StoreDot: What’s the Technology Behind a Five-Minute Charge Battery?

January 24th, 2021

Via: Ars Technica:

As anyone who’s plugged in a low-charge laptop while it’s sitting on their lap knows, charging a battery produces a lot of heat. Charging it faster produces even more. To deal with this heat, StoreDot is essentially producing a diffuse battery with lots of space in between individual cells, as you can see at the four-minute mark of this video (embedded below). The cells have significant gaps between them, and the battery housing has holes that allow airflow between them. It’s charged in a stand with fans that force air through the battery to keep the heat under control.

Anybody could do that with existing battery technology, but there’s a very obvious cost: a much lower energy density, meaning a battery has to be much larger to hold the same amount of charge. StoreDot is compensating by working on technology that allows a much higher charge density, which offsets the lower density of materials. In the end, the battery should hold similar amounts of charge per volume as existing batteries, despite having less battery material present.

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