Boss Jia was mad at Wang Chuanfu.

This Wang Chuanfu is simply stunned, doesn't he understand what is called the general trend and what is the inevitability of the future?

This guy actually planned to use lead-acid batteries as a source for electric vehicles, and this kid completely came back to life.

Although the lead-acid battery is indeed the mainstream now, because the technology is very mature, and the production cost is low, and the most important thing is that the safety is extremely high, anyway, even in this era, it is rare to hear the news of the lead-acid battery catching fire.

Looking at it this way, lead-acid batteries seem to be very suitable for the power of electric vehicles, but even Boss Jia, who is in the future mixed P station, knows that ternary lithium batteries, as well as more advanced lithium iron batteries in the future, are the mainstream power sources of electric vehicles, and lead-acid batteries are destined to be eliminated.

Because just like an electric motor crushes a gasoline engine, the performance of lithium batteries also crushes lead-acid batteries.

First of all, the lead-acid battery has only 13 of the lithium battery in terms of energy density, that is, under the goal of 300 kilometers of the same range, the volume and weight of the lead-acid battery are three times that of the lithium battery, so that half of the volume and weight of an electric car have to be used to place the battery.

Secondly, the life of lead-acid batteries is far inferior to lithium batteries, and the number of charges is only about 13 of lithium batteries.

But lithium batteries can last up to 10 years.

Finally, and most importantly, the charging speed of lead-acid batteries is extremely slow, before Wang Chuanfu said that it takes 25 hours to charge, which refers to the charging technology of lithium batteries.

If it is a lead-acid battery, the time is more than 40 hours.

And now the charging and discharging technology of lithium batteries is only in the initial stage of research and development, after all, lithium batteries have only been developed for five years, and with the invention of various fast charging technologies in the future, the charging time of lithium batteries can be compressed to less than one hour.

However, the lead-acid battery is compressed to about 20 hours at most to reach the limit, which is limited by the battery material, and there is no way to overcome it.

Therefore, if Wang Chuanfu uses lead-acid batteries to build electric vehicles, then such electric vehicles will inevitably become huge in size and weight, with extremely short battery life and extremely long charging time.

In the actual use of such an electric car, it is basically an ancestor, who sees that his car has to change the battery every three years, and then drive for 4 hours, charge for 40 hours, I am afraid that it will not be directly angry to death.

Otherwise, do you really think that all the automobile companies in the world are short-sighted ghosts, they can't see that electric vehicles are the trend of the future industry, and they still cling to fuel vehicles?

In fact, as long as these automobile companies are willing, they can also make electric vehicles land in three years at most, but no one will be willing to buy such a car when it lands, and the market prospect is similar to that of the universe, pitch black, for billions of years.

Not to mention that it is now 98 years, even in 2020, there are still many car owners in China who do not look down on electric vehicles at all, and are full of range anxiety and charging anxiety for electric vehicles.

Boss Jia's original purpose was to let BYD start to do the accumulation of lithium batteries and lithium iron batteries, as well as electric vehicle technology, and it was too early to really want to make electric vehicles online.

But now Wang Chuanfu is good, he directly drove history backwards, and actually ran back to use lead-acid batteries to build electric cars, even if this kind of car is built, it will definitely not be sold.

"Chairman, listen to me, I know that lithium iron batteries are the future, but lead-acid batteries still have advantages. First of all, the cost is cheap, although the energy density of lithium batteries is three times that of lead-acid batteries, but the production cost of lithium batteries is more than ten times that of lead-acid batteries. ”

[PS: It is the cost of the present, and the cost of lithium batteries in the future will be about three times higher at most. 】

"Secondly, the stability and safety of lead-acid batteries are unparalleled, and our latest development of a new generation of lead-acid batteries is 10 times more stable than the old model. I'm here to give you a package ticket, even if 1 million electric vehicles, after 10 years of driving, at most only 2-3 electric vehicles will have the problem of spontaneous combustion! ”

"And we also have the technology to control the speed of spontaneous combustion of the battery, so as to ensure that the driver has enough time to escape from the spontaneously combusting car, and there will be no danger to life!"

"In addition, we can design an automatic fire extinguishing device to extinguish the flames in the battery compartment in the first place."

"Finally, the recyclability of lead-acid batteries is also better, and we are developing a recycling technology for lead-acid batteries, which can recycle 70% of the raw materials in lead-acid batteries and use them to remake new batteries, further reducing the manufacturing cost and recycling cost of batteries. On the contrary, lithium batteries are difficult to recycle after they have reached the end of their lifespan, at least with current technology! ”

"I don't want to hear any of your reasons!" Boss Jia shook his head, "I admit that what you said may be advantages, but if the most critical problems are not solved, all the advantages are meaningless!" ”

"I know, the problem you are talking about is the charging problem of lead-acid batteries!" Wang Chuanfu nodded.

"Yes, do you want to tell me that you Wang Chuanfu got the Einsteinto dream, and the fast charging method of the lead-acid battery that people told you in the dream can shorten the charging time of the lead-acid battery to less than an hour?" Boss Jia said angrily.

"Hehe, no, absolutely not, even if I want to dream, I dream of Tesla, what is Einstein doing in my dream, he doesn't care about electricity!" Wang Chuanfu smiled, "And I also know that the fast charging of lead-acid batteries is difficult, unless God changes the characteristics of lead-acid batteries, otherwise about 20 hours is the limit of lead-acid batteries, even if I don't want to break this limit in my life!" ”

"If you know this, do you still ...... No, you kid, do you have another idea to solve this problem? Boss Jia was halfway through his words, and suddenly found that he seemed to be speaking according to those old stubborn scripts, and Wang Chuanfu took the protagonist's script and was digging a pit waiting for him to jump in!

But then again, if Wang Chuanfu really has a way to solve the problem of charging, then the lead-acid battery is not without value!

But the question is, how does Wang Chuanfu solve the problem of charging speed?

"Chairman, my idea is very simple, since the charging speed is difficult to break through, then we simply don't study how to improve the charging speed, and even our electric vehicles don't need to be charged!" Wang Chuanfu said his thoughts loudly: "Let's not charge, let's just replace the battery!! ”