Luan Feng had already run out to greet the triumphant warriors, but what he said was very unpleasant to the ears.

"Zhang Xuan! If you come back two days later, you won't be able to see me."

Zhang Xuan's face was full of question marks: "Are you finished?"

"You're finished. Wan Feng and I are going to play in the south. Of course you won't be able to see me anymore."

Listen, when you say this, others will think you are going to pass away.

"I want to go to the south too."

"Didn't you agree to stay home and help me look after the factory with Jiang Min? Why did you change your mind again? Are you sure about this?"

Wan Feng didn’t find it strange at all that Zhang Xuan wanted to go to the south with him. It would be strange if she didn’t ask to go somewhere.

But asking to go and being able to go are two different things.

Just in case, Wan Feng also applied for a border pass for her this time, of course using someone else's name.

Her household registration is in Longjiang, and Wan Feng does not have the ability to travel back and forth to Longjiang to apply for a border pass for her within two or three days.

In the late 1980s, it was not too difficult to get an ID. If all else failed, Wan Feng was confident that he could get in by making a fake ID.

It’s just a matter of putting a stamp on the photo, not that difficult.

"Just let Jiang Min and Erman look after the factory. You seem so confused in everything you do. I'm afraid you'll get lost outside."

"What are you talking about? Do you mean I'm that dead person?" Luan Feng rolled his eyes in dissatisfaction.

Zhang Xuan smiled cunningly: "You said that yourself."

Luan Feng immediately displayed his family's unique skill, the Nine Yin White Bone Claw, and chased Zhang Xuan all over the yard.

Wan Feng didn't have time to watch his two women running in the yard, because it was useless to watch. Even if he saw the reaction, he wouldn't dare to straighten his back. It was so embarrassing that it was better not to watch.

So, while the two women were chasing each other, Wan Feng returned to the factory. He wanted to see what Yang Li and his classmates were doing.

When Wan Feng arrived at Yang Li's laboratory, Yang Li and her classmates were not conducting any experiments, but were reading some books.

"Mr. Wan, although we're studying chemistry, we haven't had much exposure to lithium in school. So what we're doing now is reading all the books related to lithium ions to fully understand its advantages and disadvantages, and to build theoretical reserves for future experiments."

Wan Feng had no doubt about Yang Li's statement. This was what they should do.

He would be really worried if they started the experiment right away. Lithium is not a good thing, otherwise Samsung's mobile phone would not have turned into a bomb.

"Mr. Wan, we've looked through these Chinese and foreign books. Although the lithium battery was successfully developed at Bell Labs in 1970, it hasn't been commercialized for so many years. Mr. Wan, are you sure this thing can be successfully used as a commercial battery?"

Although lithium-ion batteries were successfully researched in the 1970s, they were not put into commercial use until May 1991, when Japan's Ben Yingni produced the first lithium-ion battery for mobile phones, officially bringing lithium batteries to the market.

Of course Yang Li and the others didn't know.

Lithium is a very active alkali metal that can provide a higher voltage. It can provide a voltage of 3V, while lead-acid batteries only have 2.1V and carbon-zinc batteries only have 1.5V.

Another characteristic of lithium is its lightness. It is the lightest of all metals, so light that it can float in kerosene. Furthermore, lithium ions have a small ionic radius, making them easier to move in the electrolyte than larger ions.

These are the advantages of lithium-ion, but it also has disadvantages.

Because of its unusual activity, it can react with water and oxygen, and it can react with nitrogen at room temperature.

Therefore, it is extremely difficult to preserve. Whether in water or kerosene, it will float and burn. Chemists finally had to force it into vaseline or liquid paraffin. This makes the storage, use, and processing of lithium metal much more complicated than other metals, and it has very high environmental requirements.

To sum up, lithium batteries have not been used for a long time.

But these problems are not a problem for Wan Feng, although he is not a chemist and does not understand the working principles of lithium-ion batteries.

But in his previous life, when he was bored and browsing the Internet, he had studied a lot of random things. He had no other purpose but curiosity. He wanted to see how those random things worked and what materials they were made of.

These miscellaneous things cover almost 360 industries, from needles and thread to rockets and missiles.

Some of the things he had seen were forgotten after a long time, but the things he had seen close to his rebirth were still fresh in his memory.

Lithium batteries are probably the thing he remembers most.

He had searched for lithium-ion batteries on Baidu several times, so he had some general idea about them.

When lithium-ion batteries are used on a large scale, they consist of positive and negative electrodes, separators, and electrolytes. The negative electrode uses graphite and carbon, the positive electrode uses lithium cobalt oxide, and the electrolyte uses organic solvents containing lithium salts.

Wan Feng recognized all the characters on these things when they were written, but he had no idea how to combine them specifically. Anyway, when Yang Li and the others were conducting the formal experiment, he could just give them a casual reminder, and maybe they would succeed.

"Don't worry. I came here to ask you. Our laboratory building is now complete. Your chemistry group will be allocated several offices and laboratory storage rooms. Please consider the best location for your laboratory. Then, make a list of the experimental equipment, materials, etc. that you need. The company will purchase them. If they are not available in China, we will get them from the Soviet Union. You must hurry. I will take these lists with me when I go to Longjiang next time."

"Okay! We'll do this right away."

"It's better to write it in detail so that we can get it all done at once, so as to avoid having to search here and there later."

Wan Feng felt that buying these things would cost him a huge sum of money, and it would definitely not be a small amount that could be recovered.

Of course, if we get this number in the Soviet Union, it will be greatly reduced.

Seeing that it was already noon, Wan Feng drove to Wahou Market to pick up Zhan Honggui and others. He would take them to visit his factory in the afternoon.

After meeting Zhan Honggui and his three companions, Wan Feng took them to a snack bar and ordered a few side dishes for lunch.

"I'll take you to visit my factory this afternoon."

"Didn't you say that your factory produces motorcycles? Is that true?" Wang Zhonghai questioned.

"Have you been sitting here eating and waiting to die these past two days? You know whether it's true or not just by hearing what others say. Let me tell you, there are two types of motorcycles produced here now. You've seen the Jiangwei 70, right? And you've also seen the Nanwan 100, right?"

Wang Zhonghai nodded.

Wan Feng looked out the window at the Wahou Machinery Factory a few hundred meters away and said, "See that factory with smoke coming out of the chimney? That factory produces the Jiangwei 70. They currently have a production capacity of 300,000 units."

"The Jiangwei 70 is produced by that inconspicuous factory?"

"This is the main factory. We built a branch factory in Yawan last year. Otherwise, how could we have produced 300,000 units?"

"This is such a magical place. You can make anything here." Zhan Honggui admired sincerely.