2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 10: Mineral & Secondary Battery
| Editors: | Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 340 pages |
| ISBN: | 978-1-987820-33-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Preparation of Nanocrystalline Lithium Niobate Powder Using Pechini Polymeric Precursor Method
Cemile Yerlikaya1; Ali Kamali2; Vasant Kumar2;1ITU CHEMICAL AND METALLURGICAL FACULTY, Istanbul, Turkey; 2UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom (Great Britain);
Type of Paper: Regular
Id Paper: 511
Topic: 14
Abstract:
In recent years, lithium-ion batteries are important for a wide variety of applications. Battery performance depends critically on the materials used, so the development of advanced materials is important for advancing battery technology. Lithium niobate (LN) is a ferroelectric material widely used in electro-optics but recent studies have been carried out on Li-ion batteries, where LN is used as a negative electrode or buffer layer material. In this study, nanopowders of lithium niobate (LiNbO3, LN) were synthesized using a simple and effective method via Pechini-type reaction from the mixture of water–soluble compounds including Li2CO3, a new Nb source, ammonium niobate (v) oxalate hydrate, citric acid (CA) and ethylene glycol (EG). Heating the mixture to 80 °C produced a white gelatinous precursor without any precipitation, which was calcined at various temperatures in air. The thermal behavior of the precursor gel has been studied by thermal gravimetric (TG) and differential thermal analysis (DTA) and the products derived from calcination of the gel at various temperatures have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM).