Rebirth 2008: I Can Make Money Reading Chapter 328

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In just one day, all the 30 million semiconductor refrigeration chips hoarded by Xinghai Group were sold out, with an operating income of 1.5 billion yuan.

This is beyond Muyang's imagination. These clothing factories are really crazy about ordering. It feels that whoever gets the goods first will seize the new clothing market first.

Xinghai Group had to announce: 30 million semiconductor refrigeration chips have been sold out, the next supply time is New Year's Day, no reservations are accepted, hoarding and speculation are prohibited.

Next time, at a clothing factory with too much initial rush, there is a chance that it will not be available.

Muyang's work focuses on battery projects.

The biggest problem with ternary lithium batteries is safety.

In later generations, the spontaneous combustion events of new energy vehicles that everyone is most concerned about are manifested as follows: there are collisions and squeezing fires, car bottom scratches hit the batteries and fires, high temperature out of control fires, fires while charging, and even parked in a parking space. Unprovoked fires, and flooded short-circuits...

For example, a star's Tesla hit a telephone pole and the car was smoking. At this time, you must rescue quickly. Don't think that it's okay to smoke a little smoke, and don't think that you can put it out with a fire extinguisher.

The battery pack is in a sealed state, and the fire extinguisher cannot extinguish the inside of the battery. This is different from the general open fire situation. If a battery is damaged, it may be short-circuited, which will quickly cause a chain reaction.

At this time, if the door is stuck, pry the door or smash the glass to save people, and don't use water to put out the fire.

Can water put out electricity and start a fire?

The manufacturer must say that the battery safety is no problem, and it is impossible to kill the new energy vehicle with a stick. Isn't this a slap in the face.

We can only strengthen the battery quality. Many battery factories do experiments that are much stricter than the national standards.

Mu Yang is more aware of these issues, so he attaches great importance to battery safety.

At present, new energy vehicles have not yet emerged, and the country has not issued development and testing standards for ternary lithium batteries for new energy vehicles, or the requirements are not harsh.

Then, Xinghai Group will formulate it by itself. After passing it, it will publish the standard and recommend that the country implement it according to this standard.

Xinghai Group has set a higher threshold for entering new energy batteries, digging holes for itself, but also for digging holes for competitors.

When the ternary lithium battery is damaged, it is easy to catch fire.

For example, the external factors in the test standard mean that after the battery of the new energy vehicle is subjected to pressure caused by external stimuli, it will deform and pressurize, or heat up, and then thermal runaway will occur, which will lead to spontaneous combustion and explosion.

To this end, Xinghai Group Automobile Research Institute must simulate the most extreme situations in the collision, such as acupuncture test, extrusion test, drop test, aerogel insulation effect test, battery pack vibration test, etc. Only these tests passed , in order to ensure the safety and stability of batteries in batches.

For example, the acupuncture test that is often heard in later generations, the test method refers to piercing the battery pack with a steel needle, simulating the situation where the car encounters an extreme collision, causing the battery cell to be pierced and the battery to short-circuit.

The qualification standard of the national acupuncture test is: under the condition that the test temperature of the battery pack is greater than 0 degrees, and the soc (remaining capacity of the battery) is > 95%, there will be no fire and no explosion within 5 minutes.

The requirements of Xinghai Group's acupuncture experiments are: no fire, no explosion, and no heat diffusion.

In the drop test, the future national standard requires that the electrolyte will not leak, ignite or explode after falling from a height of 1 meter;

Xinghai Group requires that there is no abnormality in the drop from a height of 3 meters.

It can be said that the test standard of Xinghai Group is two or three grades higher than that of the future country.

If it is formulated according to national standards, it is estimated that in a year, many people will die in accidents caused by battery safety issues.

As long as the country agrees to adopt the battery testing standards of Xinghai Group, or a 20% discount will do, in the next few years, many battery manufacturers will not be able to jump over this threshold, and will also block many competitors.

At that time, there will definitely be many battery manufacturers, including overseas battery manufacturers, who will shout: Chen and concubine can't do it!

In this way, Xinghai Group's battery technology license is better sold and more valuable.

A few days ago, Muyang went to the electrolyte project team to help solve the problem. Today, he went to the battery pack project team of the battery project team to check the situation.

A battery pack, in layman's terms, is a box of cold and cold capsules. There are many rows of capsules in it. Each row is a battery module. Each capsule is a battery. The outer box and capsule are the outer and inner protective packaging. There are many battery modules and batteries in the bag, and the number is determined by the designed battery capacity, such as 70 degrees or 100 degrees.

Muyang walked into the battery pack project team. The working environment of this project team is not as strict as that of the electrolyte laboratory. When the employees see the chairman, they say hello and continue to work. If you have extremely difficult questions, ask them while he is there.

Thermal runaway of the battery is one of the problems inside the battery pack.

In order to prevent thermal runaway, Xinghai Group platform adopts seven core battery thermal management technology from module to whole package, which improves battery safety to a whole new level.

The thermal management technology of the seven-layer core battery is firstly the thermal insulation technology. The thermal insulation wall between the battery cells adopts the nano-scale aerospace material aerogel with thick design. In addition, the multi-layer design of fire blanket and anti-pulling arc design can effectively reduce the heat transfer between cells, as well as the transfer of heat and high temperature gas into the car.

This is the same design as the watertight compartments of some ships. Even if a place is damaged and leaks water, if it is blocked in time, the water will not affect the entry of other cabins. The Titanic also has a water barrier, but its water barrier does not extend to the top and is not completely sealed. After the water is full, it will still extend to other tanks.

The batteries of Xinghai Group are individually sealed and insulated.

In this way, even if one cell fails, it will not cause a large-scale chain reaction, and the system will be simpler and more efficient to deal with.

In addition to the safety considerations inside the battery pack itself, Xinghai Group's battery pack is also equipped with an ultrhigh-strength "new battery physical protection architecture" to protect the battery from the outside in all dimensions.

This protective structure adopts a new generation of high-strength well-shaped structure battery casing (better rigidity), and is reinforced with multiple 1500mpa ultrhigh-strength steel beams. The company adopts 1000mpa self-produced aluminum alloy 7090 bottom protection (for reference, the steel strength of submarines and tanks is about 800-1000mpa), and the anti-extrusion performance of the whole package is 3 times that of the future national standard.

If in the future 01 and 02 models, the company's self-produced titanium alloy tc4 will be used, and after laser heat treatment, the strength will reach 1600mp, which is lighter and stronger.

At present, the progress of the project has not yet reached the large assembly of the battery pack, but the electrolyte problem is solved, and a single battery can be produced.

A single battery is also not light, and the battery pack takes up a lot of weight.

[For example, Weilai's 100-degree battery pack, the energy density of the single cell is 206wh/kg, the battery pack adopts the CTP structure, the energy density of the battery pack is as high as 186wh/kg, and the weight of the battery pack is 100*1000/186=537kg. The motor has 435 horsepower, can travel 605km, and the curb weight is 2280kg (including the battery pack, the body is 1743kg). 】

The body of the Hummer ev is made of aluminum alloy on a large scale. Although the body size is large, the dual-motor model is reduced to 2.1 tons compared to the 2.79 tons designed by the later generations.

Xinghai Group's new battery technology, the energy density of a single cell is more than 260wh/kg, the battery pack adopts the future Kirin battery structure, and the energy density of the battery pack is as high as 234wh/kg. According to the low-level version of 600km battery life and dual-motor 625hp design, it is estimated that 160 kWh of electricity, the weight of the battery pack is 683 kilograms, and the curb weight reaches 2783 kilograms.

According to the high version of 800km, the three-motor 830 horsepower design requires about 200 kWh of electricity, the battery pack weighs 854 kilograms, and the curb weight reaches 3,000 kilograms.

In general, Xinghai Group's batteries are advanced in battery pack structure design, electrolyte, energy density and charging technology.

When he was born, he was the first in the world.

It is a bit ahead of the ternary lithium battery technology for new energy vehicles on the market in 2022, but it still fails to break through to black technology.

The technology of the 7-level reading system is still far from the black technology.

But to the outside world, perhaps the technology of Xinghai Group can be regarded as black technology.

After a few days,

December 5th at ten in the morning.

Mu Yang is about to meet two characters.

Sun Yi and Ma Yun.

That's right, Sun Yi from SoftBank and Ma Yun from Ali.

The first batch of Ali's employees will not actually settle in the Xixi Valley Ali Center until 2017, but Ma Yun announced that they would be stationed in H City in 2000.

Xinghai Group and Ali became neighbors a few years later. Muyang wanted to refuse their visit. He didn't want to guess and knew what they were doing, but it was not safe to meet and chat, but when it came to investing in Xinghai Group or something Certainly not.

They are all high-level people, and they will meet a lot at those economic conferences in the future.

In 1999, from the second round of financing of Ali Baba, Sun Yi appeared, and since then he has continuously supported Ma Yun. He successively invested 80 million US dollars in Ali Baba, accounting for 34.4% of the shares. I have to say that Sun Yi is very lucky.

Not long ago, Mu Yang turned down a visit from Roach, chief economist at Morgan Stanley.

It is estimated that Sun Yi knew about his visit to Mu Yang~www.mtlnovel.com~ It is estimated that he was also rejected by Mu Yang mercilessly, so Ma Yun was used as a middleman, and he felt that it was easier for Chinese people to talk to each other.

In fact, Ma Yun also wanted to meet Mu Yang and get to know him. She just took advantage of this bad opportunity to reject Sun Yi, so let's visit together and talk to Mu Yang before coming here.

When it comes to wealth, Muyang beats Ma Yun a lot;

Ali's current market value is about 8 billion US dollars, which is incomparable with Xinghai Group. Muyang's investment company also invests in Ali Baba's stock, which is why Muyang is willing to meet Ma Yun.

Mu Yang doesn't hate or like Ma Yun, because the two are in different industries, so it doesn't affect his money, and from the current point of view, it doesn't interfere with his interests.

From a business point of view, they are indeed very powerful;

As far as lip service is concerned, Mu Yang feels that he really can't do Ma Yun, this guy is relying on this to eat.

As for the others, Mu Yang was too lazy to comment.

At present, the height of Muyang Station is different from the previous life, the things that can be seen are different, and the mentality is different, so Ma Yun called him, Muyang was not surprised or angry, just a little surprised, and then returned to plain and equal comminicate.

The two came to Xinghai Group in a low-key manner, unlike Roach's high-profile visit.

Now, Muyang often goes to the laboratory building. His office has been moved to the second floor of the supercomputing center in the headquarters base. After the Xinghai Building is renovated, he will move into the Xinghai Building.

Other administrative departments are temporarily on the first floor of the supercomputing center, the high-rise and R&D center offices are temporarily on the second floor, and most R&D personnel work directly in other laboratory buildings.

The supercomputing center has a single floor area of ​​5,000 square meters and a total of 10 floors. The real supercomputing center is located on the 9th floor.

At ten o'clock in the morning, Mu Yang finally saw the two of them.

Chapter end