Kwai Town, more than ten years ago was still a small town with five or six industrial zones, there were two or three hundred thousand migrant workers alone, but since Shenzhen repositioned the city function, a large number of factories in Shenzhen have moved to other places, Kwai Town is no exception, the original six industrial zones are only left with one industrial zone, there should have been two hundred factories, and finally there is a company headed by Biya Company, and there are more than a dozen relatively small, no polluting factories.

Biya's factory is surrounded by a large fence, which contains ten factories, as well as three office buildings and research buildings, especially one of the buildings for the research of batteries, and the scientific research equipment in it is considered to be the top in the whole Biya company.

The main task of the Biya branch in Kwai Town is to research the latest lithium batteries, and it is Wang Wei, a well-known battery expert in China, who is in charge of this research.

On the night of the outbreak of the apocalypse, Wang Wei happened to be doing research work in the research building, but he didn't expect the apocalypse to break out, fortunately, unlike the Resident Evil in the movie, just being bitten by a mutant will be infected with the P virus and become a new mutant, those mutants directly eat the humans who are still alive, and the survivors have only two results in the face of the mutants, so alive, then there will be no dead body.

Fortunately, Wang Wei became an awakened person among the evolutionaries and awakened the ability to control metal, and Hong Tao, the bodyguard next to him, was also an evolutionary, but he did not awaken.

In this way, under the leadership of the two evolutionary beings, more than twenty survivors in the factory survived, and after entering the extreme cold and polar night, they quickly entered the sewers under the Biya factory and built a survival base inside.

With Wang Wei's ability to control metal, this underground base can be successfully built, and his bodyguard Hong Tao has formed a five-person escort team, which can be regarded as a defense force.

The underground survival base built by Wang Wei and his family is only more than 300 square meters, but it is still enough to accommodate more than 20 people, and because they have collected enough food from the factory canteen, except for Hong Tao, who will take two guards to hunt mutant beasts every day, everyone else stays in the base honestly.

Wang Wei also built a research room for himself in the base, but the area of this research room is even smaller, only more than 20 square meters, and the equipment in it comes from the research building on the ground.

Why do you have to study batteries at the end of the world? This is because Wang Wei wants to go back to his hometown Xijiang Province, his family is still in Xijiang Province, and on the night of the doomsday, he called back, knowing that his family is still alive, and he must find a way to go back.

It's just that if there is no cart that can withstand the attacks of ordinary mutant monsters in the extreme cold and extreme night, Wang Wei knows that he will not be able to return to Xijiang Province in his life, after all, Shenshi is more than 700 kilometers away from his hometown, and what encounters along the way can be imagined.

Of course, there is no shortage of cars in the Biya branch, Wang Wei knows that there is a special RV in the garage on the ground that is ready to be given to a friend, this RV is his hope, he has been transforming this RV these days, he is very glad that his awakened ability is to control metal, otherwise it is impossible to transform the RV, and the more than 20 survivors he rescued are welders and car repairers, it can be said that he has all the conditions to transform the RV.

However, if the RV wants to drive in such a harsh apocalyptic environment, Wang Wei also needs to invent a new battery, which cannot be the original lithium battery, whether it is in the amount of stored electric energy, or low temperature resistance, if there is no power in the middle of the road, he will only have a dead end.

As for whether it can burn oil, Wang Wei gave up this idea first, mainly in the extremely cold and low temperature of more than minus 70 degrees, whether it is diesel or gasoline is easy to freeze, in order to ensure that the RV can go smoothly to Xijiang Province, then a new type of battery is very necessary.

This kind of battery should be extremely resistant to low temperatures, as well as have high capacity, high energy and high energy density, which can ensure long-term power supply, and can travel thousands of kilometers on a single charge.

Originally, it would be difficult to invent such a battery before the apocalypse, let alone in the apocalypse, but the appearance of the crystal nucleus brought Wang Wei a new inspiration, since the crystal nucleus can be devoured by humans and mutated monsters to become stronger, then the crystal nucleus is not a new type of alternative energy.

Since the crystal nucleus is a new type of energy, does it mean that the crystal nucleus can be used to convert electrical energy, yes, Wang Wei thinks like this, that is, it is completely feasible to use the energy in the crystal nucleus to convert it into electrical energy.

It's just that in order to use the energy in the conversion crystal nucleus, Wang Wei still needs to solve a lot of problems, but he believes that with his own efforts, he can definitely overcome these problems.

Forget to sleep and eat, study problems every day, sleep casually for an hour or half an hour when you are sleepy, eat something when you are hungry, or simply swallow some crystal nuclei to maintain your energy, fortunately, there is a bodyguard Hong Tao to hunt mutant beasts, and lead the team to do things, otherwise Wang Wei's survival team will soon be disbanded.

In the research room, Wang Wei encountered another problem, after thinking about it for a long time, he couldn't think of a solution, he was so irritable that he walked around the research room, and finally could only sit heavily on the chair.

There is a generator in the underground base, so there is a light in the research room, Wang Wei took out a pack of cigarettes from his pocket, took out a cigarette and lit it, inhaled the cigarette hard, and then spit out a smoke ring, he watched the smoke ring quickly turn into ice slag and fall to the ground, it is no wonder, even if the temperature in the base is much higher than on the ground, but there are still more than minus 30 degrees, and the outside rooms are burning with grease made of mutant mice, this grease can burn for a long time, and it is much more resistant to burning than ordinary wood, which is also the best heating material for survivors in the post-apocalyptic world.

It's been almost a month since Blue Star entered the apocalypse, Wang Wei is very worried about his family in his hometown, he doesn't know how they are doing, when he thinks of the cruel apocalyptic environment outside, those survivors kill each other for a bite to eat, or meet some perverted and bloodthirsty survivors, he shuddered at the thought of this.

"No, wife, their luck won't be so bad."

His wife likes to read apocalyptic online novels very much, and likes to watch apocalyptic movies, Wang Wei believes that his wife can survive well in the apocalypse, but with the drag of children and the elderly, he is worried that his wife will not be able to hold on.

It's just that the network and communication stopped for a few days after the end of the day, and Wang Wei couldn't contact his wife at all, even if he wanted to know the information about his hometown, there was no way to do it.

"Brother Wang, I'm back."

Just as Wang Wei was thinking wildly, his bodyguard Hong Tao walked into the room.

Hong Tao is tall and majestic, like a bear, he is not so strong before the apocalypse, he has just become an evolutionary, and he also swallows crystal nuclei every day to become stronger, his body has changed a lot, but the other people in the base are not surprised by his situation, the awakened have appeared more unscientific, not to mention that the body has become taller and stronger.