There was no noise, no noise, and the venue was eerily quiet. Pen, fun, pavilion www. biquge。 info

Graphene batteries, this is the scientist's idea. When graphene was first discovered, its unique electrical conductivity expanded into many associations about the use of electrical energy.

But, it's just an assumption.

LH came up with the preparation method of graphene, OK, everyone silently accepted it, after all, LH has always been very strong.

But now you actually took out the battery directly... Come on, that's really not the case with the development of technology! What about one step at a time?

Lotus didn't care about the silence of the crowd, gave the venue twenty seconds to calm down, and continued: "Electric energy, which is widely used in various fields such as power, lighting, chemistry, textiles, communications, and broadcasting, is the main driving force for the development of science and technology and economic leap. ”

"Electric cars, electric cars, electric buses... These electric-powered products are quietly appearing around us. ”

As the words fell, a red sports car appeared on the screen.

"I'm sure quite a few people know about it, have seen it, and even used it." Lotus smiled, "This is a classic of electric cars from the 90s of the last century, EV1." ”

"It has a range of 144 kilometers on a full charge." The screen shows how short 144 kilometers really is.

"The battery pack is 533 kilograms." The battery pack on the screen, which weighs 1,000 pounds, is embarrassing.

"It takes 15 hours to charge." The picture shows a man waiting desperately for the sports car to be fully charged.

"Of course, someone might say to me. Hey, Eric, this is a 10-year-old product. Lotus shrugged a little casually, "Okay, let's take a look at the better guys." ”

The screen flickered, and a black supercar appeared in the frame.

"Tesla.roadster," Lotus pinched the handlebar and turned to look at the screen with the crowd, "Cool big guy, Tesla's unique lithium battery matrix technology is also very distinctive." ”

"Let's see, oh, 393 kilometers of range, a 400 kg battery matrix, 50 miles per hour of charging at 120v."

"Very good data." Lotus looked around at everyone and praised: "At least it is a lot better than ten years ago." ”

The crowd didn't know how to react. Tesla naturally knows that the Roadster was just delivered in February today, and this time has also occupied a lot of media pages. Strictly speaking, an electric sports car with a range of almost 400 kilometers is already quite good, at least until today, it is definitely a hegemonic product!

But now, they don't dare to say anything. A pair of eyes stared at the man on the stage, waiting for him to unveil the mystery of the graphene battery.

"Lithium-ion batteries." "According to calculations, the energy density is 250wh/kg, the bulk density is 621wh/l, and the power density is 1100w/kg, which is the upper limit of what can be achieved." ”

"There is a saying," his gaze slid over the crowd, "if the energy density of the battery can reach 300~400wh/kg, it has the capital to compete with traditional fuel locomotives for cruising range." ”

"As for the graphene battery, it has been estimated that its energy density can reach 600wh/kg."

"But it's a pity." Lotus shook his head slightly, and he announced loudly in the uneasy eyes of everyone: "The graphene battery developed by our LH has an energy density of up to 30.25kWh/kg. ”

The huge picture is interrupted by the middle, on the left is the ordinary lithium battery and its data, and on the right is the gold-veined black graphene battery and its amazing data comparison.

The venue cooled down instantly, and then, the suppressed emotions completely detonated.

"My God! This.. Is this true? ”

“30.25kwh！！”

"I heard you right?! 30,000 watt-hours? ”

“eric！ light＆hope！ ”

Loud and cheerful, cheering, followed by thunderous applause.

All the reporters couldn't help but stand up, they couldn't help but get excited, such a battery is enough to change the world!

The two-kilogram graphene battery storage is equivalent to the eight-hundred-kilogram lithium battery matrix developed by Tesla!

A five-kilogram graphene battery is enough to cope with the electricity of an average household for a month!

And, if you charge it with a high-power capacitor, "it can reach more than 98% of its rated capacity in 10 seconds," a statistic appears on the screen again. ”

The screams are incessant, and the atmosphere is almost explosive! Although high-power base stations are not widespread now, it is because there are no graphene batteries! They can totally imagine, three years, no, two years from now! At that time, most of the gas stations will be replaced by charging stations!

With a faint smile on the corner of Lotus Flower's mouth, he glanced at the energy giants with ugly faces and bowed slightly.

Technological innovation is inevitable, but the dominant group does not change much. Graphene batteries will inevitably be used in all walks of life, first and foremost in the automotive field.

LH has graphene batteries, and naturally also has graphene supercapacitors. This market is too big, and it is impossible for lotus flowers to be eaten even if they are pretentious. How to spread capacitor base stations all over the world depends on their ability.

"We know that when it comes to batteries, their longevity is also a decisive factor." Again, the data resurfaced, "300 charges or more than three years, the efficiency of graphene batteries in all aspects will be lost by 3%. Five years later it was close to 5%. However, maintenance is simple and costly. Therefore, within ten years, the graphene battery developed by LH will not lose more than 3% of its energy. ”

Decade! 3%！！ Everyone in the venue didn't know how to express their excitement at all, and this was definitely an unprecedented breakthrough!!

"As for the power density . . . Well, I gotta say, I don't like to drive fast. "With a 570kw motor, a car equipped with a graphene battery can accelerate to 100 kilometers in 2.1 seconds." Of course, that's not its limit. I believe that more and more motors suitable for graphene batteries will appear in the future. ”

100 km 2.1s! It's not the limit yet! Coupled with the amazing power storage, if this continues, the roar of F1 will be eliminated sooner or later!

"The last item is the safety of the battery." Lotus spread her hands a little comically, "The outer material of the graphene battery is made of graphene and nickel-chromium-titanium alloy polymer. Believe me, if an accident happens, then it must be the safest. (To be continued.) )