- Me chan ical ▁Systems ▁( J E MS ). ▁ ▁They ▁both ▁currently ▁operate ▁in ▁the ▁S weet ▁A ub urn ▁neighborhood ▁of ▁Atlanta . ▁ ▁Ex cell at ron ▁Sol id ▁State , ▁L LC ▁is ▁a ▁U . S . ▁- based ▁technology ▁company ▁that ▁focus es ▁on ▁the ▁development ▁and ▁production ▁of ▁solid ▁state ▁batter ies , ▁particularly ▁thin ▁film ▁batter ies . ▁Its ▁mission ▁is ▁stated ▁as ▁“ … to ▁develop ▁revolution ary ▁energy ▁storage ▁technology ▁as ▁well ▁as ▁the ▁manufact uring ▁technology ▁required ▁for ▁its ▁cost ▁effective ▁commercial ization .” ▁The ▁company ' s ▁batter ies ▁bo ast ▁safety , ▁high ▁temperature ▁cap ability , ▁long ▁cycle ▁life , ▁thin ▁flexible ▁profiles , ▁unique ▁propriet ary ▁pass iv ation ▁bar rier ▁and ▁pack aging ▁solution , ▁and ▁high ▁rate ▁cap ability . ▁ ▁The ▁company ▁is ▁target ing ▁military ▁applications ▁and ▁impl ant able ▁medical ▁devices ▁as ▁initial ▁consum ers . ▁ ▁J E MS ▁has ▁developed ▁the ▁Johnson ▁Th ermo - E lect ro chem ical ▁Con verter ▁System ▁( J TE C ), ▁listed ▁by ▁Popular ▁Mechan ics ▁as ▁one ▁of ▁the ▁top ▁ 1 0 ▁invent ions ▁of ▁ 2 0 0 9 . ▁This ▁system ▁has ▁potential ▁applications ▁in ▁solar ▁power ▁plants ▁and ▁ocean ▁thermal ▁power ▁generation . ▁It ▁converts ▁thermal ▁energy ▁to ▁elect rical ▁energy ▁using ▁a ▁non - ste am ▁process ▁which ▁works ▁by ▁pushing ▁hydro gen ▁ ions ▁through ▁two ▁memb ran es , ▁with ▁claimed ▁advantages ▁over ▁alternative ▁systems