The materials used in voltaic cells are: silver flakes, zinc flakes, salt and absorbent paper. As long as they are simply stacked together, it is a battery that can generate electricity!
So were these materials available in ancient times? If the era you want to travel to is the Ming Dynasty, congratulations, you have all these things! You can charge your phone directly. Because metallic zinc was first invented by the Chinese in the Ming Dynasty, it was called "Japanese lead" at that time. It seems that it was first extracted from silver mines imported from Japan.
But unfortunately, Li Zexuan traveled to the Tang Dynasty, so he lacked one material: zinc sheets.
But wouldn’t it be possible to make a voltaic battery without metallic zinc? Of course not, as long as there are two different metals, it can be made. The difference is the voltage and current generated. The positive electrode material used in modern dry batteries is copper (gold and silver are better, but that is for flashlights of wealthy people), and the negative electrode material is zinc.
Copper was also easy to obtain in ancient times (unless you were unlucky for eight lifetimes and traveled to the Stone Age). The negative electrode material can be aluminum or iron... Yes, iron is cheaper than copper!
In the room, ah, no, it should be in the "laboratory", Li Zexuan was secretly glad that in his previous life, he had questions after reading "Myth" and searched a lot of information related to battery manufacturing. Otherwise, he really can't think of making a voltaic battery now, and he will definitely go to work on a generator without fear of a newborn calf.
Is this bitch just lucky
Because in the Tang Dynasty, when there was no industrial and electronic foundation, it would be really difficult to build a generator with the little theoretical knowledge he learned from textbooks. Li Zexuan does not plan to build a generator at the moment. There are too many technical problems to solve, let’s work on them later.
Li Zexuan took a special rectangular clay pot. There were fifty independent compartments inside the pot. Because the voltage and current of a voltaic battery are definitely not enough, some need to be connected in parallel to increase the current, and then connected in series to increase the voltage.
The voltage of the crudest voltaic battery is about one volt, and the current generally ranges from ten to twenty milliamperes. If the voltage of the voltaic cell in each cubicle is one volt and the current is ten milliamps, then fifty voltaic cells connected in parallel are counted as a battery pack, and five such voltaic cell packs are connected in series. Together, you can get a power supply with a voltage of five volts and a current of 500 mA, and then the charging problem of your mobile phone can be solved (PS. If you are planning to travel to ancient times with your mobile phone, please remember this simplest How to charge your phone).
Of course, Li Zexuan was a soul traveler. When he traveled through time, he brought nothing with him. The purpose of making the battery was definitely not to charge mobile phones, but to power communication tools.
He also often laments why he is not wearing clothes and cannot bring a computer. He can just bring a mobile phone. It is also great to play stand-alone Landlords or cut fruits when he has nothing to do.
However, Soul Transmutation also has the advantages of Soul Transmutation. At least there is no obstacle when communicating with people in the Tang Dynasty, because the Mandarin of the Tang Dynasty is not Mandarin at all. It has a very strong accent. If it were not for Soul Transmutation, you would not be able to understand others at all. What are you saying.
Li Zexuan prepared a small basin of concentrated salt water, and then poured the concentrated salt water into each small compartment one by one. After all fifty small compartments were filled, he inserted the two ends of the iron pieces he had bent in advance into the two small compartments. adjacent compartments, and then insert the previously bent copper sheet on the other side.
The copper sheet is the positive electrode of each voltaic cell, and the iron sheet is the negative electrode. In this way, the iron sheet and the copper sheet are inserted crosswise into the compartment, which is equivalent to connecting all the positive electrodes together, and the negative electrodes are also connected together. Overall, Fifty small batteries are connected in parallel to form a battery pack with a voltage of about one volt and a current of about 500 milliamps.
After making the first battery pack, Li Zexuan took the copper wire, which was painted on the surface. He used the copper wire to lead out the positive and negative electrodes of the battery pack respectively. Then he put the rectangular clay pot into Cover it with a matching lid, and you have a simple battery. It is also very convenient to use. Just connect the positive and negative poles directly to the circuit. If you think the voltage is not enough, just make a few more batteries like this and connect them in series.
"Master, it's time to eat!"
At this time, Xiao Xi knocked on the door and shouted.
The little maid took advantage of the time when Li Zexuan was doing experiments and asked Sanbao to drive her carriage back to the Li Mansion to get dinner. After all, the food outside was definitely not as good as the Li family's delicacies. In order to make Li Zexuan live comfortably, Xiao Xi also tried his best.
"Well, okay, I'll be out right away!"
When Li Zexuan heard this, his heart was filled with happiness. Compared with his previous life, he was doing the same job now, but his situation was completely different.
In his previous life, he spent three years as a graduate student, basically spent in the laboratory. He entered the laboratory to check in at 8:30 every morning, and usually came out of the laboratory around 10 o'clock in the evening. Of course, he had to check in again. The person in charge of the project team People have to check their attendance every month.
Sometimes in order to catch up with the progress of the project, he would work overtime in the laboratory until one or two o'clock or even all night long. At best, he is working on the front line of scientific research, but at worst, he is just a hard-working wage earner and engineering dog!
And now, although he is engaged in scientific research (basic scientific research), there is a pretty little maid next to him to take care of his food and daily life, and there is a "driver" outside at any time. This benefit, this treatment, this enjoyment, Li Zexuan said , such a happy engineering dog, he will be willing to do it for the rest of his life!
"Hmm, it smells so good. What delicious food did Aunt Zhao make tonight?"
Li Zexuan left the room and came to the main hall. He noticed that it was almost completely dark outside. He sniffed with his nose and immediately smelled the aroma of vegetables. So he quickly came to the dining table, picked up his chopsticks and started eating. Ready to eat.
"Hey, hey, master, you haven't washed your hands yet!"
When Xiao Xi saw this, he quickly grabbed Li Zexuan and said.
"Uh... yes!"
Li Zexuan looked at his dirty hands and felt cold. It was a taboo to eat without washing his hands after doing the experiment. What he did today was just an ordinary experiment, but if he used some toxic substances in future experiments, he would not wash his hands again. Is it miserable
Thinking of this, he quickly followed Xiao Xi to wash his hands before returning to the table to eat.
"Xiao Xi, have you eaten?"
"Master, of course you should finish eating Xiao Xi before eating!"
"Well, it's really annoying. Come and sit down and eat together. You know Master, I hate these rules the most!"
Xiao Xi glanced at Li Zexuan in embarrassment, but finally went to serve herself a bowl of rice and sat across from Li Zexuan. It wasn't the first time anyway. A few months ago, she and Xiao He were in the same room as Li Zexuan at Zuixian Tower. Dinner at the table.
"Come on, come on, eat a lion's head and grow more meat!"
Xiao Xi: "... Thank you, Master!"
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(End of chapter)