Otaku Engineer in Great Tang Dynasty

Remember in one second [End of the God Station] Mobile phone user input address: m.xinwanben.com

Besides, there are electric lights in the workshop now, and working at night is almost the same as during the day?

Hearing this, Li Zexuan stumbled and almost fell to the ground. He thought, "Dare you, I invented the electric light so that you can stay up all night to work, right?" When you say that, I'm a bit like that kind of black-hearted capitalist~!

"Mr. Wang, you always listen to my advice. Staying up all night hurts your body. Don't stay up late! Whether it's vanadium ore refining or sulfuric acid production, you don't have to be in a hurry. You don't have to work so hard. The body is the biggest loss to the academy~!"

Li Zexuan looked at Wang Ji and persuaded bitterly.

Wang Ji's face was puzzled: "Master, it's not that this old man likes to stay up all night, but that this old man feels a little itchy when he sees those good materials, if he can't refine these good materials into the desired items, he will feel uncomfortable This is an old problem that can't be changed! But don't worry, the old man's body is definitely fine, I know it~!"

Li Zexuan was speechless for a moment. Thinking of his previous evaluation of Wang Ji, the obsessed alchemist, this evaluation is very appropriate. This old man used to love alchemy, and he made some stupid things in the eyes of others. Now that I have entered the chemistry department of the academy, I have completely found the "organization", because the way of material transformation in "Chemistry" itself is similar to alchemy. Wang Ji is in it, and it is not difficult to understand !

Regarding this "madman", Li Zexuan knew that no matter how he tried to persuade him, he would not be able to persuade him. He sighed and stopped persuading him. He walked to the carriage and said to Han Yu who was inside, "Miss, worker. There are some things over there, my husband won't go back to the county today, I'll ask Liu Feng and the others to escort you back~!"

Han Yuxi lifted the curtain of the car, came out from inside, and said softly, "Since Xianggong has something to do, let's go! The concubine will stay in the Yunshan Courtyard for two days to take care of Xianggong's food and daily life~!"

Li Zexuan thought for a while, nodded and said, "That's fine! I'll send someone back to the county town to tell my parents, lady, go back to another courtyard~!"

"Hmm~!"

……………………

Let Liu Feng take Han Yuxi back to Yunshan Courtyard with his guards, and Li Zexuan followed Wang Ji to the steelmaking plant of the workshop.

"Look, Chief, this is the refined vanadium!"

Inside the steel mill, Wang Ji pointed to a sack and said to Li Zexuan.

Li Zexuan walked over to take a look, and saw small light gray stones lying quietly inside. Compared with the vanadium ore just mined, the refined vanadium blocks are undoubtedly more delicate in color!

"This is the only element of vanadium in the whole world! This thing is very useful, not only for the production of sulfuric acid, Mr. Wang, you have to keep it safe!"

Li Zexuan picked up two pieces of vanadium, put them in his hands, and said to Wang Ji.

"Don't worry, even if you don't tell me, the old man will take good care of it~!"

Wang Ji nodded in response, and then said: "Shan Chang, sulfuric acid is stored in steel tanks in the warehouse, but for convenience, this old man put some in a glass bottle. Master Shan, come and see if the purity is sufficient?"

"Hmm~!"

Li Zexuan nodded and followed Wang Ji to a small laboratory next to him. Wang Ji put on thick rubber gloves, took a bottle of transparent liquid from the shelf, and handed it to Li Zexuan.

Li Zexuan took it and shook it slightly. Seeing that the liquid inside was not as agile as water, but rather viscous, he nodded secretly, because the high concentration of sulfuric acid was indeed a viscous liquid.

"Have you roughly estimated the concentration of this sulfuric acid?"

Li Zexuan turned to look at Wang Ji and asked.

Wang Ji nodded and said, "According to the input and output ratio of each raw material, as well as the total amount of water added, if the leakage loss of sulfur dioxide during the production process is ignored, the theoretical concentration of sulfuric acid is about 97%, but Taking into account various errors in actual production, the actual concentration of sulfuric acid should be around 90%~!"

"Ninety percent? It's almost enough for our workshop in the future!"

Li Zexuan smiled happily and said.

Then he opened the bottle cap, dipped a few drops of concentrated sulfuric acid with a glass rod, and dropped them on a piece of rice paper on the table. When the sulfuric acid fell, the paper quickly turned black, and there was a smell of burning paper in the air. This is due to the strong dehydration of concentrated sulfuric acid, which leads to carbonization of paper! Seeing this, Li Zexuan couldn't help but sigh:

"Very good! Now our workshop can finally produce sulfuric acid in batches! This is the cornerstone of Datang's chemical industry's take-off~!"

Industrial triacids - nitric acid, sulfuric acid, and hydrochloric acid. At present, the workshop can produce sulfuric acid on a large scale, and hydrochloric acid can also be produced (electrolyzed salt water produces sodium hydroxide, hydrogen, and chlorine gas, and hydrogen is burned in chlorine gas to generate hydrochloric acid. ), the only thing left is nitric acid!

The production of nitric acid is relatively complicated. The nitric acid industry is closely related to the synthetic ammonia industry. The catalyst used in it is not currently available in the workshop, so this can only be left to the future!

"Mr. Wang, I will take some sulfuric acid in a while to make a battery, a battery that lasts longer than the previous voltaic battery! On the steelmaking side, I hope that Mr. Wang can use the vanadium that has been refined to refine it. Make vanadium steel!"

After a while, Li Zexuan asked.

"Vanadium steel? Could it be that Shanchang wants to add vanadium and carbon into molten iron to make a new type of steel?"

Wang Ji's eyes lit up. Today was the first time he heard Li Zexuan say that vanadium should be used to make steel.

Li Zexuan Dian

Nodding his head, he said, "Yes, that's roughly what it means! As for the proportion of raw materials, I will give you a few references later! This steel is doped with vanadium. It enhances hardenability and carbides, and can withstand high temperatures, has a strong secondary hardening effect, and has a significant effect on improving hardness, which can be increased by more than three times. Moreover, vanadium can refine steel grains and stabilize the structure, which is more suitable for Forging and polishing is simply a godsend for making weapons and armor!"

"More than three times the hardness?"

Hearing Li Zexuan's words, Wang Ji's eyes widened in surprise, but he quickly realized that something was wrong, he swallowed quickly, and said, "Gudong...what? Captain, you want to use vanadium steel to make weapons and armors. This...this is absolutely impossible! If you are noticed, Your Majesty will not tolerate you!"

This old guy thought that Li Zexuan was swollen, and he was going to build weapons and armor to gather troops to rebel, and he almost lost his soul!

However, his first reaction was to persuade Li Zexuan to "put down the butcher's knife" instead of clamoring to report and expose, which shows that he really cares about Li Zexuan!

Li Zexuan knew that Wang Ji had misunderstood, so he quickly said: "What did Mr. Wang say? I do intend to make weapons and armors, but this is what Your Majesty ordered from me. As for His Majesty's plan to use this batch of vanadium steel to make I can't tell you in detail what the weapons and armor of my lord do! Haha! Don't worry, I'm not enough of Xiaoyao Marquis and Xiaoyao Mountain Chief? How can I not want to rebel! I'm very satisfied with my current life!"

Hearing this, Wang Ji breathed a sigh of relief. He wiped the sweat from his forehead and said, "That's good! That's good! The old man was really frightened just now! Since it was ordered by the sage, the old man naturally has no opinion. After you give me the ratio formula, I will go to trial production of vanadium steel~!"

"Okay~! Then there is Mr. Lao Wang!"

After Li Zexuan and Wang Ji explained several optional ratios of vanadium, carbon and iron in vanadium steel, they removed a can of concentrated sulfuric acid and left the steelmaking plant!

After leaving the steel mill, I came to the office building in the front yard of the workshop. There is a laboratory in it that is exclusively for Li Zexuan.

Going all the way, Li Zexuan came to his laboratory after rejecting the kindness of a few servants who wanted to help carry the steel cans.

Putting the steel tank containing sulfuric acid in the corner, Li Zexuan stood before the desk and began to draw drawings.

What he drew is the shell structure of the lead-acid battery!

The negative plate, the positive plate and the electrolyte are the main constituent materials of the lead-acid battery flow reaction, the anode plate is lead dioxide, and the cathode plate is lead. When the battery is discharged, the negative plate interacts with the electrolyte to turn into lead sulfate and water, releasing electrical energy; when the battery is charged, under the action of external electrical energy, the lead sulfate and the acid in the water form velvety lead and sulfuric acid, which convert the electrical energy into store it up.

In this way, a complete charge-discharge cycle can be formed!

Compared with the lithium battery that is often used in modern times, although the specific energy of the lead battery is small (that is, the energy stored per unit weight is less, mainly because the volume and weight of the lead battery are generally relatively large), the electromotive force of the lead battery is relatively stable when it is discharged, and the working voltage is stable. It is stable, has a wide range of operating temperature and operating current, can be charged and discharged for hundreds of cycles, has good storage performance (especially suitable for dry charge storage), and is low in cost, so it is widely used in the electric vehicle industry.

Of course, the most important thing is that it is not easy to produce lead-acid batteries under the current conditions of the Trolley Pavilion. As for higher-grade lithium batteries, we should wait a little longer~!

In addition, the battery electrode materials lead and lead dioxide, these two things have already existed in this era!

Lead is one of the earliest metals used by humans, and humans have been smelting lead from ore in 3000 BC. The content of lead in the earth's crust is 0.0016%, and the main ore is galena.

And the history of using lead in ancient China is quite long!

The "hu powder" used by ancient women to whiten their skin is the oxide of lead, and copper mirrors used in daily use also have lead; in ancient bronzes, lead is one of the three main components; copper coins also contain a lot of lead, which is a The largest amount of lead used in ancient times, the more devalued the currency, the more lead it contains; for ancient alchemists, lead also had another use, that is, alchemy. It is toxic, so since ancient times, none of the emperors who favored alchemists and took "elixir" lived long!

With lead and sulfuric acid, and then designing the shell structure, you can basically manufacture lead-acid batteries!

In his previous life, Li Zexuan had dismantled used lead-acid batteries, and he was quite busy with understanding its internal structure!

After about a quarter of an hour, Li Zexuan drew the drawings and walked out of the laboratory.

"Bo Fu, let someone follow this blueprint and use hard rubber to make a shell like this! I need it urgently~!"

Coming to Uncle Fu's "office", Li Zexuan handed the drawing to Uncle Fu and said.

The so-called hard rubber is rubber with a relatively high sulfur content.

At temperatures that are not too low, the sulfur bonds can increase the free range of motion between the chains, so the rubber doesn't harden. But if more sulfur is added, such as 25% - 50%, based on the weight of the rubber, it will make the chain to chain bond very tightly, causing the rubber to harden. Such rubber is called hard rubber.

In the modern 21st century, the shell of the battery is mainly made of abs high-strength and high-density plastic, but when the battery was just emerging, there was no such plastic, and hard rubber was used at that time!

Today's Datang obviously does not have the conditions to produce abs plastics, so Li Zexuan has no choice but to use hard rubber! For the current workshop, it is not difficult to make a battery case out of hard rubber!

This is thanks to the fact that he sent people to Nanyang to look for rubber, otherwise many things could not be made now!

"...Okay! The old man will arrange for someone to do it! The structure of this shell is not complicated, and it is estimated that it can be done in more than an hour!"

Fubo took the blueprint, glanced at it roughly, and then packed the ticket.

All kinds of machines in the workshop are ready-made, and he is still confident that he can make the shell within an hour.

He didn't ask Li Zexuan the purpose of making this shell, because he knew that Li Zexuan was going to tinker with something new again. As for what the new thing was, he would naturally know when it was made!

This is the tacit understanding he has cultivated with Li Zexuan for so long!

"Okay~! Then there is Lao Fubo~!"

Li Zexuan laughed.

Fu Bo smiled, and then took the drawings to the rubber production compound!

Li Zexuan went to the courtyard where the glaze was fired, because the separators in the modest battery were made of glass!

About two hours later, after the battery case, cathode plate and anode plate materials, and separators in the electrolyte were all ready, Li Zexuan began to prepare the electrolyte used in the battery!

This is very important!

In general, lead-acid batteries require a specific gravity of sulfuric acid concentration between 1.27-1.28. If the concentration is too small, it is easy to lose electricity. After a long time of use, lead sulfate crystals will be formed between the two polar plates, which cannot be removed in the subsequent recharging process and become a dead corner. When the resulting lead sulfate crystals reach a certain level, the battery will no longer store electricity. And if the concentration of sulfuric acid is greater than the standard, it is easy to generate lead sulfate crystals.

Therefore, the proportion of sulfuric acid and distilled water in the electrolyte must be strictly controlled!

It took Li Zexuan more than half an hour just to adjust the electrolyte!

The next job is to assemble these prepared materials and shells. This is not very troublesome. The only thing to pay attention to is not to bring sundries and dust into the electrolyte during the operation!

Fu Bo stood aside and watched the whole lead-acid battery production process earnestly. At 3 o'clock in the morning, it was already dark, and the light in the laboratory was turned on by Fu Bo. At this moment, Li Zexuan finally stood up. He got up, clapped his hands, sighed in relief, and said, "Okay! The world's first lead-acid battery is finally ready~!"

……………………

Support (end this site) and share this site with those who need it! Can't find the book, please leave a message!