1991 Starting from the core

In the clean room, Su Yuanshan, wearing dustproof clothing, stood with Chen Jianguo, staring closely at every step of the etching machine.

"You want to take a look?" When the etching machine stopped, Chen Jianguo took out the silicon wafer and put it under the microscope: "It seems that I can't see clearly."

"Well, I need an electron microscope. Thank you, senior brother."

"You're welcome. Many experiments at the nanometer level are purely based on luck." Chen Jianguo chuckled and said, "I hope I'm lucky."

"I think so too - if it works out, I'll send you a paper with your name on it."

"No, no reward for no work. I don't even know a thing about this thing. Just open a machine and add a name." Chen Jianguo waved his hand and said, "Is there anything else? If nothing happens, I will continue to do my job."

"Uh... no more."

Su Yuanshan put away the silicon wafer, turned and walked into the laboratory next door.

Although he was patient, he was still a little scared by countless failures. It happened that Chen Jianguo came back to the science and technology park to verify the data, so he decided to change his luck and ask Chen Jianguo to do it for him.

Under a scanning tunneling microscope, the Hall device on the silicon wafer is perfectly prepared.

Su Yuanshan lightly clenched his fist and began to perform the Hall test.

"August 8, 1994, 21:15 in the evening. Experimenter, Su Yuanshan."

"The Graphene Hall Trial Begins."

"Sample number, 0071. The thickness is 3 atomic layers."

"Ambient temperature is 27 degrees Celsius."

"The experimental steps are as follows..."

"..."

"Experimental summary."

"I conducted Hall effect related experiments at room temperature on a graphene sample with a thickness of 3 atomic layers."

"During the experiment, the electrode and graphene were in good contact. The magnetic field strength of the sample was measured at 0.353 T using the Vanderburg method. Different data were obtained through the Hall voltage at different current intensities, and the results were processed and analyzed."

"The Hall coefficient RH of graphene is obtained =7.00×10-7 m3/C, the carrier concentration n=10.52×1024/m3, and the Hall element product sensitivity KH =6.87×102 m2/C."

"August 9, 1994, 2:15 in the morning. Experimenter's signature: Su Yuanshan."

…

When Su Yuanshan wrote the last signature, he raised his head and took a moment before his eyes, and then the excitement in his heart quickly subsided.

"Why aren't you as excited as you imagined? Is it because you have no expectations?" Su Yuanshan frowned and stared at the experiment report closely. After a moment of silence, he raised the corner of his mouth and said with a self-deprecating smile: "Sure enough, there is still no pleasure in cheating."

"But I'm not cheating. I'm just cheating when I tear it apart... I designed the experiment from start to finish. Well, I should have no sense of expectation... After all, this thing must be Nobel Prize-level."

Su Yuanshan muttered to himself and began to do the finishing work.

When we walked out of the laboratory, it was already 2:30 in the morning.

Even if you are a night owl, you are all asleep at this time, and the entire Yuanxin Technology Park is silent.

Walking by the lake, a shout suddenly came from the darkness.

"Who's over there? Don't move!"

Immediately, a flashlight beam hit Su Yuanshan's face.

"Mr. Shan?" The flashlight beam quickly moved down.

"Well, I did an experiment to cause trouble for you." Su Yuanshan put down his hand covering his eyes, and after a while of adapting, he recognized the two security guards: "Thank you for your hard work."

"We work the night shift, so it's not hard work, it's Mr. Shan who does the hard work." The security guard said sheepishly: "Then we will continue patrolling."

Su Yuanshan continued to move forward and walked through the peach grove. Before entering the plum garden, he heard a low-pitched quarrel, including a female voice.

And night owls?

Su Yuanshan coughed quickly and walked quickly into the plum forest under the street lights.

Under the streetlight, Li Xiao and Cheng Peng were arguing in a low voice, each holding a report.

"Sister Xiao?"

"Hill?"

"Mr. Shan?"

Seeing the appearance of the two of them, Su Yuanshan couldn't laugh or cry: "What are you two doing up so late at night? Falling in love?"

"Talk about nothing..." Li Xiao walked to Su Yuanshan in two steps: "I have been doing experiments so far, how about you?"

"Uh, me too, I accidentally forgot the time." Su Yuanshan said, looking down at Li Xiao. This girl has been in Yuanxin for a year, except for occasionally meeting up with her car to go back to the Electrical Engineering Department on weekends. , and at other times I almost stay in the laboratory the whole time.

So a good girl looks like a yellow-faced woman every day.

"By the way, how much do you know about batteries?" Li Xiao didn't care what time it was, so he pulled Su Yuanshan and asked.

"I understand Yidiandian, what's wrong?"

"Well, Senior Brother Cheng and I have a little disagreement... Senior Brother Cheng thinks that the cathode material can be more radical. I think lithium iron phosphate is already very good. Once we have the technical advantage, we can quickly launch it on the market. Second Come on, lithium iron phosphate is relatively safer." Li Xiao pulled Su Yuanshan and frowned at Cheng Peng: "There has been an accident over there, Senior Brother Cheng."

Cheng Peng also came over at this time and said with a smile: "Little girl, please stop snitching."

"That's it, Mr. Shan."

Cheng Peng pondered for a few seconds. Now he is much calmer than when he met Su Yuanshan - people who engage in experimental chemistry really can't be impatient. His artistic long hair was also cut short, but his face was covered with stubble.

"Originally, I planned to have a clear division of labor with Li Xiao's two teams. She is responsible for the materials, and I am responsible for the overall architecture technology, so that we can launch new products into the market as early as possible."

Su Yuanshan nodded.

In fact, this was also his idea. After receiving Sony's lithium battery technology last year, Cheng Peng had mastered the entire technology within a few months. In theory, Yuanxin can produce lithium batteries.

But in fact... now lithium batteries, whether it is the production line, brand or raw material pricing, are all in Sony's hands.

This leads to a result. If Yuanxin uses Sony's solution to produce lithium batteries that are compatible with Sony, its competitiveness will definitely be inferior to Sony's - just like Sony gets Yuanxin's solution and only markets it locally and in the west.

So later, Cheng Peng turned to Li Xiao and worked hard to develop safe iron-lithium polymer batteries as soon as possible.

Moreover, both Cheng Peng and Li Xiao believe that once the iron-lithium polymer battery comes into being, it will definitely be the catastrophe of the current nickel-chromium battery.

But after the cooperation, Cheng Peng had new ideas.

As Li Xiao said, he believes that the cathode material can be more radical, such as using ternary compounds.

"We made some attempts and found that if nickel salts, cobalt salts, and manganese salts are used as raw materials to form new compounds as the positive electrode, the reactivity will be greatly increased."

"Of course, increased activity means an increased risk factor." Cheng Peng smiled and said, "However, these can be solved by designing various safety solutions."

Su Yuanshan hummed and looked at Cheng Peng in surprise.

This guy actually thought of ternary materials without prompting himself?