Battery technology has become a hot topic in the green movement because of the last decade's developments to make batteries more environmentally friendly. Lithium iron phosphate (LFP) batteries are widely used in both consumer and defense applications, such as cellular telephones and notebook computers; they also store energy needed to run power tools, medical equipment and plug-in hybrid electric vehicles.
They are considered safer, less expensive and more environmentally friendly than most other rechargeable batteries. Research programs are developing new and less costly versions of rechargeable lithium batteries for use in electric and hybrid vehicles. Lithium batteries offer both high energy-storage capacity and an environmentally benign alternative to the harmful lead used in conventional batteries.