Chapter 3318

It is not so easy to discharge the battery. This is mainly related to the type of battery. For example, the general dry battery is easier to discharge. Even if it is short circuited, it will burn up or explode in a small scale, so there will be no big problem. But some batteries are not that safe.

We have to deal with a total of four batteries, of which the lead-acid battery has the largest storage capacity, but on the contrary, it is the safest, because as long as the acid inside is discharged, the remaining three batteries will be in some trouble.

After our careful inspection, these three batteries seem to be a hybrid battery, and quite advanced. This kind of battery looks like a whole, but in fact, this is what it looks like after being packaged. Inside the battery, it is actually divided into three parts and a small number of circuits.

These three parts are a circuit board and two batteries. Yes, two batteries. It looks like a whole battery on the outside, but actually there are two completely different batteries inside. They are connected to a circuit board through wires. The current output from the battery is also derived from the circuit board rather than directly from the battery.

This kind of packaging mode is usually used for rechargeable batteries, but there is no case that two different types of batteries are sealed in, which is obviously a special need to refit this structure.

Among the two parts sealed in the battery, the larger part at the bottom has no big problem, that is, compared with the conventional lithium-ion battery, the storage capacity is good and the discharge is safe. The problem lies in the battery near the circuit board above.

The battery, which is the size of two one dollar coins stacked together, is a hydrogen metal battery. Hydrogen metal battery is as famous as its large capacitance because of its instability.

Basically, in our understanding, hydrogen metal battery can be regarded as a battery or a bomb. It is good if the device is out of power. If there is electricity, once the discharge speed is too fast, it will lead to a faster and faster anti electricity state. Finally, it will completely lose control and explode. Its explosion power is 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, and its power is slightly better than that of nuclear weapons. Anyone who does not know will think that it is a small nuclear weapon explosion if you throw a few kilograms at random. So you can imagine how unsafe this thing is.

Of course, unstable to unstable. In some cases, this thing is actually very useful, and the self discharge acceleration characteristics of hydrogen metal can be antagonized by low temperature, that is, if there is a suitable environment, it is easy to suppress the explosion. For example, some civil power stations will use hydrogen metal batteries for short-term power dump. In order to suppress the explosion, special liquid nitrogen cooling tanks will be prepared to soak the batteries directly in liquid nitrogen. At this temperature, the hydrogen metal batteries are absolutely impossible to explode directly. Even if they want to explode, they must first evaporate the surrounding liquid nitrogen.

However, the use of hydrogen metal batteries on mobile devices is really rare. After all, if the mobile devices do not work well, they will fall down and explode accidentally. I don't know what it was used for before.

Anyway, what we need to do now is to remove the three hydrogen metal batteries and the lead-acid batteries below, and do not let the outer oil seal lose pressure.

"Everett, this is for you." I said, pointing to the lead-acid battery.

Everett quickly approached, then fell on the ground, then moved his arms to the position I pointed out. The multi-functional auxiliary arms at the front of the two mechanical arms unfolded, and then took out two drill bits from the tool box. This kind of drill is different from the ordinary drill, that is, it is hollow, with a hole in the middle as the syringe needle. Of course, it is not as thick as a syringe. It is much thicker than a syringe, and its diameter is more than three millimeters.

Put the drill bit into a small clip at the tip of his finger, and Everett put his finger into the position of the battery. Then the drill bit suddenly began to rotate rapidly, and Everett's finger began to move forward slowly and steadily. The key to this process is to be stable. Everett's fingers cannot move in any way, so that the hole drilled out can keep a perfect fit with the drill bit, so that when drilling through the outer shell, the oil inside will not flow out and the pressure will not be released naturally.

If it is a human to complete this task, it is estimated that it is very difficult to do it, because human hands will vibrate slightly even if they are stable. However, Everett's body is purely mechanical, and it is as stable as an electronic control machine tool. As the fingers slowly advance, the drill bit quickly passes through the pipe shell, and then enters the oil seal. However, the drill does not stop working Moving on, it quickly touched the inside of the lead-acid battery housing. The plastic lead-acid battery case was soon penetrated, and Everett controlled drill bit quickly entered the inside of the battery.

After making sure that the drill bit is in the acid solution, Everett immediately pinches the drill bit with his other hand to stabilize it. Then he releases the clip on the tip of the finger with the drill bit, and then uses the small clip on the tip of the finger to narrow the aperture and clamp a small metal feeling inserted in the hole in the middle of the drill bit. Everett's fingers began to rotate in reverse direction and quickly retreated. A thin metal rod with thread was quickly pulled out. Almost at the moment when the thing was pulled out, the light yellow acid liquid flowed out immediately. However, the flow of acid was very little, which obviously could not discharge the acid in the battery pack.Of course, we know that it is impossible to release much acid by drilling a hole, because the battery itself is sealed. If a hole is opened, the pressure balance will be formed, and the acid inside will not flow out by itself. But we have to wait a little while, because once the lead-acid batteries discharge 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 small, so as to ensure that the bomb will not be detonated in advance due to the sudden power failure of a certain battery.

After finishing a hole, Everett immediately grabbed the bit that had been driven with the auxiliary manipulator, then emptied his arm and started drilling again. But this time, he did not rush to open the channel, but drilled the hole first without pulling out the metal seal in the middle.

After Everett finished this, we started to solve the three more troublesome batteries.

Although this thing is very troublesome, it is not impossible to find a way. In fact, we used the same method as before. First, we handed the drill bit made by Everett to other people to stabilize it, and then asked Everett to open holes for the three batteries respectively, but we could not directly open holes in the battery itself. Instead, we used the two drill bits as conductive electrodes to contact the metal contacts, and then started to let the batteries quickly release. In this process, frost and snow still need to cool the oil inside the oil seal by the side, because the battery discharge will heat up, while the hydrogen battery can't heat up too high, or it will explode. But the bomb has a countdown, so we can't discharge slowly, we can only speed up the discharge, so the temperature is very difficult to control, and external cooling is necessary.

Fortunately, the temperature control ability of frost snow is relatively good. Soon we finished the electrode docking of three special batteries, and then put a person in charge of a battery, holding two drill bits with both hands, and using our own electromagnetic control ability to control the battery discharge at the verified speed.

After such a long time, the number on the counter has become more than five minutes left, but the previous preparation is completed, and the rest is simple. It took more than three minutes for us to release most of the lights on those batteries. Although the countdown on the display is only over one minute, it is obvious that the number on the display has become very dim. This is the result of the drop of battery voltage. It is estimated that the bomb battery will be completely dead in more than ten seconds.

The fact is as accurate as our calculation. After more than ten seconds, the number on the bomb suddenly completely blackened out. Then we heard that some electrical component inside the bomb seemed to move for a moment, but the result was that only a click could be heard, and there was no further information. In fact, there was no way for the battery to switch off the power supply, but the battery did not start to switch off. As a result, there was no way for the battery to switch off. As a result, there was no way to activate the battery After several times, even the last bit of electricity of the remaining batteries evaporated, and the whole bomb completely failed.

"OK, it's OK."

"You've done it, will you come and help me?" Jingjing, who is responsible for forming the shield, shouts: "we can't carry it any more!"

"Just come, just a moment." As soon as I looked at the surrounding situation, I found that there were people all over the place. I quickly asked everyone to gather together to narrow down the area to be hit. Then I completely dismantled the bomb and took out the core representing the nuclear bomb. The rest of it was just moving towards the stairs not far away.

People around were shooting at us all the time, but they felt that they couldn't get through our shield all the time. But now that they see us moving, they find that there seems to be something wrong with the previous battle.

The soldiers around had seen images of a large group of them shooting around us, but because of the protective cover, all the bullets were blocked, even the missiles and some special weapons were useless. However, when we moved up, they found that our position was flickering from left to right like a movie cassette, and the quick reaction suddenly came. The position they saw before was a fake. They were distracted by illusions from the beginning. Although they all have anti mental interference devices, emmetz has no way to control their senses, nor can they completely mask their senses with illusions, but emmetz can fine tune the images they see.

Because of the role of emmetnis, although the pictures they saw were 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 a few missed bullets hit the protective cover. Otherwise, how could the three of them survive such a long time? But just now, because these people were busy attacking, no one noticed the problem. Now when we moved, because of the sensory confusion, these people quickly found out the problem, but it was too late.

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