Sintesis LiNi0.8Mn0.1Co(0.1-x)Mo(x)O2/F Menggunakan Metode Self Combustion Synthesis dan Solid State dan Karakterisasinya untuk Katoda Baterai Ion Litium = Synthesis of LiNi0.8Mn0.1Co(0.1-x)Mo(x)O2/F via Self Combustion Synthesis and Solid State Method and Its Characterization for Lithium Ion Battery Cathode