Chapter 257: Restless experts

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"400Wh / kg." Liao Changxue sent out the laboratory's battery energy density in the group. He said: "The energy density should be too high. This is not the technical index of Panasonic 18650, but it exceeds NCA21700!"
Liao Changxue became more excited!
He was in the laboratory and saw with his own eyes that the energy density tested after the laboratory battery sample came out was indeed 400Wh / kg, while the highest unit energy density of Panasonic 18650 battery was only 250Wh / kg.
At present, the laboratory is continuously testing the durability, life and safety of the battery, and in order to complete Tesla's order, the laboratory has actively reduced the battery density.
Liao Changxue can also be regarded as an expert in this industry. For the first time, I have seen the company do this. With the world's first battery technology, instead of publicizing, celebrating, and producing, it has instead reduced the battery density in a low-key manner to complete past orders.
Liao Changxue must not tolerate this 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 couldn't sit still. Here are the top talents in the field of Xia Guo Battery. In addition to the first-line technical experts in the factory, there are also many professors from universities and research institutes that have cooperative relationships with battery companies.
Panasonic's NCA21700 lithium battery with the highest energy density has an energy density of 340Wh / kg, and the output is not very large. It is specially supplied to Tesla. This battery is also the best battery in the world's commercial field.
In the group, many technicians and experts have taken Panasonic NCA21700 as the catch-up target, set a plan and invested a lot of energy in the hope that they can meet the 340Wh / kg line, but all have failed and ended.
Is Pangu technology successful now? And it's so easy.
"What's the cost? Compared to Panasonic."
"How long can I live?"
"Are there plans for mass production?"
"Lao Liao, I have to report to this! If Pangu Technology is also a domestic battery! Is it possible to cooperate with us." Lao Liao's former colleagues and friends, Li Yudong, the chief technician of BYD Battery Company, personally wrote to Liao Changxue.
BYD is also an international leader in the new energy industry of lithium batteries. The technology has also touched the latest lithium batteries of 235Wh / kg.
If you consider the price advantage, BYD can compete with Panasonic's most conventional 18650 battery in the market.
But when throwing the Panasonic NCA21700, BYD felt a bit laborious.
The NCA21700 is currently relatively expensive, and no car company except Tesla has purchased it, but who knows what the future holds?
Panasonic has mastered the technology, it is only a matter of time to reduce costs and increase production. BYD has not mastered the technology, which is more troublesome.
Where do I know that Panasonic has not yet established a foothold at the level of 300kw / h, a company that has never been involved in the battery industry can buy Panasonic's 18650 factory and produce a battery that is more stubborn than 18650 within a week!
Liao Changxue thought of the words of his boss Xiao Ming and replied, "Welcome you to visit."
Of course, more people think that Liao Changxue is bragging! How easy is the energy density of 400? If it is really, under the global appeal to promote new energy vehicles, aren't auto companies seeking to learn from battery factories in Liao Changxue?
"Really? Can we come and visit and learn?"
"Don't talk about four hundred, it means three hundred are getting rich!"
"Cost, you haven't said the cost yet."
Liao Changxue proudly said: "The cost is only lower than Panasonic 18650."
"We are coming to visit and learn!"
"You are not allowed to visit! I brag you!"
"Of course welcome!" Liao Changxue invited.
Finally, in the group, everyone agreed that two weeks later, a team would visit and learn the day before the order was delivered to Tesla.
In fact, Liao Changxue had his own plans. Even though Xiao Ming said that he would close the production line after completing Tesla's order, he still hoped to work harder to keep the production line.
Many battery industry experts in Xia State have worked hard for more than 10 years for more than 10 or 20 points of energy density. Now Xia Guo ’s technology has been effective, and it has to be shut down or not used. .
Jiangcheng, Pangu Science and Technology Park, Quantum Physics Laboratory.
After discussions with Xiao Ming and Xu Limin's team, they decided to open a micro-core battery laboratory.
At this time, Xu Limin looked at Xiao Ming with quite complex eyes. He didn't know how many secrets his boss had hidden.
Micro-core batteries are no stranger to scientific research projects.
In spacecraft, it is used in human heart pacemakers and other fields.
But at present, the technology still faces two problems.
One is the relationship between energy and mass.
Like fuel cells, energy is directly proportional to battery quality.
Nuclear batteries with larger energy sources are relatively large in size and mass.
Because the electrons of other nuclear batteries need to be captured by semiconductor materials, semiconductor materials will be consumed at the same time as they are captured, so they must be large.
In this way, micro-core batteries are not as convenient as chemical batteries such as lithium batteries and nickel batteries.
This is why most nuclear batteries are used in the aerospace field and not in human daily life, because according to current technology, you cannot make the nuclear battery that drives a computer as small as a lithium battery.
The nuclear battery used by the pacemaker also uses a small volume of 钚 238. This is because the electrical energy used to pace the heart is also very small. There is no way to drive computers and mobile phones with this electrical energy.
Another problem is safety. A small dose of plutonium 238 will not cause radiation pollution to humans in a closed metal case, but nuclear batteries with a higher energy will definitely cause radiation damage to humans.
There is still a way to avoid being radiated ~ EbookFREE.me ~ then add a radiation-proof casing, usually the casing is heavier than the battery itself.
And using radioactive materials that do not harm the human body, such as small doses of thorium, potassium 40, etc., the electrons spilled from these radioactive materials are captured and generate very little electricity. This electricity is used to click on the human body and you do n’t feel anything There will be.
The above two problems are the bottlenecks of the current transition of human micronuclear batteries from military and aerospace applications to civilian use.
This kind of bottleneck is not a matter of two experiments. A few papers will be successful. It will take some great strides in basic disciplines such as new materials science and physics to make the vision a reality.
Xiao Ming ’s micro-core battery technology is actually very simple.
Radioactive material undergoes beta decay, overflowing electrons, and the electrons are captured by the semiconductor material to form a current.
Then the problem comes. Micronuclear batteries require three raw materials: radioactive elements, semiconductor materials, and protective shells.
After repeated questioning by Xu Limin, Xiao Ming gave the answer.