A solid state battery with a range of 800 kilometers in one minute of charging is reliable

A few days ago, foreign media issued a message that the electric car brand Fisker applied for a patent for a solid-state lithium battery with a maximum duration of 800 kilometers and a charge of only one minute. Everyone boiled up and solved the two major problems of endurance and fast charging.

FOX also invited Fisker himself to the show. Fisker said that CES in January will show the technology to the public. The actual mass production is expected to be until 2023, when the price will be only one-third of that of lithium batteries.

It was only in the middle of this year that Fisker launched the next generation of Emotion models, which use lithium batteries and have a range of 640 kilometers and can travel 200 kilometers in 9 minutes.

A little earlier, last year, Fisker launched the Emotion official map, and the butterfly's silhouette on the open body was amazing at sunset. It was the use of graphene batteries, which lasted 640 kilometers -- the first luxury electric car in history that lasted more than 480 kilometers. Because Tesla's Model S100D was not yet out at that time, the 90D was 450 kilometers. Looking back, Fisker is also very bumpy around the battery route. Graphene → lithium battery → Solid Battery, The car has not yet been mass-produced. The plan has been replaced by three, and the peer who has continuously increased the energy density of the battery has been forced to produce more and more exaggerated data.

Had it not been for the 1,000 km voyage of the Roadster, Fisker could have played the "longest voyage in history" card this time.

But the charge for a minute and 800 miles still sounds impressive.

Fisker's note mentioned that solid-state batteries have many restrictions, such as low power and low rate capabilities, which are 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 the area of the planar film. This structure can adapt to different voltage and shape factors, and the energy density is 2.5 times that of a lithium battery.

Fisker's solid state battery project leader is the founder of Sakti3, a solid state battery company owned by Dyson. In 2015, Sakti3 claimed to have developed a new solid-state battery with a cost of as little as $100 per watt hour and an energy density of as much as 1,000 watts. This is similar to the current Fisker's battery life and cost.

Sakti3 has never released details of its solid-state battery technology. It is unclear what kind of positive material they use for batteries with energy density exceeding 1,000 watts. Because of the mystery, the New York era wrote a report in April. Shuodaisen is simply an Apple in the home appliance world. Solid state batteries are the ultimate option?

It has been reported that Toyota has studied solid-state batteries for more than 20 years and has a large number of patents in this field. For more than 20 years, in 1997, Toyota began to try pure electricity and mixing. I wonder if there's anything Toyota doesn't do.

The news that Fisker's solid-state battery will be recharged for one minute is even more full of speculation. Is it not too long before the solid-state battery ternary lithium battery defeats the ternary lithium battery? Like a lithium trioxide battery gradually replacing a lithium iron phosphate battery?

Well, it seems that way.

The basic direction of development of lithium-ion batteries is high energy density: Japan and China plan to increase the energy density of the power battery core to 500 Wh / kg by 2030, while the United States aims to increase it to 350 Wh / kg by 2020. However, Tesla's 21700 battery is on the verge of achieving this goal. It is generally believed that the potential of the three-element lithium battery has been dug up. It is time to find a better battery solution.

According to professionals, solid state batteries are the inevitable direction for lithium batteries to develop into high energy density.

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

Secondly, in terms of safety, solid-state batteries are more stable because the electrolytes are solid and are not as safe as three-way lithium batteries.

However, the disadvantage of solid-state batteries is that the charging is slow and the cost is high. So, Fisker's charging efficiency is so amazing and cheap, it sounds really tempting.

According to their vague techniques, they have great innovations in material and process manufacturing, but they do not know what this innovation specifically refers to.

In the past six months, solid-state batteries have become more and more popular. Toyota supports solid-state batteries, and Tesla is the representative of three-element lithium batteries. According to academic research, solid lithium batteries are actually the inevitable evolutionary direction of lithium batteries. At present, BMW, Toyota, Hyundai, Apple, Bosch and other companies have a layout in the solid state battery field.

After Fisker's news was announced, there was also suspicion in the industry. After all, it is experimental data, far from industrial applications, and patents are still in the filing stage. Some people also questioned that the premise of a one-minute charging is a thick cable and an ultra-high instantaneous current. Fisker was also very brave to say when he was holding a graphene battery. In the end, he still hit the face. So this time we can't help asking questions.

However, solid-state batteries are not the ultimate boss. Audi says there are also solar-powered batteries.

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