The lithium-ion battery is expected to be the "battery of choice" for hybrid electric vehicles -- vehicles that combine a gasoline- or diesel-powered engine with an electric motor to increase fuel economy.
(The lithium-ion battery; is expected; ) (The lithium-ion battery; to be; the "battery of choice" for hybrid electric vehicles) (vehicles; combine; a gasoline- or diesel-powered engine; with an electric motor)
The lithium-ion battery The lithium-ion battery vehicles
is expected to be combine
the "battery of choice" for hybrid electric vehicles
a gasoline- or diesel-powered engine with an electric motor