Is it reliable to charge a 1-minute battery life of 800 kilometers?

A few days ago, foreign media published a news one after another, electric car brand Fisker applied for a patent of a solid lithium battery, which has the highest range of 800 kilometers, charging only for one minute. Everyone is boiling up, because it is a solution for the two major problems of battery life and fast charge.

FOX also asked Fisker himself to appear on the show. Fisker says it will show off the technology at CES in January, with production not expected until 2023, when it will cost a third as much as lithium-ion batteries.

In the middle of this year, the Fisker released its next generation Emotion model, which USES a lithium battery with a range of 640 kilometers and 200 kilometers in nine minutes on a charge.

A little earlier last year, Fisker debuted his Emotion photo, where butterflies at sunset wowed the silhouette of a car opening the door. I was talking about a graphene battery that had a range of 640 kilometers -- the first luxury electric car ever to have a range of more than 480 kilometers. Because at that time, the Tesla ModelS100D was not yet available, and the 90D had a range of 450km. Looking back, Fisker was a bit bumpy around the battery route. Graphene, lithium battery, solid state battery. The car hasn't been mass-produced yet, and we've changed three of them.

If it were not for Roadster's 1,000km range, Fisker could play the "longest range in history" this time.

But with a one-minute charge and a range of 800 kilometers, it sounds pretty impressive.

Fisker's note notes that solid-state batteries have many limitations, such as low power and low rate capabilities, caused by layered electrode structures and low temperatures. Fisker's charging technology USES a three-dimensional electrode structure, which makes the surface area of the electrode 25 times larger than that of a flat film. This structure can adapt to different voltage and shape factors, and its energy density is 2.5 times that of lithium batteries.

Fisker's solid-state battery program is led by the founder of Dyson's solid-state battery company, Sakti3. In 2015, Sakti3 claimed to have developed a new solid-state battery that costs as little as $100 per watt hour and has a high energy density of 1,000 watts. That's close to what Fisker now claims is battery life and cost.

Sakti3 has never released the details of its solid-state battery technology, and it is unclear what anode materials it USES for its batteries with an energy density of more than 1,000 watts per hour. So secretive, the New York times wrote in April that Dyson was the apple of the home appliance world. Solid-state batteries are the ultimate choice?

Toyota has been working on solid-state batteries for more than two decades and holds a number of patents in the field. More than two decades later, in 1997, Toyota began experimenting with pure electric and hybrid cars. I wonder if there's anything Toyota doesn't do.

The news that Fisker's solid-state battery is charged for one minute makes people more curious. Is the day that solid-state lithium battery beats three-state lithium battery not far away? It's like lithium triphosphate batteries replacing lithium iron phosphate batteries. Right?

Well, that's true.

The basic development direction for lithium-ion batteries is high energy density: Japan and China plan to increase the energy density of power cells to 500Wh/kg by 2030, while the United States aims to increase it to 350Wh/kg by 2020. But Tesla's 21,700 battery is on the verge of achieving that goal, and it is widely felt that the potential of ternary lithium batteries has been tapped and it is time to find better battery solutions.

According to the judgment of professionals, solid state battery is an inevitable direction for lithium battery to develop towards high energy density.

First, from the perspective of energy density, the limit of liquid electrolyte battery cannot be higher than 500Wh/kg, while the current energy density of all-solid lithium battery is about 400Wh/kg, and the estimated maximum potential value is 900Wh/ kg.

Second, in terms of safety, solid state batteries are more stable because the electrolyte is solid state, unlike ternary lithium batteries, which are less safe.

But solid-state batteries are slow to charge and expensive. So, the Fisker charging efficiency is so amazing and cheap, it really sounds tempting.

According to their vague language, they had a great innovation in materials and process manufacturing, but they did not know what this innovation was.

In the past six months, solid-state batteries have gained more and more popularity, with Toyota supporting solid-state batteries and Tesla representing ternary lithium batteries. According to academic research, solid state lithium battery is actually the inevitable evolution direction of lithium battery. At present, BMW, Toyota, Hyundai, apple, Bosch and other enterprises have layout in the field of solid state battery.

After Fisker's announcement, there was some suspicion in the industry. After all, it is experimental data,which far from industrial application, and the patent is still in the application stage. Others argue that charging in a minute requires huge cables and extremely high instantaneous currents. Fisker was very brave when he bet on graphene batteries before, but he finally hit his face. So this time everyone  ask a question mark.

But solid-state batteries are not the ultimate BOSS. There are also solar-powered batteries, Audi says.

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