Synthesized Li₄Ti₅O₁₂ from Technical Grade Raw Material by Excess LiOH.H₂O as Anode Lithium Ion Battery

Li₄Ti₅O₁₂ powder as anode lithium ion battery was synthesized via solid state reaction with excess LiOH.H₂O. Technical grades raw materials like LiOH.H₂O and TiO₂ were used as starting materials. LiOH.H₂O excess was varied from 0; 2.5; 5 and 7.5% to get higher optimum phases and capacity of Li₄Ti₅O₁₂. All raw materials were mixed stoichiometry then followed by calcination and sintering process to get final products. The obtained products were characterized by XRD, SEM, and PSA to get properties of active materials and the electrochemical properties were done by cyclic voltametry and charge-discharge test. The XRD test showed that 5% excess have highest Li₄Ti₅O₁₂ phases. All samples have same in morphology, agglomerate and same in particle size distribution. Sample with 5% excess showed good reversible process and chargedischarge test showed that increasing Li₄Ti₅O₁₂ phase can improve specific capacity. (paper)