Strengthen the technology system

Chapter 248 The mileage of graphene batteries

Nie Qiwen said: "Mr. Ding, I have already understood the data of the previous solid-state lithium battery. If a battery of this size is placed in a new high-end car and uses a high-voltage motor, it can only run 300 kilometers! But the graphene battery The capacity has been increased to three times that of solid-state lithium batteries! That is to say, a battery of the same size can run at least 3 kilometers after being connected to a high-voltage motor!"

Today's graphene technology has made new breakthroughs, but this is only a graphene application technology that can be produced on a large scale, and there is still a long way to go from the real limit of graphene batteries.

In fact, the capacity of graphene batteries can be increased, and the current research institute can at least expand to a capacity of 5.But this involves a problem. This kind of high-capacity graphene battery cannot be mass-produced, and the manufacturing cost is also very high.

In this way, it will not be displayed if the capacity of 5 times is used on the tram, and the development is too difficult.

So now take out a part of the graphene technology, this battery with a capacity increased by 3 times can be developed on a large scale, and the equipment and cost will not be too high.

"900 kilometers! This is definitely enough!" After Ding Jie heard this value, he had surpassed the highest mileage previously owned by Wanlang. A tram with strong performance can run 900 kilometers, which is quite enough.

Because the charging speed itself is very fast, this is not a factor that affects the development of the current tram, so there is no need to increase the battery capacity to a higher level, and this level is completely sufficient.

Nie Qiwen continued: "Mr. Ding, in terms of charging speed, the charging speed of this graphene completely crushes the previous solid-state battery. Even if it is a 900-kilometer electric car, it only takes 10 minutes to fully charge! This is not using fast charging. The charging speed of the pile! And in order to ensure the stability of the battery, and considering the problem of the charger, the charging speed is deliberately lowered! Otherwise, it only takes 5 minutes to fully charge!"

Graphene is the material with the strongest conductivity, more than a hundred times stronger than lithium ions, so after it is applied to the battery, the charging speed is directly increased to the extreme.

"It can be fully charged in 10 minutes! Still don't use the charging speed of the fast charging pile! If you use the fast charging pile, how fast can the charging speed be?" Ding Jie began to wonder at this time. If the fast charging pile is used, the voltage will be higher. It must be much faster than this.

Nie Qiwen said: "We have tested that if the current of the fast charging pile is used, it only takes 2 minutes to fully charge the power! This is still considering the problem of battery saturation. To charge the power to 80%, it only takes 1 hour. It can be completed in minutes, if it is fully saturated, it will be slower, it will take 2 minutes!"

In fact, this charging speed can be increased, but in order to ensure the stability of the battery, increasing it too much will cause greater harm to the battery, which is not worthwhile.

"What about the service life of the battery? How much has it reached?" Ding Jie then considered this issue. As long as the battery life is high enough, the value of the battery will also increase.

The life of graphene battery itself is high, but it is currently in the development stage, and it must not reach the limit state.But even so, it is very exciting.

Nie Qiwen was very excited at this time, because the battery life is the highlight of this battery, "Mr. Ding, the battery life is the most amazing! After our many tests, the conclusion of the test is that this The stability of the battery is extremely high! Even if it is charged 5 times a day, it can be charged for 150 years before the battery capacity drops to 80%!"

Graphene is extremely stable and one of the hardest materials in the world, with a fracture strength 100 times that of steel.Under this intensity, even if the number of charging times reaches 3 times a day, it is the kind of state where the battery is almost completely discharged and fully charged to saturation, and it can be charged continuously for 150 years before the battery capacity drops to 80%.

Even if it reaches 80%, this battery can still be used for 50 years before it drops to 60%!
In other words, as long as this battery is used, at least the 5th generation of grandparents and grandchildren do not need to consider replacing the battery.

This is a battery that can be considered a family heirloom!
"150 years! This service life is amazing!" Even though Ding Jie knew the approximate value of the battery, after hearing it again, he still felt very shocked.

"This battery can run 900 kilometers. Even if it runs 100 kilometers per hour, it will take 9 hours to run 900 kilometers. It can run up to 20 kilometers a day. If it is calculated, it is charged twice a day, or It was 3 times!"

If it is charged up to three times a day, the battery can last for at least 150 years before the capacity of the battery drops by 20%. This data is really amazing.

Nie Qiwen said with emotion: "Mr. Ding, this graphene battery technology is simply too important for the development of new energy sources! If all future batteries use this technology, the pollution to the environment will be minimized!"

Environmental pollution is also a very serious factor for the development of new energy batteries. Lithium-ion batteries have a short lifespan. Even if they can be degraded after use, they will pollute the environment a lot.

However, the emergence of a new energy battery will replace the traditional battery, which is a driving force for the development of the country.

"Well! This new energy technology will be widely used in all walks of life in the future!" Ding Jie also very much hopes that new energy batteries can replace traditional batteries.

After talking about the battery life, Nie Qiwen went on to introduce the cost of the battery: "Mr. Ding, the cost of this graphene battery is much higher than the previous solid-state lithium battery! For a battery of this size, if it uses solid-state lithium, it should cost 6 yuan." One piece. But if graphene is used, the cost will directly reach 20 pieces!"

Graphene batteries are much more difficult to manufacture than solid-state lithium, and the equipment is the most advanced in the world, which also requires a lot of money.The combination of many factors has caused the graphene battery to reach 20 yuan.

"This seems to be a problem! But the problem is not too serious!" After thinking about it carefully, Ding Jie felt that the problem was actually not that big.

The graphene battery itself is made for high-end cars, and the overall price is between 40 and 60 yuan. After adding the battery price, it must be higher.

But graphene batteries have an advantage, that is, they have a long service life. The life of a battery is 150 years, and it can be used by five generations of grandparents and grandchildren.

After the user buys a high-end car, the battery can be used forever, and the life of the car ends.If you want to change the car in the middle, you can replace the battery and continue to use it for the next one. It is equivalent to buying more than ten trams, and you don’t need to spend money on the battery. Isn’t it very worthwhile.

(End of this chapter)