Preparation of Al-doped Li4Ti5O12anode material via sol-gel process with acidic catalyst for lithium-ion batteries

Slamet Priyono, Nofrijon Sofyan, Achmad Subhan, Bambang Prihandoko, Akhmad Herman Yuwono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This experimental research was carried out to determine the ability of Al-doped lithium titanate (Li4Ti5O12, LTO) to function as an anode material synthesized by the facile sol-gel using lithium acetate (C2H3O2Li), titanium butoxide (C16H36O4Ti), and aluminum acetate (C4H7AlO5). All raw materials with Al contents of 1, 2, and 3 wt% were stoichiometrically dissolved in ethanol solutions using hydrochloric acid as a catalyst. After aging for 72 h, the precursors were sintered at 900°C for 2 h in air atmosphere. Furthermore, the effect of Al-doped on the crystal structure of LTO was studied using X-ray diffraction, while the morphology, size, and element of the sample were measured using scanning electron microscope (SEM). The cyclic voltammetry and capacity of the samples were investigated using the galvanostatic techniques in a half cell. The result of phase analysis showed the presence of LTO and rutile structures as impurities. In addition, the SEM images showed that the particle was in irregular form without porous observations. The average particle size of 6 mm was measured using image-J software, while the increase in dopant on the LTO structure led to the enhancement of the diffusion coefficient of Li-ion. Based on these characteristics, the spinel LTO provided an initial capacity of more than 100 mAhg-1 after charge-discharge at the rate of 0.1 C in range potential 0 - 3 V.

Original languageEnglish
Title of host publicationAdvances in Metallurgy and Engineering Materials
Subtitle of host publicationCharacterizations and Innovation
EditorsJaka Fajar Fatriansyah, Deni Ferdian, Wahyuaji Narottama Putra, Akhmad Herman Yuwono, Donanta Dhaneswara, Nofrijon Sofyan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735444669
DOIs
Publication statusPublished - 9 May 2023
EventInternational Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020 - Virtual, Online
Duration: 16 Nov 202017 Nov 2020

Publication series

NameAIP Conference Proceedings
Volume2538
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020
CityVirtual, Online
Period16/11/2017/11/20

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