Technology: breaking the hegemony that monopolizes the world

The high-level and technical executives of Ningde Battery are now like elementary school students sitting in the classroom and listening to lectures. Not only do they dare not desert, but their eyes are wide open, afraid of missing any news.

"Currently, both academia and battery manufacturers are more and more aware of the limitations of lithium batteries, that is, due to the properties of materials, the energy density of lithium batteries can no longer be improved by leaps and bounds, and new energy electric vehicles need to enter the market. The mileage support is getting bigger and bigger.

Top-level batteries can only hover around 1,000 kilometers, while most pure electric new energy vehicles are still at the level of hundreds of kilometers, making consumers' mileage anxiety difficult to reduce easily.

In order to solve the range anxiety, the upper limit of the energy density of the battery must be increased, that is, new materials must be used to reform all of this.

Compared with ordinary liquid lithium batteries, solid-state batteries inherently have higher energy density, smaller volume, and safer properties due to the advantages of materials.

This time, our company has developed the second-generation commercial solid-state battery technology. Its solid-state battery can increase the battery life of current new energy electric vehicles by at least three times and reduce the charging time by half. Fully charged in ten minutes, the Kirin battery of Ningde Times can quickly charge 80% of the power in ten minutes.

But if we use our battery technology system, the charging problem can be perfectly solved within ten minutes, from the time spent playing games on a mobile phone to the pastime of reading a few chapters of novels, and the time for fast charging 80% can even be reduced to 80%. minutes or so.

At the same time, based on the addition of new carbon-based materials and graphene materials, solid electrolytes are used to replace the electrolyte and diaphragm of traditional lithium-ion batteries.

In the early stage of research and development, the professors of Xia Ke Academy were also thinking about how to choose the direction of solid-state batteries, because solid-state electrolyte materials include solid-state battery polymers, oxides, and sulfides. Among them, polymer electrolytes belong to organic electrolytes, and oxides and Sulfides belong to inorganic ceramic electrolytes.

Among the three electrolytes, polymers have low room temperature conductivity and are inherently unsuitable for use on trams, so they were rejected by us early on.

Oxide has good cycle performance and is suitable for thin-film structure design. At present, friends from Ningde Times, Biati and other companies are on this route. The technical barrier is high, but it is safe enough.

The first road is not suitable, and the second road is crowded with too many people, so the experimenters in our Titan star department and the old academicians of the Xia Ke Academy are like heartless young people, Take the initial billions of resources and rush to the third road.

To be honest, I don’t know why there are so many stunned young people among the company’s R\u0026D personnel. There are academicians who explain these roads very straightforwardly during lectures, but after class, these academicians still accompany these experimental personnel. Crazy. "

When he said this, Gu Qing shook his head in distress.

But the pride in the words was beyond words.

At the same time, many corporate executives and R\u0026D personnel also heard the meaning between the lines in his words.

My Kyushu Science and Technology smashed the battery project, and it cost billions of yuan in the initial stage of research and development. There are also a bunch of academicians and senior R\u0026D personnel of the Xia Ke Academy. Enterprises with more than 10 billion yuan should not touch porcelain technology.

At least Lei Jun, who was in a state of excitement at this time, had heard the meaning.

He focused his eyes on the young man on the stage, and he was even thinking in his heart: He had already made his statement in Yanjing before, and invested tens of billions in his hands. If he could directly spend money to get the technology from Kyushu Technology, I am afraid it would be a waste of time. Very good strategy in the short term.

And even if they can't get first-hand technology, Ningde Times will definitely not want Biati to get this technology, and Ningde Times is bound to sell products if it grabs this technology and decentralizes it.

Money is useful at this time.

While thinking about it, Mr. Lei is already estimating how many billions of funds are left in his pocket, and whether he can support the rice new energy vehicle to obtain the new technology products of Kyushu Technology.

At this time, Gu Qing stretched out his right hand and tapped the battery pattern in front of him lightly. The latter's Yunjin display screen began to enlarge the pattern, and then the structure of the battery could be disassembled publicly.

The technologies that can be taken out for commercial use are all patented technologies. In a sense, they can already hold the pipa half-hidden.

Gu Qing pointed to the internal material of the solid-state battery and said: "Although the third route is the most difficult, compared with polymers and oxides, the conductivity of sulfide is generally the highest in the same class, and even has the potential to surpass organic electrolytes.

I heard that Guoxuan Hi-Tech's high-nickel ternary battery has a single energy density of 302 Wh/kg, and Tesla's boasted 4680 has not only failed to come up with a stable and mature product after many years, even with an energy density of 300 W. The parameter per kilogram has already lagged behind the batteries of our domestic manufacturers in Daxia, which is really a mistake.

In addition, by using sulfide as the material of solid-state batteries, our scientists can naturally save a large part of the design and development of thermal management systems and safety management systems in the development of traditional battery systems during system integration, while reducing work items. The process of battery production, manufacturing and assembly is reduced, and the efficiency of battery production is greatly improved.

The second generation of commercially available graphene solid-state batteries, due to the new material, has a volumetric energy density of 700Wh/kg compared to liquid lithium batteries in the first phase of the experiment. Alkene solid-state batteries can easily support new energy trams with a battery life of 1,500 kilometers. If the technology of the cooperative manufacturer is strong, the actual battery life of 2,000 kilometers can also be overcome.

At the same time, I need to emphasize the safety of the battery. The solid electrolyte developed by our scientists can effectively prevent the growth of lithium dendrites. Lithium batteries are prone to fire or even explosion. Although the blade battery is safe enough, due to the special structural design, a single battery When there is a problem with the unit, there is a probability that the total battery of the blade battery will be limited. It is very easy to cause the tram to lose its power at certain times, thus causing it to lie down while driving.

The Kyushu solid-state battery using sulfide and graphene materials is not only non-flammable, non-corrosive, and solves the phenomenon of lithium dendrites, but also has top-level safety performance. Graphene material film and some specially manufactured packaging materials, It allows our solid-state batteries to easily withstand thousands of times of bending without attenuating performance. "