Chapter 436: The flaws outweigh the merits! A new era of technology! Accelerate the commercialization process!
Xucheng, Zhuxianzhuang Science and Technology Park.
Chen Yansen picked up the phone, glanced at the caller ID, and pressed the answer button.
"Mr. Chen, I heard a rumor that Senlian Capital wants to transfer the equity of Desay Battery." Jiang Jie smiled heartily and tested cautiously.
"It's not a rumor." Chen Yansen raised his lips slightly, and then added: "I do have the idea of selling Desay Battery shares."
The smile on Jiang Jie's face disappeared in an instant. He felt like a huge rock was pressing on his heart and he felt dazed.
You know, in the past two years, Desay has caught up with the trend of smartphones, holding oranges in its left hand and apples in its right hand, and its revenue and stock price have been soaring.
Chen Yansen wants to cash out at this time. Can Desay Battery still keep the supply order from Orange Technology?
Jiang Jie frowned, his chest felt stuffy, and he couldn't help but ask, "What about the cooperation between Desay and Orange Technology?"
"Don't worry, Mr. Jiang. At least this year, Orange Technology has no plans to change suppliers."
Chen Yansen spoke in a flat tone.
This year?
What about next year?
Jiang Jie immediately understood the subtext of the words, and Orange Technology was afraid that it would terminate its cooperation with Desay.
He thought for a moment, gritted his teeth and said, "Mr. Chen, if it's a question of supply price, I can give you another five points."
"It has nothing to do with the price." Chen Yansen replied simply.
"Okay, Mr. Chen, I understand." Jiang Jie looked disappointed. He didn't ask any more questions. He forced himself to say a few words of greeting and then hung up the phone.
Chen Yansen casually pushed his phone to the edge of the table and turned around and put the matter of Desay batteries out of his mind.
Although the deep blue battery has overcome the difficulties such as the shuttle effect, lithium dendrite formation and short cycle life, the production process becomes more difficult and the cost also rises due to the need to use high-purity carbon nanotubes, graphene, metal-organic frameworks and other materials.
If large-scale commercial use is to be achieved, it is necessary to further optimize the composition ratio of the solid electrolyte or develop a more effective technical solution to prevent capacity decay.
In addition, excessive energy density may cause the battery's thermal stability to decrease, which may easily lead to safety problems such as overheating and fire.
However, the first version of the design plan was just a trial run to test the reactions of the domestic and overseas markets.
As for the more complete technical version, it will naturally be released only when the best time comes.
Three days later, the Patent Association in Yanjing received the application, specification, claims and other relevant materials submitted by Ding Houmeng.
High-density lithium-sulfur battery?
Deep blue battery?
The energy density is 600 watt-hours per kilogram!
The staff member in charge of the preliminary review was slightly stunned, but quickly regained his composure.
It’s not that the data of 600 watt-hours per kilogram is not shocking enough, but that he is knowledgeable and has seen too many flashy patents.
Regarding lithium-sulfur batteries, the Bincheng Institute of Chemistry of the China Science and Technology Association had achieved scientific research results as early as last year. Its energy density also reached 420 watt-hours per kilogram, but this data was measured at a constant temperature of 25 degrees Celsius and a low discharge rate.
Once switched to low temperature conditions, the battery performance will be greatly reduced; and when discharging at high rates, the internal resistance of the battery will increase suddenly, and the actual output energy will be far lower than the theoretical value.
In addition, the safety risks of metallic lithium negative electrodes, the rapid capacity decay caused by the shuttle effect, and the poor conductivity of sulfur itself are the biggest obstacles to the commercialization and mass production of lithium-sulfur batteries.
Therefore, after confirming that the patent directions of Senlian Capital and Bincheng Institute of Chemistry seemed similar but were actually very different, the preliminary reviewer proceeded to the next step.
It was not until the substantive examination stage that the Patent Association noticed the anomaly of the Deep Blue Battery: its MOF diaphragm preparation process, self-healing electrolyte microcapsules, and three-dimensional electrode laser etching method successfully solved the problems of lithium-sulfur batteries, such as the shuttle effect, lithium dendrite formation, and short cycle life.
Although the costs of high-purity carbon nanotubes, graphene and metal-organic frameworks are relatively high, the cost of sulfides is lower. After comprehensive calculations, the overall cost is basically the same as that of ordinary lithium batteries.
Even if limited by different scenarios, operating conditions and battery status, the energy utilization rate may only be 60% to 70%.
But 60% of them also have an energy density of 400 watt-hours per kilogram, far exceeding the market level of 150 to 200 watt-hours.
In other words, the battery capacity has more than doubled within the same volume.
This means that for mobile phones, the battery life can be extended from one day to more than two days;
Switch to a computer, and the battery life can be increased from 8 hours to 20 hours;
If it is the B1 smart bracelet, the battery life can reach two weeks;
As a result, fields such as electric vehicles, drones, and energy storage will also undergo earth-shaking changes.
"Report it immediately! This is sensitive civilian technology!"
The head of the Patent Association made the decision immediately.
At the same time, several chief scientists from the Institute of Chemistry of the China Science and Technology Association were called together to review the practicality of the deep blue battery.
"Lithium-sulfur battery? Did Chen Jian from Bincheng Institute of Chemistry make new progress?"
"Is it Senlian Capital? Not Bincheng Institute of Chemistry!"
"Three-dimensional stacked electrode technology? Based on nanoporous aluminum current collectors and vertical carbon nanotube arrays, used to reduce battery volume?"
“And microcapsules made of thermoresponsive polymers?”
A group of bigwigs in the scientific research community each held a copy of the document, and as they flipped through it, they expressed doubts and surprise one after another.
"There are no problems with rationality, logic and potential feasibility, but the authenticity and repeatability of the data have not been verified. No one can say for sure whether this patent is reliable. I suggest going to Shenzhen and reproducing the experimental results again."
Sun Huamin from the Yenching Institute of Chemistry pushed up his glasses and spoke seriously.
"I agree with Mr. Sun's suggestion!"
“I agree!”
"Better leave now!"
The rest of the people followed suit.
A man's reputation is like the shadow of a tree.
Ever since Senlian Capital developed the Orange Z1 instruction set and the Aurora Future operating system, it has registered with the China Science and Technology Association.
If it were any other company, these bigwigs in the industry would never make a trip to Shenzhen in person.
But the main entity on the application documents is Senlian Capital, so they have no choice but to treat it seriously.
What if this technology is really feasible?
That evening, Cao Dahua received a call from Yuan Ruili, who asked him to prepare the materials and equipment needed for the experiment.
In two hours, several chief scientists from the Yenching Institute of Chemistry of the China Science and Technology Association will visit.
Deep blue battery?
Cao Dahua reacted immediately and agreed readily.
Then he synchronized the message to Chen Yansen.
"You can cooperate, but the MOF membrane and electrolyte formula must be maintained." Chen Yansen reminded.
"Boss, I understand." Cao Dahua responded excitedly.
He also didn't expect that the investment of 700 to 800 million yuan in research and development last year would actually produce results.
Chen Yansen put down his phone, lay down on the sofa in Ye Qiuping's house, and waited for dinner with a comfortable expression.
The other side.
After arriving in Shenzhen, Sun Huamin and others went straight to Orange Technology's laboratory.
The several people had clear division of labor and brought their assistants to conduct a comprehensive inspection of the Deep Blue battery, including capacity, voltage, internal resistance, power, high and low temperature performance tests, etc.
The results are astonishing!
Although the actual utilization rate of the Deep Blue Battery under normal temperature and high-rate discharge environment is only 61% to 63%, and the attenuation rate is also relatively obvious, it cannot withstand the energy density of 600 watt-hours per kilogram.
Triple the energy storage may not be achievable, but doubling it is still easy enough.
If used in civilian or military fields, the battery life of the equipment can be doubled.
"What are the attenuation rates of the Deep Blue battery in 5 and 10 years?" Sun Huamin asked curiously.
Generally speaking, the battery decay rate is not tested using actual waiting time, and accelerated aging tests are basically used.
By simulating extreme conditions, such as high temperature, high-rate charge and discharge, and specific state of charge, and then combining mathematical models to calculate long-term attenuation trends, the attenuation rate can be quickly assessed over five years or even longer.
Sun Huamin knew clearly that the R&D personnel of Orange Technology had definitely conducted tests.
"The capacity attenuation rate is about 20% in 5 years, which means a cycle life of 1,200 times. After 10 years of use, the capacity attenuation can be controlled within 30%."
A leading engineer replied.
He is the first person in charge of the laboratory and a senior R&D engineer recruited by Chen Yansen from Sion Power, a technical expert in the field of lithium-sulfur batteries, Zeng Jiwen.
"The attenuation rate is a bit high." Sun Huamin sighed.
"Lithium polysulfide is very prone to side reactions on the negative electrode surface, which consumes a large amount of active materials and causes the battery capacity to decay rapidly. In actual applications, Sion Power's lithium-sulfur battery will drop to 50% after 100 cycles. Deep Blue is a generation ahead of North America in terms of anti-fading."
Zeng Jiwen retorted bluntly.
"Are you a researcher at Sion Power?" Sun Huamin asked.
"A former Sion Power researcher, I am now the project leader of Deep Blue Battery." Zeng Jiwen nodded in response.
Sion Power is a battery supplier in the Beacon Country. It has achieved remarkable research results in the field of lithium-sulfur batteries. Under experimental conditions, it has raised the maximum energy density to 390 watt-hours per kilogram.
As an insider, Sun Huamin had certainly heard of it.
"Compared with ordinary lithium batteries, the advantages of Deep Blue batteries are enough to cover all the disadvantages."
Sun Huamin commented.
After saying that, he looked around the laboratory and found that strict system controls were implemented from temperature to humidity, cleanliness, safety, and electromagnetic compatibility.
There is no luck in success!
Senlian Capital has indeed invested a lot of manpower, material and financial resources in lithium-sulfur batteries.
In particular, Zeng Jiwen was previously one of the core members of Sion Power.
He really couldn't understand how Chen Yansen could recruit such talents?
After all, Sion Power has been receiving funding from the Lighthouse States Energy Association since 2009.
To put it bluntly, this is a lithium-sulfur battery research and development company with official endorsement.
After Sun Huamin and others left, after reporting through various levels, in less than half an hour, people from the local inspection office and the Anguo Association came to the door together and forced Zeng Jiwen and others to sign a confidentiality agreement without any explanation.
A total of 17 director-level engineers are included in the confidential system.
Although Deep Blue Battery's technology has not reached the level of a national defense patent, it is already on the edge.
The above judgment result is a sensitive technology patent.
Even if other battery factories obtain patent authorization, they are not qualified to access MOF membrane materials and electrolyte formulas.
The supplied materials are kept confidential and are supervised by the Anguo Association.
Yuan Ruili convened a meeting of the central departments overnight to find suitable industrial land for Senlian Capital in Shenzhen for the construction of a production base.
However, Chen Yansen prefers to first acquire an existing battery production plant, and then enter the production stage by simply upgrading the coating and packaging processes.
The site selection and construction of a new factory can also be carried out simultaneously.
After a little thought, Yuan Ruili agreed to Chen Yansen's plan.
The U-Pu battery factory, which had long been closed, was the first to come into the sight of both parties.
This factory was the one that deliberately provided a batch of batteries that did not meet production requirements when Orange Mobile was first starting out, and was later banned by Chen Yansen.
After that, Eupu Battery experienced three explosion accidents in Africa and soon went bankrupt.
This factory covers an area of 210,000 square meters. It was once the largest supplier of batteries for copycat phones in Huaqiangbei. Companies such as Big Pineapple, Transsion, OPPO, and Meizu were all its clients. But now it is overgrown with weeds and uninhabited.
After some investigation, Cao Dahua told Chen Yansen the true situation.
"It's not that it can't be used. Hurry up and clean it up, and start building the production line and recruiting people." Chen Yansen replied.
At the same time, Yuan Ruili selected a piece of land of 800,000 square meters for him in Pingshan.
The land is free to use!
But there is no such thing as a free gift in this world.
Shenzhen City naturally had its own plans and proposed to exchange land and 3 billion yuan of funds for a 15% stake in Deep Blue Battery.
Chen Yansen didn't refuse. It's not shameful to curry favor with someone powerful.
With someone to back you up, you can get twice the result with half the effort!
Of the 3 billion yuan, Shenzhen City State-owned Assets provided 2.5 billion yuan and the social security fund provided 500 million yuan.
Anyone who dares to touch Deep Blue Battery in the future should first ask Shenzhen City and the Social Security Fund whether they agree!
The other side.
Companies such as BYD, Xinwanda, Desay and B&T also received the news and initially shrugged it off.
But when they learned that Yuan Ruili gave Senlian Capital an 800,000 square meter industrial land for free, they immediately fell into deep thought.
Does Deep Blue Battery really solve the limitations of lithium-sulfur batteries?
It's impossible!
Sion Power, PolyPlus and Oak Ridge National Laboratory in the Beacon Country have actually developed lithium-sulfur batteries with a capacity of more than 400 watt-hours per kilogram.
However, the cycle life is mostly between 100 and 200 times, and this is the test result under ideal laboratory conditions, which is far below commercial standards.
In addition, when metallic lithium is used as the negative electrode, lithium dendrites will form during the charging and discharging process, which will then pierce the diaphragm and cause an internal short circuit in the battery, triggering thermal runaway problems.
Who doesn’t know that lithium-sulfur batteries have a high energy density?
But it has a short lifespan, decays quickly, and is prone to leakage and fire!
unless!
Deep Blue Battery solves all these shortcomings!
Wang Chuanfu asked someone to find out, but after a while, the middleman said: "The patent is confidential, and it is impossible to obtain more detailed data."
He immediately understood and realized that the design of the Deep Blue Battery was probably beyond his imagination.
Otherwise, Shenzhen City and Sunlink Capital would not be in a hurry to push Deep Blue Battery into the commercialization stage.
The question at hand is what the actual utilization rate of Deep Blue batteries can be and whether it will have an impact on BYD?
(End of this chapter)
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