A Two-Step Synthesis for Li2CoPO4F as High-Voltage Cathode Material. Issue 14 (1st January 2015)

• Record Type: Journal Article
• Authors: Schoiber, J.; Berger, R. J. F.; Yada, C.; Miki, H.; Hüsing, N.
• Is Part Of: Journal of the Electrochemical Society. Volume 162:Issue 14(2015)
• Page Start: A2679
• Page End: A2683
• Publication Date: 2015-01-01
• Subjects: cathode material; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0331514jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Li2 CoPO4 F has been synthesized via a novel two-step reaction from a solvothermally prepared precursor mixture of LiCoPO4 and LiF. Solvent influences were monitored by powder X-ray diffraction and the reaction conditions for the conversion of the precursor mixture to Li2 CoPO4 F were optimized. In addition, the obtained materials were characterized before and after carbon-coating by SEM, N2 sorption, elemental and thermogravimetric analysis. The electrochemical performance of the products as high-voltage cathode materials in a coin-cell was tested, and long term stability over 50 charge/discharge cycles could be demonstrated.