Japan's desperate efforts to develop solid-state ,fuel cells are about to be phased out?

Don't look at the electric car is hot, but in fact can only be said to be thunder, rain small!

Sales aren't as big as you think,

According to the data from 2017, the domestic sales volume of electric vehicles for the whole year was 448,800.

The sales volume of passenger cars in the country is 24.21 million, and electric vehicles are not even counted as zero, and the sales of electric vehicles are mainly concentrated in first-tier cities and some second-tier cities with limited license plates.

In the vast area of the 234 line and rural areas of the county, ordinary fuel trucks are still the absolute main force.

So, when exactly is the "era" of electric cars going to come? Let's start with two electric car bugs.

One is the issue of endurance. Although electric vehicles with a range of more than 300km are already common, and there are not many models with a range of 400km or more, they are still not enough compared to the 7800-kilometer range of fuel trucks, and fuel trucks. Three minutes of "full blood resurrection", The electric car can only fill half of the electricity in 30 minutes, and it must be filled quickly.

Another problem is the price. The price of electric vehicles is much more expensive than the same type of fuel vehicles. Even under the premise of state subsidies, only 100,000 people can buy a non-standard compact autonomous car. This price can completely buy a very good domestic SUV model. Although the maintenance cost of electric vehicles is low, the batteries that account for nearly half of the car's price are attenuated, and the value of the car is rapidly declining. The electric vehicle for four or five years is basically a "cabbage price." The replacement of electric power is also a "high price", and the cost of use is high.

Therefore, the core of solving the two bugs of electric vehicles lies in battery technology. It must greatly increase energy density and reduce manufacturing costs. In fact, this is the current idea of state subsidies.

The higher the mileage, the higher the energy density, the higher the subsidy. According to the latest subsidy rules in 2018, models with a battery energy density of 160Wh / kg and above are subsidized by 1.2 times, according to the technical target set by "Made in China 2025". By 2020, the energy density of lithium batteries will reach 300Wh / kg. The energy density reached 400 Wh/kg in 2025 and 500 Wh/kg in 2030. The existing lithium ternary battery technology has a ceiling, but it is regrettable that the energy density of the existing lithium ternary battery is not unlimited, although a large number of companies are now engaged in the development of lithium-ion batteries. However, it is generally believed that about 300 W/kg may be the ceiling of a three-way lithium-ion battery.

So even if you can reach the ceiling, the existing batteries are unlikely to meet the growing demand for endurance.

What should we do? It is necessary to find a new battery technology path. In the future, it may belong to the "solid lithium battery". There is no gas and liquid in the all-solid lithium battery structure. All materials exist in solid form. High density, high security, and other properties make it more advantageous than traditional liquid batteries.

Solid-state batteries are more temperature-resistant and do not require cooling, so they are smaller, according to Toyota.

Using solid-state battery technology, it is expected that battery density can be increased by about 50 % compared to lithium-ion batteries of the same size.

Another advantage of solid-state batteries is that they can halve the charging time.

Solid state batteries and lithium-ion batteries are based on the same technology, so the cost of raw materials between the two is not much different.

In this way, solid-state batteries are expected to increase the range of existing electric vehicles to 800-1000 km, basically meeting the needs of daily urban travel and intercity travel, and charging faster, and manufacturing costs are expected to be significantly reduced. This is an absolutely ideal material. Japanese companies are fully engaged in the development of solid-state batteries. This is also a technology that almost the entire Japanese automotive industry wants to win. Japanese media reported that Japan's new energy industry technology development agency announced yesterday. Some companies and academic institutions in the country will jointly develop the next-generation electric vehicle all-solid lithium battery in the next five years and strive for early application in the new energy vehicle industry. The project is expected to have a total investment of 10 billion yen(approximately 580 million yuan), 23 automotive, battery and material companies such as Toyota, Honda, Nissan, and Panasonic, and 15 academic institutions such as Kyoto University and Japan Institute of Physical Chemistry. Will participate in research, The plan is to fully master all-solid cell-related technologies by 2022.

The project plans to reduce the cost of batteries to around Yen/kilowatt-hours(about $90 / kilowatt-hours) by around 2030, about one-third of the current cost of lithium-ion batteries. The research group positioned a fast charging technology, charging it for 10 minutes and restoring a third of its electricity.

Earlier, Toyota had already stated that it would vigorously develop solid-state batteries to increase the range of electric vehicles. In this regard, it joined forces with Panasonic, the second largest global battery supplier, and invested more than 200 engineers to study the technology. It is expected to launch solid-state batteries in 2020.

Solid state battery development is successful, fuel truck is really dangerous. If a car can reach 800 km or more if it can be recharged quickly, the price is similar to that of a fuel truck, or it is not much more expensive. Such an electric car will pose a fatal threat to fuel trucks!

It will be a historic moment, and we will all be witnesses.

We are not far behind in automotive power battery manufacturing. Recently, the world's largest power battery manufacturer, Ningde, landed on the GEM and became the first market value of the GEM. The batteries of Ningde era have won praise from domestic and foreign car companies. Including BMW, Mercedes, Volkswagen and so on, our own batteries have caught up with Japanese and Korean rivals, and in the development of solid-state batteries, Liu believes that domestic companies will not lag behind, at least on this runway. We are already at the same starting point as Japanese companies, and it is easier to surpass them.

The page contains the contents of the machine translation.