103 Chapter 103 Paper Batteries (Revised)

Soon after Mr. Hong left, Xiao Shancha led Xiaoqin and Yangniu back.

A bright smile appeared on the face of the foreign girl, and the blue pupils showed the same innocence as the little camellia, holding a thing in both hands and holding it tightly in front of her chest, as if she was afraid that it would fly, and the haze of being chased and killed a few days ago was swept away.

Wang Xiaoyu asked tentatively: "Did you catch a bird?" ”

The foreign girl nodded desperately, and said happily: "I caught it, this little girl is too powerful, with only a slingshot and a small pebble, she knocked down the singing eyebrow bird 20 meters away."

Wang Xiaoyu has seen Xiao Shanli's slingshot, which is made of four bicycle valve core raw rubber tubes tied to a piece of cowhide, which is strong and has a range of more than 100 meters to catapult small stones. If you are hit more than 20 meters away, it hurts to think about it. I couldn't help asking, "Didn't you hurt a bird that hit it so closely?" ”

Xiao Shancha said: "Then I can use a lump of soil, and when I hit it on the head, it will fall apart and knock me out."

The girl said, "No, when I saw it fall from the loquat tree, I thought it was dead, and I was worried in vain!" ”

Xiaoqin covered her mouth and snickered on the side: "Seeing her tears almost falling, I thought she was a little girl overflowing with love, who would have thought that she would be the god of the CIA!" ”

Wang Xiaoyu also likes thrushes, and he once raised one at home. But now that I have something to say to the foreign girl, I can only separate the two of Xiao Camellia first, so I said to Xiao Camellia: "Girl, you and Sister Xiaoqin will take the bird out, find a cage, and raise it, okay?" ”

Xiao Shan Camellia twisted his head and said, "Hmph! They have the same virtue as my grandfather, and when they speak, they will support me back and forth, as if only you adults have secrets. ”

Wang Xiaoyu felt a little embarrassed, Xiaoqin was still here, the little girl was talking nonsense, as if she couldn't believe Xiaoqin, which made the family embarrassed. He laughed dryly and said, "We don't avoid you, you find the birdcage, and come back after you have placed the birds." Xiao Shancha cautiously took the flowers and birds and left.

Wang Xiaoyu told Yangniu about Mr. Hong's visit just now, and told Yangniu in detail about the modification of 36 drones.

After listening to this, the foreign girl complained: "You just promise people randomly, I don't have as much ability as you think!" That kind of small plant protection drone can't fly 10 kilometers on the plains, but you have to modify it to fly 50 kilometers in the 2,000-meter-high mountains. Do you think you're Superman? ”

Wang Xiaoyu smiled and said, "I'm not Superman, but you are!" ”

The girl said, "It's useless for you to put a top hat on me, aren't you just counting on my paper battery?" I only brought a box of 50 in total, and more than a dozen have been used up in the eucalyptus forest farm, and the remaining three drones are okay to modify, and you can dream of modifying 36 drones! ”

"Huh?" Wang Xiaoyu couldn't help but be stunned, he only said that there are still a lot of paper batteries for foreign girls, which are enough to toss by themselves, and now there is no power battery, no matter how advanced other equipment is, it is useless, what should I do?

Wang Xiaoyu scratched her messy hair and fell into deep thought. He has installed this kind of paper battery a few times, and it seems that the difficulty of making it is not high, that is, a piece of paper is evenly coated with some coating, can you make it yourself? He tentatively asked the girl: "Do you know the principle, formula, and manufacturing process of this paper battery?" Can we make our own? ”

The girl shook her head and said, "Impossible, there is no problem with the formula and manufacturing process, but where do those nano raw materials come from?" Where is the nano-scale spraying equipment? I have all the manufacturing processes, but it's hard for a good woman to cook without rice? ”

Wang Xiaoyu said without giving up: "It is said that the raw materials for the manufacture of HE weapons can be bought on a certain treasure and Y Masun, otherwise we will find it?" ”

Yang Niu said: "You look too highly at a certain treasure, ordinary commodities can definitely be bought, but these high-tech products, there are not many enterprises in our country M that can produce, let alone Huaxia?" ”

Wang Xiaoyu said: "If there were no paper batteries, maybe we would really have to live here for the rest of the barren mountains, and take the life of my cousin Moon." Dead horses should be live horse doctors, you can write me the raw materials you can use, and also write down the raw materials that can be replaced with each other, and I will try to find a way to find it. ”

Yang Niu sighed and said, "You think you are very smart, but you don't know that you are smart but you are mistaken by smart." Saying this, but also knowing the seriousness of the matter, he still called up all the paper battery formula processes stored in the computer.

Wang Xiaoyu read the information while giving him the knowledge of paper batteries on the side: "Paper batteries are a kind of supercapacitor batteries, also known as gold capacitors and farah capacitors, which use polarized electrolytes to store energy, which belongs to a kind of electric double-layer capacitors. Since the energy storage process does not undergo chemical reactions, this energy storage process is reversible, and because the supercapacitor can be repeatedly charged and discharged hundreds of thousands of times. ”

Wang Xiaoyu not only smacked his tongue secretly when he heard this, but asked, "Isn't that a battery that can be used for a lifetime?" ”

Yang Niu said: "Theoretically, the supercapacitor theory is based on the interface electric double layer theory proposed by the German physicist Helmholtz in 150 years, and many national laboratories have developed gold capacitors as early as decades ago, and there is a mature production process 30 years ago, but it is difficult to buy on the market now, and manufacturers are not willing to produce this kind of 'out-of-home' products is also one of the reasons." ”

Wang Xiaoyu said: "It also makes sense, if everyone buys a battery once, it is enough to use it for a lifetime, and no one will study the battery in the future, even if it is ten times stronger than the lithium battery, it is still not enough in many fields."

"The principle is that the surface of the metal electrode inserted into the electrolyte solution will have an excess charge with opposite signs on both sides of the liquid surface, resulting in a potential difference between the phases. Therefore, its production requires cathode materials, anode materials, isolation layers, and electrolytes. Its manufacturing process, the key point is to use nano spraying technology, the positive and negative electrode materials are dissolved into conductive ink, the negative electrode materials, electrolytes, and positive electrode materials are sprayed layer by layer on thin paper, and its close charge layer spacing is much smaller than the distance between the charge layers of ordinary capacitors, so it has a larger capacity than ordinary capacitors, the key is that each layer is only tens of nanometers thick, and many layers can be repeatedly sprayed up. For example, spraying 100 layers is only 0.5 mm thick, just imagine, a thin piece of paper is equivalent to 100 super large capacitors, how much power can it carry? ”。

Hearing this, Wang Xiaoyu already had a preliminary overall impression of the manufacture of paper batteries, that is, the raw materials were sprayed layer by layer on a piece of paper as required. But this nano-spray technology has no equipment and no one knows how to do it in this mountain? It's a real headache.

I only heard the foreign girl say: "The raw materials are not easy to find, and there is no technology and equipment for nano spraying, how can it be produced in this mountain?" So you're going to die this time! ”

Wang Xiaoyu didn't answer her, she was thinking hard about how to solve the problem of nano spraying? A single hair is 20 nanometers, which is simply not possible without specialized high-precision equipment. However, he knows that many circuit boards are now printed, called printed circuits. When I first graduated, I had engaged in screen printing advertising with my classmates, and I also studied screen printing. It's just that the thinnest ink layer of screen printing is 30 nanometers, and at its own level, the thinnest ink layer can probably control between 50 and 60 nanometers. A capacitor needs four layers of 200 nanometers, and a millimeter thickness is 1,000 nanometers, and five layers of super-large capacitive screens can be stacked and printed. The key is that it is very thin and light, and I don't know where to go than conventional lithium batteries. Thinking of this, I couldn't help jumping up with joy, and couldn't help shouting: "I thought of it, use screen printing instead of nano spraying!" ”

The foreign girl was taken aback by him, and when she heard him say that screen printing was used instead of nano spraying, she couldn't help but scoff: "You just have a whimsy, dozens of layers are stacked together, how thick is the screen printing?" The isolation layer in the middle will not dry for several days, and it will be short-circuited as soon as the power is turned on! ”

Wang Xiaoyu solved a big trouble, and his mood was much more relaxed, saying: "The isolation layer in the middle is easy to do, and it is dried in an oven." It really didn't work, so Huang Jiahao sent more than 10 soldiers to blow it with a hair dryer. We can't make the original paper battery, then we will make a copycat, hundreds of layers of overprinting is not good, screen printing will be twenty paint overprint is still no problem, right? The first-level capacitor needs four layers of printing, and there are also five-level super-large capacitors, and the cottage will be the consciousness of the copycat, and the performance is almost a little bit worse, the key is that it is more than half lighter than the lithium battery, and the storage capacity of the same volume is three or five times more than the lithium battery, we will connect dozens of pieces of this kind of cottage paper battery and install it on the drone, and there will be no problem when flying for a few hours,"

Yangniu thought for a while and said: "It is possible to make a simple version of the paper battery by screen printing, but where can I find the cathode material nano graphite powder, the anode material nano silver wire, and the conductive ink?" ”

Wang Xiaoyu said: "This is likely to be available on the Internet!" ”

After speaking, Yang Niu turned on her microcomputer, and the two of them logged on to a certain treasure with apprehension. Trying to enter "nano silver wire", unexpectedly, more than 20 companies popped up on the first page to produce and sell nano silver wire, Wang Xiaoyu asked puzzledly: "Why are so many companies in production?" Is China also producing paper batteries? ”

Yang Niu said: "Impossible, even if your laboratory can make it, it may not have the conditions for industrial production, otherwise we would have received the information a long time ago." You see, their nano silver wire is mainly used to make touch screens. ”

Wang Xiaoyu carefully read the following instructions, and sure enough, it was the supporting raw materials for the production of touch screens, and he couldn't help but be disappointed, and couldn't help but ask Yangniu: "Can the nano silver wire used to make the touch screen also work?" ”

Yangniu held down the mouse, looked through it for a while, pointed to a company in Suzhou and said: "This family's nano silver wire can, their nano silver wire has done 20 nanometers, although there is still a distance from the required five nanometers, but don't you also say, do cottages to have the consciousness of cottages, don't be so demanding!" ”

Wang Xiaoyu asked, "It won't have too much impact on performance, right?" If it is made by then, it will be as good as a lithium battery, but it will be finished. ”

Yang Niu said: "Of course, there will be an impact, the surface area of the stored charge is small, but since you use screen printing, I will design each layer into countless 'mouth' shape solid grids, a small grid is a miniature capacitor, so that each layer has tens of thousands of small capacitors, which is very helpful for charging and storing charges, and helps you improve the performance of the cottage battery as much as possible!" ”

Wang Xiaoyu said: "Fortunately, I am here, otherwise I would be blind, by the way, this company also has conductive coating liquid, electrolyte, can they all be used?" ”

Yang Niu said: "Yes, ten kilograms of each kind is enough to make hundreds of battery packs." ”

Wang Xiaoyu added these to the shopping cart, and after a while he had to ask Mr. Hong for money, these things are not cheap, and his Alipay balance can't even be charged with 50 yuan of phone bills.

Next, they found anode materials nanographite and conductive inks at a company in the Tianjin Development Zone. The rest is easy to do, screen printing equipment, there are thousands of stores in Taobao to sell, in order to make the ink layer as thin as possible, he selected 5 meters 420 mesh Swiss yellow mesh, selected two bottles of 1711 photosensitive glue, thinner 783,719 and washing water each bought 15KG, glue scraping, hanging bucket like not pulling, and found a complete set of iodine lamp and other equipment for the plate. So far, all the raw materials and equipment for manufacturing copycat paper batteries have been found on Taobao.

Breathing a sigh of relief, I finally found all the materials. Wang Xiaoyu, who had just sat on the chair, suddenly bounced up again, patted his head and said, "It's over, it's over, you still can't use screen printing!" ”

The girl was puzzled and asked, "Why?" Didn't you buy all the materials? ”

Wang Xiaoyu said: "What about the film? There can't be commercial photography in this ravine, right? How do you make a plate without film? ”

The girl spread her hands, shrugged her shoulders and said, "It's none of my business." ”

Wang Xiaoyu said to the guards at the door: "Quick, notify Huang Jiahao to come over, I have something urgent to find him!" ”

Five minutes later, Huang Jiahao, who was sweating profusely, ran over, and before he could speak, Wang Xiaoyu asked, "Do you have laser printers in your troops?" It turned out that in a hurry, Wang Xiaoyu wanted to use a laser printer to print the pattern onto copy paper instead of film.

Huang Jiahao wiped his sweat and replied, "No, what do you want that thing for?" ”

Wang Xiaoyu was half cold, and asked again: "How long will it take for the domestic express delivery to get here?" ”

Huang Jiahao said: "What is it? Generally, it takes a week for small pieces. ”

Wang Xiaoyu said: "Didn't you say that the air freight will arrive in only three days?" ”

Huang Jiahao said: "It took three days to get to the capital of country Z, or the largest city of country A, and I had to drive myself through hundreds of kilometers of war zones to get it, didn't I travel for three or four days?" ”