Starting from Zero

To discharge the battery is actually not so easy. 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 a small explosion, there won't be much problem. However, some batteries are not so safe.

There are a total of four batteries we have to deal with. Lead-acid batteries have the largest capacity, but they are the safest, because we just need to let out the acid inside, and the remaining three The battery is a bit troublesome.

After our careful inspection, these three batteries seem to be a kind of hybrid battery, and they are quite high level. This kind of battery looks like a whole, but in fact this is what it looks like after being packaged. 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, it is two batteries. What looks like a whole battery on the outside actually has two completely different batteries inside, which are connected to a circuit board by wires. The external output current of the battery is also derived through the circuit board instead of directly derived from the battery.

This kind of packaging mode is generally only used for rechargeable batteries, but generally it does not appear to be enclosed in two different types of batteries. This is obviously a special need to refit into this structure.

Among the two parts sealed in the battery, the larger part at the bottom is not too problematic. It is a more conventional lithium-ion battery. The storage capacity is not bad, and the discharge It's also very safe. The problem lies with the battery near the circuit board.

This battery, which is the size of a dollar coin with only two stacked together, turned out to be a hydrogen metal battery, and the hydrogen metal battery is as famous as its large capacity for its unstable characteristics.

Basically, hydrogen metal battery can be considered as a battery in our understanding, or it can be considered as a bomb. It is okay if this thing is out of power. If there is power, once the discharge speed is too fast The situation will cause the anti-electricity state to become faster and faster, and finally it will completely out of control and explode, and its explosive formidable power is mainly related to its own energy storage. The exploded formidable power of a fully charged hydrogen metal battery is approximately equivalent to 8 to 9 times that of the same volume of TNT. The formidable power is slightly better than nuclear weapons. You can get a few kilograms and throw it out. People who don’t know will think it is. Small nuclear weapons exploded. From this you can imagine how unsafe this thing is.

Of course, instability is unstable. In some cases, this thing is actually quite useful, and the self-discharge acceleration characteristics of hydrogen metal can be countered by low temperature, which means that if there is a suitable environment , Suppressing the explosion is also very easy. For example, some civil power stations will use hydrogen metal batteries for short-term power dump, and in order to suppress explosions, special liquid nitrogen cooling tanks will be prepared to directly soak the batteries in liquid nitrogen to work. At this temperature, hydrogen metal batteries are It is absolutely impossible to explode directly, even if it is to explode, the surrounding liquid nitrogen must be evaporated before it is possible.

However, it is really rare to use hydrogen metal batteries on mobile devices. After all, if the mobile device is not good, there will be situations such as falling, and it will accidentally explode. I don't know what was used for such a dangerous thing before.

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

"Ivrit, I'll leave this to you." I said, pointing to the lead-acid battery.

Inverrit quickly approached, then lay on the ground, and then moved his arms to the position I pointed out. The multifunctional auxiliary arms at the front of the two robotic arms were unfolded, and then removed from the tool Two drill bits were taken out of the box. This kind of drill is not the same as a normal drill, that is, it is hollow and has a hole in the middle like the syringe needle. Of course, the thickness is not the same as that of the syringe. This thing is much thicker than the syringe, with a diameter of more than three millimeters. .

Put the drill bit into a small clip on the tip of the finger, and then Inverite stretched his finger to the position of the battery, and then the drill bit suddenly began to rotate rapidly, and Inverite’s fingers Began to move forward slowly and steadily. The most important thing in this process is to be stable. Ivorite’s fingers cannot move, so that the drilled hole can be perfectly fitted to the drill bit, so that the oil inside will not flow when drilling through the outer shell. When it comes out, the pressure will not be relieved naturally.

If a human is to complete this task, it is estimated that it is difficult to do, because no matter how stable human hands are, there will be slight tremors, but Inverite’s body is purely mechanical. It is as stable as an electronically controlled machine tool. With the slow advancement of the fingers, the drill bit quickly penetrates the pipe shell and then enters the oil seal. However, the drill bit did not stop working, but continued to move forward, and soon came into contact with the internal lead-acid battery. shell. The plastic lead-acid battery shell was quickly penetrated, and the drill bit controlled by Iverite quickly entered the lead-acid battery.

After confirming that the drill bit enters the acid, Ivorite immediately used the other hand to pinch the drill bit to stabilize it, then loosen the clamp on the tip of the finger with the drill bit, and then use the tip of the finger The small clip of the small clamp narrowed the aperture to clamp a small circle of metal in the hole in the middle of the drill bit. Inverite’s fingers began to rotate in the opposite direction and moved back quickly. A thin metal rod with threads was quickly pulled out, and almost the moment the thing was pulled out, there was pale-yellow acid in it. It flows out, but there is very little acid liquid, which obviously cannot discharge the acid liquid in the battery pack.

Of course, we know how much acid is impossible to release only one hole, because the battery itself is sealed, and opening a hole will form a pressure balance, and the acid inside will not flow out by itself. But we have to wait for 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 the batteries is not different. Large, so as to ensure that the bomb will not be detonated prematurely due to a sudden power failure of a certain battery.

After finishing a hole, Ivorite immediately used the auxiliary robotic arm to grab the drill bit that had been penetrated, and then vacated the arm to start drilling again, but this time did not rush to open the channel, just first The hole was drilled without pulling out the metal seal in the middle.

After Ivorite's side is settled, we will start to solve the three more troublesome batteries.

Although this thing is quite troublesome, but also not can think of a way. The method we used is actually the same as before. First, hand the drill bit drilled by Inverite to others to stabilize, and then let Inverite come over to make holes for the three batteries, but you can't directly drill holes in the battery itself. , But use the two drill bits as conductive electrodes to contact the metal contacts, and then start to quickly discharge the battery. In this process, the frost and snow also need to cool the oil inside the oil seal, because the battery discharge will heat up, and the hydrogen battery cannot heat up too high, or it will explode, but the bomb has a countdown, so we can’t discharge it slowly. Speed ​​up the discharge, so that the temperature is difficult to control, and external cooling is necessary.

Fortunately, Shuangxue's temperature control ability is relatively good. Soon we completed the electrode docking of three special batteries, and then one person was responsible for one battery, holding the two drill bits with both hands, and using ourselves The electromagnetic control capability controls the battery to discharge at a verified rate.

After tossing for so long, the number on the counter has become only more than five minutes left, but the previous preparations are completed, and the rest is simple. It took more than three minutes for us to finally let go of most of the lights on those batteries. Although the countdown on the display has only been left for more than one minute, at this time it is already clearly visible on the display. The numbers have become very dim. This is the result of a drop in battery voltage. It is estimated that the bomb battery should be completely dead in more than ten seconds.

The facts are as accurate as our calculations. After ten seconds, the numbers on the bomb suddenly blacked out. Then we heard that an electrical component in the bomb seemed to move a bit, but as a result But I could only hear the click and click, and there was nothing to follow. The sound is actually because a battery was first discharged, which caused the control system in the circuit to think that the circuit was cut off, so it began to prepare to detonate the bomb, but because the remaining batteries were also dead, the power accumulated in the circuit could not activate the ignition at all. The result is that the light heard the relay pa ta pa ta trying to supply power there, but it turned out that it could not be powered at all. After a few jumps, the last bit of electricity from the remaining batteries was finally evaporated. The entire bomb failed completely.

"OK, this thing is okay."

"If you have done it, do you come over and help!" Jingjing, who is responsible for forming the shield, shouted: "Let's hurry up I can’t hold it anymore!"

"Come on, wait a while." I saw the surrounding situation and found that there were people everywhere, so I hurried to gather everyone to narrow down the area and reduce the impact. Then, the bomb was completely dismantled, and the core representing the nuclear bomb was taken out. The other parts were completely ignored, and the stairs moved towards not far away.

The people around had been moving towards us and shooting, but they always felt anxious that we couldn't penetrate our shield, but now they saw that we were moving and they realized that there seemed to be a problem with the previous battle.

The images that the surrounding soldiers originally saw were that a large group of people surrounded us and fired continuously, but because of the protective shield, all the bullets were blocked, even missiles and some special weapons. It's useless. However, when we moved, they found that our position was constantly flickering like a movie cassette for a while from the left to the right, and suddenly reacted with a quick response. The position they saw before was simply false, and they were disturbed by phantoms from the very beginning. Although they all have anti-psychotic devices, Emenes has no way to control their senses, nor can they completely obscure their senses with illusions, but Emenes can fine-tune the pictures they see.

Because of Emenez’s role, the pictures these people see are roughly correct, but in fact, they have always seen our position deviated from the actual situation. These people have been moving before. towards the open fire, only some missed bullets hit the protective cover, otherwise how could the three of them last so long with Jingjing alone? But just now because these people were busy attacking, no one noticed this problem. Now that we moved because of sensory confusion, these people quickly discovered the problem, but unfortunately it was too late.