Sila Nanotechnologies will produce silicon anode batteries with 10-15% more capacity in wearable gadgets in 2019 and EV cars in 2023

Sila Nanotechnologies is developing silicon based anodes for lithium-ion batteries. They have raised another $70 million with Sutter Hill Ventures leading the round and other investors include Siemens’ venture firm Next47 and Japan’s ATL.

Sila Nanotechnologies will scale production with the funding to get into millions of commercial wearable gadgets in 2019.

Angstron Materials, Enovix, Enevate and others are also having silicon anode batteries undergoing tests by battery manufacturers, car companies and consumer-electronics companies.

BMW plans to incorporate Sila technology by 2023 and increase battery-pack capacity by 10-15%.

China-based Amperex is one of Sila’s investors. Sila clients include BMW and Amperex Technology, battery supplier to companies including Apple and Samsung.