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“400Wh/kg。 Liao Changxue sent out the energy density of the battery in the laboratory in the group, and he said: "It should be that the energy density is too high, which is not the technical index of Panasonic 18650, but exceeds the NCA21700!"

Liao Changxue became more and more excited!

He was in the laboratory and saw with his own eyes that the energy density tested after the laboratory battery samples came out was indeed 400Wh/kg, while the highest single energy density of Panasonic 18650 battery was only 250Wh/kg.

At present, the laboratory is still testing the durability, life and safety of the battery, and in order to complete Tesla's order, the laboratory has taken the initiative to reduce the battery density.

Liao Changxue is also an expert in this industry, the first time to see the company do this, with the world's first battery technology, do not promote, do not celebrate, do not produce, but low-key reduce the density of the battery to complete the past orders.

Liao Changxue absolutely couldn't bear this kind of behavior, he must express the excitement in his heart.

Not every battery factory can achieve a battery energy density of 400Wh/kg.

The people in the group can't sit still, here are all the top talents in the field of batteries in Xia Guo, in addition to the front-line technical experts in the factory, there are also many professors from university research institutes that have cooperative relations with battery companies.

Panasonic's lithium battery with the highest energy density NCA21700, with an energy density of 340Wh/kg, and the output is not very much, specifically for Tesla, the battery is also the best battery in the global commercial field.

In the group, many technicians and experts take Panasonic NCA21700 as the goal of catching up, and they have made plans and invested a lot of energy in the hope of hitting the 340Wh/kg line, but they have all failed.

Now Pangu Technology has succeeded? And it's so easy.

"What is the cost? compared to Panasonic. ”

"How much lifespan can you reach?"

"Do you have plans for mass production?"

"Lao Liao, I want to report this matter to the above! If Pangu Technology makes it is also a domestic battery! Is it possible to cooperate with us? Lao Liao's former colleague and friend, Li Yudong, chief technician of BYD Battery Company, sent a private message to Liao Changxue.

BYD is also a leader in the lithium battery new energy industry in the world, and the technology has also touched the latest lithium battery of 235Wh/kg.

If you count the price advantage, BYD can compete with Panasonic's most conventional 18650 battery in the market.

But when throwing Panasonic out of the NCA21700, BYD felt a little struggling.

NCA21700 the current cost is relatively high, and other car companies except Tesla have not purchased it, but who knows what the future holds?

Panasonic has already mastered the technology, and it is only a matter of time before reducing costs and increasing production is a matter of time, while BYD has not yet mastered the technology, which is more troublesome.

Who knows that Panasonic has not yet gained a firm foothold in the 300kw/h level, and a company that has never set foot in the battery industry can acquire the Panasonic 18650 factory and produce a more powerful battery than the 18650 within a week!

Liao Changxue thought of the words of the boss Xiao Ming and replied: "You are welcome to visit." ”

Of course, more people also think that Liao Changxue is bragging! The energy density of 400 is so easy to do? If it is true, under the appeal of the global implementation of new energy vehicles, automobile companies are not begging to learn from Liao Changxue's battery factory?

"Really, can we come and study?"

"Don't say four hundred, even three hundred are rich!"

"What about the cost, you haven't said the cost yet. ”

Liao Changxue said proudly: "The cost is lower than that of Panasonic 18650. ”

"We're coming to visit and learn!"

"I'm bragging!"

"Of course welcome!" Liao Changxue took the initiative to invite.

Finally, everyone agreed in the group that two weeks later, they would form a team to visit and study the day before the order was delivered to Tesla.

In fact, Liao Changxue still has his own plans, even if Xiao Ming said that the production line will be closed after completing Tesla's order, he still hopes to work hard to keep this production line.

There are many experts in the battery industry in Xia Guo, who have worked hard for more than ten or twenty years for more than ten or twenty energy density, and now Xia Guo's science and technology are effective, and they want to close and not use, Liao Changxue's heart is really unbearable.

Jiangcheng, Pangu Science and Technology Park, Quantum Physics Laboratory.

After discussing with Xu Limin's team, Xiao Ming decided to open the micronuclear battery laboratory.

At this time, Xu Limin looked at Xiao Ming with quite complicated eyes, he didn't know how many secrets his boss was hiding.

Micronuclear batteries are not unfamiliar scientific research projects.

It is used in space vehicles, human pacemakers and other fields.

However, at present, the technology still faces two problems.

One is the relationship between energy and mass.

As with fuel cells, energy is directly proportional to the mass of the battery.

The larger the energy source, the larger the volume and mass of the nuclear battery.

Since the electrons of nuclear batteries need semiconductor materials to be captured, semiconductor materials are consumed heavily while capturing, so they must be large.

In this way, micronuclear batteries are not as convenient as lithium batteries, nickel batteries and other chemical energy batteries.

That's why most nuclear batteries are used in aerospace and not in everyday human life, because with current technology, you can't make the nuclear battery that drives a computer as small as a lithium battery.

The nuclear battery used in the pacemaker uses plutonium-238 and is also very small, because the electric energy used by the pacing heart is also very small, and this electrical energy cannot drive the computer and mobile phone to run.

The other is the safety issue, a small dose of plutonium-238 in a sealed metal shell will not cause radiation contamination to humans, but a larger nuclear battery will definitely cause radiation damage to humans.

If you want to avoid being irradiated, you can add a radiation-proof shell, which is usually heavier than the battery itself.

The use of radioactive materials that are not harmful to the human body, such as small doses of tritium, potassium 40, etc., the electrons spilled by these radioactive materials are captured and produce very little electricity, and you will not feel this electricity when you click on the human body.

The above two problems are the bottlenecks of the current shift of human micronuclear batteries from military and aerospace applications to civilian use.

This kind of bottleneck is not to do two experiments and produce a few papers to succeed, but it requires a certain leap forward in basic disciplines such as new materials science and physics to be able to turn the idea into reality.

The principle of the micronuclear battery technology exchanged by Xiao Ming is actually very simple.

The radioactive material undergoes β decay, spilling electrons, which are captured by the semiconductor material to form an electric current.

So the problem is, micronuclear batteries need three raw materials, radioactive elements, semiconductor materials, and protective shells.

Under Xu Limin's repeated questioning, Xiao Ming gave the answer.