I kidnapped an alien civilization

Quietly glanced at him and said, Being able to tell the density of the battery is enough to show that you know something about batteries.

In our battery industry, the charge-discharge rate is usually used to describe the relationship between charging speed and current. For example, the rate when the battery is fully charged in 1 hour is called 1C, and the rate that takes only 30 minutes is called 2C. By analogy, more than 1C can be called fast charging. Nowadays, the charging rate of lithium-ion batteries can generally reach 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% When the time is high, 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. But if the current is too high, the diffusion speed of lithium ions inside the battery cannot keep up with the diffusion speed of electrons, which will lead to the disjoint movement of electrons and ions, which will affect the performance of the battery and the charging capacity that can be achieved. It will also be reduced accordingly, and the life of the battery will be even more appalling, and there may even be a danger of fire and explosion.”

Now an electric car generally needs 82kwh of electricity to be fully charged, and there is no battery fast charging technology that can fully charge it in 10 minutes.

Hearing her explanation, Li Mo immediately understood that this is like drinking water. A normal person should drink about 3000ML of water per day, and if it exceeds this amount, it will be harmful to health.

So what are your thoughts on this question? he asked.

Looking up at her cute little face, Jing Jing said: The energy density of lithium batteries has reached its limit. If we want to obtain greater energy and charging speed, we can only find another way.

Li Mo nodded. He agrees with this point. After a technology has been developed to the extreme, even if it pays a huge price, it is difficult to make significant progress.

Seeing that her point of view was approved, Jing Jing was visibly happy, Do you know about air batteries?

Air battery? Although Li Mo has some knowledge about the battery industry, he has heard of the name air battery, but he doesn't know the specific characteristics, so he shook his head.

The air battery is a kind of chemical battery. The construction principle is similar to that of a dry battery, the difference is that it absorbs oxygen in the air and undergoes an oxidation reaction inside the battery to release electrical energy.

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 production Emissions. 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, and the charging speed and safety are much better than lithium batteries.

Talked quietly and eloquently, appearing extremely professional.

Li Mo's eyes lit up. He releases oxygen when charging and absorbs oxygen when discharging. Basically, no waste is emitted. 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 popularized, it must have its fatal flaw.

Sure enough, Jing Jing's face darkened and said: Air batteries have been studied abroad for a long time. When the battery is discharged, solid oxides are formed in the electrolyte. This substance will adhere to the anode and block the contact between the anode and the air. causing the discharge to stop.

But these problems may be solved by inventing new materials instead. Those people in the laboratory say that I am a fool.

Li Mo agrees with this point. The development of science and technology starts from scratch, from slow to fast. Can people 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 had bad intentions, so I won't give it.

This girl is quite vigilant, Li Mo said helplessly: My name is Li Mo, I am a scientist, you can search for my name on the Internet.

Such a young scientist? Jing Jing looked suspicious, but seeing the boy in front of her swearing, she hesitated and took out her phone.

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

Li Mo is you?

She was startled by a search, there are so many titles, and each one is heavyweight.

There is my photo on it, you can compare it. Li Mo said helplessly, he had never begged others to know him like this.

It's a bit similar, but the one in the photo seems to be more handsome. Jing Jing compared it, and the man in the photo showed a bit of heroism, especially the pair of deep eyes.

Li Mo didn't know whether to laugh or cry, he was a photogenic person, without makeup, the photos he took were beautiful.

I believe you, the phone number is 156XXXXXX.

But what's the use of my number, I'm just a little researcher. Jing Jing asked suspiciously. The distinctions in the academic world are also very clear, and those theoretical professors in the ivory tower have always looked down on them who do experiments.

Li Mo smiled slightly, You will know when the time comes, goodbye.

After getting the number, he got up and left. A huge plan slowly took shape in his mind, Maybe this is an opportunity.

Let's go to Mr. Wang's place. Li Mo returned to the gate, and saw Xia Qing was waiting for him in the car, and Da Fei was nowhere to be seen. Thinking that Da Fei is still playing with his buddies, don't wait for him.

Xia Qing nodded.

You tell Brother Fei via WeChat, we're leaving first. Li Mo confessed while starting the car.

BYD Han's speed was very fast. Half an hour later, the red 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.

Since he completed the Rocket Engine task perfectly last time, Li Mo obtained the right to visit the door directly, but out of politeness, he still notified Brother Hai in advance.

There was the sound of Xisuo opening the door, Li Mo got out of the car, and a man with one arm hanging around 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 of smile on his face, It's okay, I was careless when I was on a mission.

It will be fine in a few days.

It seems that Brother Hai was injured while carrying out the mission. He is like a sharp sword of Wang Lao. Seeing that he doesn't care, Li Mo knows that it is useless to say anything.

He patted Haige on the shoulder lightly.

Old Wang is waiting for you upstairs, go quickly. Brother Hai had a knowing expression.