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Full text without ads Chapter 431: Breakthrough in Lithium Battery Cathode Materials

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When Binxin saw Jin Xiaoqiang's calm attitude on WeChat, he felt relieved. Full text without ads.

Then he took Jin Xiaoqiang and walked into the experimental building. The location they were just in was the lobby on the first floor of the experimental building. This is where Binxin WeChat assigns tasks to the employees below every day, or makes briefings and holds summary meetings. They

The real experiments are all inside the building.

Go through the hall and come to a corridor. On the left hand side of the corridor facing the sun is a large sun room. This room is about more than 150 square meters. Through the large glass door at the door, you can see that there are ten people inside.

Several well-dressed experimenters were conducting experiments somewhere, and a group of computers against the wall were constantly recording data.

And they were all gathered in front of several test benches. Some were using droppers to drip liquid into the test tubes, while others were holding several white objects and doing charge and discharge experiments...

"This is our battery cathode research laboratory. Now the experimenters are testing suitable materials. Mr. Jin, you also know that since we determined graphite as the negative electrode of the battery, we have been looking for a suitable material to make the battery.

cathode, but many compounds have been tested so far, but no suitable material has been found."

Binxin Wei and Jin Xiaoqiang stood at the entrance of the laboratory, watching the experimenters inside busy, and then introduced Jin Xiaoqiang.

"What materials did you choose for research?"

Jin Xiaoqiang asked.

"We have used lithium manganate and lithium cobalt oxide successively, but the results are not ideal. The working conditions of lithium manganate are very poor. If you use this material as the battery cathode, the first thing you have to face is high temperature.

The problem of overheating is that this material is not suitable for working under high temperature and overheating conditions. Once the temperature exceeds a certain temperature, it will cause high temperature structural decay and other problems.

, this will cause the capacity of the battery to decay, which will greatly affect the life of the battery. Lithium cobalt oxide, a material, also has its own shortcomings. If this material is used as the positive electrode of the battery, the year-on-year charging capacity will be much lower than that of lithium manganate, and

Once it becomes a charging country, there will be a risk of explosion, and the most important thing is that the element cobalt is highly toxic and is not suitable for the current environmental protection concept..."

Binxin WeChat introduced their research and development progress to Jin Xiaoqiang. Jin Xiaoqiang nodded when he heard this. Lithium manganate and lithium cobalt oxide are indeed the mainstream research directions in the lithium battery industry in recent years.

However, it is indeed because of the difficulties mentioned by Binxin WeChat that it has been difficult to achieve breakthroughs, so the research and development of lithium batteries has been delayed. Full text without advertisements

"By the way, haven't you tried other materials?"

Jin Xiaoqiang asked Binxin WeChat again, but at this time Binxin Wei smiled strangely at Jin Xiaoqiang, and then whispered to Jin Xiaoqiang.

"Mr. Jin, actually we have been trying a new material recently."

"Oh? Let's hear what it says."

"It's lithium iron phosphate."

As soon as Binxin WeChat mentioned this material, Jin Xiaoqiang couldn't help but feel that he was going to look at him with admiration. Didn't this guy have two brushes? This lithium iron phosphate will be the mainstream material for the positive electrode of lithium batteries in the future.

The cathode of the first lithium battery that will be launched next year will use this material.

"Really? How did you discover this material?"

Jin Xiaoqiang came up and asked Binxin WeChat about it. Unexpectedly, Binxin Wei's face turned slightly sluggish at this time. After hesitating for a while, he said to Jin Xiaoqiang.

"Mr. Jin, you have to keep this a secret for me. This material was told to me by a colleague of mine when I was working in the United States. We used to work in the same laboratory. Later, I resigned and returned to China, and he went to Southwest Nano

I continue to engage in research on lithium batteries, and their research happened to have made a certain breakthrough some time ago. I only got the word from him when I was communicating with him online."

Looking at Binxinwei's somewhat embarrassed expression, Jin Xiaoqiang couldn't help but chuckle inwardly. I'm afraid this former colleague of Binxinwei is a woman, right? And maybe her relationship with him is quite unusual. Otherwise, who could keep such a secret?

Tell outsiders what happened?

Haha, I didn’t realize that this Binxin WeChat account could be a beauty trap?

But looking at his expression, it was obvious that he didn't want others to know about it, so he just didn't bother him and just pretended not to know.

"Oh? That's great, haha. Engineer Bin, you must maintain your relationship with him and try to get more things out of him. If he is willing, or if he gets tired of doing it in nano,

Just ask him to come over and help, and I can give him better conditions at any time."

Jin Xiaoqiang smiled and said to Bin Xinwei.

"Well, okay..."

The expression on Bin Xinwei's face turned even more embarrassing.

"By the way, since you have used lithium iron phosphate as the main cathode research object, have you made any breakthroughs?"

Jin Xiaoqiang was very concerned about the guest’s WeChat message.

"Well, not yet. At present, I have arranged a large number of manpower to conduct experiments in this direction and strive to overcome this problem as soon as possible. I heard that nano has achieved certain breakthroughs, which means that this direction is correct.

We must resolutely follow this path. And compared with lithium manganate and lithium cobalt oxide, lithium iron phosphate has too many advantages as the cathode material of the battery. Its cost is higher than that of manganese.

Lithium oxide and lithium cobalt oxide are much lower because there is no need to use large amounts of manganese and cobalt

Such a precious metal element is non-toxic, safer and has a longer lifespan than either of the two materials, so this material is definitely very suitable as the cathode material for lithium batteries."

Binxin WeChat introduced it to Jin Xiaoqiang again.

"Then what is your difficulty?"

Jin Xiaoqiang asked again about the arrival of Bin’s WeChat message.

"In terms of stability, electronic transmission, and low-temperature performance, there is still a lot to be desired."

Binxin said to Jin Xiaoqiang on WeChat.

"Then have you considered slightly adding manganese and cobalt elements to lithium iron hydrochloride?"

Jin Xiaoqiang seemed to have mentioned it very casually, but after Binxinwei heard such a sentence, he immediately fell into a sluggish state.

Seeing the stupid look of the man in front of him, Jin Xiaoqiang felt a little unsure, so he quietly pushed Binxin WeChat.

"Engineer Bin? Engineer Bin?"

"Ah? Ah? Oops, Mr. Jin, you are such a genius. Why didn't we think of such a simple idea? We have done so many experiments before, all in the state and working conditions of lithium iron phosphate.

After all the hard work, I never thought of adding manganese and cobalt elements to it. These two elements are important elements to ensure that lithium batteries work well under low temperature conditions and to enhance passability and electronic vitality! Mr. Jin, no wonder

Others say you are a genius, but I am really convinced..."

Binxinwei felt a little crazy at this time. Indeed, the problem that had been bothering him for several months was finally solved by Jin Xiaoqiang's unintentional words. How could he not be excited?

If you were a less knowledgeable person, you would definitely think that what Jin Xiaoqiang said was amateurish, but it is this amateurish attitude and this very amateurish idea that is exactly the solution to the battery positive electrode problem that still plagues Binxin WeChat.

key.

The reason why people previously chose lithium manganese oxide and lithium cobalt oxide as the research objects of lithium battery cathodes is precisely because they can increase the electron passing capacity and ensure the low-temperature operation of the battery. Although they have many shortcomings, they are so

For many years, people have used them to study them as the best material for lithium battery cathodes, precisely because of their previous advantages.

Later, lithium iron phosphate was chosen because people could not overcome their shortcomings, so they settled on other materials.

However, this new material, lithium iron phosphate, is not omnipotent. Compared with lithium manganate and lithium cobalt oxide, it has obvious advantages but also has its own shortcomings.

In later lithium batteries, a tin of manganese and cobalt were added to lithium iron phosphate to overcome the shortcomings of lithium iron phosphate as the only material.

As a person who has been reborn through time travel, Jin Xiaoqiang certainly knows this very well. Of course, he only knows how people do it. As for how much manganese and cobalt elements are configured in lithium iron phosphate,

He definitely doesn't know.

As for what the weight ratio will be next, it can only be studied by Binxinwei and others, and Jin Xiaoqiang is only responsible for 'technical guidance' this time.

"This is a great idea, Mr. Jin. Now we finally have the cathode material for our lithium battery. We have found both the negative and cathode materials. Our battery may be ready soon."

At this time, Binxinwei could no longer maintain a calm attitude. It would not be an exaggeration to say that he was ecstatic. As a scientist who has been engaged in lithium battery technology research for many years, he was well aware of Jin Xiaoqiang's proposal.

importance.

This proposal will definitely be a big breakthrough in lithium battery research.

"Well, haha, don't be anxious. First, study the formula of adding manganese and cobalt elements to the lithium iron phosphate, and then make the first generation battery. Let's use it first and see, and then continue to the next step.

research.”

Jin Xiaoqiang smiled and said to Binxin WeChat that with such a first-generation lithium battery, his first-generation hybrid is not far away from being born.

"Yes, yes, I will arrange the manpower and start experiments immediately..."

Binxinwei couldn't care less about Jin Xiaoqiang at this time, and he was very reluctant to get into the laboratory to do experiments right away, but how could Jin Xiaoqiang agree? He also had some ideas for battery negative electrodes that he wanted to provide to Binxinwei.

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