In order to upgrade to a bachelor's degree: Master the photolithography machine technology at t

The two exchanged some pleasantries on the phone and then hung up.

Afterwards, Liu Cong drove directly to the outlet laboratory.

Today, his purpose is to seek new breakthroughs.

As usual, Liu Cong first selected the materials he wanted, and then based on the memory of his usual experiments, he then matched the metal proportions he wanted.

Then, all the proportioned metal materials were poured into the electric furnace.

After a long wait, the metal has been completely dissolved in the electric furnace.

After the metal inside cooled, Liu Cong used professional pliers to clamp out the small piece of metal.

Then, he put this small piece of silver-white metal into a special high-pressure instrument to completely crush it into an iron sheet shape.

After special processing by himself, a model was pinched out by Liu Cong.

Liu Cong looked at the work in front of him and nodded with satisfaction.

“I don’t know if I can hold on for long today, but I hope I can make a little more progress than yesterday!”

As usual, Liu Cong compared the finished batteries with ordinary batteries.

This time, an ordinary battery could no longer satisfy Liu Cong. In order to better reflect the difference, Liu Cong combined two fully charged ordinary lithium iron phosphate batteries together.

The graphene battery he made is one piece.

The capacity of ordinary batteries is now twice that of graphene batteries, so that the difference can be reflected.

Liu Cong connected the charged graphene battery to a motor with greater power.

Through Liu Cong's many improvements, the probability of graphene being oxidized has now been greatly reduced.

In other words, the battery life will be higher.

As a control, the two groups started to start the high-power motor at the same time.

After an hour, all the battery power of the ordinary battery pack was consumed, but the graphene battery here was still driving the motor.

This also means that ordinary batteries with twice the battery life cannot match the current graphene batteries.

Moreover, it only takes thirty seconds to fully charge a 5,000 mAh graphene battery.

This is a huge breakthrough. If this kind of battery is installed on a mobile phone, it can ensure that the mobile phone is fully charged in the shortest time.

In other words, from zero to 100%, it takes one pee.

The battery life has been increased by twice as much, which is a huge breakthrough!

Finally, at one hour and thirty-five minutes, the graphene battery was exhausted.

Liu Cong never imagined that a small graphene battery could drive a motor dozens of times larger than his own for more than an hour.

If we really put this into new energy vehicles, wouldn't it take off directly?

At the very least, the range can be more than double that of current new energy vehicles, and it is not affected by hot or cold temperatures.

"It seems that we are not far from success. As long as we improve the battery, we can start mass production!"

Liu Cong looked at the graphene battery in his hand and said to himself.

What he is most worried about now is the issue of raw materials.

Pure metal raw materials are not very expensive, but graphene batteries are different.

Even though the price of prepared graphene has dropped to more than 600 Chinese coins per gram, it is still very expensive.

Because Liu Cong uses more than ten or twenty grams of graphene for each battery.

If graphene batteries are put into new energy vehicles in the future, they will be more expensive.

This is not something that ordinary people can afford.

At the moment, Liu Cong must carry out reforms to force the price of graphene down.

You know, the raw material of graphene is two-dimensional carbon nanomaterials.

The raw materials themselves are not expensive, but the valuable thing is the manufacturing process.

However, Liu Cong does not need to worry about this, because he has a company and sets the price himself.

However, this will definitely destroy the balance of the market, and Liu Cong has nothing to do.

It was almost time to get off work, and Liu Cong didn't want to stay in the laboratory any longer.

After all, he had to go back to play a game training match with his teammate Lian Mai in the evening.

There is only more than a week left before the World Championships, so they must seize the time to train.

…

The next day, Liu Cong returned to his apartment after class in the morning.

There is a very important matter today, and Liu Cong does not plan to go to the classroom in the afternoon.

Liu Cong took a nap at noon and slept until 1:30 in the afternoon.

Seeing that there was only one and a half hours left before the opening ceremony for freshmen at his alma mater, Liu Cong had to take it seriously.

This is the first batch of undergraduate admissions for his alma mater in the thirty years since its establishment.

In other words, starting from this year, the original vocational and technical college was directly upgraded to 211 because of him, and the score increased by two to three hundred points.

Perhaps outsiders don't know the reason for this, but they know better than anyone internally.

Liu Cong put on a formal suit and took good care of his hair.

I took my keys and drove directly to my alma mater, Peking University of Technology.

Half an hour later, Liu Cong came to the familiar Ginkgo Avenue.

It’s still the familiar ginkgo, and it’s still the familiar pig.

This time, it was much more mature than last year. I saw it lying quietly beside the grass on Ginkgo Avenue.

When passing students saw it, they all called it senior.

Liu Cong came to Labula Pig, squatted down and looked at Labula Pig, who was lying down looking at the young lady.

"Hey! Don't you remember me, little one?"

When Labu Lazhu heard Liu Cong's words, he stuck out his tongue and turned to look at Liu Cong.

Then, as if nothing was wrong, he turned to look at the young lady.

No matter how Liu Cong called it, it ignored Liu Cong at all.

"Forget it, forget it! What's the point of arguing with a beast like you?"

Liu Cong stood up and prepared to leave, but Labula Pig seemed dissatisfied with Liu Cong calling it a beast.

He stood up and shouted at Liu Cong.

"What's your name? You're not happy yet, why should I call you senior!"

As soon as he said this, Labula Zhu ran towards Liu Cong with his mouth open.

Seeing this, Liu Cong hurriedly ran forward, with Labu Lazhu following behind.

"Hahaha, you can't outrun me. Who made you so fat? I'm leaving, young master!!"

Liu Cong was wearing a suit and running quickly on Ginkgo Avenue, followed by a dog.

This scene was particularly funny after being seen by the freshmen coming and going.

As he ran, the pig behind him couldn't run anymore.

So he turned around with a curse and went back to sleep.

Seeing that the pig stopped chasing him, Liu Cong walked leisurely on campus alone.

The current campus is more beautiful than the campus a year ago. As expected, the funds have increased as the level has been upgraded, and the hardware facilities are certainly not that bad.

Moreover, the vacant land behind the school that was not mined is now filled with buildings.