Chapter 267 Materials Science, LV3!

Professor Krell's speculation is not wrong.

When he quickly returned to the laboratory, the sample placed on the field emission scanning electron microscope did not smoke or explode, and everything was fine.

Through the intercepted sets of SEM images, it can be clearly observed that lithium ions are gradually deposited on the electrode protected by the modified PDMS film, just like a layer of beautiful silver tundra.

But this layer of "tundra" did not grow wildly and develop deadly dendrites like other lithium batteries, but lay quietly under the modified PDMS film, gently undulating over time.

Nucleation didn't happen, or it did, but was channeled.

If there is no accident, this state will be maintained until the entire charging process is completed.

There is no doubt that they successfully restored the experiment.

"incredible……"

Standing next to the computer, looking at the images continuously generated by the field emission scanning electron microscope, Professor Krell said three unbelievable words in a row, but still couldn't express the shock in his heart.

Even though the same image has been posted in Nature Chemistry, it is far less intuitive than seeing it in person.

The Columbia TV reporter standing behind him looked confused, not understanding what these researchers were happy about.

Even though he stood here and witnessed the great moment, he couldn't see any mystery in these SEM pictures.

Confused, he spoke.

"professor?"

Professor Krell came back to his senses, and looked at the reporter with a pleasing expression.

"What's up?"

He's in a good mood now, very, very happy.

If the problem of lithium dendrites is solved, his lab will directly benefit. I believe that it won't be long, at most one MRS meeting, and his laboratory will be able to get tens of millions or even hundreds of millions of dollars in investment.

What kind of posture was used by the industry to abandon the lithium battery at the beginning, and what kind of posture must be used to invite it back now.

The reporter swallowed and asked, "How is the situation?"

Professor Krell looked at him with affirmative gaze: "I can now tell you responsibly that it has succeeded."

Perhaps because he felt that what he said was not shocking enough, he paused for a moment and continued.

"Maybe half a year, maybe a year, you will be able to use a smart phone that is on standby for a week. In a few years, you will be able to see a Tesla with a battery life of thousands of kilometers in places other than PPT... Believe me, I Bragging is definitely more reliable than your bragging."

This statement may be exaggerated, but it is definitely not divorced from reality.

At present, lithium-ion batteries are mainly based on graphite negative electrodes. The theoretical specific capacity of graphite is 372mAh/g through the calculation of the product LiC6. If the cost is not considered, this number can be changed to 747mAh/g through graphene technology in the laboratory. .

As for the theoretical specific capacity of lithium?

It is 3860mAh/g.

Although many things cannot be directly applied to addition and subtraction, they can still be intuitively felt from the numbers. These four-digit numbers crush three-digit numbers.

And in terms of cost, lithium metal and polydimethylsiloxane are completely acceptable.

...

[Congratulations to the host for completing the reward task! 】

[The task is completed as follows: Solve the lithium dendrite problem. 】

[Final evaluation of the task: none (no evaluation for the reward task)]

[Task rewards: 70,000 experience in materials science, 10,000 experience in biochemistry, wreckage. 】

In a pure white system space.

Looking at the experience tips protruding from the holographic panel, Lu Zhou couldn't help but smile.

As expected of a technology of advanced civilization, even a small electrode can bring considerable experience.

These experiences certainly won’t cause any splashes in mathematics, but his material science and biochemistry are both LV1, and throwing them in these two subjects directly made him experience the feeling of riding a rocket.

This reward task is probably the most enjoyable one he has done.

"System, open the properties panel!"

With a flash of white light, the data panel quickly appeared in front of Lu Zhou.

【

A. Mathematics: LV5 (54000/300,000)

B. Physics: LV3 (53100/100,000)

C. Biochemistry: LV2 (4000/50,000)

D. Engineering: LV1 (0/10000)

E. Material Science: LV3 (13000/100,000)

F. Energy Science: LV1 (0/10000)

G. Informatics: LV1 (3000/10000)

Points: 2475

】

Materials science has been upgraded two levels in a row, reaching LV3, and now it is at the same level as physics. Biochemistry has also been upgraded to LV2.

However, although Lu Zhou has read a lot of books and documents in this field under the guidance of the system tasks, he is not a full-time researcher in this field after all, and he still does not feel the improvement of that kind of subject thinking ability for the time being.

At least not as intuitive as mathematics made him feel.

Perhaps, this is also related to the fact that the two disciplines do not rely so much on "inspiration".

After closing the properties panel, Lu Zhou looked at the next inventory.

Wreck No. 2 lying in the inventory is a black cube, about the same size as a third-order Rubik's Cube, but from the appearance, it gives people a very confusing feeling.

Unlike the wreckage No. 1, which can be seen as a battery at a glance, Lu Zhou took it out of the inventory for a long time and looked at it for a long time, but he was still at a loss as to what it was used for. .

A toy of a higher civilization?

Not quite.

As for weapons, let alone.

The most fascinating thing is that there are no scratches on the surface of this cube, and Lu Zhou can't even see what went wrong with this thing, so it was judged by the system as "wreckage" and sent to him.

Putting this impenetrable thing aside temporarily, Lu Zhou continued to look at the task bar.

The reward task is done.

Next, you have to do "choice questions".

Hopefully, some interesting missions will come out.

Taking a deep breath, Lu Zhou stretched out his finger and clicked on it.

【

Task 1: Keep improving

Explanation: The technology of lithium anode materials is not only the modified polydimethylsiloxane film, but also the carbon nanomaterial pellets with flat cross-section wrinkles.

Requirements: successfully prepare the product in the laboratory and publish a paper.

Reward: 50,000 material science experience. Integrate 500 points. Lottery chance (85% garbage, 9% samples, 6% blueprints)

】

【

Task 2: Even great jobs require an economic base

Explanation: The laboratory is like a black hole. Before the end of the project, as the project leader, you will never know how much money will be spent. You may be confident in your work, but your partner may not be as confident as you. Instead of being controlled by others, it is better to raise your own funds.

Requirements: Calculate the growth rate of the host's personal assets from the start of the task to the end of the year (December 31, 2016).

Reward: 1-? ? ? Free experience ($1000 = 1 free experience). Integrate 500 points. Lottery chance (80% junk, 10% special, 7% sample, 3% blueprint).

】

【

Task 3: Scientific research is not the task of one person

Explanation: The value of a top scientific researcher lies not only in how much research he has completed, but also in how many talents he has cultivated that are not inferior to him. Although many scholars have passed away, the theories they left behind still influence and change the future.

Requirements: Train at least one student and complete a graduation thesis.

Reward: 1-? ? ? Subject experience (the final experience is evaluated comprehensively by the academic value of the thesis and student participation), with 500 points. Lucky Draw Chance (50% Trash, 30% Sample, 20% Blueprint)

】

Staring at these three tasks, Lu Zhou thought for a long time.

The carbon nanomaterial globules with flat cross-section folds are indeed important, but not decisively important.

For the advanced civilization that produced the "wreckage", those wrinkles are unacceptable flaws, but for any battery manufacturer on earth, this flaw can be ignored.

After all, compared with the modified polydimethylsiloxane film, the latter determines the vitality of the product, while the former only determines the market competitiveness of the product.

The superiority of the lithium anode material itself has completely exploded the graphite anode.

And the most important thing is that those carbon nanospheres with hollow structure, with Lu Zhou's current conditions, even if he knows the molecular structure and the three-dimensional conceptual image, there is no way to copy them.

Combining these two reasons, task 1 can be abandoned.

As for task 3, it is very malleable and sounds attractive, but it is difficult to complete in the short term.

Even for the most promising Vera, even though the group construction method has paved the way for many propositions in additive number theory, the difficulty of Kakutani's conjecture is beyond her ability.

Although Lu Zhou may be able to do it by himself, considering that the subject experience will be calculated according to the student's participation, it is very likely that it is obviously a major conjecture, but the reward experience is not satisfactory.

After some deliberation, Lu Zhou finally chose Mission 2.

It was already the end of August, and it was not long before the end of the year. First of all, the mission cycle would not be too long. The 1000:1 conversion ratio is a bit uncomfortable, but considering the patent authorization, you can still gain a lot of experience.

The only thing that made him curious was what was the 10% [special] in the lottery.

With such a small chance of winning, I don't know if he has a chance to win...