"Dong Li, I borrowed some lithium carbonate and cobalt tetroxide from Huaqing Laboratory, and I will return them when we buy them."

Lin Kaihe has been cooperating with Huaqing for a long time, although it has not yet started, but he first contacted Jin Jianmin, the head of the department, and found the custodian of the laboratory materials of the Department of Chemistry, so he lent out two materials.

As for other materials, Qianghua's laboratory itself also has some reserves, so there is no need to borrow them from Huaqing.

After Li Jian arranged all the materials in the order of use, he took out the beaker, poured the polyvinyl alcohol solution into the beaker, and then poured the lithium carbonate into it.

In the same way of operation, the cobalt tetroxide was also poured into the solution, and Li Jian began to add various chemicals to the beaker again, Lin Kaihe did not leave, he sat behind Li Jian, watching him operate the same.

"Dong Li, what experiment are you doing?"

"Battery, I want to use these two materials to make electrodes, and the batteries currently on the market are not very qualified."

Li Jian's hand didn't stop, Lin Kaihe saw the various batteries placed in the corner of Li Jian's desk,

"Isn't there already a lithium battery, but lithium metal is easy to explode, and if you just said that you used lithium metal, I will bring it to you together, why do you have to do experiments to extract it yourself, it is so troublesome and delays the experimental process."

"No, I'm not going to make a lithium metal battery, you know, lithium-ion is more active, it's very suitable for electrodes......"

Li Jian explained while doing his work, Lin Kaihe was not in a hurry to leave at this time, he had seen a lot of Li Jian's genius, and he believed in Li Jian's experiment at this time. It's definitely not a pointless upfront experiment.

It is very likely that Li Jian's operation is an epoch-making milestone.

In the past. Although Li Jian often guides, he rarely does experiments by himself, such as Lin Kaihe, who has achieved several results under the guidance of Li Jian, but in these few studies, Li Jian still only gave the general direction and let Lin Kaihe do it himself. But he didn't help Lin Kaihe do any experiments.

All the data, all the experimental reports, are Lin Kaihe's own summary. Doing it by himself, Li Jian is just guiding from the general direction of the outline.

And now, Li Jian actually started the experiment by himself, Lin Kaihe thinks. This may be a moment to witness history. He didn't want to miss it.

Watching Li Jian keep stirring in the solution, slowly pouring the solution that formed a suspension into the crucible next to him, the crucible was heated, the liquid continued to evaporate, and was sucked away by the fume hood above the crucible, entered the condenser tube next to it, and liquefied into a liquid again, and the solution in the crucible. It was constantly viscous, and even Li Jian's agitation. It's all a little difficult.

Finally, the whole solution formed a gel, Li Jian stopped the flame under the crucible, waited for the gel to cool, and then transferred it to another high-temperature heating furnace, heated at a high temperature of 1,000 degrees, until the gel was heated by the flame into dust.

In terms of metal materials, all kinds of heating and stirring are also necessary, and sometimes it is even necessary to brave the high temperature of two or three thousand degrees to operate, or pick up a sledgehammer to forge the metal materials that have been successfully tested.

Li Jian's pure chemical operation is actually very easy.

For a whole day, Li Jian nested in the laboratory, didn't go anywhere, and Lin Kaihe didn't go back to do his own experiments, just looked at Li Jian, and when Li Jian put the things made from the experiment into a matchbox-sized plastic box, he let out a long breath.

"Hey, Lin Gong, you didn't leave, you watched here for a day?"

Getting Lin Kaihe's reply, Li Jian smiled lightly, there was no way, although he knew that everything was in accordance with this step, and even some steps he had optimized according to the knowledge he had mastered.

But experimentation is a focused work, and he returns to a state where he is unheard of by other things around him as soon as he enters the experimental state.

For example, Lin Kaihe stood behind him for a day, and he didn't even pay attention.

"Okay, you're here, then I don't have to test it myself."

Handing the matchbox in his hand to Lin Kaihe, Li Jianyi sat on the chair.

The black plastic box, which is no more than ten centimeters long, no more than six centimeters wide, and no more than three centimeters thick, has two wires sticking out at the top, one red and one blue, which are the farthest away from each other.

Lin Kaihe picked up the multimeter not far away and began to measure the voltage of the battery, 3 volts.

"What's your target voltage?"

Lin Kaihe asked, Li Jian waved his hand,

"Where is the target voltage, I mainly see if it can be made successfully, as long as the voltage range is between three and five."

Li Jian did not expect to make a standard lithium-ion battery at one time, and the lithium cobalt oxide powder he made was not necessarily qualified, and the specific quantity was not easy to determine, so it was a bit whimsical to control how many volts the voltage and how many milliampere-hours the battery capacity to.

Three volts, within his estimates.

Lin Kaihe didn't stop, and continued to do the work of testing, everything seemed to be perfect, especially for a test subject who had just completed.

"I'm going to measure the total discharge, are we going to mass produce this kind of battery? If it is as non-rechargeable as a lithium metal battery, and the cost is so expensive, I am afraid that it will not have much advantage with nickel-cadmium and nickel-metal hydride. ”

"You just say it, it's not that there is no advantage, it's that there is no way to compete, except for some cutting-edge requirements, but your consideration is right, this is a rechargeable battery, you don't need to measure the total power, you go to discharge, and then find a charger for AC to DC, see how the charging effect."

Li Jian doesn't want to move at all, the advantage of concentrating all his energy on one thing is that the work efficiency is very high, but there are also disadvantages, that is, when the mental tension is over, the body will be very tired, for example, he doesn't even want to move now.

Lin Kaihe understands Li Jian very well, and he often has this feeling, but he did not directly use the wire to link the positive and negative poles of the battery, which will cause the electrodes to be overdischarged, which is a drastic damage to any battery.

looked at the laboratory, there was no suitable thing for discharging the battery, so he went out, and when he finished discharging, he found an AC-to-DC transformer and returned to the laboratory, seeing that Li Jian had fallen asleep on the chair.

Lin Kaihe left a note on the table, telling Li Jian that he would take the battery away to charge it, then closed the door and turned to leave.

At the same time, I sighed deeply in my heart, Li Jian is too desperate, from knowing Li Jian to now, it seems that he has never stopped, such a person, if he is not successful, who can succeed.

Lin Kaihe still remembers that when he arrived in Chunjiang, he saw dilapidated factory buildings, barren courtyard walls, construction sites where even the foundation had not been dug, and dozens of busy workers.

At that time, although Li Jian drew such a beautiful blueprint for him, he still couldn't believe it, he just thought that Li Jian was a child who was happy and liked to brag.

But in less than a year, seeing that everything Li Jian said was slowly being realized, the original dilapidated factory building has been renewed.

Buildings have been erected in the originally barren factory area, and Li Jian's promise to assign a house to outsiders has long been realized.

Qianghua Technology is not only in the small county town of Chunjiang, but also in the south coast of the motherland's reform and opening up, Zhenshen City, also opened a factory.

All of this is the miracle depicted by this nineteen-year-old boy in the laboratory in one year, relying on his fighting spirit.

Back to his laboratory, he connected the electrodes on the battery with the corresponding electrodes on the charger, found two multimeters, measured the voltage and current, and then stared at the pointer of the multimeter, held a pen in his hand, and saw that the value had changed, so he recorded it in his notebook.

That's first-hand about the experimental phase.

It's just that he didn't record it for long, Li Jian had already looked for it, and it turned out that Li Jian, who was asleep, was woken up by a call from Tang Yang, and when he saw Lin Kai's note, he came over.

"The charging speed is very slow, with a current of 0.5 ampere, and a voltage of 5 volts, it takes about seven or eight hours to fully charge."

When Lin Kaihe saw Li Jian, he first told Li Jian about the data he currently had.

Li Jian nodded, the conversion rate of electric energy was not as high as expected, I remember the era of the popularization of mobile phones, it took more than half a day to charge the mobile phone, not to mention that he had just started.

"Put it here and recharge, see who's there, let them record it, we're going to eat, we're starving, and there's good news for you later."

Li Jian stroked his stomach, his already hungry and shriveled stomach was more than the first time to protest.

Lin Kaihe nodded, walked out of the laboratory, and called his apprentice Li Yuelong, who was with him to Qianghua at that time, in, and asked Li Yuelong to record the changes in current and voltage, and he and Li Jian walked out of the laboratory.

"Dong Li, what's the good news? We're going to have a new product again?"

As soon as he went out of the door, Lin Kaihe couldn't hold back his curiosity, seeing that Li Jian had created too many business miracles, he was a little unsure how many miracles Li Jian could create.

"There is a large order, COMPOQ and HPH have determined their optical drive order plan after seeing our samples, and the current products of the fast factory have been sold out, and they will continue to rush to strive for 20,000 units before April, when the new products of their two companies are launched."

Li Jian didn't expect that receiving a call from Tang Yang turned out to be this good news, but in addition to the time of shipping, there are less than two months, can the fast factory complete so much output. (To be continued......)

PS: Apologies again, Kavin in the last few days, and the time is uncertain when working, so the update is a little unstable, but don't worry, no matter how late the drunk horse is, he will insist on the next day's manuscript code out at night, but the release time is uncertain, please forgive me.