Rebirth of science and technology academic master

Chapter 323 Lithium-Air Battery Performance Test

At 2:55, Qin Yuanqing, Principal Chen and Director Ye came to the laboratory together.

What appeared in front of them was a cylindrical battery about five centimeters in diameter and ten centimeters long.

"The first charging experiment of lithium-air battery starts now!"

Qin Yuanqing looked at the time, and it happened to be three o'clock, so he ordered the first charging experiment to start, and a researcher pressed the charging button.

The charger with a charging power of up to two kilowatts began to beep slightly, and on the proctoring screen nearby, the power reading in the lithium-air battery was rising rapidly.

10Wh.

20Wh.

50Wh.

Director Ye asked: "Academician Qin, how long does it take to charge?"

Qin Yuanqing smiled and said: "The weight of this round battery is about 2Kg. The theoretical weight is more than 5kWh. I estimate that it will take at least two or three hours to fully charge."

It takes two or three hours to charge with a two-kilowatt power supply, which is a scary figure when you think about it.

This means that the energy density of this lithium-air battery is equivalent to ten times the energy density of the best lithium batteries today, which is completely enough to subvert the current energy structure!

No one in the lab spoke, everyone was staring at the readings on the screen.

They all know how terrible the battery they created will be. Its appearance will subvert the existing battery field. Lithium batteries will be replaced by it. In the future, mobile phones and computers will be replaced by equivalent batteries. The lithium-air battery can last for dozens or hundreds of hours. A battery of the same size as a battery car can last six to seven hundred kilometers after being fully charged.

The new energy vehicles that are now on the road will have a battery life of three to five thousand kilometers with the same battery pack, which will completely promote the development of new energy vehicles.

And it is such a great product that was born in their hands.

One hour two hours.

At two hours and forty-eight minutes, the charging completed alarm buzzed, and the reading on the screen finally stopped at 2560wh.

In the laboratory, there was thunderous applause, and some researchers even shed tears of excitement.

After everyone finished celebrating, Qin Yuanqing pressed his hands and said, "Everyone, please be quiet. There are still a series of experiments to be done!"

"And judging from the current data, it is far from reaching the theoretical value, which means that this lithium-air battery still has great potential to be tapped, and we have a long way to go!" Qin Yuanqing said.

Everyone calmed down. As Qin Yuanqing said, the theoretical specific energy of this lithium-air battery can reach 5.21kWh/kg in the presence of oxygen. A 2kg battery is supposed to have 10420kwh, but now it is only 2560wh, which has just reached 4 One percent, which means there is still a lot of room for potential in batteries.

And although the current lithium-air battery has excellent performance, it is only the first charging experiment. There will be a series of tests such as discharge test, safety test, open circuit voltage test, etc. They are too happy now. .

However, most people's mentality has undergone subtle changes at this time. They have a touch of admiration for Qin Yuanqing and believe that it is right for them to return to their country.

To be honest, there are currently hundreds of people in the laboratory, and most of them have returned from overseas. They gave up the superior life and familiar environment overseas and had to get familiar with the environment again when they came back to China. The income is about the same, but their wives and children have to They mustered up the courage to re-familiarize themselves with an unfamiliar environment, and some of them reluctantly achieved this after many discussions with their wives.

But now that they have just come back, a great product is born in their hands, which fills their hearts with a sense of accomplishment.

If they are overseas, no matter how hard they work, they will never have a share in the research on lithium-air batteries. They want to participate, but often they are unable to.

Speaking of which, this is also a tragedy. Many people go to study abroad with a longing for overseas, and then stay overseas for a long time. But soon they will find that they are stupid and naive, and others are also wary of them. To be safe, they are unable to participate in many cutting-edge research, which is a kind of distrust.

But it's different when we return to China. This is their home country, and we won't guard against them just like we guard against thieves.

Everyone followed the procedure and started the discharge test. The discharge test used a five-kilowatt DC motor.

As a result, this lithium-air battery lasted for a long time before announcing that it was running out of power, which also proved that the power stored in it was not false at all.

"Academician Qin, congratulations to you and your team, you have indeed completed a great finished product!" Director Ye said to Qin Yuanqing, and then shook hands with the main technical backbone.

After these two tests were completed, Director Ye and Principal Chen left. Qin Yuanqing asked the researchers to create more standard lithium-air batteries for testing in various fields.

Originally, it was enough to manufacture 30 standard lithium-air batteries, but in order to speed up testing and accumulate more data, Qin Yuanqing manufactured a full 120 standard lithium-air batteries for testing in various fields.

Manufacturing this standard lithium-air battery only costs some money. Other laboratories will save what they can, but in Qin Yuanqing's laboratory, this problem does not exist. Because this little money is really nothing.

The funds for the two laboratories are extremely sufficient.

In the next half month, the entire team struck while the iron was hot and carried out various tests. After making corresponding adjustments based on the experimental results, it was announced that this lithium-air battery was ready for commercial use.

Among them, when it is charged and discharged more than 300 times, the capacity can still be maintained at more than 80% of the initial capacity. The operating temperature is between minus 40 degrees and 60 degrees, and modular design is possible. Moreover, the greater the mass and volume of a single lithium-air battery, the higher the energy density.

If it is made to be the same size as a current mobile phone battery, it can basically be used for a week without any problem. If it is used less frequently, it can be charged once a month or two months.

If used in the new energy vehicle industry, it can easily break the current new energy vehicle landscape. As long as the battery is sufficient, it can even last more than 10,000 kilometers on a single charge.

Of course, the production cost of lithium-air batteries will be much higher than that of lithium batteries. Even after large-scale industrial production, the cost will be three times that of lithium batteries of the same volume.

However, the performance is increased by more than ten times, and the cost is three times, which is completely acceptable.

And with the continuous breakthroughs in the production technology and various materials of lithium-air batteries, the production cost of lithium-air batteries will be further reduced.

While conducting a series of tests on lithium-air batteries, Qin Yuanqing was also attending a joint multi-department meeting. In addition to the Ministry of Science and Technology, there were also participation from the National Development and Reform Commission, the Ministry of Ecology and Environment and other departments.

A leader personally presided over the meeting. Qin Yuanqing introduced to everyone the breakthrough progress made in lithium-air batteries in scientific research, introduced the basic performance of lithium-air batteries, and the impact it will have on multiple industries such as the automotive industry and the electronics industry.

Of course, lithium-air batteries use oxygen in the air to react, so they are not suitable for aerospace and aviation. After all, if aerospace engineering goes to space, without oxygen in the air, electricity cannot be generated at all. The same reason is also temporarily used in aerospace engineering. Less than.

But whether it is civilian or military, it will have a huge impact. It is conceivable that with the promotion of new energy vehicles, the amount of oil will have a huge impact, which will greatly reduce the country's energy dependence on oil. This is undoubtedly beneficial to national security.

Similarly, Qin Yuanqing also explained that after the lithium-air battery is put into use, China's power usage will experience an explosive growth. Currently, China's power generation is not enough to cope with it.

Leaders of various departments listened carefully to Qin Yuanqing's introduction and took notes from time to time. The ministries and commissions that can participate in this meeting are all closely related to lithium-air batteries, which will affect their subsequent policy formulation.

During this period, leaders from various departments continued to consult, and Qin Yuanqing patiently explained. This joint meeting lasted for three days.

It’s just that there is no news at all from the outside world, and all walks of life will not realize that their industry will usher in an earth-shaking change. This major change will be greater than ever before, involving multiple fields.

At the same time, it was also finalized at the meeting that the Great Wall of China and Narcissus Era will produce lithium-air batteries, while Qin Yuanqing’s laboratory will only charge patent licensing fees. The patent licensing fee was also finalized, and will be charged at 10,000 yuan/ton, which is quite Charged at 3% of production cost.

Originally, the meeting only decided on the Great Wall of China. After all, it was a central enterprise. However, Qin Yuanqing argued for the increase of the Narcissus Age. After all, the Narcissus Age was in his hometown, and he had to take care of it no matter what to benefit his hometown.

Of course, this cannot be said explicitly. Instead, one state-owned enterprise and one private enterprise should create competition to avoid a stagnant pool of water due to lack of competition.

In the end, the Narcissus Age was added according to Qin Yuanqing's wishes.

"Academician Qin, you and your team are amazing. The lithium-air battery you have developed makes me full of confidence in China's rejuvenation and carbon neutrality goals!" A leader shook hands with Qin Yuanqing, full of appreciation.

"Leader, it's thanks to the country that it provides us with a peaceful and good research environment, otherwise we wouldn't be able to conduct scientific research with peace of mind!" Qin Yuanqing said sheepishly.

"The rejuvenation of China requires all Chinese people in all fields to work together and use our strength together. I think we all have a firm heart to achieve it." The leader said in an approachable manner.

Qin Yuanqing has always been unswerving and has strong confidence in the great goal of China's rejuvenation. No one can stop it. If anyone tries to stop it, then use the great power of science and technology to prove that all attempts to stop China's rejuvenation are delusions. They will all be crushed into powder by the general trend of history.

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