Optimizing the performance of Li4Ti5O12 anode synthesized from TiO2 xerogel and LiOH with hydrothermal-ball mill method by using acetylene black

Bambang Priyono, P. B. Murti, Anne Zulfia Syahrial,, A. Subhan

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

2 Citations (Scopus)

Abstract

Optimizing the Li-ion Batteries performance using Li4Ti5O12 (LTO) as anode material by addition of using Acetylene Black was studied in this research. The LTO was successfully synthesized using sol-gel method to form TiO2 xerogel continued by calcination, hydrothermal, ball milling and sintering process. XRD (X-Ray Diffraction), scanning electron microscopy-Energy Dispersive Spectroscopy (SEM-EDS) and Brunauer-Emmett-Teller (BET) was performed to identify the characteristic of Li4Ti5O12 powder likes phase, morphology, chemical composition and surface area. Spinel Li4Ti5O12 and rutile TiO2 were detected in XRD patterns. The morphology of Li4Ti5O12 shows presence of agglomerates structure. The surface area of Li4Ti5O12 powder is 6.404?m2/g. Electrode sheet then be prepared with LTO and mixed with PVDF binder (5 wt%) and AB 5 wt% (LTO-1), 10 wt% PVDF binder and 10wt% AB (LTO-2), 15 wt% PVDF binder and 15 wt% AB (LTO-3) of total weight solid content. Half-cell coin battery was made with lithium counter electrode. Electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and Charge-discharge (CD) test were performed to examine the performance of Li-ion Batteries. The best result was obtained in LTO-2, due to lowest resistance (27 ohm) and highest initial capacity (146.82 mAh/g). The increasing of AB content affects the rate capability of battery. It can be seen by CD test, where the LTO HT2-AC 1.5 has better rate capability then LTO-2 and LTO-1. LTO-3 has 24% of initial capacity at 10C, when LTO-2 has 21% of initial capacity at 10C, and LTO-1 has no capacity at 10C. It is proved that increasing AB content could lead to rate-capability and cycling performance improvement which reached at the optimum value in the LTO-2.

Original languageEnglish
Title of host publicationRenewable Energy Technology and Innovation for Sustainable Development
Subtitle of host publicationProceedings of the International Tropical Renewable Energy Conference, iTREC 2016
EditorsNofrijon Sofyan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414945
DOIs
Publication statusPublished - 28 Mar 2017
Event1st International Tropical Renewable Energy Conference: Renewable Energy Technology and Innovation for Sustainable Development, iTREC 2016 - Bogor, Indonesia
Duration: 26 Oct 201628 Oct 2016

Publication series

NameAIP Conference Proceedings
Volume1826
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Tropical Renewable Energy Conference: Renewable Energy Technology and Innovation for Sustainable Development, iTREC 2016
CountryIndonesia
CityBogor
Period26/10/1628/10/16

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