December of this year is getting closer and closer, and the weather in Dongyang is gradually getting cooler, plus it is drizzling today, and gusts of cold wind are coming, so that Kang Chi, who is waiting at the gate of Pangu Base, can't help but shiver.

"Why don't you go back inside?" Chen Hai was keenly aware of Kangchi's reaction, and hurriedly proposed, "I'll just bring Mr. Cai in." ”

Kang Chi shook his head: "It's okay, I'll still be carrying it for a while." ”

The main thing is that I have been staying in the cave during this time, and it is very warm without turning on the air conditioner, and I didn't expect it to be so cold outside.

And Kangchi insisted on welcoming Cai Yaobin in person, a large part of the reason was because of his own airport runway, which was about to be taken down by others......

Just feel,

I didn't get the first force on my own,

It's a bit weird, it's a pity.

However, the two of them didn't wait long, and soon heard a faint roar in the air, and then in the white mist directly in front of them, a small black dot gradually emerged, it grew bigger and lower, and finally slowly descended onto the runway, sliding towards the door of the Pangu base.

Looking at the plane that was getting closer and closer, Kangchi finally saw its appearance clearly, and couldn't help but ask Chen Hai: "What is ......this?" Ship 12? ”

"Well, just look at the size and the propeller."

Kangchi couldn't help but be a little disappointed, he thought it was good to see the fat girl pretending to be forced at close range, but he didn't expect Mr. Cai to be so low-key, and only took an ultra-small transport plane that was about to be eliminated.

In fact, Cai Yaobin will come over on 12, which is also intentional.

In addition to keeping a low profile and avoiding waste of resources, there is also a purpose to 'sell miserably'.

One is the miserable backward equipment,

One is the misery of insufficient funding,

The first one is miserable, as before, I want Kangchi to help them get some black technology in the military,

The second is miserable, naturally in order to bear the price of this 'surprise'......

……

Originally, in order to welcome Cai Yaobin, Kangchi also deliberately asked people to open all the gates of the Pangu base so that they could drive the plane directly into the tunnel, but a Y-12 slid in, feeling like mosquitoes flying into a small cave......

And Cai Yaobin, who was sitting on the plane, couldn't help but be a little dumbfounded after seeing the huge hole in the Pangu base.

Although one of the approval links to help Kangchi repair a large-scale secret laboratory passed through his hands, he didn't know the specific details of the construction, anyway, he only knew that Kangchi paid for it himself, and the military engineering team contributed to it, and what it was built depends on Kangchi's needs.

Getting off the plane, Cai Yaobin first looked around, and then couldn't help but sigh to Kang Chi who came up and said, "Dr. Kang is really wealthy......

"Everywhere, it's an empty shelf now, and most of the place inside is empty."

Kang Chi smiled and shook hands with Cai Yaobin: "Welcome Mr. Cai." ”

Cai Yaobin nodded, and after a few brief greetings, the two walked to the base by car.

"It's been almost a year since the last time Yanjing said goodbye, and Dr. Kang hasn't contacted me for so long, and he suddenly said that he wanted to surprise me, which simply whetted my appetite." Cai Yaobin, who was sitting in the car, couldn't help but ask, "Can you reveal something first?" ”

Kang Chi smiled: "There are two surprises this time, but one of them, I guess you should have roughly guessed it." ”

"Lithium battery?"

"Hmm."

Kangchi nodded directly, confirming his conjecture.

Because of the technical commonality of sodium batteries and lithium batteries, when his sodium batteries are released, lithium battery technology will make a breakthrough simultaneously, which is also expected by most people.

The difference is just a matter of time.

Cai Yaobin was also a little excited after hearing this, but he satisfied part of his curiosity and did not continue to ask.

The group soon found themselves inside the lab.

Looking at the various equipment and instruments densely placed in the laboratory, Cai Yaobin couldn't help but sigh again for Kangchi's wealth.

You know, this is his personal laboratory!

"That's it."

Just when Cai Yaobin was still observing the equipment inside, Kangchi directly pointed to a battery pack on the desktop and said: "Solid-state lithium-ion battery, energy density 1200wh/kg." ”

“！！？”

Not only Cai Yaobin, but everyone present was stunned after hearing Kangchi say the energy density of this battery lightly.

"Multi-...... How much energy density? ”

"1200wh/kg, 1.2 kWh per kilogram."

After receiving the confirmation, Cai Yaobin immediately gasped with excitement.

The sodium battery previously released by Kangchi has an energy density of 300wh/kg.

According to the previous use of similar level of technology to make sodium batteries and lithium batteries, the performance gap is about 2.5 times to calculate, Kangchi technology can make lithium batteries, the energy density should be about 750wh/kg.

And the 1200wh/kg battery ......

I can't even think of it!

"You...... Your battery technology...... Breakthrough again? ”

Even the well-informed Cai Yaobin couldn't help but tremble a little at this moment.

"Nope." Kangchi smiled, "It's just that the sodium battery released before has left a little leeway." ”

“……”

Cai Yaobin suddenly came to his senses.

However, if this is reversed, it means that Kangchi's sodium battery technology can achieve 500wh/kg?

It's just terrifying!

Cai Yaobin couldn't help but take a deep look at Kang Chi again,

The young man in front of him, who was a round younger than him, seemed ordinary, but it made him feel like a mountain with no end in sight.

"What about the cost?"

"Because I need some rare earth materials, it will be slightly higher, about 1,200 yuan per kilogram, I will double the sale, can you accept it?"

"Yes!" Cai Yaobin hurriedly nodded and said, "We want as much as you build!" ”

In fact, after guessing that this surprise was a lithium battery, Cai Yaobin imagined its application prospects.

The first thing that comes to mind, naturally, is the electromagnetic catapult of the aircraft carrier.

As we all know, the power of the electromagnetic catapult of the aircraft carrier is very high, for example, the power of a single catapult of the Ford is as high as 30 megawatts.

As a result, many people feel that if the aircraft carrier is equipped with a nuclear power plant, it will be able to solve the huge electricity demand of the aircraft carrier for the electromagnetic catapult device.

However, in fact, this is not the case, although the electromagnetic catapult is high, but it is only high power at the moment when the plane takes off.

Even if nuclear power is installed, it is impossible to keep the nuclear power unit at a power level that can meet the electromagnetic ejection, and the fluctuation of the power grid will be very large.

Therefore, it can only use battery energy storage, and when it needs to be ejected, it can use supercapacitors to carry out ultra-high power instantaneous discharge.

For example, on the USS Ford, the total power of the four catapults exceeds 120 megawatts, but if it is averaged, a 2-megawatt diesel generator, plus a supercapacitor and energy storage station, can meet the electricity demand of the catapult.

The supercapacitor can rush into a large amount of electrical energy in a short time, and can also release a large amount of electrical energy in an instant, but its natural loss of electrical energy is fast, and it is not suitable for energy storage, and is generally used as an auxiliary component of the energy storage station.

The relationship between batteries and capacitors is a bit like ammunition depots and weapons, one supports logistics and the other supports output.

Therefore, power generation, or conventional power and nuclear power, has never been the key to limiting the performance of electromagnetic catapults, but the energy storage.

If you use Kangchi's 1200wh/kg energy density lithium battery as an energy storage station of supercapacitors, due to its high energy density, small size, high safety and other characteristics, then the supercapacitor no longer has to worry about insufficient power!

This means that the number of aircraft that can be ejected by the aircraft carrier in a short period of time will be greatly increased.

At the same time, it can also be made as a catapult with higher power.

The increase in the combat effectiveness of the aircraft carrier is not even something that can be described by data.

In the ever-changing battlefield, the importance of fighter planes being fleeting, and being able to eject carrier-based aircraft in a shorter period of time can be imagined.

And just when Cai Yaobin was still immersed in the joy of supercapacitors, Kangchi lifted a black cloth again.

"This is the second surprise for you, Super Neodymium Strong Magnetic!"

(End of chapter)