Formation of Li ₁₀ Zn ₄ O ₉ , Li ₂ MoO ₃ , and ZnSeO ₃ Nanophases: Roles in Electrical Conductivity and Electrochemical Stability in Lithium Ion Conductors and their Crystalline Counterparts

Abstract

Li 2 O doped glass-nanocomposites and their crystalline counterparts have been developed and analyzed on the light of DC conductivity and cyclic-voltammetic (CV) studies. Micro-structural study reveals the distribution of Li 10 Zn 4 O 9, Li 2 Zn 2 (MoO 4 ) 3 , ZnMoO 4 , Zn(MoO 2 ) 2 , Li 2 Mo 6 O 7 and Li 2 MoO 3 nanophases in the glassy matrices. Crystalline counterparts exhibit an enhancement in crystallites’ sizes. As the crystalline counterpart is formed by controlled cooling, ZnSeO 3 chain structure is expected to break by increasing dimensions of molybdate rod-like structures. In the present study, crystalline counterpart shows better electrochemical stability. Interconnected ZnSeO 3 nanophases have to initiate structural stability as they play pivotal role in the formation of structure. Formation of Li 10 Zn 4 O 9 and Li 2 MoO 3 nanophases are supposed to be responsible for higher conductivity in the glassy system.