Wide　application　of　NCM　(LiNixCoyMnzO2)　lithium-ion　batteries　(LIBs)　for　electric　vehicles　indicates　their　high　scrap　amount　in　the　near　future.　Thus,　spent　NCM　LIBs　must　be　recycled　from　the　economic　and　environment　viewpoint.　In　this　context,　a　novel　process　was　developed　to　achieve　efficient　extraction　of　valuable　metals　and　harmless　treatment　of　organics　in　NCM　LIBs　through　full-component　pyrolysis.　Organic　substances,　such　as　a　separator　and　a　binder,　were　recovered　in　the　form　of　pyrolytic　oil　and　gas,　whereas　the　cathode　material　was　simultaneously　dissociated　and　reduced,　realizing　the　subsequent　extraction　of　valuable　metals　by　acid　leaching　without　a　reducing　agent.　The　leaching　efficiencies　of　lithium,　nickel,　cobalt,　and　manganese　were　over　99.5%　under　optimum　conditions:　a　pyrolysis　temperature　of　450　degrees　C,　a　pyrolysis　time　of　60　min,　and　a　nitrogen　flow　rate　of　100　mL/min.　In　addition,　the　reduction　mechanism　of　the　cathode　material　was　investigated　by　experimental　design　and　analysis　of　pyrolytic　gas.