2021-07-07

Chapter 198 Air Batteries

Glancing at him quietly, he said, “The density of the battery can be clearly stated, enough to It shows that you have some understanding of batteries.”

“In our battery industry, the charge-discharge rate is usually used to describe the relationship between the charging speed and the current. For example, the rate when the battery is fully charged in 1 hour is called 1C, and it only takes 30 minutes. The rate of charging is called 2C, and so on, if it exceeds 1C, it can be called fast charging. Nowadays, the charging rate of lithium-ion batteries can generally be 1C-3C, and the highest can go to 5C.”

“In addition to the bottleneck of the maximum charging rate, the charging rate that the battery can withstand under different SOCs is also different. Generally speaking, the charging rate will follow the rhythm of slow-fast-slow. Generally, when the SOC reaches more than 90% At this time, the internal resistance of the battery will increase significantly, which will slow down the charging rate.”

“It is true that the charging speed can be increased by increasing the current. However, if the current is too large, the diffusion rate of lithium ions inside the battery will be reduced. Failure to keep up with the electron diffusion rate will lead to a disconnection of electron-ion transport, which will affect the performance of the battery, and the achievable charging capacity will also be reduced accordingly. >

“Now an electric car generally needs a full charge of 82kwh, and there is no fast battery charging technology that can fully charge it within 10 minutes.”

Hearing her explain this, Li Mo immediately Understood, this is like drinking water. A normal person drinks about 3000ML of water per day. If it exceeds this amount, it will be harmful to health.

He asked, “What do you think about this issue?”

Quietly raised his cute little face and said, “The energy density of lithium batteries has reached its limit. In order to obtain greater energy and charging speed, we can only find another way.” Li Mop> nodded, and he agreed with this point. After a technology has developed to the extreme, even if it pays a great price It is difficult to make significant progress.

Seeing that his point of view was approved, Jingjing was obviously happy, “Do you know about air batteries?”

Air batteries? Although Li Mo has some understanding of the battery industry, he has heard the name of air battery, but he does not know the specific characteristics, so he hooked the head.

“The air battery is a type of chemical battery. The construction principle is similar to that of a dry battery, except that it releases electricity by absorbing oxygen in the air and performing an oxidation reaction inside the battery.”

“Let’s put it this way, metal materials are generally used inside the air battery, mainly “common metals” such as aluminum, lithium, and tin. During the use of the battery, oxygen is absorbed during discharge; oxygen is released during charging, basically No emission substances are produced. Even if the battery capacity is increased, there will be no environmental pollution.”

“And the energy density of air batteries is more than 10 times higher than that of ordinary lithium batteries, charging speed and safety. It’s also much better than lithium batteries.”

He talked quietly and seemed extremely professional.

Li Mo’s eyes light up, it releases oxygen when charging, absorbs oxygen when discharging, and basically does not emit waste. This kind of battery is environmentally friendly. And the energy density is 10 times higher, which means that the battery life of new energy vehicles using this battery will be increased by 10 times. But experience told him that if an invention is not promoted, it must have its fatal flaws.

Sure enough, Jingjing said with a dark face: “There has long been research on air batteries abroad. When the battery is discharged, solid oxides are formed in the electrolyte, which will adhere to the anode and block the The contact between the anode and the air finally caused the discharge to stop.”

“But these problems may be solved by inventing new materials to replace them. Those people in the laboratory say that I am a madman.”

Li Mo agrees with this point. The development of science and technology is from scratch, from slow to fast. Can people from a thousand years ago imagine that a big iron box can run on the road by itself?

“Can you tell me your phone number?” He took out his phone.

Jing Jing looked terrified: “I knew you harboring malicious intentions, don’t give it.”

The girl is quite vigilant, Li Mo helplessly said: “My name is Li Mo, a scientist, you can search my name on the Internet.”

Such a young scientist? Jing Jing looked suspicious, but when she saw the boy in front of her solemnly vowed, she hesitated and took out her mobile phone.

“The discoverer of Moxing, the first prize winner of the National Natural Science Award, the winner of the Abel Prize?”

“Is Li Mo you?”

One She was shocked that there were so many titles, and each of them was a heavyweight.

“There is a picture of me on it, you can compare it.” Li Mo helplessly said, he has never “begged” anyone to know him like this before.

“It’s a bit similar, but the one in the photo seems to be more handsome.” Jingjing made a comparison, and the man in the photo showed a bit of heroism, especially those eyes were very deep.

Li Mo didn’t know whether to cry or laugh, he is the kind of person who is more photogenic. He doesn’t need makeup, and the photos he takes are beautiful.

“I believe you, the phone number is 156XXXXXX.”

“But what’s the use of your number, I’m just a little researcher.” Jingjing doubted asked. The academia is also very clear, and the theoretical professors in the ivory tower have always looked down on them who are doing experiments.

Li Mo smiled slightly, “You’ll know when the time comes, goodbye.”

After getting the number, he got up and left, a huge plan slowly taking shape in his heart , “Maybe this is an opportunity.”

“Let’s go to Wang Lao’s place.” Li Mo returned to the gate and saw Xia Qing following him at the high level of the car, and there was no silhouette of Da Fei beside him. I want to come to Dafei to still play with his buddies, don’t wait for him.

Xia Qing nodded.

“You tell Fei Ge on WeChat, we’re leaving first.” Li Mo explained as he started the car.

The speed of BYD Han was very fast. After half an hour, red’s car stopped in a small village on the outskirts of the city.

Li Mo took out his phone, called Brother Hai, and told them they were already at the door.

After completing the “Rocket Engine” mission perfectly last time, Li Mo has been granted the right to come directly to the door, but out of courtesy, he notified Brother Hai “in advance”.

There was a sound of the door opening, Li Mo got out of the car, and a man with one arm hanging from his neck appeared at the gate.

It’s Brother Hai, he’s injured.

Li Mo walked forward unconsciously and asked, “Why are you injured?”

Brother Hai was still unshaven, with a vicissitudes smile on his face, “It’s okay, when I go out on a mission. Don’t be careful.”

“It will be fine in a few days.”

It seems that Brother Hai was injured during the mission, he is like a sharp sword of Wang Lao In the same way, seeing how he didn’t care, Li Mo knew that it would be futile to say it.

He lightly patted Hai Ge’s shoulder.

“Mr. Wang is with you at the High Level in the building, let’s go.” Brother Hai showed a knowing expression.

(End of this chapter)

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