Journal article
Microwave-Assisted Solvothermal Synthesis of Three Polymorphs of LiCoPO4 and Their Electrochemical Properties
Chemistry of materials, Vol.27(16), pp.5543-5549
08/25/2015
DOI: 10.1021/acs.chemmater.5b01670
Abstract
Many investigations have been conducted on polyanion cathodes for lithium-ion batteries, specifically LiMPO4 (M = Fe, Mn, Co, Ni), but a majority were restricted to the olivine polymorph with the Pnma space group. This study presents the synthesis and characterization of three orthorhombic polymorphs of LiCoPO4 belonging to the space groups Pnma, Pn21a, and Cmcm. The three polymorphs were synthesized with a microwave-assisted solvothermal (MW-ST) synthesis method at a relatively low temperature of 260 °C. The properties and morphology of the materials were characterized with X-ray diffraction, inductively coupled plasma–optical omissions spectroscopy, Raman and infrared spectroscopy, scanning electron microscopy, thermogravometric analysis, galvanostatic charge/discharge, and cyclic voltammetry. The electrochemical properties of the Cmcm polymorph and nanosized Pn21a polymorph are reported for the first time.
Details
- Title: Subtitle
- Microwave-Assisted Solvothermal Synthesis of Three Polymorphs of LiCoPO4 and Their Electrochemical Properties
- Creators
- Karl J Kreder - Materials Science and Engineering Program & Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United StatesGaurav Assat - Materials Science and Engineering Program & Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United StatesArumugam Manthiram - Materials Science and Engineering Program & Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Resource Type
- Journal article
- Publication Details
- Chemistry of materials, Vol.27(16), pp.5543-5549
- DOI
- 10.1021/acs.chemmater.5b01670
- ISSN
- 0897-4756
- eISSN
- 1520-5002
- Grant note
- DOI: 10.13039/100006177, name: Vehicle Technologies Program, award: DEAC0205CH11231
- Language
- English
- Date published
- 08/25/2015
- Academic Unit
- Urology; Obstetrics and Gynecology
- Record Identifier
- 9984051752402771
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