Open AccessSynthesis of Li4Ti5O12 (LTO) by Sol-Gel Method for Lithium Ion Battery Anode
Author(s) -
Yustinus Purwamargapratala,
Agus Sujatno,
Yohanes Lugas Sabayu,
Evvy Kartini
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/553/1/012062
Subject(s) - anode , materials science , dielectric spectroscopy , lithium titanate , scanning electron microscope , lithium (medication) , oxalic acid , conductivity , battery (electricity) , lithium ion battery , electrochemistry , analytical chemistry (journal) , particle (ecology) , chemical engineering , particle size , sol gel , inorganic chemistry , nanotechnology , composite material , chemistry , chromatography , electrode , endocrinology , oceanography , engineering , power (physics) , quantum mechanics , medicine , physics , geology
Li 4 Ti 5 O 12 (LTO) is one of the material that has the potential as anode in lithium ion battery that is safe to use and has a long life cycle. In this research, LTO was synthesed by sol-gel method using oxalic acid as chelating material, it is expected to produce materials with smaller particles and homogeneous distribution. The LTO sol-gel compared to commercial LTO. Characterization was carried out by X-ray diffraction (XRD), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS). The measurement of LTO battery performance is carried out by charge discharge and electron impedance spectroscopy. The sol-gel LTO has a purity of 99%, which is higher than 57% commercial LTO. The average particle size is 1 μm, and the conductivity is 7.6x10 −7 S.cm −1 . While commercial LTO has a purity of 57%, the average particle size is 30 μm and conductivity is 7.4x10 −7 S.cm −1 . Batteries with synthesized LTO anodes have a capacity of 25.9% higher in the first cycle and 110% higher in fifth cycles incomparison with batteries used commercial LTO anodes.