Like batteries, fuel cells use an electrochemical process to directly convert chemical energy into electricity.
(fuel cells; use; an electrochemical process; to directly convert chemical energy into electricity) Context(fuel cells use,List([16, 30))):(fuel cells; use an electrochemical process to directly convert; chemical energy; into electricity)
fuel cells use,List([16, 30))
fuel cells fuel cells
use use an electrochemical process to directly convert
an electrochemical process to directly convert chemical energy into electricity
chemical energy into electricity