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Effect of coatings on the green electrode processing and cycling behaviour of LiCoPO₄

Laszczynski, Nina 1; Birrozzi, Agnese 1; Maranski, Krzysztof; Copley, Mark; Schuster, Manfred Erwin; Passerini, Stefano 1
1 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Several approaches involving carbon and VOx coatings of LiCoPO4 to enable aqueous electrode processing are reported in this manuscript along with detailed physico-chemical and electrochemical investigations. It is shown that the choice of the carbon source has a severe impact not only on the purity, particle size and morphology of LiCoPO4, but also on its electrochemical performance. Although carbon coating improves the conductivity of LiCoPO4 and protects the particles' surface from direct contact with the electrolyte, it also leads to capacity fading upon cycling at high potentials. Reducing the carbon amount leads to an initially reduced capacity, but it significantly improves the stability upon cycling. Finally, the application of an additional VOx coating was also investigated

DOI: 10.1039/c6ta05262b
Zitationen: 26
Web of Science
Zitationen: 24
Zitationen: 27
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 0959-9428, 1364-5501
KITopen-ID: 1000062887
HGF-Programm 37.01.01 (POF III, LK 01) Fundamentals and Materials
Erschienen in Journal of materials chemistry
Verlag Royal Society of Chemistry (RSC)
Band 4
Heft 43
Seiten 17121-17128
Bemerkung zur Veröffentlichung This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
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