Chapter Seventy-Three: Solid-State Batteries! Rambled!
When Gao Yuan showed the original battery design drawing, the conference room quickly fell silent, and the company's researchers began to talk in private.
"Research batteries? We are a chemical fiber company, and the battery span is too big, right? ”
"It's not a matter of span at all."
"What's the problem?"
"Of course, it is Mr. Gao's design, how can there be such a battery in the world? When the battery is fully charged, the atoms will inevitably expand inside the battery, and without the electrolyte as a buffer, how to prevent the danger of excessive expansion? How to stop the detachment of atoms caused by repeated contractions? ”
"This..."
"It seems to make sense, brother Tai used to study batteries?"
"No, I followed Mr. Li Changxing to do vulcanization technology, and the battery is purely a personal hobby."
"To be honest, I'm not very optimistic about Mr. Gao's design, so far, the world's most advanced technology is Panasonic's semi-solid-state battery, and Mr. Gao's solution is completely ***, and it has directly entered the all-solid-state era."
"But then again, Mr. Gao's foundation is really powerful, he even studies electrochemical engineering?"
Unknowingly, Kunlun Company is already a large-scale enterprise with a R&D team of 400 people, and everyone is talking about it at the moment, but in the final analysis, it is generally felt that the probability of success in battery research will not be too large.
Xu Qingzhou frowned slightly, and asked Gao Yuan: "This is a solid-state battery solution?" ”
Gao Yuan nodded, "That's right, the lithium battery technology we are currently using is close to the physical limit, and the price may decrease with large-scale production, but the capacity is difficult to exceed five hundred watt-hours per kilogram." ”
The energy-to-weight ratio is an extremely important data in the field of batteries.
To put it simply, 500 watt-hours per kilogram, which means that each kilogram of battery can store up to 0.5 kilowatt-hours of electricity, if you want to make your electric car install 100 degrees of electricity, you need to stuff 200 kilograms of batteries into the car body.
Li Changxing asked curiously on the side: "Then may I ask Mr. Gao, how much capacity can you achieve with this solid-state design?" ”
Gao Yuan groaned slightly, "According to my preliminary calculations, it is conservatively estimated that it will not be less than two kilowatt hours per kilogram." ”
Swish~
As soon as these words came out, people were stunned at the time, and it took a full minute before they woke up like a dream.
"Two kilowatt hours per kilogram? That's too high, isn't it? ”
"Yes, at present, the 811 model with the highest capacity of ternary lithium can only achieve 300 watt hours, and the design of Gao Zong is nearly seven times that of 811 lithium battery!"
"Ternary lithium has been calculated, and lithium iron phosphate is generally only in the early 200 watt-hours."
"Although Mr. Gao's design is a bit out of line, it won't increase the capacity so much?"
In the face of doubts, Gao Yuan was prepared, and he released a new chart, which shows the technical route adopted by the current major manufacturers, as well as the scale of production.
The so-called 811 ternary lithium battery is actually the positive electrode of the battery, which contains 80% nickel, 10% cobalt, and 10% manganese.
At the very beginning, the ratio of cathode elements was actually 523, which later evolved to 622, and was finally finalized as 811, which is recognized by the battery industry that 811 ternary lithium battery is currently the most technologically advanced and highest-capacity scheme.
The disadvantage of the 811 battery is that it is not so safe.
Someone once compared the 811 ternary battery of the CATL era with BYD's lithium iron phosphate blade battery, which was also punctured and caused the battery to break, and the blade battery was basically fine, but the 811 ternary battery was on fire.
Gao Yuan said in a deep voice: "Through this picture, it is not difficult for everyone to find that domestic battery manufacturers have reached the same level as the global first-tier enterprises led by Panasonic in terms of technology, and in terms of output and market share, they have already completed the Jedi overtaking!" ”
"Just a few years ago, we did not have so many excellent ternary lithium power battery manufacturers, and now we not only have CATL, BYD, Guoxuan Hi-Tech, Funeng and other excellent manufacturers, but also completed the construction of the whole industrial chain from battery raw materials, parts to battery production and assembly!"
"The times are really different, at least in the field of batteries and new energy, we don't need to be arrogant, whether it is Tesla, Mercedes-Benz and BMW's plug-in version of the car, you disassemble them, seventy or eighty percent of them are masterpieces of the domestic industrial chain, the so-called chip relies on Infineon, the battery relies on Panasonic and LG, and the electronic control relies on the mainland and Denso, that is the old yellow calendar, and now this year with domestic goods, there is no shame!"
"Next, I'll tell you about my plan, please look at the projection."
As the screen flickered, everyone saw clearly the internal structure of the solid-state battery, which was composed of hundreds of millions of tracks! The whole is honeycomb-shaped!
These honeycomb tracks are less than 100 nanometers in diameter, ensuring that the lithium metal is completely fixed while the battery is operating, that it does not de-energize the ions and that there are no side reactions to form a passivation film.
According to Gaoyuan's design, the cathode of solid-state batteries will no longer use nickel and cobalt, which are not only expensive, but also very toxic, and Gaoyuan proposed to use manganese and oxygen ions as cathode materials.
The problem is that during the battery reaction, the oxygen ions will become fluid, which may cause them to escape from the cathode, so the surface of the oxygen ions needs to be coated with molten salt.
In general, Gao Yuan intends to use Kunlun's polymer material technology to establish countless honeycomb nano orbitals inside the battery to control the dispersion of lithium metal, so that the reaction can be completed in the orbit, and the traditional electrolyte is completely abandoned.
On the other hand, Takahara has also improved the battery cathode, using cheaper but better performing manganese and oxygen ions.
As a result, solid-state lithium batteries have achieved higher density, safer, and cheaper, three seemingly impossible major improvements.
Call~
The students who understood the technical route of the plateau couldn't help but gasp.
"It really did! Mr. Gao really did it! ”
"Nanorail belongs to the innovation of battery structure, the introduction of manganese and oxygen ions, is a material innovation, the coating of oxygen ions, and the forced stability of the oxygen ion is a process innovation! Our boss is very powerful, far more powerful than imagined! ”
"According to you, the boss's plan has a play?"
"There's definitely a play! It's so dramatic! ”
"If this solid-state battery can be made, the range of electric vehicles will not be hundreds of kilometers, but thousands of kilometers!"
"The more important applications are in heavy-duty trucks and ocean-going vessels! If even these equipment are powered by electricity, my God, the picture is so beautiful that I can't imagine it! ”
As a result, the conference room was completely boiling.
Everyone thought that Gao Yuan was just proposing an idea, and in the end, it was up to his researchers to find a solution.
As the so-called boss moves his mouth, the employee breaks his leg, which is probably what it means.
But what everyone never expected was that Gao Yuan not only put forward the idea, but also gave a specific solution!
This is really amazing, the design of solid-state batteries, that is called a fantasy, the ghost knows how the plateau came up with it!