Finally, they returned to the long-lost Donghai City. This Spring Festival, they disappeared completely. Their family and friends all said they were going to play, and then no one was worried.

The older single young people in every family can gain great understanding in this regard! How to arrange the subsequent plan depends on Li Wei, and she knows how to deal with it better.

After dealing with these relatives and friends, Yang Ming has to leave the land of gentleness for a while. It is April now, and Maxwell China, located in the Magic City, is working in full swing.

Since the MW No. 2 racing spontaneously ignited in North New Zealand, the company has attracted fierce comments from all walks of life, including battery safety issues and battery durability issues.

Because this technology is too novel and advanced, if the battery safety problem is not solved, they will never get rid of the defect of spontaneous combustion, which will have too much impact on the launch of mass-produced cars.

Therefore, Yang Ming needs to be present in person to supervise the project.

But this time he felt that he was worthy of the high salary he paid!

The company has achieved results in battery safety issues that he cares most!

In fact, as early as last year after the electric racing was tested, Yang Ming emphasized this key issue, and also placed the most important battery and car manufacturing projects in China.

Related advanced technologies and designs have also been passed back. Last year, the team repeatedly tested these scattered fragments on the current stable lithium system batteries.

At the end of February this year, the American team for battery research came to China and expanded the R&D projects of Chinese companies.

In March, when the boss was reaping the most important love in his life, the team was fully engaged in analyzing and controlling the battery black technology brought by the boss before!

When the boss came back in April, they had already produced results in the parts they should worry about! More than one breakthrough has been made! All are waiting for testing!

Now the boss is here to inspect and the results are displayed smoothly.

There are mainly two major projects: battery safety protection system; improvements in hybrid lithium battery system.

Let’s talk about the first security system first.

The battery of the electric vehicle is a whole piece and is installed in a set of special protective materials, such as a whole battery panel of Tesla, and the magazine-type battery of the electric rookie "NIO".

As a racing car or electric sports car that pursues high power and high output, you must never neglect the safety of the battery, otherwise it will be like the one that burned a valuable prototype car at New Taipei.

Therefore, the company's head solemnly introduced: "We have specially formulated a set of strict standards for the testing process: we must pass the six limit levels and be reliable only after all of them are qualified."

"Which six paths?" Yang Ming asked.

"Please let me introduce the process in detail for you." The person in charge prepared the video and projected it on the screen. It was a video recording the battery test process.

The first level is fire - the battery pack is thrown into a fire that exceeds one thousand degrees and burns for more than two minutes. The outer protection system requires that it ensures that it does not catch fire or explode!

The second level is impact - a frontal impact at a speed of more than 120 kilometers per hour, or a free fall of twenty meters! It also simulates that when a battery is replaced, it may encounter a one-in-one-tenth probability of naked collision. It is necessary to ensure that all functions are normal!

The third level of water flooding is divided into freshwater environment and seawater environment! The entire large battery pack is thrown into water and soaked, and the waterproof and corrosion resistance are required to be airtight within 30 minutes.

The fourth level is ice and fire - which is the most common heat resistance and cold resistance test in the industry. It is hot to 65 degrees, cold to minus 35 degrees, and is constantly alternating hot and cold in the laboratory!

The fifth level is to conduct vibration tests. The company has obtained policy convenience and was allowed to send it to the National Aerospace Science and Technology Corporation to conduct high-frequency vibration tests in the rocket laboratory!

The last level is life and capacity. Durability is even more important for electric sports cars! The power density must be high, charge and discharge thousands of times, and the capacity attenuation of 10 years or 200,000 kilometers must be less than 20%!

The six levels constitute the hellish test of the company's new battery safety system.

The person in charge said: "The industry standards are almost implemented in this set, but the requirements are much lower! In the eyes of other companies, it is a qualified battery, but it is not qualified for us."

Yang Ming nodded with satisfaction: "So what about our performance through the product?"

The person in charge answered confidently: "With the efforts of our team, all of them have passed six battery safety systems for the postgraduate entrance examinations and have been on the test vehicle. Look here!"

In front of me is a modular battery, with a fire-resistant and collision-resistant material on the outside, a rectangular design, and a magazine-style installation similar to that of NIO, which is placed on both sides of the bottom of the car door.

"We also incorporate the car's active refrigeration solution. Even if it exceeds the battery limit, it still has a set of insurance that can ensure safety when it is at the verge of critical point!"

"Very good! Very good!"

Yang Ming watched the completion record and was quite satisfied. He spent a lot of money to invite you to work, but isn’t it just for efficiency like now?

The battery safety problem has been solved, which is definitely the most stringent testing solution in the world. The company is ready to use it on a new car and will effectively fight back against external doubts.

...

Then there is the second breakthrough - a battery with a hybrid lithium-ion system!

What is the most concerned about electric vehicle batteries? Capacity!

The development of the lithium battery system has reached its limit and it is difficult to improve its capacity.

If you want to change, unless there is a new system, it is still too difficult at the moment!

The laboratory has made improvements to the lithium battery system, transforming from simple lithium into a mixed material, with power density being increased by 35% and capacity being increased by 30-40%.

Battery power density is very important to the horsepower and speed of electric vehicles. The lithium system cannot take into account both power density and energy density, but the hybrid system can have both.

"Are there any flaws?" Yang Ming wanted to know.

"The manufacturing cost is relatively high, 400% higher than that of ordinary batteries." said the person in charge.

This is completely useless for the household electric vehicle industry! The cost has been increased by four times, and the capacity has increased by only 40%. It is better to spend a little more money and buy more ordinary batteries to achieve the same capacity!

"This is not a flaw, it is acceptable." Yang Ming doesn't think so, because this battery is not for family cars, but for sports cars that pursue the ultimate!

Their cost is very high, and their positioning has always been at the level of Pagani, Koenigsegg or Bugatti, so it doesn't matter if the battery cost doubles.

Top sports cars pursue small size, high power and more range! As for the cost that increases accordingly? It's nothing in the face of the car price that costs millions of dollars.

The person in charge said again: "In addition to the shortcomings of relatively high cost, it is the most suitable technology for the commercialization of high-end vehicle power batteries among our fifteen test projects."

"Give me a complete test report." Yang Ming wanted to check it out. He absorbed a lot of knowledge in this area and knew it after reading it.

It is indeed feasible, high cost is not the key, it is safe and reliable, and has high capacity - it is a highlight of technology for top sports cars!

"Six major items have also been passed?" Yang Ming asked again.

"Of course it's passed."

“Focus on developing them!”

All the problems that Yang Ming was worried about were solved. It solved the most difficult battery safety and unexpectedly increased the capacity by 40%. If it could enter the industrial production process, it would produce energy.
Chapter completed!