Silicon Powder Yields 10X Battery Improvements
Sila’s Titan Silicon anode powder consists of tiny particles of nano-structured silicon that replaces graphite in traditional lithium ion batteries. Compared to graphite, silicon stores up to 10 times more energy, so using it instead of graphite for anodes — which release electrons when a battery discharges — can significantly improve a battery’s energy density.
However, the material swells during repeated charging, with the resulting cracks radically reducing battery life. The Sila technology allows for this expansion by using nano-scale carbon “scaffolding” to keep the silicon in check.
The silicon powder has several advantages. With it, EVs could soon be able to travel up to 500 miles without stopping to charge. When the need does arise to recharge, the Sila batteries could do so in about 10 minutes.
Source: CleanTechnica: Read The Article
PSR Analysis: Using silicon powder does not require new manufacturing techniques so the technology is proven and should be relatively cheap (but this wasn’t mentioned in the article) and it bypasses the virtual Chinese monopoly on purified graphite (China currently supplies 96% of the purified graphite used by the world’s battery makers). PSR
Guy Youngs, is Forecast & Adoption Lead at Power Systems Research
