Co-precipitation synthesis and electrochemical properties of graphene supported LiMn 1/3 Ni 1/3 Co 1/3 O 2 cathode materials for lithium-ion batteries

Nanostructured graphene supported LiMn 1/3 Ni 1/3 Co 1/3 O 2 has been prepared by the co-precipitation method and used as the cathode material for lithium-ion batteries. The structure and morphology of the composite were examined using atomic force microscopy, scanning electron microscopy, high-resolution transmission electron microscopy, and x-ray diffraction. The composite cathodes made of graphene nanosheet supported LiMn 1/3 Ni 1/3 Co 1/3 O 2 showed superior electrochemical performance and increased capacity compared to raw LiMn 1/3 Ni 1/3 Co 1/3 O 2 electrodes. The outstanding electrochemical behavior of graphene supported LiMn 1/3 Ni 1/3 Co 1/3 O 2 was ascribed to the increased electrical conductivity and high structural stability resulting from the addition of graphene.

Y-H Ding, H-M Ren, Y-Y Huang, F-H Chang, X He, J-Q Fen and P Zhang

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