Can QuantumScape and Factorial Energy mass-produce solid-state batteries?
Two American companies are pursuing rival manufacturing strategies for these long-promised cells in an industry China dominates
Two American companies, QuantumScape and Factorial Energy, are vying to mass-produce a new type of battery called solid-state batteries. These batteries promise higher energy densities than current lithium-ion batteries, which could help alleviate range anxiety in electric vehicles. QuantumScape, founded by Tim Holme, uses a ceramic-based cell and is currently producing it on a pilot line in Silicon Valley.
Factorial Energy, led by Siyu Huang, employs a polymer-based cell and has its cells tested in Mercedes-Benz and Stellantis vehicles. Both companies claim their solid-state cells have significantly higher energy densities, up to 301 Wh/kg for QuantumScape and 391 Wh/kg for Factorial. The companies aim to bypass China's dominance in lithium-ion battery manufacturing.
The term "solid state" refers to the architectural design of the battery, not a specific chemistry. Solid-state batteries replace liquid electrolytes with solid ones, eliminating flammability risks and enabling the use of pure lithium metal anodes, which could increase energy density by a factor of 10. However, solid electrolytes pose challenges, as lithium metal is highly reactive and can cause dendrite formation, leading to short circuits and fires.
Despite these challenges, solid-state batteries hold promise for the future of battery technology, potentially outperforming current lithium-ion batteries in terms of energy density and safety.
Written by urgent.news from Scientific American's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
