High voltage (∼5V) olivine-type LiCoPO4/C nano-particle cathode material synthesized from modified solid state reaction

Authors

J. S. Gnanaraj, Yardney Technical Products Inc.
F. Puglia, Yardney Technical Products Inc.
B. Lucht, University of Rhode IslandFollow
L. Yang, University of Rhode Island

Document Type

Conference Proceeding

Date of Original Version

1-1-2009

Abstract

Nano particle sized LiCoPO4 cathode material was synthesized through modified solid state reaction and other methods. Carbon coating on the surface of the cathode material particles was carried out using an in situ carbon coating procedure. The calcination temperatures between 550°C and 750°C were used to synthesize cathode materials. The synthesized cathode materials were characterized by X-ray powder diffraction (XRD) for structure determination, scanning electron microscopy (SEM) for morphology studies, particle size analyses. Coin/pouch cells were built and cycled in standard carbonate based lithium hexafluoride phosphate (LiPF6) electrolyte solutions. The cathode film forming additives include 2,3-dihydrofuran (2,3-DHF) and 2,5-dihydrofuran (2,5-DHF), LiFOB, and vinylene carbonate (VC) were also investigated in cells. ©The Electrochemical Society.

Publication Title, e.g., Journal

ECS Transactions

Volume

19

Issue

27

Citation/Publisher Attribution

Gnanaraj, J. S., F. Puglia, B. Lucht, and L. Yang. "High voltage (∼5V) olivine-type LiCoPO4/C nano-particle cathode material synthesized from modified solid state reaction." ECS Transactions 19, 27 (2009): 31-39. doi: 10.1149/1.3265866.