Chapter 541: Lie to Everyone
It is actually not that easy to discharge the battery. This is mainly related to the type of battery. For example, ordinary dry batteries are easier to discharge. Even if there is a short circuit, it will only burn or explode in a small scale, which will not cause much damage. question. However, some batteries are not so safe.
There are four batteries in total that we have to deal with. Among them, the lead-acid battery has the largest storage capacity, but it is also the safest, because we only need to release the acid inside. The remaining three batteries are a bit troublesome.
After our careful inspection, these three batteries appear to be hybrid batteries and are quite high-end. This kind of battery looks like a whole, but in fact this is what it looks like after packaging. The inside of the battery is actually divided into three parts and a small number of circuits.
These three parts are a circuit board and two batteries. Yes, just two batteries. What looks like a single battery on the outside actually contains two completely different batteries, which are connected by wires and a circuit board. The current output by the battery is also derived through the circuit board rather than directly from the battery.
This packaging mode is generally used for rechargeable batteries, but it is generally not possible to seal two different types of batteries. This is obviously a special need that led to the modification to this structure.
Among the two parts sealed in the battery, the larger part at the bottom does not have much problem. It is a more conventional lithium-ion battery. The storage capacity is quite good and the discharge is very safe. The problem arises. On the battery above, near the circuit board.
This battery, which is only two stacked one-dollar coin-sized batteries, is actually a hydrogen metal battery. Hydrogen metal batteries are as famous as their large capacity for their unstable characteristics.
Basically, in our understanding of hydrogen metal batteries, we can think of it as a battery, or it can be thought of as a bomb. If this thing is out of power, it is fine. If there is power, once the discharge speed is too fast, it will lead to anti-electricity. The status is getting faster and faster. In the end, it completely lost control and exploded, and its explosion power was mainly related to its own energy storage. The explosion power of a fully charged hydrogen metal battery is about 8 to 9 times that of TNT of the same volume. It is only slightly more powerful than a nuclear weapon. If you just throw a few kilograms out, people who don't know will think it is a small nuclear weapon. There's an explosion. From this you can imagine how unsafe this thing is.
Of course, instability is instability. In some cases, this thing is actually quite useful, and the self-discharge acceleration characteristics of hydrogen metal can be countered at low temperatures, which means that if there is a suitable environment, it is easy to suppress the explosion. For example, some civilian power stations will use hydrogen metal batteries for short-term power dump. In order to suppress explosions, special liquid nitrogen cooling tanks will be prepared to directly soak the batteries in liquid nitrogen. At this temperature, hydrogen metal batteries are It is absolutely impossible to explode directly. Even if it does explode, the surrounding liquid nitrogen must be evaporated first.
but. It is really rare to use hydrogen metal batteries in mobile devices. After all, mobile devices may be dropped and explode accidentally. I don’t know what such a dangerous thing was used for before.
Anyway, what we have to do now is to remove these three hydrogen metal batteries and the lead-acid battery below without losing pressure in the outer oil seal.
"Evrit, I leave this to you." I pointed to the lead-acid battery and said.
Everett quickly approached. Then he lay on the ground, then moved his arms to the position I pointed out, unfolded the multi-functional auxiliary arms at the front of the two robotic arms, and then took out two drill bits from the tool box he carried with him. This drill bit is different from ordinary drill bits. That is, it is hollow, with a hole in the middle like a syringe needle. Of course, the thickness is not the same as that of a syringe. This thing is much thicker than a syringe, with a diameter of more than three millimeters.
Insert the drill bit into a small clip on the tip of his finger, and then Everett stretches his finger to where the battery is. Then the drill suddenly began to rotate rapidly, and Everett's fingers began to move forward slowly and steadily. The most important thing in this process is to be steady. Everett's fingers cannot move in any way, so that the drilled hole can maintain a perfect fit with the drill bit, so that the oil inside will not flow when drilling through the outer shell. If you come out, you will naturally not be relieved.
If a human were to complete this task, it would probably be very difficult, because no matter how stable the human hand is, there will still be a slight tremor, but Everett's body is purely mechanical, and it is as stable as an electronically controlled machine tool. , as the fingers slowly advanced, the drill bit quickly passed through the pipe shell, and then entered the oil seal. However, the drill bit did not stop working, but continued to move forward, and soon came into contact with the shell of the lead-acid battery inside. The plastic lead-acid battery casing was quickly penetrated, and the drill bit controlled by Everett quickly entered the interior of the lead-acid battery.
After confirming that the drill bit entered the acid, Everett immediately held the drill bit with his other hand to stabilize it, then loosened the clamp on the tip of the finger holding the drill bit, and then used the small clamp on the tip of the finger to reduce the aperture clamp. There is a small metal feel inserted into the hole in the middle of the drill bit. Everett's fingers began to rotate in reverse and quickly retreated. A thin metal rod with threads was quickly pulled out, and almost as soon as the thing was pulled out, there was a flow of light yellow acid inside. It came out, but there was very little flowing acid, and it was obviously not possible to release the acid in the battery pack.
Of course we know that it is impossible to release much acid by just drilling a hole, because the battery itself is sealed. If a hole is opened, a pressure balance will be formed and the acid inside will not flow out on its own. But we have to wait a while, because once the lead-acid battery discharges the current first, the three batteries inside will directly detonate the bomb, so we need to discharge them together and ensure that the power gap of all batteries is not different. Large, this can ensure that the bomb will not be detonated in advance due to a sudden power outage of a certain battery.
After Everett made a hole, he immediately used the auxiliary robot arm to grab the drill bit that had been drilled in. Then he freed his arm and started drilling again. However, this time he did not rush to open the channel. He just drilled the hole first without pulling it out. The metal seal in the middle.
After Everett was settled, we began to solve the three more troublesome batteries.
Although this thing is quite troublesome, it is not impossible to find a way. The method we used is actually the same as before. We first hand over the drill bit made by Everett to others to stabilize it. Then I asked Everett to come over and make holes for each of the three batteries. However, he could not make holes directly in the battery itself. Instead, he used two drill bits as conductive electrodes to touch the metal contacts, and then began to quickly place the batteries. During this process, Shuangxue also needs to be there to cool down the oil inside the oil seal, because the battery will heat up when discharging, and the hydrogen battery cannot heat up too high. Otherwise it will explode, but this bomb has a countdown, so we can't discharge it slowly, we can only discharge it faster, which makes it difficult to control the temperature and requires external cooling.
Fortunately, Shuangxue has excellent temperature control capabilities, and we quickly completed the electrode connection of three special batteries. Then put one person in charge of a battery, hold two drill bits with both hands, and use our own electromagnetic control ability to control the battery to discharge at a verified speed.
After struggling for so long, the number on the counter has changed to just over five minutes left, but the previous preparations are complete. The rest is easy. It took more than three minutes for us to finally discharge most of the lights on those batteries. Although the countdown on the display only had more than one minute left, it was clearly visible at this time that the The numbers have become very bleak, which is a result of the battery voltage dropping. It is estimated that the bomb battery will be completely out of power in another ten seconds.
The facts were as accurate as our calculations. After more than ten seconds, the numbers on the bomb suddenly went completely black. Then we heard that an electrical component inside the bomb seemed to be moving, but in the end we could only hear a few clicks and then nothing. The sound was actually because one of the batteries ran out of power first, causing the control system in the line to think that the line was cut off, so it started preparing to detonate the bomb, but the remaining batteries were also dead. Therefore, the power accumulated in the circuit cannot activate the igniter at all. The result is that the relay can be heard snapping and trying to supply power, but the result is that it cannot supply power at all. After a few jumps, the remaining pieces are finally connected. The last bit of power in the battery evaporated, and the entire bomb failed completely.
"OK, this thing is fine."
"You've got it done, why don't you come over and help me!" Jingjing, who was responsible for forming the shield, shouted: "We can't hold it anymore!"
"Just come here, wait a minute." When I looked around, I found that there were people everywhere. I quickly asked everyone to gather together to reduce the area that was hit, and then completely dismantled the bombs and destroyed them. The core that represented the nuclear bomb was taken out, and the other parts were completely ignored and started to move directly towards the stairs not far away.
The people around us had been shooting at us, but they were worried that they could never penetrate our shield. But now that they saw us moving, they realized that there seemed to be something wrong with the previous battle.
The images that the surrounding soldiers saw were a large group of them surrounding us and firing continuously, but because of the protective cover, all the bullets were blocked, even missiles and some special weapons were useless. However, when we moved, they found that our position was flashing to the left and right like a movie cassette, and those who responded quickly responded suddenly. The location they saw about us before was simply false. They were disturbed by the illusion from the beginning. Although because they all have anti-mental interference devices, Amynis has no way to control their senses, and there is no way to completely block their senses with illusions, but Amynis can fine-tune the images they see.
Because of the role of Ermenis, although the picture these people saw was generally correct, in fact, our position they saw was always deviated from the actual situation. These people had been firing at the open space before, and only some of them fired. The deflected bullet hit the protective cover. Otherwise, how could Jingjing and the three of them have lasted for so long? But just now because these people were busy attacking, no one noticed this problem. Now after we moved, due to sensory confusion, these people quickly discovered the problem, but it was too late. (To be continued ~^~)