New StoreDot battery promises electric vehicles that can fully recharge in five minutes

nanoguy

Posts: 770   +12
Staff member
Why it matters: Despite the amount of money and human resources involved in developing better battery technology, progress has been relatively slow. An Israeli startup says it has achieved commercial viability for a new battery that trades in some energy density for much faster charging speeds, and might end up in electric cars in the next five years.

It seems like every time we get news of improved battery technology, it's always something experimental that researchers are playing with in a lab setting and may never see the light of day. For example, IBM claimed in 2019 that it had developed a cheap and environmentally friendly battery technology, while small companies like Sila Nanotechnology, Advano and XNRGI have been trying to increase the global manufacturing capacity of batteries while reusing as much of the existing tooling as possible.

However, Israeli company StoreDot this week announced it's come up with an improved battery that has a clear timeline for a mass rollout. The company says it has managed to produce a small run of 1,000 sample lithium-ion batteries that are designed to charge in around five minutes. To that end, StoreDot partnered with Eve Energy, a Chinese manufacturer that's been making battery products for the last 20 years.

This marks an important step towards making the charging of electric cars faster and more convenient. StoreDot has only demonstrated this new technology on an electric scooter, but these are engineering samples that are compliant with the UN 38.3 standard, which is why the company expects to achieve mass production in the coming years. That is, assuming it can find the right strategic partners among tier 1 battery-makers such as Panasonic, Tesla, Samsung, and LG Chem.

StoreDot CEO Doron Myersdorf explains that their "team of top scientists has overcome inherent challenges of extreme fast charging (XFC) such as safety, cycle life and swelling by harnessing innovative materials and cell design. [...] This paves the way for the launch of our second-generation, silicon-dominant anode prototype battery for electric vehicles later this year."

The company is looking to make batteries that can only deliver up to 100 miles of range, as the new battery tech has a lower energy density than current lithium-ion chemistries. On the other hand, StoreDot says its battery can be manufactured using existing tooling, which should make it more attractive for potential partners. Furthermore, Myersdorf says the battery can be recharged 1,000 times while retaining 80 percent of the original capacity.

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Uncle Al

Posts: 8,014   +6,783
It definitely has potential but having to stop and recharge every 100 miles might be annoying to too many on a longer trip. When they boost it up to 200-300 miles I think it will have a much greater impact. For local drivers I don't think it will be so bad, but most of these are charging at their home each night so the need for a quick charge will be less significant AND what kind of fee will be expected for each of these "quick charges", especially when it starts causing gas stations to change over? If they attempt to price it the same as fuel prices? I think that would go over like a lead balloon .....
 

mosu

Posts: 553   +193
A 20 KWh battery will need at least a 600A charger for recharging in about 6 minutes, assuming it's a 400V type.Will need new chargers and maybe new infrastructure.
 

mbrowne5061

Posts: 1,840   +1,068
A 20 KWh battery will need at least a 600A charger for recharging in about 6 minutes, assuming it's a 400V type.Will need new chargers and maybe new infrastructure.
Exactly. You aren't getting around the laws of thermodynamics. Any decrease in charging time will always be accompanied with a matching increase in either current and/or voltage demands. If you cannot meet those demands, then the decrease in charging time is meaningless.
 

neeyik

Posts: 1,877   +2,191
Staff member
A 20 KWh battery will need at least a 600A charger for recharging in about 6 minutes, assuming it's a 400V type.Will need new chargers and maybe new infrastructure.
Indeed but it's worth noting that the 5 minutes was for a Torrot scooter - the video showed them demonstrating the charging cycle, where it averaged 55 volts and 130 amps. That particular model normally charges at 55V, 5A for 5 hours, so it's a big improvement.
 

Yad

Posts: 73   +8
More innovation is nice.
QuantomDot achieves 500miles in one charge and charges in 15 mins.