The materials used in voltaic batteries are: silver sheets, zinc sheets, salt and absorbent paper. Just pile them together and it's a battery, and you can generate electricity!

So were these materials available in ancient times? If the era you want to travel through is the Ming Dynasty, congratulations, you have all these things! You can charge your phone directly. Because the metal zinc was first invented by the Chinese in the Ming Dynasty, it was called "putin" at that time, as if it was first extracted from silver ore imported from Japan.

But unfortunately, Li Zexuan traveled to the Tang Dynasty, so he lacked one material: zinc sheets.

But can't voltaic batteries be made without metal zinc? Of course not, as long as there are two different metals that can be made, the difference is the amount of voltage and current generated. The cathode material used in modern dry batteries is copper (gold and silver are better, but that is for the flashlights of wealthy people), and the anode material is zinc.

Copper was also readily available in ancient times (unless you poured eight lifetimes of mold and traveled back to the Stone Age), and the anode material could be aluminum, or iron...... Yes, it's cheaper iron than copper!

In the room, ah, no, it should be in the "laboratory", Li Zexuan secretly congratulated himself in his heart that he had questions in his previous life because he watched "Myth", and Baidu had a large number of materials related to the manufacture of batteries. Otherwise, he really can't think of making voltaic batteries now, and he will definitely go to the generator without fear of a newborn calf.

Is this special mother's shit lucky?

Because in the Tang Dynasty, which did not have any industrial and electronic foundation, it would be really difficult to build a generator with the theoretical knowledge he learned from textbooks.

Li Zexuan took a special rectangular clay pot, and there were fifty independent small compartments inside the clay pot, because the voltage and current of a voltaic battery were definitely not enough, so it was necessary to increase the current in parallel, and then increase the voltage in series.

The voltage of the most crude voltaic battery is about one volt, and the current is generally about ten to twenty milliamperes. If the voltage of each small compartment is one volt and the current is ten milliamps, then fifty voltaic batteries are counted in parallel as a battery pack, and five such voltaic batteries are connected in series to get a power supply with a voltage of five volts and a current of five hundred milliamps, and then the charging problem of your mobile phone can be solved (PS. If you are going to travel to ancient times with your mobile phone, please remember this is the easiest way to charge your mobile phone).

Of course, Li Zexuan is a soul piercing, when he crossed over, he didn't bring anything over, and the purpose of his battery building was definitely not to charge the mobile phone, he was to power the communication tool.

He also often lamented why he was not wearing, he couldn't bring a computer, he could bring a mobile phone over, and he had nothing to do to play with a single machine to fight the landlord, or it was also excellent to cut fruits.

However, soul wearing also has the benefit of soul wearing, at least there is no obstacle when communicating with the people of the Tang Dynasty, because the official language of the Tang Dynasty is not Mandarin at all, with a very strong accent, if it is not for soul wearing, you can't understand what others are saying at all.

Li Zexuan prepared a small basin of concentrated salt water, and then poured the concentrated salt water into each small compartment one by one, and after the fifty small compartments were full, he inserted the iron sheet he had bent in advance, and inserted the two ends of the two adjacent compartments respectively, and then inserted the copper sheet that had been bent in advance on the other side.

The copper sheet is the positive electrode of each voltaic battery, and the iron sheet is the negative electrode, so the iron sheet and the copper sheet are crossed into the compartment, which is equivalent to connecting all the positive electrodes together, and the negative electrodes are also connected together, and on the whole, fifty small batteries are connected in parallel to become a battery pack with a voltage of about one volt and a current of about 500 milliamperes.

After making the first battery pack, Li Zexuan took the copper wire, which was a copper wire with lacquered surface, and he used the copper wire to lead out the positive and negative poles of the battery pack respectively, and then he covered the rectangular clay pot with a lid that matched it. If the voltage is not enough, make a few more such batteries and connect them in series.

"Young Master, it's time to eat!"

At this time, Xiao Xi knocked on the door and shouted.

The little maid took advantage of Li Zexuan's experiment to let Sanbao drive the carriage to take her back to the Li Mansion to get dinner, after all, the food outside is definitely not as good as the food of the Li family. In order to make Li Zexuan's life comfortable, Xiaoxi also tried his best.

"Well, okay, I'll be right out!"

When Li Zexuan heard this, his heart was also full of happiness, compared to his previous life, he was doing the same job now, but the situation was completely different.

In his previous life, he was a graduate student for three years, basically spent in the laboratory, entered the laboratory at half past eight in the morning to check in, and generally came out of the laboratory at about ten o'clock in the evening.

Sometimes in order to catch up with the progress of the project, it is not for nothing to work overtime in the laboratory until one or two o'clock or even all night.

And now, although he is also engaged in scientific research (basic scientific research), there is a pretty little maid next to him to take care of the diet and daily life, and there is a "driver" on standby outside, this welfare, this treatment, this enjoyment, Li Zexuan said that he is willing to be such a happy engineering dog for the rest of his life!

"Mmmm, it's so fragrant, what did Aunt Zhao cook tonight?"

Li Zexuan walked out of the room and came to the main hall, only to notice that it was almost completely dark outside, he sniffed with his nose, and immediately smelled a smell of vegetables, so he walked quickly to the dining table, picked up chopsticks and prepared to eat.

"Hey, young master, you haven't cleaned your hands yet!"

Seeing this, Xiao Xi hurriedly grabbed Li Zexuan and said.

"Uh.... That's right! ”

Li Zexuan looked at his dirty hands, cold, it is taboo to eat directly without washing his hands after the experiment, what he did today is just an ordinary experiment, but if he uses some toxic substances in the experiment in the future and then does not wash his hands, will it be miserable?

Thinking of this, he hurriedly followed Xiaoxi to wash his hands, and then returned to the table to eat.

"Xiaoxi, have you eaten?"

"Young master, of course you will eat it after you finish eating!"

"Hmm, it's really annoying, sit down and eat together, you know that young master, I hate these rules the most!"

Xiao Xi glanced at Li Zexuan in embarrassment, and finally went to serve herself a bowl of rice and sat opposite Li Zexuan, anyway, it was not the first time, a few months ago, she and Xiaohe had eaten at the same table with Li Zexuan in Zuixian Building.

"Come on, come on, eat a lion's head, grow more meat!"

Xiaoxi: ".......... Thank you, young master! ”

......................................

(End of chapter)