Khomane, R.B. and Prakash, A.S. and Ramesha, K. and Sathiya, M. (2011) CTAB-assisted sol–gel synthesis of Li4Ti5O12 and its performance as anode material for Li-ion batteries. Materials Research Bulletin, 46 (07). pp. 1139-1142. ISSN 0025-5408

PDF - Published Version Restricted to Registered users only Download (297Kb) | Request a copy

Abstract

A simple CTAB-assisted sol–gel technique for synthesizing nano-sized Li4Ti5O12 with promising electrochemical performance as anode material for lithium ion battery is reported. The structural and morphological properties are investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The electrochemical performance of both samples (with and without CTAB) calcined at 800 8C is evaluated using SwagelokTM cells by galvanostatic charge/discharge cycling at roomtemperature. The XRD pattern for sample prepared in presence of CTAB and calcined at 800 8C shows high-purity cubicspinel Li4Ti5O12 phase (JCPDS # 26-1198). Nanosized-Li4Ti5O12 calcined at 800 8C in presence of CTAB exhibits promising cycling performance with initial discharge capacity of 174 mAh g-1 (100% of theoretical capacity) and sustains a capacity value of 164 mAh g-1 beyond 30 cycles. By contrast, the sample prepared in absence of CTAB under identical reaction conditions exhibits initial discharge capacity of 140 mAh g-1 (80% of theoretical capacity) that fades to 110 mAh g-1 after 30 cycles

Item Type:	Article
Uncontrolled Keywords:	Electrochemical properties; Oxides; Nanostructures; Sol - gel chemistry
Subjects:	Lithium batteries Electrochemical Materials Science Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	19 Nov 2012 08:01
Last Modified:	19 Nov 2012 08:01
URI:	http://cecri.csircentral.net/id/eprint/2918

Actions (login required)

View Item