a key.