Chapter 1138 Technology
The senior and technical executives of Ningde Battery are now like primary school students sitting in the classroom listening to lectures. Not only do they not dare to desert, their eyes are wide open, afraid of missing any point. information.
“At present, both academia and battery manufacturers are increasingly aware of the limitations of lithium batteries. That is, subject to the properties of the material, the energy density of lithium batteries cannot be improved by leaps and bounds. New energy electric vehicles need more and more mileage support to enter the market.
Top electric vehicles. The mileage range can only hover around a thousand kilometers, while most pure electric new energy vehicles are still at the level of hundreds of kilometers, so consumers’ range anxiety cannot be easily reduced.
To solve range anxiety, we must The upper limit of battery energy density has increased, which means that new materials must be used to reform everything.
Compared with ordinary liquid lithium batteries, solid-state batteries inherently have higher energy density, smaller size, 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. For example, BYAT The new battery can be fully charged in twenty minutes, and the Kirin battery from Ningde era can quickly charge 80% of its power in ten minutes.
But if we use our battery technology system, we can perfectly solve the charging problem in ten minutes, changing the time spent playing mobile games into reading a few chapters of novels, and quickly charging 80% of the battery. The time can even be compressed to about eight minutes.
At the same time, based on the addition of new carbon-based materials and graphene materials, solid electrolytes are used to replace the electrolytes and separators of traditional lithium-ion batteries.
In the early stages of research and development, professors from Xia Ke Academy were also thinking about how to choose the direction of solid-state batteries, because there are three types of solid-state electrolyte materials: solid-state battery polymers, oxides and sulfides, among which polymer electrolytes belong to Organic electrolytes, oxides and sulfides are inorganic ceramic electrolytes.
Among these three electrolytes, polymer has low room temperature conductivity and is inherently unsuitable for use on trams, so it was rejected by us very early.
The oxide cycle performance is good and is suitable for thin film structure design. Currently, friends from Ningde Times, BYD and other companies are on this route this week. The technical barriers are 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 Titanium department and the old academicians from the Charcoal Academy seem to be heartless. He was dumbfounded and rushed towards the third path with the initial billions of resources.
To be honest, I don’t know why there are so many stupid young people among the company’s R&D staff. Obviously there are academicians who explain these roads very straightforwardly during lectures, but after class, these academicians still Go crazy with these experimenters. ”
When he said this, Gu Qing shook his head in distress.
But the pride in his words was beyond words.
At the same time, many corporate executives and R&D personnel also read between the lines of his words. Our battery project at Jiuzhou Technology cost billions in the initial stage of research and development, and we also had a bunch of academicians and senior R&D personnel from the Xia Ke Academy of Sciences. It cost me who knows how much money to build it later. The other assembly plants and the total business planning funds have just been Enterprises with over 10 billion yuan should not touch porcelain technology.
At least Lei Jun, who was looking excited at this time, heard this meaning.
He focused his eyes on the young man on the stage, and he was even thinking in his heart: He had made a statement in Yanjing before and made tens of billions of investments in his hands. If he could directly spend money from Jiuzhou Technology, Once the technology is obtained, it may be a very good strategy in the short term.
And even if Ningde Times cannot get first-hand technology, Ningde Times will definitely not want BYD to get this technology. Ningde Times will definitely sell products if Ningde Times seizes the decentralization of this technology.
Money comes into play at this time.
While thinking, Mr. Lei was already estimating how many billions of funds he had left in his pocket to support the rice new energy vehicle to obtain the new technology products of Jiuzhou Technology.
At this time, Gu Qing stretched out his right hand and gently tapped the battery pattern in front of him. The Yunjin display screen of the latter began to enlarge the pattern, and then the structure of the battery was publicly dismantled.
The technologies that can be taken out and decentralized for commercial use are all patented technologies. In a sense, they can already hold on to the pipa and half-cover their faces.
Gu Qing pointed to the internal materials of the solid-state battery and said: "Although the third route is the most difficult, compared to polymers and oxides, the conductivity of sulfides is generally the highest in its class, and even has the potential to surpass organic electrolytes.< br>
I heard that the single energy density of Guoxuan Hi-tech’s high-nickel ternary battery has exceeded 302 watt-hours per kilogram. However, the 4680 boasted by Tesla has not only not produced a stable and mature product after many years, but Even energy density 30 The parameter of 0 watt hours per kilogram is already behind the batteries of our domestic manufacturers in Daxia, which is really a mistake.
In addition, using sulfide as a material for solid-state batteries allows our scientists to naturally improve the performance during system integration. It saves a large part of the design and development of thermal management systems and safety management systems in traditional battery system research and development. It not only reduces work items but also reduces the battery production, manufacturing and assembly processes, greatly improving battery production efficiency. .
Due to a different approach in materials, the second generation of commercially available graphene solid-state batteries has a higher volume energy density than liquid lithium batteries. In the first phase of experiments, it reached 700Wh/kg, and in today’s battery When the technology is implemented, the graphene solid-state battery can easily support a new energy electric vehicle with a driving range of 1,500 kilometers. If the partner manufacturer’s technology is excellent, the actual driving range of 2,000 kilometers can also be overcome
<. br>At the same time, I need to emphasize the safety of the battery. The solid electrolyte developed by our scientists can effectively block the growth of lithium dendrites. Lithium batteries are prone to battery fire or even explosion. Although blade batteries are safe enough, due to the special structural design, When there is a problem with a single battery unit, the total battery of the blade battery has a probability of being limited, which can easily cause the tram to lose power at some point, causing it to collapse while driving.
Jiuzhou solid-state batteries using sulfide and graphene materials not only have a solid electrolyte that is non-flammable, non-corrosive, and solves the lithium dendrite phenomenon, but also has top safety performance, graphene material films and some specially manufactured packaging materials. This allows our solid-state batteries to easily withstand thousands of bending tests without sacrificing performance. ”
(End of this chapter)