Sila: silicon anode battery breakthrough?

Sila Nanotechnologies was founded in Silicon Valley in 2011, to develop smaller and denser batteries, using silicon-comprising nano-particles in the battery anodes. Thus it claims to have made “the biggest battery breakthrough in 30-years”.

The technology is already starting to be used in wearable devices (e.g., the Whoop 4.0 fitness wearable) with 17% higher energy density and 33% smaller devices. A partnership with BMW was secured in 2018, and with Daimler in 2019, aiming to use silicon-anode technology in electric vehicles by 2025.

Overall, our patent review did support some further de-risking of silicon anode LIBs. We found several innovations that may hang together, although the specific breakthroughs, their intelligibility and the company’s overall focus are the biggest areas to explore further. Details in the data-file.

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