2008

ElectrodesF 3000 Synthesis and Electrochemical Characterization of Layered Li(Ni1/3Co1/3Mn1/3)O2

Cathode Materials by Low-Temperature Solid-State Reaction. — The title com-pound is synthesized by a low-heating solid state reaction method from a ball milled (8 h) stoichiometric mixture of LiOH·H2O, M(OAc)2 (M: Ni, Co, Mn) and oxalic acid (150 °C, 24 h, followed by calcination at 600, 700, and 800 °C in air). The samples are characterized by XRD (space group R3m, hexagonal α-NaFeO2 structure), TG/DSC, SEM, and electrochemical measurements. The materials prepared at 700 and 800 °C show excellent capacity retention after 20 cycles at room temperature. Both samples exhibit better electrochemical properties than those synthesized by co-precipitation method and conventional solid state reaction. — (LIU, J.; QIU*, W.; YU, L.; ZHAO, H.; LI, T.; J. Alloys Compd. 449 (2008) 1-2, 326-330; Sch. Mater. Sci. Eng., Univ. Sci. Technol. Beijing, Beijing 100083, Peop. Rep. China; Eng.) — W. Pewestorf

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