Zinc Oxide Nanoparticle and Its Characterization in The LTO/ZnO Composite for Lithium-ion Battery Anode Faizah (a), Bambang Priyono (a*), Zidni E. L. Chairunnisa (a), Mohammad Ridho Nugraha (a), Anne Zulfia Syahrial (a), Achmad Subhan (b)
(a) Departement of Metallurgical and Materials Engineering, Universitas Indonesia, Depok, 16424, Indonesia
*bambang.priyono[at]ui.ac.id
(b) Research Center for Physics – LIPI, PUSPIPTEK, Tangerang, Banten, 15310, Indonesia
Abstract
One of the most popular active materials being used in lithium-ion batteries is lithium titanate/Li4Ti5O12 (LTO), as it exhibits zero strain properties as well as high resistance to volume change. One of its disadvantages is low capacity and low electrical conductivity. In this experiment, the combination of LTO and zinc oxide nanoparticles (ZnO-NP) as composite provides for increasing capacity of LTO. LTO was synthesized from LiOH and anatase TiO2 using the solid-state method. The composite powders are prepared with 5, 8, and 11 wt.% composition of ZnO-NP. XRD and SEM were used to investigate the composition and microstructure of LTO/ZnO-NP composites. The electrochemical properties of the LTO/ZnO-NP electrode studied by electrochemical impedance spectroscopy, cyclic voltammetry, and charge-discharge. ZnO nanoparticles were uniformly distributed in LTO. The XRD showed a rutileTiO2 and dilithium titanate as a minor phase, while SEM showed particle distribution of LTO/ZnO-NP. LTO/ZnO-NP-11 exhibits excellent cycling performance and high capacity when used as anode with a specific capacity of 166.96 mAhg-1 at 0.1C, which is better than pure LTO.
