The first of the main parts of electric vehicles is the battery, which is the main factor that determines the length of mileage.

At present, there are several types of batteries on the market, lead-acid batteries, nickel-metal hydride batteries and lithium-ion batteries.

Lead-acid batteries are mainly used in electric bicycles now, and 95% of electric bicycles are used in the streets and alleys.

NiMH batteries are mainly used in hybrid vehicles, and brands such as Ford, Honda, and Chevrolet use this type of battery.

Finally, there is the rising star lithium-ion battery, which is also the main source of energy for pure electric vehicles on the market today.

One of the ones that will be carried forward in the market is the electric vehicle with a license plate, and of course, there are many domestic brands following suit.

At this stage, the hottest is a small car in Wuling, which uses lithium batteries.

At present, the most commonly used lithium battery with the largest number of holdings is also divided into two types: lithium iron phosphate battery and ternary lithium battery.

So far, these two batteries have not been divided into high and low, and it can only be said that they have their own advantages and disadvantages.

The most important batteries are these three types, and now there is a graphene concept battery on the market.

But this kind of battery is really just a concept now, and what is widely said to be a graphene battery on the market should be called a black gold battery.

What's the matter with black gold batteries? In fact, the cathode material is an alloy with graphene, not a pure graphene battery, but only a little graphene additive added to the cathode on the basis of the lead-acid battery.

The real graphene battery is actually a lithium battery, but it exists as a lithium battery as an anode material in the battery.

Thinking of these kinds of batteries, he, of course, had to choose a direction for the main raiders,

The most suitable for using lithium batteries in electric vehicles is the main problem he has to solve is the capacity of lithium batteries, and at the same time, he must also take into account the discharge current of large currents.

Of course, it is necessary to solve the problem of its complete charge and discharge times, and the complete charge and discharge times of the general ternary lithium battery can reach about 800 times.

When it reaches 800, its battery capacity may become smaller, becoming only 80% of its original capacity.

The battery used in electric vehicles has to face the release of high current, which makes it have to undergo a more severe test.

Therefore, after he chose lithium battery as his research direction, the three problems he had to solve were capacity, high-current discharge, and the number of charge and discharge.

With the direction everything is easy to say, don't forget that he is a man with an eye for analysis,

In the following time, he began to solve three problems, in fact, it was three problems, but in fact, it was only two problems.

As long as the anode material is replaced with pure graphene material in lithium batteries, the two problems of battery capacity and high-current discharge will be solved.

And after this problem is solved, it is the problem that the unique charging and discharging times of graphene lithium batteries are not high.

This night, three years have passed, and his research on graphene materials has just begun.

During the day the next day, I ran to the company early in the morning, and pulled Liu Xiaodong to run out.

And Liu Xiaodong was confused, and he didn't know what was going on, so he was dragged to the company's parking lot.

When he finally took a breath and just wanted to ask something, he was stuffed by Li Zhenhua into the car he had changed to Shelby GT500 by pressing his head.

Then, before he could react, and before the seat belt was fastened, he heard the roar of his car's engine.

The 5.2L, V8 engine and the unique production of the supercharged engine reached his ears, and he was so frightened that the inconspicuous flesh on his face trembled, and he hurriedly fastened the seat belt.

Feeling the feeling of pushing back, my whole person was pressed against the seat.

And Li Zhenhua used this kind of catapult start for the first time in reality, and the car quickly left the factory and drove south.

Liu Xiaodong, who finally relieved himself, took a deep breath before speaking.

"Brother, you slow down, I haven't lived enough, you can't let Wang Mei be widowed at a young age,

I don't want someone to sleep with my wife, use my property, and beat my baby in the future.

Calm down, slow down, slow down!

Hey, yes, that's right, why are you driving so fast? ”

Li Zhenhua, who was driving fast, never found out that this fat man still had some chatter attributes, if he hadn't driven fast this time, he really hadn't forced out his attributes.

His speed also slowed down when Liu Xiaodong spoke.

"Fatty, let's go buy a car, we have to buy a lot of cars a day today, it's really not good if you don't hurry up!

After all, there are a lot of shops to visit! ”

After his words were finished, Liu Xiaodong, who was already very confused, was even more confused at the moment.

'Is his old Poussin finally willing to change?' I got the hang of it, and I actually wanted to buy a car,

Alas? No, I have to visit a lot of stores, this is not taking money as money! ’

Thinking like this in his heart, Liu Xiaodong asked him.

"Is this the attribute of finally can't help but be your nouveau riche? What car are you going to buy?

I'll give you a staff officer, in fact, just buy a car that can block your face.

And you see that when I usually go out, don't these GT500s also fall into dust at home? Or four laps long-term. ”

As soon as the two of them spoke, the car was about to leave the land of calligraphy and painting at a very high speed.

"I'm not buying a car for myself this time, I'm going to buy scientific research materials, I just checked it when I had dinner in the morning,

The car in the F7 Motor City is still quite complete, and the young lady over there has a very good voice.

Especially the sales crown, let's go there and hang out.

Strive to buy all the pure electric vehicles today and get them back! ”

At this time, Liu Xiaodong finally knew what he meant, he really planned to buy a car, and the purchase should still be used for dismantling and research.

It's just that those things in the middle are a little interesting.,What F7 Car City?,Miss Qiao, this fat man doesn't understand at all!

"I've only been talking to you for a few days, and you're starting to get it? That's fast!

But didn't we say we were going to develop electric motorcycles? Why do you want to buy so many new energy vehicles! ”

"Hey, it's pretty much the same, it's all the same, there is not much reference value for electric motorcycles on the market,

There are only two references, one don't touch my big pedal, and one Harley's street car, but it's not easy to do in China, so let's go to the four-wheeled car first.

When I study this thing thoroughly, is an electric motorcycle still a thing?

Peace of mind! ”

The two chatted as they drove towards their destination.

The sixty-kilometer journey took him less than half an hour to reach the place.

Arriving at the destination, a Shelby drove into the car city, which was still very eye-catching, and the salespeople in the car city all looked at the people in the car outside, their eyes shining.

As soon as the two entered the exhibition hall of the car city, the sales lady who was flamboyant and wore a slim suit stood in front of the two.

At the same time, he bent down and bowed, and the scene almost made the little stick out of control, especially when the deep V neckline bowed with a leak.

The two of them were dazzled as if they had walked into the scene of choosing a concubine.

On the other side, Liu Xiaodong poked his waist and whispered something in his ear.

"I know that when I came to Shuicheng to play, why did one of the technicians I often make appointments disappear, and it turned out that they all came to Checheng as sales.

This can be regarded as a way out, it is all sales, but it used to sell itself, and now it is just selling cars with itself! ”

Liu Xiaodong's words also made him understand something instantly, and nodded quietly, it seems that this plate is an acquaintance seen in the sale.

Then the two of them chose the best one at the scene of choosing a concubine and let her take her around the exhibition hall.

And this chosen one is actually not at peace in his heart, two people, only she was chosen,

I don't know what it will be like to be tossed this night, but when I think of the commission for selling cars, I am ruthless.

I can't give up my body and can't sell my car.

In the following time, Li Zhenhua said that the model, the sales took the two of them to see, what can't stop the car Madou 3, BYD's Han, etc., and finally watched Gameboy.

But for this sales, she regretted it a little, because these two people have not said to buy any cars so far, and all the cars they see are new energy, so she can't get much commission if she sells one like this!

But since this is already the case, I can only continue to introduce it head-on.

When I walked around this circle and returned to the front desk of the exhibition hall, the sales lady's legs were almost thin, but I didn't see these two people buying a car.

Just as she was about to speak, she listened to the thin man opposite.

"Miss, may I ask if you remember all the models I just saw?"

The young lady looked at him with some confusion, but nodded anyway.

"Okay, you go to your manager to prepare and contract, I want all the cars I've seen before."

As soon as he said this, he immediately changed the expression on this young lady's face, this is a big surprise.

This is much more than selling a luxury car, how many cars have the other party seen just now?

Ten or twenty? The young lady arranged the two of them, and then ran quickly to the manager's office.

The orders for so many vehicles also made the manager here pay attention to it, and trotted all the way to the two.

Of course, the young lady just now also followed behind, Li Zhenhua looked at the manager who nodded opposite, and the sales who was throwing eyebrows at him behind him, and suddenly felt that something was going to happen behind him.

He struggled in his mind for a long time, and then said to Liu Xiaodong on the side.

"Fatty, I'll leave the rest to you, you look at it, our company's department is short of cars or something, so let's take advantage of today's purchase of it.

The cars I ordered, the sales are counted on the sales just now, and you have the final say in the back.

I won't stay here any longer, I'll drive one of them out first. ”

After saying this, he walked directly to the exhibition hall.