Solvothermal synthesis of Mn-based MOF materials: Application in high energy density lithium ion battery

Abstract

The present work elaborates on the solvothermal synthesis of Li [Li0.1Ni0.3Mn0.7] O2 cathode materials derived from metal organic frameworks (LNMO-MOFs) with the novel use of complexing agents, 2-methylimidazole (MI) and 1,10-phenanthroline (PTH). Remarkably, these complexing agents increased the tap density and thereby enhanced the energy density significantly. Additionally, they exhibited low resistance 12.75 Ω, compatible particle size distribution (517.46 nm) and a specific capacity of 289.03 mhA g−1 which are optimal for commercial use. Li [Li0.1Ni0.3Mn0.7] O2 surface enabled by 1,10-phenanthroline ensures a unique long cycling stability with a retention of 98.2 % even after 500 cycles. As a result, LNMO-MOFs have been demonstrated to be effective candidates for applications using lithium-ion batteries (LIBs).