The Advantages Of Hydrogen Fuel Cell Vehicles Are Obvious But The Promotion Is Blocked. The Facilities And Technical Bottlenecks Are To Be Broken

- Oct 16, 2019-

Hydrogen fuel cell vehicles have three major advantages: zero emissions, reduced vehicle emission reduction pressure, only a few minutes for a single hydrogenation, 1000 km travel, long battery life, and good low temperature performance.

At the beginning of April, the three hydrogen fuel cell vehicles were first listed in the “Recommended Models for Promotion and Application of New Energy Vehicles”, enjoying a state subsidy of 200,000-500,000 per vehicle, and the same amount of subsidies from some local governments. 70% of the subsidy will last at least until 2020.

Although hydrogen fuel cell vehicles are widely concerned, their industrial development is still in the initial stage and needs long-term development. In 2018, the national sales volume was only 1,527 units.

The hydrogen cloud chain believes that this situation will be improved in the future with the support of the policy!

However, at present, the research and development of hydrogen fuel cell technology is still facing a big dilemma, and the development of core component technology is difficult! For example, the research and development of high-pressure hydrogen storage tanks is difficult, the key technologies of hydrogen fuel cells have not been broken, and the localization of parts and components is low. In addition, the cost of hydrogen production and the use of vehicles are also facing major problems.

However, the hydrogen cloud chain believes that the obstacles that really restrict the hydrogen fuel cells from becoming practical, going to the market, and going to the masses of life are economic scale hydrogen production, hydrogenation technology and its social universality, technology (electric stack and vehicle technology). Reliability, etc. The hydrogenation network is the infrastructure and is the basis for the popularization of hydrogen energy applications.

Short-distance transport long-tube trailers are the most economical for gaseous hydrogen transport. More than 300 km of liquid hydrogen tanker transport is more economical: hydrogen transport includes gaseous hydrogen transport, liquid hydrogen transport and solid hydrogen transport. The former two are pressurized or liquefied with hydrogen and then transported by means of vehicles. This is a common method used in hydrogen refueling stations. Solid hydrogen transport is transported through metal hydrides. Considering the input of hydrogen liquefaction unit, liquefaction energy consumption and other factors, the transportation of gaseous hydrogen is the most economical. The transportation cost of gaseous hydrogen in long tube trailer can reach 50 km/2.3 yuan/kg, equivalent to 46 yuan (ton·km), / When the transportation distance exceeds 300 kilometers, the transportation of liquid hydrogen tanker becomes more economical.

The core equipment of domestic hydrogen refueling stations basically rely on imports, and the hydrogenation machine is expected to be the first to be localized:

The hydrogen refueling station is similar to the existing mature compressed natural gas (CNG) refueling station. The main equipment includes the degassing column (external hydrogen production station), compressor, hydrogen storage tank, hydrogenation machine, pipeline, control system. , nitrogen purging device, dispersing device and safety monitoring device, etc., whether it is the hydrogen production station outside the station or the hydrogen production station in the station, the core equipment is compressor, hydrogen storage tank and hydrogenation machine, which account for Up to 30%, 11%, and 13% of the construction cost of the hydrogen refueling station. At present, the core equipment of the domestic hydrogen refueling station is basically dependent on imports. The domestic hydrogen refining machine has made breakthroughs in domestic companies, and it is expected to achieve localization first.

The construction of domestic hydrogenation network is still in its infancy, and it can learn from foreign experience:

The initial stage is mainly guided by government policies and demonstration of government demonstration projects. After entering commercial operation, the construction of hydrogen refueling stations should be centered on major cities, and then built on the main roads (high-speed) connecting major cities, forming a preliminary Hydrogen energy highway (network); appropriate subsidy policy is necessary before the emergence of economies of scale; after the relevant standards are mature, industrial capital (private capital) should be encouraged to participate in the construction of hydrogen refueling stations; In addition to innovation, oil and gas integrated filling stations should be fully considered.

In general, the development prospects of hydrogen-fueled vehicles are broad, and the enterprises and governments of all parties are constantly deploying, and the industrial chain is accelerating preparations. It is the future sunrise industry. However, the road to industrialization, commercialization, and living of hydrogen energy and hydrogen fuel cells is still very long.

According to reports, at present, domestic enterprises have successfully developed fuel cell proton exchange membranes, which have solved the supply problem of hydrogen fuel cell core components, and the 70MPa hydrogen storage tanks that many companies are developing are also about to have mass production capacity.

In addition, research teams from Peking University and China University of Science and Technology have developed fuel cell catalysts that do not use platinum, which greatly reduces the cost and effectively enhances the catalyst activity.