While the person and the cat were still in a daze, something happened above their heads.
"Bang"
"Bang"
With two loud thuds, two large iron blocks fell from the sky, one landing a meter to Gao Ang's left and the other half a meter in front of the little cat's head.
"Meow!"
Xiao Hua immediately exploded: "Holy crap, wasn't it enough that you blew me away last time? Now you're going to smash me again?! What the hell?!"
With a leap, it jumped onto the top of the head and gave another cat paw massage.
Gao Ang's lips twitched as he stared speechlessly at the two piles of scrap metal, inwardly cursing Qian Sui to the core:
"Did you know they were going to get into trouble? Why didn't you tell me sooner? Don't you know that Xiaohua and I almost got hit by those two idiots?"
"Sir, I reminded you when they had problems."
Chitose slowly slid out of the inner room. The ambient lights were off, and the alarm had fallen silent.
Fortunately, the commotion wasn't too loud, and the sea breeze was blowing. Gao Ang breathed a sigh of relief and flicked Qian Sui on the head.
After ravaging Gao Feng, Xiao Hua was still not satisfied, so she jumped onto Qian Sui's head and ravaged it as well.
With a "crunch, crunch," he didn't stop this time, and in no time, he had scratched a big hole in the drone above Qian Sui's head.
"Boss Hua, Boss Hua, stop...stop..."
Suddenly, Chisui fell silent.
"Meow." You bastard, you scared me.
After letting out a sigh of relief, Xiao Hua strode over the courtyard wall with an air of indifference and began to observe the night sky.
"Sir, Mr. Hua has broken my circuit..." Qian Sui was on the verge of tears.
Sensing Qian Sui's message, Gao Ang was also overwhelmed. "Let's put that aside for now, what's going on with those two?"
Pointing to the two piles of scrap metal on the ground, Gao Ang immediately shut the two guys up.
It's so noisy and annoying.
"Just like the explosion in the last experiment, the lithium ions were too active and the temperature was too high, which caused the explosion."
"Too active?"
Gao Feng frowned. "Something's not right. We've already diluted the SAR to an extremely low level."
"Send me a copy of the data logs."
After receiving Qian Sui's observation log, Gao Feng compared each entry.
He read through all the log records from yesterday until the eve of the explosion.
The problem has been found.
Everything was normal during the lithium battery charging process, and the activity level of lithium ions was within a controllable range.
When the discharge begins, the activity level of lithium ions is within an acceptable range.
By noon today, the activity level of lithium ions could be said to be on the verge of an anomaly, but it was still below the upper limit of their data model and therefore acceptable.
Just now, the activity level of lithium ions suddenly increased exponentially, completely exceeding the upper limit of the data model.
"The problem should lie in the negative electrode material, that is, the graphite material mixed with SAR."
After rummaging through the two piles of scrap metal for a while, Gao Ang finally found the two batteries.
It was blown to smithereens long ago, but traces of the negative electrode material can still be found.
"Let's go, let's test this material and see what's going on."
...
Looking at the test report issued by Qian Sui, Gao Ang was overjoyed.
"Does this mean that SAR has an assimilation effect on graphite?"
"That's right. Theoretically, that's the only explanation. SAR itself hasn't changed at all. It's just that the molecular structure of the graphite molecules that are close to it seems to have been recast. Some graphite molecules are no longer graphite molecules at all, and their molecular structure is gradually moving closer to the SAR structure."
As she spoke, Qian Sui also synchronized the images that had been processed in the instrument to Gao Ang.
Indeed, the graphite near the SAR has had its molecular structure recast from hexagonal crystal to near decagonal crystal, and the graphite closest to the SAR has been assimilated to dodecagonal crystal.
Gao Feng does not believe this is a coincidence.
First, the second and third sons both crashed at the same time;
He had already modified three SAR lithium batteries, but the eldest, Qian Sui, being cautious, did not go up to fly.
The second and third brothers flew for two days and both of them had this kind of accident happen, with an accident rate of over 60%... This is definitely not a coincidence.
Secondly, the only new component added to the battery variables in drones is SAR (Self-Range Detection).
Both the reactants and the packaging process utilize DJI's internal operating procedures, so theoretically there should be no deviation.
If the problem is with the battery itself, then there would be far too many drone accidents.
Furthermore, the data logs for this incident are virtually identical to those for yesterday's explosion.
This is all due to the excessive activity of lithium ions.
The fundamental factor causing excessive lithium-ion activity is SAR (Specific Absorption Rate).
In conclusion, Gao Ang has made a new inference:
SAR alters the molecular composition of surrounding elements!
August 30th, Cheung Ying Island, sunny;
After moving, I discovered something interesting: SAR can assimilate other substances, but it is currently only effective on graphite. The effects on other substances are unknown and need to be verified.
Assimilation requires certain external conditions, such as a discharge or charge process;
SAR itself is an inanimate object, having detached itself from the main body of the second brother and the others, and has no other energy supply;
During the charging and discharging process of the drone, the movement of lithium ions provides energy, thereby triggering the material nature of SAR: assimilation.
The graphite electrode material thus exhibits localized SAR-like characteristics, meaning that the SAR ratio in the negative electrode material is increased.
Therefore, the cause of this plane crash is exactly the same as yesterday's lithium battery explosion.
This is a good thing, indicating that SAR can be synthesized, or rather, can be mass-produced;
The inference conditions are as follows:
1. SAR (Synthetic Assimilation Agent) is required as a catalyst.
2. External energy is required for catalysis, and it is currently known that electric current is one of the contributing factors;
The following points raise suspicion:
1. The stability of the assimilated material is questionable, and whether it is reversible is unknown;
2. How do the properties of the assimilated material compare to SAR? That remains to be seen.
In the following time, Gao Ang and Qian Sui conducted in-depth discussions and experiments on the above issues.
In three days, they basically solved all the above problems and successfully mass-produced 1000g of the new graphite: NSG.
The manufacturing process is very simple: put the SAR material and graphite into an arc box and connect it to a 220V everyday voltage.
By maintaining a constant voltage and stable current, these graphites will turn into NSG after 10 hours.
Because it is manufactured at 220V, NSG will remain stable inside the drone battery and will not assimilate other graphite.
It's not that assimilation cannot occur, but rather that the assimilation effect will not be so obvious.
For example, metal A is at 100°C and in an environment of 50°C, it transfers heat to metal B, which has poor thermal conductivity.
The temperature of metal B must be between 50 and 100°.
Then, metal B is used to transfer heat to metal C, which has a lower thermal conductivity than metal B, at a temperature of 20°C.
The temperature of metal C should be between 20-50°C.
Similarly, within the voltage limit of drone batteries, even if some graphite is present, it will still be assimilated and will not significantly damage the stability of the lithium battery, thus eliminating the risk of another explosion.
Similarly, because NSG's performance is far superior to graphite but far inferior to SAR, the performance of their newly manufactured lithium-ion batteries has also degraded.
Battery life can only be improved by 102% to 123%, power output by 113% to 131%, and overall performance is reduced by more than two-thirds...
"That's the difference between genuine and pirated products."
They had no choice but to accept this outcome.
Actually, it's already quite good. By simply changing the negative electrode material, the battery performance can be doubled.
What if we change the cathode material and the reactants?
Wouldn't that mean battery performance would increase exponentially, improving by about ten times?
...
While they were urgently pushing for NSG assimilation, a discussion meeting was also taking place in a laboratory at Keika University in Kyoto.
“Xiao Xu, we’ve analyzed the organizations you brought back, and they’re far inferior to the hair you brought last time.”
Old Lin was still holding that large water glass, his disappointment evident in his tone.
"The difference is too great" was already the most tactful way he could say it.
The truth is, they are worlds apart.
If that hair was a steel wire, then the tissues brought back this time were a piece of paper.
"Old Lin, haven't you made any discoveries? Someone has extracted or developed ROG from these tissues."
Xu Qing was still unwilling to give up. She didn't completely trust what Gao Ang said, but was trying to comfort herself: If he could develop it, why couldn't we?
After expending so much effort only to achieve nothing in the end, the blow to morale can be very severe.
"ROG? Is that the new drug that the Health Bureau just launched?"
"That's right, I met that person. Although he didn't say it directly, that was the gist of it."
Old Lin nodded and took a sip of tea. "It's not that we haven't made any discoveries. We have indeed discovered some new molecular structures, but their effects are probably not the same as those of ROG."
"You mean, he lied to us?"
Xu Qing's eyebrows shot up. If that were the case, she would definitely not let that kid off the hook.
"Not necessarily. Logically speaking, such a giant creature should have much stronger body cells and a greater ability to regenerate than other creatures. Otherwise, it would be impossible for them to survive for so long. Perhaps our hardware is insufficient, or there is a problem with our research direction."
At this moment, Old Lin also fell into self-doubt.
He didn't believe there was anywhere else with more complete or advanced equipment than his.
So the problem lies in the direction, but where is the direction?
"Xiao Xu, could you get me a batch of ROG raw materials? I need them."
"Don't worry, Elder Lin, I guarantee I'll complete the mission."
...
A "ding-dong" WeChat message from Lao Wan.
Old Wan? I haven't been in touch with that rich woman for a long time.
"What have you been up to lately? Are you under house arrest again?"
"No, I'm doing scientific research."
Gao Ang was very relaxed in front of Lao Wan, perhaps because there was an internet world between them?
"Scientific research? A chess streamer who does scientific research? Don't be ridiculous, play a couple of games with me."
Scratching his head, Gao Ang didn't know whether to refuse and continue his research, or put down his not-so-busy work and play a few rounds with her.
After glancing at the three brothers still flying overhead, he decided to give himself a break.
"Okay, wait for me a moment."
He needs to move the computer out of the inner room so he can surf the internet in the sun, which will be more comfortable and allow him to keep an eye on the three little ones at the same time.
As he was about to turn off his phone screen, a thought suddenly struck him:
"I'm such a little genius, how come I didn't think of that?"
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