Core technology patent of hydrogen fuel cell

Text/Ruan Jincheng

While the market is still paying attention to pure electric vehicles, Toyota and Honda in Japan and Hyundai in South Korea are all paying attention to hydrogen fuel cells.

If you attended the China International Import Expo (CIIE) held in Shanghai last year, you will find that Honda, Honda and modern booths are all technologies in this field.

Mirai hydrogen fuel cell vehicle exhibited at Toyota 20 19 China International Import Expo (CIIE).

Maybe you have no confidence in hydrogen fuel and are still optimistic about the pure electric direction? It doesn't matter, because the core technology of electric vehicles comes from lithium batteries. At present, the leading manufacturers of lithium battery technology in the world are Panasonic, Sanyo, LG Chem and Samsung, except for the second-ranked Contemporary Ampere Technology Co., Ltd..

In other words, Japanese and Korean companies are basically "eating in a bowl and watching in a pot" attitude towards hydrogen fuel and pure electricity technology.

Hydrogen fuel cell truck jointly developed by Toyota and Hino

Just these two days, Toyota Motor and Hino Motor decided to jointly develop heavy fuel cell trucks and promote their practical application through "driving demonstration experiments" in the future.

In fact, Toyota and Hino have long positioned "hydrogen" as an important energy source in the future. Since 2003, the two sides have jointly conducted empirical experiments on fuel cell buses, with more than 65,438+05 years of research and development experience.

Toyota and Hino are one company, but Toyota is mainly passenger cars, and Hino, a sub-brand, is the representative of commercial vehicles. * * * The heavy-duty fuel cell truck jointly developed is based on Hino Profia, but it will still adopt a specially designed chassis to adapt to the structure of the fuel cell truck and be completely lightweight to ensure sufficient load capacity.

Toyota Mirai is being hydrogenated.

As for the core power, it adopts two sets of hydrogen fuel cell stacks newly developed by Toyota for the next generation of Mirai and Hino's powerful technology-vehicle driving control system.

At present, Toyota Mirai is the first generation product. At the 20 19 Tokyo Motor Show, Toyota released the concept car of the next generation Mirai fuel cell electric vehicle (FCEV).

The second-generation Mirai has been completely redesigned with a longer cruising range, with the goal of increasing by 30% compared with the current generation.

Next Generation Toyota Mirai Concept Car

Toyota, Hyundai and Bosch are all laying out commercial hydrogen fuel cell vehicles. Because environmental protection has great pressure on the commercial vehicle field, it is necessary to find new technological breakthroughs as soon as possible. The lithium battery pure electricity technology that passenger cars are generally optimistic about is not suitable for long-distance commercial vehicles.

Trucks or buses need a high cruising range, while ordinary lithium-ion battery electric vehicles need to reach a cruising range of hundreds of kilometers and push dozens of tons of loads. The weight of the battery will become too amazing to be suitable for this field. At this time, the technical advantage of hydrogen fuel cell is very obvious, and it can complete hydrogenation within 5 minutes.

For example, both Toyota and Hino believe that heavy trucks used for trunk transportation, such as Hino Profia, have sufficient cruising range, load capacity and fuel supply in a short time, and fuel cell vehicles using high energy density hydrogen as fuel can meet these needs.

In addition, another important reason why hydrogen fuel cell technology is easy to popularize in commercial vehicles-because the driving route of commercial vehicles is relatively fixed, it is friendly to the construction of hydrogen refueling stations.

The driving cost of Toyota Mirai is close to that of a fuel car.

There is no doubt that the cost of hydrogen fuel is still high (the price per kilogram in Europe is generally above 5 euros), but it is expected to be reduced after mass production in the future, and the energy density of hydrogen is very high. 65,438+0 kg of hydrogen can generate energy equivalent to that provided by about 3 liters of diesel.

Toshiba solar hydrogen production plant in Japan

Japan mainly develops solar energy and wind energy hydrogen production technology, and with government subsidies, the current driving cost of Toyota Mirai is close to that of gasoline vehicles. Japanese companies have mastered 83% of the patents of global hydrogen fuel cell technology and are in a leading position.

Both Toyota and Hino have proposed to significantly reduce CO2 emissions during driving by 2050, so it may be the only way to fully promote the technology research and development and popularization of electric vehicles, and hydrogen fuel cell trucks are also a kind of electric vehicles.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.