It will take several years for China's hydrogen fu

2022-08-17
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China's hydrogen fuel cell technology to mature still needs to cut off the power supply in the past few years

during the national two sessions this year, the discussion on hydrogen energy and hydrogen fuel cell vehicles was very heated. In the revised government work report, hydrogen energy was included for the first time, and it was proposed to promote the construction of charging, hydrogenation and other facilities. This has become an important milestone in the development of hydrogen fuel cell vehicle industry

hydrogen fuel cell vehicle is an important technical route of China's new energy vehicle industry and one of the "troika" of new energy vehicles. However, in the past period of time, the focus of industrial development was mainly on pure electric and plug-in hybrid electric vehicles, resulting in the industrialization process of hydrogen fuel cell vehicles being 10 years slower than pure electric vehicles

it has obvious advantages in the commercial vehicle scene

after nearly 10 years of "dormancy", hydrogen fuel cell vehicles finally came to the stage. In the past two years, domestic attention to hydrogen energy and fuel cell vehicles has increased unprecedentedly. Since the establishment of China's hydrogen energy and fuel cell industry innovation strategic alliance led by the national energy investment group in early 2018 and participated by many central enterprises such as the National Power Corporation, hydrogen energy has been written into the government work report for the first time this year. From the local government to the central government, the importance of the development of hydrogen energy and fuel cell vehicles has been mentioned to an important position

"Why is hydrogen energy so hot in the past two years? Because the petroleum, chemical, steel and energy industries are closely related to hydrogen energy. Steel coking has hydrogen, and the by-product hydrogen of chemical chlor alkali production is up to several 10 tons. For example, the experimental power of the largest electronic universal experimental machine in China, such as ordinary steel, is 1000KN, level 1 machine, coal gasification produces hydrogen, petroleum refining uses hydrogen, etc. these industries are currently some industries that the national supply side structural reform wants to reduce production capacity These industries are about three times larger than the automobile industry, that is, the output value is about 30 trillion yuan, and the output value of petroleum and chemical industry alone is about 15 trillion yuan. Hydrogen energy is a good choice for such a large industry to seek a way out of green development, transformation and upgrading. In short, the hydrogen energy industry chain is very long, there are many stakeholders and a large number of employees, which plays a very obvious role in promoting the industry. " Ouyang Minggao, academician of the Chinese Academy of Sciences and professor of Tsinghua University, gave his own understanding of the hot phenomenon in the hydrogen energy and fuel cell vehicle market

in addition, due to the congenital defects of pure electric vehicles in driving range, charging time, heavy-duty transportation, etc., hydrogen fuel cell vehicles are also considered to be an important solution to solve the pain points of users of new energy vehicles in the commercial field

Wei Wei, President of Zhangjiagang hydrogen cloud New Energy Research Institute, said in an interview with China Power News a few days ago that the development characteristics of hydrogen fuel cell vehicles will be mainly commercial vehicles, which have different application fields from pure electric vehicles. Many people may think that hydrogen fuel cell vehicles are designed to subvert pure electric vehicles. In fact, this is not the case. These two technical routes are complementary, mutually supportive, common development and long-term coexistence

Ouyang Minggao holds the same view. Since the hydrogen fuel cell power system not only has hydrogen storage bottles, but also hydrogen fuel cell engines and auxiliary batteries, whether the working surface of the pendulum latch and hook of the hydrogen fuel cell car has signs of wear is a challenge, especially for compact cars. In addition, the use of liquefied hydrogen is the development direction of hydrogen fuel cell vehicles in the future, which is easy to achieve on trucks and buses, but it is difficult to apply to passenger cars, because passenger cars often have to be placed in underground garages, and liquid hydrogen has evaporation characteristics

Ouyang Minggao introduced the development status of fuel cell vehicles in China. First, it is characterized by the deep hybrid of fuel cells and power cells; Second, fuel cell commercial vehicles are the main body; Third, type III compressed hydrogen bottle is the mainstream way of on-board hydrogen storage

at present, the key area of the promotion of hydrogen fuel cell vehicles in China is the field of commercial vehicles. The number of hydrogen fuel commercial vehicles in China has "reached 3500, ranking first in the world

hydrogen fuel cell technology has developed rapidly

in recent years, China has made great progress in hydrogen fuel cell engine technology. It has iterated from the first generation fuel cell engine to the third generation fuel cell engine. The power density of the stack has reached 3 kW/L, and the volume has been able to achieve the same with the traditional four cylinder internal combustion engine. However, there is still a certain gap with the international advanced level in terms of the cycle life of the stack

Ouyang Minggao pointed out that although there is still a certain gap between China's hydrogen fuel cell technology and the world's advanced level, thanks to the vast market of hydrogen fuel cell vehicles in China, many participants, and abundant resources invested by all parties, the technology has made rapid progress. In three to five years, China's hydrogen fuel cell technology will be synchronized with the international advanced level and reach the stage of technological maturity

"the huge domestic market is the most powerful driving factor for the development of hydrogen fuel cell vehicles in China." Wei Wei told China power news that the scale of China's market will attract many enterprises once the market rises. Through the improvement of localization rate and the scale effect, the cost will be greatly reduced. At present, many advanced technologies of hydrogen fuel cell vehicles have not been industrialized. The industrialization process of these technologies in China may be faster than that in foreign countries, because China has the largest market in the world

According to Wei Wei, China's development plan for hydrogen fuel cell vehicles is to exceed 10000 vehicles by 2020, 50000 by 2025 and one million by 2030. At present, it is in the development stage of "ten cities and thousands of vehicles"

when the development of hydrogen fuel cell vehicles is steady, we should also pay attention to the practical problems in the development process

Ouyang Minggao pointed out that the main challenges facing the development of hydrogen fuel cell vehicles in China are hydrogen energy technology and cost. China's hydrogen energy technology lags behind fuel cell technology. Traditional hydrogen energy technologies such as alkaline electrolyzer and compression mechanism cold hydrogen liquefaction have problems of low efficiency and high cost, which requires the whole industry chain to jointly promote technological breakthroughs

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