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Novel mixed hydroxy-carbonate precursor assisted synthetic technique for LiNi1/3Mn1/3Co1/3O2 cathode materials

IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi

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Title Novel mixed hydroxy-carbonate precursor assisted synthetic technique for LiNi1/3Mn1/3Co1/3O2 cathode materials
 
Creator Manikandan, P.
Periasamy, P.
 
Subject Lithium batteries
Electrochemical Power Sources
 
Description Novel mixed hydroxy-carbonate (MHC) precursors were used to synthesis technique of LiNi1/3Mn1/3Co1/ 3O2 cathode material. The powder X-ray diffraction (XRD) pattern of the synthesized LiNi1/3Mn1/3Co1/3O2 cathode materials exhibited a hexagonal cell with a = 2.8535 A˚ and c = 14.2040 A˚ . Fourier transform infrared spectroscopy (FT-IR) spectrum of MHC and LiNi1/3Mn1/3Co1/3O2 consistent with vibration modes of functional group. Presence of sub-micrometer particle size (200 nm) and highly crystalline morphology confirmed using scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) suggested that oxidation state of the transition metals; Ni in +2, Mn in +4 and Co in +3 states, respectively in LiNi1/3Mn1/3Co1/3O2 cathode materials. Cyclic voltammograms (CV) revealed only one major redox couple at 4 V and suggested the absence of structural transitions from hexagonal to monoclinic structure. The Li vs. LiNi1/3Mn1/3Co1/3O2 cell delivered an initial discharge capacity of 175 mAh g�1 in the voltage range 2.5–4.6 V @ 0.1 C.
 
Publisher Elsevier Ltd.
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cecri.csircentral.net/3047/1/001-2014.pdf
Manikandan, P. and Periasamy, P. (2014) Novel mixed hydroxy-carbonate precursor assisted synthetic technique for LiNi1/3Mn1/3Co1/3O2 cathode materials. Materials Research Bulletin, 50. pp. 132-140. ISSN 0025-5408
 
Relation http://www.elsevier.co m/locate/matresbu
http://cecri.csircentral.net/3047/