The first major parts of electric vehicles are the batteries, which determine the length of mileage.

There are currently several types of batteries on the market, including lead-acid batteries, nickel-hydrogen batteries and lithium-ion batteries.

Lead-acid batteries are mainly used on current electric bicycles. 95% of the electric bicycles run on the streets and alleys are used.

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

Finally, there are the rising lithium-ion batteries, which are also the main source of energy for pure electric vehicles on the market.

One of the models that have been promoted on the market is that they cannot stop the license plate electric vehicles. Of course, many domestic brands have followed suit.

The most popular one at this stage is a small car, Wuling, which uses lithium batteries.

The most commonly used lithium batteries nowadays are divided into lithium iron phosphate batteries and ternary lithium batteries.

These two batteries have not been distinguished so far, so we can only say that they have their own advantages and disadvantages.

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

But as the old saying goes, this kind of battery is really just a concept. What is widely seen on the market is called graphene batteries, and it should be called black gold batteries.

What is the black gold battery? In fact, it is the alloy of graphene added to the positive electrode material, rather than a pure graphene battery. Just based on the lead-acid battery, a little graphene additive is added to the positive electrode.

A real graphene battery is actually a lithium battery, but it is a lithium battery that exists as a negative electrode material in the battery.

Thinking of these types of batteries, of course he had to choose a main guide.

The most suitable one for using electric vehicles is lithium batteries. The main problem he needs to solve is the capacity of lithium batteries, and also takes into account the discharge current of large currents.

Of course, we also need to solve the problem of the number of complete charge and discharge times. The total charge and discharge times of general ternary lithium batteries can reach about 800 times.

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

The batteries used in electric vehicles face the release of large currents, which makes them go through a more severe test.

So after he chose lithium batteries as the research direction, the three problems he had to solve were capacity, high current discharge and charge and discharge times.

With the direction, everything has become easier to say. Don’t forget that he is a man with the eye of analysis.

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

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

After solving this problem, it is the problem that the number of charge and discharge times of graphene lithium batteries is not high.

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

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

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

When he finally took a breath, he was about to ask something, and Li Zhenhua pressed his head and stuffed it into the car that he had changed to Shelby GT500.

Then before he could react, he had not tied his seat belt and heard the roar of his car's engine.

The 5.2l and v8 engine were also transmitted to his ears through mechanical supercharger, which scared him so much that his flesh was not obvious on his face and he was tiring up his seat belt in a hurry.

Feeling the feeling of pushing the back, I was pressed on the seat.

This is the first time Li Zhenhua used this kind of ejection in reality. The car quickly left the factory and drove towards the south.

Liu Xiaodong, who finally recovered, took a deep breath and then spoke.

"Brother, please click slowly. I haven't lived enough yet. You can't let Wang Mei be a widow at a young age.

I don't want anyone to fall asleep in the future. My wife uses my property and beat my baby.

Calm down, slow down, slower, slower!

Alas, right, that's right, why do you drive so fast?"

Li Zhenhua, who was driving fast, never noticed that this fat man was actually a bit talkative. If he hadn't driven the express train this time, he would have never forced out his attributes.

His speed also dropped when Liu Xiaodong spoke.

"Fatty, we're going to buy a car. Today I have to buy a lot of cars. It's really not possible if I don't hurry up!

After all, there are quite a few shops to visit!”

After he said that, Liu Xiaodong, who was already confused, became even more confused at this moment.

‘He was finally willing to change the old Poussan? He was so excited that he actually wanted to buy a car.

Alas? No, I have to visit many stores, I don’t use it as a money!’

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

"Is this the attribute of your nouveau riche finally? What car are you planning to buy?

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

And you see, when I go out, don’t the gt500 be kept at home and fall into dust? It’s still four circles in the long run.”

As the two of them talked, the car was about to leave the hometown of calligraphy and painting at a very high speed.

"I didn't buy a car for myself this time, I went to buy scientific research materials. I just checked it when I was having dinner in the morning.

The f7 Motor City car is quite complete, and the young lady over there is quite good voice.

Especially the sales crown, we went there to stroll.

Try to buy all the pure electric cars today and get them back!”

At this time, Liu Xiaodong finally knew what he meant. He really planned to buy a car, and the one he bought should be used for disassembly and research.

But the things mentioned in the middle are a bit interesting, such as F7 Car City, the fat man with the surname Qiao, said he couldn't understand at all!

"I've just talked to you for a few days, and you're starting to do it now? It's quite fast!

But didn’t we say we wanted to develop electric motorcycles? Why did we have to buy so many new energy vehicles?”

"Hi, it's pretty much the same, it's almost the same, the electric motorcycles on the market don't have much reference value,

There are only two that are of reference value. One is not touching my big pedal and the other is Harley's street car. But it is not easy to do in China, so let's try hard toward the four-wheeled car first.

After I have studied this thing thoroughly, is electric motorcycles still a matter?

Reassured!"

The two of them were chatting and heading towards their destination.

The sixty kilometers of distance was driven by him, and it took less than half an hour to arrive.

When we arrived at the destination, a Shelby drove into the car city, which was still very eye-catching. The salesmen in the car city were all staring at the people in the car outside, their eyes shining.

As soon as the two entered the exhibition hall of the car city, the shiny sales lady stood in front of the two in a slim suit.

At the same time, bent down and bowed, and the scene almost made the little stick out of control, especially when the deep V neckline was bowed without leaking.

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

Liu Xiaodong, who was on the side, poked his waist and said in a low voice in his ear.

"I know why when I came to Water City to play, why did a technician I often had appointments missing? It turned out that I came to Checheng as a salesperson.

This is also a way out, and they are all selling, but in the past, they used to sell themselves, but now they are selling cars by themselves!"

Liu Xiaodong's words also made him understand something in an instant, and he nodded calmly. It seemed that he had seen an acquaintance in the sales of this plate.

Then the two of them selected the best one at the site of the concubine selection and asked her to take her to walk in the exhibition hall.

The person who was chosen was actually not calm. The two of them chose her only.

I don't know what I had to be tossed this night, but when I thought of the commission for selling a car, I made up my mind.

I can't bear to leave my body and can't sell my car.

In the following time, Li Zhenhua said that the car model was so the salesperson took them to see it, such as Madou 3, Byd's man, etc., and finally, he even looked at the gameboy.

But for this salesperson, she regretted it because these two people have not said to buy any car so far, and the cars they see are all new energy sources. She won’t get much commission if she sells one!

But since this is already the case, I can only continue to introduce it with a tough bullet.

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

Just as she was about to speak, she heard the thin man opposite her talk.

"Miss, do you remember all the models I just saw?"

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

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

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

This is much more profitable than selling a luxury car. How many cars are there just now?

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

So many vehicle orders also made the manager here pay attention to it and jogged all the way to the two of them.

Of course, the young lady just now followed behind. Li Zhenhua looked at the manager who nodded and bowed, and the salesman behind him who was throwing his eyebrows at him, and suddenly felt something was going to happen later.

He struggled for a long time in his mind, and then said to Liu Xiaodong beside him.

"Fatty, let me leave the next thing to you. You can do it. Our company's department lacks cars and so on. Let's buy them together today.

The sales of the cars I ordered are calculated on the sales just now, and you have the final say later.

I won’t stay here for too long, I’ll take one of them first.”
Chapter completed!