Rebirth 2008: I Can Make Money Reading

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 Mu Yang's imagination. The orders of these garment factories are really crazy. It feels that whoever gets the goods first will seize the new clothing market first.

Xinghai Group had to make an announcement: 30 million semiconductor cooling chips have been sold out, and the next delivery time will be New Year's Day. No reservations will be accepted. Hoarding and hype are prohibited.

Next time, in the clothing factory that bought too much for the first time, it may not be able to buy the goods.

The focus of Mu Yang's work is still the battery project.

The biggest problem with ternary lithium batteries is safety.

In later generations, the spontaneous combustion incidents of new energy vehicles that everyone is most concerned about are manifested in the following specific manifestations: there are collisions and extrusion fires, car bottom scratches and impacts that cause battery fires, high temperature out-of-control fires, fires while charging, and even parked in the parking space. There was a fire for no reason, and there was a short circuit caused by flooding...

For example, a certain star’s Tesla hit a utility pole, and the car started to smoke. At this time, rescue must be done quickly. Don’t think that just a little smoke is okay, and don’t think that you can put it out with a fire extinguisher.

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

At this time, if the door is stuck, pry open the door or smash the glass to save people, let alone put out the fire with water.

Can water put out electricity and start a fire?

The manufacturer must say that the battery is safe, and it is impossible for the higher-ups to kill the new energy vehicle with a stick. Isn't this a slap in the face?

It can only strengthen the quality of batteries. Many battery factories conduct experiments that are much stricter than national standards.

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

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

Then, Xinghai Group will formulate it by itself, and publish the standard after it passes it, suggesting that the country implement 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 standards mean that after the battery of a new energy vehicle is subjected to the pressure brought by external stimuli, it will either be deformed, pressurized, or heated up, and then thermal runaway will occur, which will cause spontaneous combustion and explosion.

To this end, Xinghai Group Automobile Research Institute had to simulate the most extreme situations in the collision, such as acupuncture test, extrusion test, drop test, airgel heat insulation effect test, battery pack vibration test, etc., only these experiments passed , in order to ensure the safety and stability of batch product batteries.

For example, the acupuncture test is often heard in later generations. The test method refers to piercing the battery pack with steel needles, simulating the extreme collision of the car, causing the cells to be pierced and the battery to short-circuit.

The qualified standard of the national acupuncture test is: under the conditions of the battery pack test temperature greater than 0 degrees and SOC (battery remaining capacity) \u003e 95%, there will be no fire or explosion within 5 minutes.

Xinghai Group's acupuncture test requirements are: no fire, no explosion, no thermal diffusion.

For the drop test, the future national standard requires that the electrolyte does not leak, do not catch fire, and do not explode after being dropped from a height of 1 meter;

The Xinghai Group requires that there be no abnormality when falling from a height of 3 meters.

It can be said that Xinghai Group's testing standards are two or three grades higher than the testing standards of future countries.

If it is formulated according to national standards, it is estimated that in one year, accidents caused by battery safety problems will really kill many people.

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

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

In this way, Xinghai Group's battery technology authorization will be easier to sell and more valuable.

A few days ago, Mu Yang went to the electrolyte project team to help solve the problem, and today he went to the battery pack project team of the battery project team to check the situation.

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

Mu Yang walked into the battery pack project team. The working environment of this project team was not as strict as that of the electrolyte laboratory. When the employees saw the chairman, they greeted each other and continued to work. If you have an extremely difficult question, ask it right away while he is around.

Battery thermal runaway is one of the challenges inside battery packs.

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

The heat management technology of the seven core batteries is heat insulation technology first, and the heat insulation wall between the battery cells is made of nano-scale aerospace material aerogel with a thicker design. Coupled with the multi-layer design of fire blanket and anti-arc design, it can effectively reduce the heat transfer between the cells, as well as the transfer of heat and high-temperature gas to the car.

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

Xinghai Group's batteries are individually sealed and insulated.

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

In addition to the internal safety considerations of the battery pack, Xinghai Group's battery pack is also equipped with an ultra-high-strength "new battery physical protection structure" to protect battery safety from the outside.

This protective structure adopts a new generation of high-strength well-shaped battery housing (more rigid), reinforced with multiple 1500MPa ultra-high-strength steel beams, the upper cover assembly uses 1500MPa super-strong side protection beams, and the tray assembly The company's self-produced aluminum alloy 7090 bottom protection of 1000MPa is used (for reference, the steel strength of submarines and tanks is about 800-1000MPa), and the extrusion resistance of the whole package is three times that required by 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 1600MPa+, which is lighter and stronger.

Now the progress of the project has not yet progressed to the large-scale assembly of battery packs, but once the electrolyte problem is solved, a single battery can be produced.

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

[For example, Weilai’s 100-degree battery pack, the energy density of a single cell is 206Wh/kg, the battery pack adopts a 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, double The motor has 435 horsepower, can travel 605KM, and the curb weight is 2280KG (including battery pack, body 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 2.1 tons lighter than the 2.79 tons designed by later generations.

Xinghai Group’s new battery technology, the energy density of a single battery cell is above 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 design of the low version 600KM battery life and dual motors 625 horsepower, it will probably take 160 kWh, the weight of the battery pack is 683 kg, and the weight of the curb vehicle reaches 2783 kg.

If it is designed according to the high version of 800KM and three motors with 830 horsepower, it will need about 200 kilowatt-hours of electricity, the weight of the battery pack is 854 kilograms, and the weight of the whole vehicle reaches 3000 kilograms.

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

As soon as he was born, he was number one in the world.

It is a little 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 Level 7 reading system is still far from black technology.

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

a few days later,

Ten o'clock in the morning on December 5th.

Mu Yang is going to meet two people.

Sun Yi and Ma Yun.

That's right, Sun Yi of Softbank and Ma Yun of Ali.

Ali’s first batch of employees did not actually settle in Xixi Valley Ali Center until 2017, but Ma Yun advertised to settle in H City in 2000.

The Xinghai Group and Ali are neighbors after a few years. Mu Yang originally wanted to refuse their visit. He didn’t want to guess and knew what they were doing here, but there was no defense in meeting them and chatting. But when it came to buying shares in the Xinghai Group or something Certainly not.

People who are all at a high level will definitely meet a lot in those economic conferences in the future.

In 1999, starting from the second round of financing of Ali Baba, Sun Yi appeared, and since then has continued to support Ma Yun, and has 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 rejected the visit of Roach, chief economist of Morgan Stanley.

It is estimated that Sun Yi knew that if he visited Mu Yang, he would also be mercilessly rejected by Mu Yang, so he asked Ma Yun to act as a middleman, thinking that it was easier for Hua people to talk to each other.

In fact, Ma Yun also wanted to meet Mu Yang and get acquainted with her, so she just took advantage of this opportunity to refuse Sun Yi, so let's visit together, and had a conversation with Mu Yang before coming.

When it comes to wealth, Mu Yang dominates Ma Yun;

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

Mu Yang didn't hate or like Ma Yun, because the two were in different industries, which didn't affect his making money, and didn't interfere with his interests from the current point of view.

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

In terms of verbal abuse, Mu Yang felt that he really couldn't do as well as Ma Yun, and this guy relied on this to make a living.

As for the others, Mu Yang didn't bother to comment.

At present, the height of Muyang Station is different from the previous life, the things he can see are also different, and his mentality is different, so when Ma Yun called him, Muyang didn't have a trace of surprise or anger, just a little surprised, and then returned to plain, equal comminicate.

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

Now, Mu Yang often goes to the laboratory building. His office has been moved to the second floor of the Supercomputing Center in the headquarters base. He will move into the Xinghai Building after the decoration of the Xinghai Building is completed.

Other administrative departments temporarily work on the first floor of the supercomputing center, the high-level and R\u0026D center offices temporarily work on the second floor, and most R\u0026D personnel work directly in other laboratory buildings.

The single-floor area of ​​the supercomputing center is 5,000 square meters, with a total of 10 floors. The real supercomputing center is on the ninth floor.

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