Chemistry

The front door of the seminar room opened and ESS research team members from Hanjeon stepped in.

Jungwoo pulled out his laptop from the bag next to him and placed it in front of him. While the power was on, the conductor went up to the top.

“Let the meeting begin. Everyone, please take your seats. ”

The seminar room has been silenced.

One of the employees manipulated the beam projector into the boat's eyes. What appeared on top of the single phase was a photograph of the problem of the energy storage facility that was on fire.

“It was a full moon ago. There was a fire in the power storage, and we initially thought that overheated circuitry was a problem. However, the precision check indicated that the circuit was in normal operation, and that the other containers were overheated and had to stop all test operation schedules. ”

The screen switched to reveal the plains of Hokkaido, which are full of ESS equipment. Dozens of container-like power storage buildings. The boat conductor pointed to it with his fingertips.

“Look at the temperature increase width of the graph. If we kept going, all those buildings would be burned down. ”

The conductor slowly looked at the team members of the two companies sitting side-by-side against the central table.

“If we don't solve this problem perfectly, South Korea's renewable energy business will be severely discouraged. For your own benefit or for the future, please show your appreciation for having the best research resources in your country. ”

One of the employees whispered to the boat conductor who finished the overview description. The conductor nodded, looking at Jungwoo and Jung Na in the middle.

“You've submitted your data in advance from the Hansung SDI. The content is bigger than we prepared, so I'd like to start the discussion with this. Captain Lim Wu, are you sure you want to do this? ”

Jungwoo nodded because he already knew. However, the team members of KG Chemistry did not have a good eye for competitors.

In the phase, PT data came to mind. With the title [ultra-high capacity capacitor], the cover with the name 'Electronic Material Team Yoon Chul’ appeared on the first screen.

“What can you tell me about this material? ”

Yoon Chul woke up as if he was waiting for the voice of the conductor. After receiving a wireless fin microphone from an employee, Yoon Chul lowered his head briefly to Jeong Inna and said.

“This data is based on an analysis of the longevity of lithium phosphate and the stability of polyanions. ”

Jungwoo turned his head to the side after watching the Yoon Chul announce what he had just seen. Jung Ina was looking for the right document and reading it in time for the announcement. The ten minutes of education that I had suppressed the stuffiness before was working.

Why am I so pleased? Is this really worth teaching? ’

Jung Ina handed over the document simultaneously as the PT screen crossed over and met Jungwoo's eyes. And she smiled, and she said, "You seem like a very good person to attend that meeting, don't you? 'I sent a look and Jung cleared his throat briefly.

The conductor, who carefully watched the announcement, asked.

“It's a capacitor problem. Is there a solution? ”

In this question, Yoon-chul saw Jung. I pressed the microphone button to find the underlined part immediately.

“As a new anodic component to cope with the reactivity of polyanions, we propose a patented polygammaglutamic acid-chitosan complex of our limited solubility SDI. We can increase stability through ionic assembly. ”

“Oh, there is such a thing? ”

I looked at the data with the eyes that the conductor was very interested.

In that way, Yoon Chul gave Jungina an impression of "Good job." However, Jungina's gaze was fixed on Jungwoo.

“I did the right thing, right? ”

“That's right."

“Heh.”

The following materials are on the screen.

[Max Load Reduction Problem] The name of the team member 'Stiffness Tree’ was greatly emphasized as before.

“This material is · · · · · · · · ·. ”

“I'll tell you more. ”

Stiff-necked hand over Pin Mike.

“A big drawback to solar power is the irregularity of power generation. Figure 1 is the solar power generation curve reported by previous ESS devices, and as you can see, the power fluctuations in the time of the fire are very large. Accordingly. ”

As the presentation continued, members of the KG Chemistry team were astonished.

- What are they? How much have you got?

I see you've been sent to Hokkaido yourself.

- You decided.

The ship's conductor and Hanjeon staff also continued to look carefully at the screen as they came up with deep analysis data.

“Looking for ways to reduce the risk of · · ignition and explosion, we have reached the conclusion that BMS needs to be modified for power production stabilization. Mr. Chung.”

I looked carefully at the document, and I looked up to the call of stiff-necked.

“Yes?”

“Can you tell us what you said last time about the component of the cell to maintain stability? ”

Jungwoo couldn't help but admire the presentation of the stiff neck that made the situation where all he had to do was put a spoon on the board.

As long as they read the exact underlined part of the document that Jungina was holding, everyone could give an acceptable opinion.

‘There's no other way. If I interrupt this, it will only interfere with the role of the team leader or the settings of the ball. ’

However, Jungwoo's thought deepened because the risk of the test failing largely without modifying those opinions. However, Jung Inna's actions suddenly blew that concern away.

She turned her head to Jungwoo rather than just reading the document. She asked without pressing the microphone button.

“This is the proposal to attach a small key to every visit of the battery cell, right? ”

She recalled the parable she had given earlier, and she was stuttering with her memory.

“BMS with breakers per compartment in case of abnormal conditions. Battery Management System. ”

“That's right."

Meanwhile, the English pronunciation was not less than mainland.

Jungwoo looked at Kang Sungwook and Jeong Ina alternately, then firmly resolved and quickly typed into the laptop document window.

[In addition to the contents of the document, can you read them exactly as they are written here?]

Jungina nods. Then I pressed the microphone button.

“Yes, Representative. The increased risk of explosion in unusual situations of lithium ions is also responsible for almost all battery related issues. However · · ·”

When she saw the flowing laptop, she was quite gentle with her opinions.

“Solar energy is not as reactive as fossil fuels. This BMS won't stop the overcharge, but it won't stop the overdischarge. ”

“Overdischarge?”

When Jung Ina said something that wasn't in the document, she became a curious face. He pondered and asked.

“However, modification of the system is unavoidable to address issues that may cause a load inside the battery. ”

“Fix it, but let's solve the problem of under-efficiency, not over-discharge it. ”

“If the power generation efficiency is · · · · · · · · · ·. ”

“Did you know that even if the temperature inside the lithium cell is reduced by one degree, the efficiency increases by 1.3 percent per hour? ”

“You can't know that. ”

“I don't know if anyone knows that, but I don't know why you're not considering the possibility of temperature rising, power efficiency dropping, causing another overheating problem. Especially, when you apply the new anode component that you proposed, the temperature rises by 3.7 degrees. And boom, boom. ”

Jungwoo didn't use the word ‘bang’, but she laughed nonsense when she saw that Jungina put the date bird effectively for the presentation.

"This woman, she reads and watches in real time, she changes her words appropriately, right? ’

It was almost an announcement-level ability.

Immediately after reading the comment, Jung Ina was a little embarrassed to just look at her with her face mesmerized, as well as her stiffness. Jungwoo gestures at the laptop.

[Don't be surprised. Keep reading.]

“I'm not saying that Representative Kang has a solution. to think of a balanced solution. ”

Jungwoo quickly analyzed and mixed two presentations in his head during the typing.

“You mean the solution? ”

“Before applying a patent, why not insert an additional compound into the blocking device that prevents over discharge? Iron manganese. ”

“It · · · huh? You're trying to balance iron oxide based nanoparticles. Huh, that should do it. ”

[nodding and agreeing with Deputy Kang.]

Jungina nods slightly.

The solution to overcharging, overcharging, and overheating. He was impressed with the chemical answers that combine the two options in a subtle way, even though his report was frontally dishonest.

“I understand, and I apologize for your misunderstanding. ”

The conductor looked at his chin and convinced him to open his mouth.

“Of course. It's worth testing without safety verification. ”

Jung Mina takes her hand off the microphone and turns her eyes to Jungwoo.

“What did I just do? ”

“What I need to do as a team leader. ”

Jung Mina couldn't take her eyes off Jungwoo, who replied unexplainably.

The new PT is up.

Following Shim Su-hoon's report on [overcoming phosphate], Seowon's [replacing silicon alloys] and Ji Jin-seok's [lightening treatment] were published.

Before the next announcement, Jungwoo tapped the back of her hand, focusing on the document, thinking it was ripe.

[This is also what the team leader should do.]

“Now?”

[Yes.]

Jungina opens the microphone.

“Dear Agent, If we overload the lightening process to improve the cathode, won't the conductivity decrease? I don't think you're considering the fact that electrode-electrolyte interfacial membranes are stacking up more. ”

Jung Jina said, with a little bit of Tum.

“Representative Park. in the process of processing for silicon alloys. Now, the downside of reacting with lithium is that it deforms electrodes and causes failure, right? ”

Lee Jin-seok and Park Seo-won stopped and saw Jeong Ina.

“You don't have to answer that. It's just a small problem. Master Shim.”

On this call, I flinched and turned my eyes to Jeong Yina.

“What happens if bipolar adjustment measures to overcome phosphate overlap the disadvantages of these two challenges? ”

“That's · · · · · · · · · · · ·. ”

The excess power accumulated on the interface membrane gathered into the broken electrode, and his imaginary eyes swelled up as he mixed it with the active material that would accelerate the reaction.

Jeongyeon said without rest.

“There will be an explosion that can't be compared to the one that happened in the test drive before. We're not bomb makers. ”

The three of them suddenly became petty after receiving a fatal point. The boat manager also examined the data again according to Jungeena.

- What's the captain over there? He's just going after his team.

The members of the KG Chemistry team had an interesting view of the situation.

- Yeah, but I'm not kidding. You look so young.

- Well, so is our team leader. Don't you remember the weekly meeting? Nine lead researchers panicked.

Jung Ina watched the contents of Jungwoo's laptop and continued to comment.

“It's not that there are no answers. I think silicone nanowires can reduce the size until the physical deformation doesn't matter. ”

“Wait a minute, Mr. Jung. Are you talking about adding a process that adds processing to the nanoscale? ”

From the moment I looked at Jungwoo's condition, I was curious about the question of the conductor of the ship who was searching for data. Reflexively, you shake your head up and down in the jaw of a friend named Nod.

“Yes, that's what I mean. ”

The boat conductor discusses in a small voice with the staff and nods.

“It will be difficult to prepare, but I think it will be enough to reflect on the test. I have to consider this. ”

The PT screen did not rest, moving on to the next.

Did you write one report for each one of them?

Following the mourning of KG Chemistry team members, a total of four announcements lasted for more than ten minutes. This time I wanted to move on quietly. Jungina opens the microphone.

“Chief Kim. ”

“Yes, sir. ”

“The battery is essentially a device that stores charge, but it's not compatible with high current. Using 2.05 degrees of metal for auxiliary storage is risky. ”

“But, sir, ”

“Let's mix magnesium into the antimony. ”

“Yes?”

“Magnesium is a pretty good electron donor. Combine this, and the antimony will be overwhelmed and become a cohesive electron receptor. ”

“How do you find the cost of that composition right now · ·”

“We have to do something now. if you don't want to turn the field into an electric oven. If you can't, you'll have to destroy the offer itself. ”

“I'll find the car. ”

Chief Kim answered in a daze, looking at Jung Mina with the embarrassed look of 'This can't be my team leader.'

After completing the comment, Jung Jina closed the microphone and looked at Jung Woo. She said without a thought because she didn't think to leave her dazzling gaze even after the start of the next PT.

“Well done. Don't be the first person on the team. ”

I asked with a serious face.

“What kind of magic are you casting? ”

“I just solved the chemistry problem. ”

“I don't know what this area is, but I know that every time I speak up, my team member's reaction is unusual. I also know that Chief Lim Wu's level of support is unusual. ”

“Does it matter? Let's study concurrency and conciliation. ”

“I didn't give you any help. ”

It helps to avoid any interruptions during your test. Jungwoo wanted to tell me, but he dared to smile.

“Is this the last data from the Limited SDI? ”

A man holding a fin microphone nods at the question of the conductor.

“This report is based on the fundamental solution to the battery problem. ”

Jungwoo recognized that the content was one of many documents piled up in front of Jungina, and he focused his mind.

“You'll agree that the lithium ion cell has the best efficiency and performance of any existing battery. But I think this cell, which is also the source of the outage, should be replaced with a lithium sulfide cell that's safer. ”

It was a radical offer, and people's gazes converged toward the noble mind.

- Yeah?

- Do you know him?

One of the members of the KG Chemistry team continued to pay a resilient compliment while looking at the merits.

- I read a lot of his papers when I was working on the electric car team. I'm from Oxford, and his battery paper has been approved by the British Chemical Society.

- Whoa, is that it?

Ko Sang-gun continued his presentation with a confident eye.

“It is lighter than a traditional cell and has the advantage of storing more electricity. ”

“We had considered lithium sulfide at the beginning of the ESS business, but we gave up on the disadvantage of short life and irregular ion dispersion of battery electrodes. ”

In response, Ko Sang-gun handed over to the next PT screen.

“Protecting electrodes with PVP polymer material significantly increases lifespan. He has already published a paper in the K Culture Science Journal and is proud to announce that no company is more technologically qualified than the Korean SDI in this area. ”

After more than 500 discharges, the appearance of the young conductor turned into a liking, showing that the experiment results were even less degraded than the lithium ion cell.

Jung Mina turned her eyes to Jungwoo as she had a conversation that she had no idea about. In this presentation, I looked at him with the question, "What can I say as a team leader?"

‘Mmm · · · · · · · · · ·. ’

As soon as Jung finished understanding the contents, he had to swallow his groaning.

I was a very good alternative myself. However, the story is completely different if it is mixed with the traditional method that was integrated during the meeting.

Strongly incompatible opinion.

Jungwoo told me when he got on his laptop quickly.

[If you want to choose a representative's opinion, you should cancel all existing comments. I can't tell you what's better chemically. What would you do?]

Jungina, who covered her mouth with documents, said.

“Many opinions matter more than one person. ”

[Then say:]

When Jungina puts the microphone to her mouth, Goethan stops speaking and looks at her.

“Representative Go. ”

“Yes, sir, do you have any thoughts? ”

“There's no question that polyvinylpyrrolidone prevents lithium sulfide loss and increases cell life. But as soon as you choose this solution, all the other team members' suggestions get screwed up. ”

“Whatever it is, isn't it your privilege to choose a better method? even if it's just me. ”

In a selfish remark, the men around him snorted.

Jungwoo went through the PT data again. The report itself was certainly flawless. You wouldn't have anticipated a potential collision if you had the ability to propose this much. Though he was the best of them, he seemed to be one of the most viper researchers.

“Chung or Team Leader, The stability of lithium sulfide is a direct problem with the success of this project. Please reconsider your performance. ”

Jeonguina was embarrassed by the rigorous attitude of the higher order. She said, "What do I do? ’As I looked at her with my eyes, Jung was struck by the thought. Incorporating an opinion into another opinion was not possible without ignoring the laws of chemistry.

‘Looks like we should leave this choice to her. ’

Jungwoo's gaze remained on the document that said, "The spleen card that will flatten the nose of the Hansung SDI," he brought today. There is a way to integrate even if you don't ignore the laws of chemistry.

I tried to stop him, but I made fun of my finger on the laptop.

[· · · There is a better way to do that than lithium sulfide.]

“In that sense, there's an alternative that's even better than the stability and scalability of lithium sulfide. ”

“No way.”

“How about a new nanothin film that acts as both a lithium-ion battery and a supercapacitor at the same time? ”

“What? ”

“A three-dimensional electrode thin film using iron oxides coated with a 'carbon-oriented’ tantalum oxide. What do you think, Representative Go? ”

“A thin film with nanotubes. It's only in the early stages of research. ”

“So it's impossible? ”

“If you study it deeply, you can. ”

“Look, whatever it is, it's better. If you think about achievement, you have to study this. not just lithium sulfide batteries that have become a commonplace technology. ”

My lips flutter with gloom as I speak.

The members of the KG Chemical team were dumbfounded by the immersion of Jeong Inna, who had immersed an authority who had published many great papers in the field of batteries.

The SDI team looked at Jeongyena wonderfully, rather than getting angry at the results of all the ambitious reports. After posting the report to read the part of the index, it was beyond the perfect interpretation and recreated the ESS batteries unique to the Hansung SDI.

“· · · More than. ”

The discussion of the materials prepared by the SDI of Hansung was automatically terminated as soon as the announcement came to a halt.

“Oh dear, time has already come. ”

The voice of the boat conductor rang into the quiet seminar room.

“We have lunch at the restaurant, so you should start with the meal. We will discuss further in the N1 experimental area where the generator and the actual battery sample are located. ”

The meeting that took place for an hour and a half ended.

“Phew.”

At this moment, when Jeongyena had finished the meeting safely, a sigh of relief came out. She looked at the savior with an impressive look that allowed her to successfully participate in these meetings.

“Really Thank You · ·”

“Sir!"

Her team flocks to her side and buries her voice even before she finishes her greeting. The mercenary dodges his teammates and gets pushed aside by chaos.

“By the way, how did you edit our report today? ”

“When I was talking about manganese iron oxide, I was horrified. ”

“If you knew this much, you should have discussed it from the beginning. ”

During the meeting, words praising the chemical theory came from all over.

I turned my eyes to the savior who was clearing out the pile of reports more quietly.

“Quiet, everyone. ”

The surroundings that were buzzing with her demands were quiet.

“You don't have to make a fuss. All the opinions I gave during the meeting were with the help of KG chemistry. ”

“Yes?”

Bomb Declaration.

“That was all KG chemistry? ”

“No, that's ridiculous. ”

In Jungina's words, even the members of the KG Chemistry team looked at her with a face that they didn't know what was going on.

“Captain Lim Wu. ”

Jungwoo, the silver man, who had put his bag on his shoulder and just stepped back, stopped at Jung Yina's call.

“Now I know why you gave me your opinion. A warning that our technology alone has a high probability of failure. Right?”

“Oh, that's... ”

Jungwoo could not find a word to answer Jungina's question that clearly understood her purpose. Even though he thought carefully by looking at the text on the screen, it was just a chemical literacy, and it was never stupid.

‘I never thought I'd find out. ’

I was wondering if there was a conflict between the businesses due to the fact that I interfered, but Jung Ina said something even more shocking.

“Listen to the members of the Korean SDI team. To ensure the project goes smoothly, follow Captain Limit Woo's instructions after this time. ”

“Mr. Jung · · · · · · · · · · ·. ”

“What the hell. ”

While everyone was astonished, Ko Sang-gun, who was standing at a distance, looked at KG Chemistry's team leader with sharp eyes.

Throughout the meeting, I was somewhat aware of the friendly conversation with Jeong Yi. A skilled enough person to suggest a nanothin film. In this project, a surprise ambush appeared, even though the only person who could gain Jeong Inna's trust was himself.

In Q1 and Q2, he designed the batteries for Han Sung Electronics' mobile phones. How dare you challenge me?

“Limited rains? This is war. ”

< 20. End of Battery War (4) >