The development of fuel cell vehicles in China and Japan faces difficulties

China's new energy vehicle technology route and Japan is different, Japan is a car power, China is a car developing country, but also "curve overtaking." Some people think this is impossible. The following is a comparative analysis of different technical routes of fuel cell vehicles between China and Japan, and the difficulties in developing fuel cell vehicles are put forward for your reference.

I. similarities between the technical route of fuel cell vehicles between China and Japan

Hydrogen fuel can be the technical route of the engine, that is to say, hydrogen as a power source, can also be the technical route of combustion engine. But both China and Japan are currently developing fuel cell engines that are powered by hydrogen fuel cells. Here is the basic principle of fuel cell:

Comparative analysis of different technical routes of fuel cell vehicles between China and Japan

Fuel cell is a kind of chemical device that converts the chemical energy of fuel directly into electric energy. Its single battery is composed of two electrodes (the negative electrode is the fuel electrode and the positive electrode is the oxidant electrode) and electrolyte. When the battery is working, fuel and oxidant are supplied from the outside to react. In principle, the fuel cell can generate electricity continuously as long as reactants are continuously input and reaction products are continuously eliminated.

The fuel cell technology of fuel cell vehicles in China and Japan is the same in principle.

Second, China and Japan fuel cell vehicle technology route difference

Toyota corporation of Japan is a typical representative of the technology route of automobile power, namely the strategy of high threshold. The path is from the fuel car, to the prius, to the fuel cell. Many experts in China's auto industry generally agree that hybrid, plug-in and fuel cells are the development path.

China's technical route for developing new energy vehicles, after years of summary, in 2012 established the pure electric drive strategy, namely the threshold phase strategy. It is also the strategy that the layman basically adopts when entering the automobile industry. China is not a car power, relative to Japan, the United States, is to some layman.

In terms of the technical route of fuel cell vehicles, China adopts the electric-electric hybrid fuel cell technology route on the basis of pure electric, that is, the battery energy accounts for a larger proportion; In Japanese fuel cell vehicle technology, fuel cells account for a larger proportion of energy.

China has made major achievements in the development of new energy vehicles. It ranks first in the world in terms of power battery scale and ranks first in the world in terms of level. Japan's main achievements in the development of new energy vehicles are hybrid passenger vehicles, the world's first. China's fuel cell vehicle bus began to promote the demonstration application; Japan has small batch applications for passenger cars. Technical level both difference is not big, also compare objective.

Toyota's basic approach is to make a hybrid platform, such as the Toyota prius, add a little bit of a battery to the prius (such as a plug-in), and replace the engine with a fuel cell on top of the prius. Foreign bus is pure fuel cell drive, car is all fuel cell, fuel cell make very big.

China's basic approach is to first make new energy vehicles with pure electric power, then make plug-in and deep-mixing fuel cells on the basis of pure electric power, then reduce the batteries on the basis of deep-mixing fuel cells, then increase the difficulty, and then make full-power fuel cells. Chinese fuel cell bus is a deep hybrid bus of fuel cell and power cell. China's fuel cell passenger car is an additive fuel cell car with fuel cell as auxiliary power.

Third, the basic reasons for the different technical routes of fuel vehicles between China and Japan

Japan is a strong car, China is a developing car country. China lags far behind Japan in the high-end of traditional car technology. That's the consensus. In general thinking, it is rational for China to learn from Japan.

China is already a big car country, must grow into a car power, is the requirement of history. How super? How to become a car power? If the line is the same as the car power, China's car status is always backward.

(3) the current automotive technology is facing a new era of change, electric cars is a historic trend. How to change? There are no ready answers. Japan has Japan's response line, and China has China's response line. The Chinese refer to the "Chinese response route" as "overtaking on a curve". Of course, it is up to the Chinese themselves to "overtake".

Development of fuel cell vehicles faces difficulties

China and Japan face the same difficulties in promoting their own fuel vehicle technology routes:

Hydrogen is not a natural energy, but the carrier of natural energy, but from the conversion;

(2) some rich in hydrogen, purity is not high, not again purified, otherwise can not directly to the fuel cell, purification to consume energy again, the main consumption or electricity;

The hydrogen must be compressed into the container. Like 35MP, 70MP. Compression and energy consumption, mainly or consumption of electricity, otherwise there is no one than energy;

(4) the world's fuel cell technology has no new breakthrough, relative to the power battery, more forward-looking, higher cost;

(5) power battery car disposable mileage, is expected to compete with traditional cars. Ouyang minggao said that the power battery can completely replace the gasoline engine. The implication is that a car powered by a battery can completely replace a car powered by a gasoline engine.

6 power battery is unlikely to completely replace diesel engine, fuel cell technology is mainly used in commercial cars, must be said, coach. At present, the development of hydrogen bus, understanding in technical matting. Bus has a certain particularity, pure electric buses popular, there are successful examples, such as shenzhen's buses all pure electric;

7 fuel cell technology is the forefront of energy technology, limited in the gasoline engine car, fuel cell technology and power battery compared, at present look not by what strong advantage?

Today fuel cell technology is the frontier technology of energy compared with diesel engine, the advantage is also quite obvious, such as tanks, aircraft, ships, power generation is all by diesel engine, so fuel cell positioning in a general type of power machinery, may have more obvious cost advantage, alternative diesel engine in these areas, has a broad prospect;

V. conclusion of comparative analysis of different technical routes of fuel cell vehicles between China and Japan:

Compared with Japan, China has a certain gap in terms of hybrid passenger cars, but in the field of fuel cells, China and Japan are in a state of difference.

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