Abstract
Synthesis of spinel LiNi1/2Mn3/2O4 powders was attempted for the first time via an ultrasonic spray pyrolysis method with different pH condition. After pyrolysis, the as-prepared particles with pH 7 condition have a dense spherical morphology without aggregation. The LiNi 1/2Mn3/2O4 powders were characterized by means of X-ray diffraction (XRD), scanning (SEM) and transmission electron microscope (TEM), and electrochemical testing. High crystalline LiNi1/2Mn 3/2O4 was synthesized over 900 °C showing well-developed octahedron particle shape. The discharge capacity of the synthesized material was delivered over 135 mA h g-1 between 3.5 and 5.0 V with high capacity retention of over 99% during 40 cycles. Consequently, it could be seen that the ultrasonic spray pyrolysis is effective synthetic method for 5 V spinel cathode materials.
Original language | English |
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Pages (from-to) | 481-486 |
Number of pages | 6 |
Journal | Solid State Ionics |
Volume | 176 |
Issue number | 5-6 |
DOIs | |
Publication status | Published - 2005 Feb 14 |
Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by KOSEF through the Research Center for Energy Conversion and Storage.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
Keywords
- Chemical synthesis
- Scanning and transmission electron microscopy
- Ultrasonic
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics