https://www.01net.it/sila-rolls-out-breakthrough-engineered-material-for-li-ion-batteries-with-whoop-4-0-the-first-commercially-available-device-powered-with-sila-science/
Sila Rolls out Breakthrough Engineered Material for Li-ion Batteries With WHOOP 4.0, the First Commercially Available Device Powered With Sila Science