Synthesis and electrochemical characteristics of Li0.7[Ni0.05Mn0.95]O2 as a positive material for rechargeable lithium batteries

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Abstract

Layered Na0.7[Ni0.05Mn0.95]O2 compounds have been synthesized by a sol-gel method, using glycolic acid as a chelating agent. Na0.7[Ni0.05Mn0.95]O2 precursors were used to prepare layered lithium manganese oxides by ion exchange for Na by Li, using LiBr in hexanol. Powder X-ray diffraction shows the layered Li0.7[Ni0.05Mn0.95]O2 has an O3 type structure, which exhibits a large reversible capacity of approximately 190 mA h g-1 in the 2.4-4.5 V range. Li0.7[Ni0.05Mn0.95]O2 powders undergo transformation to spinel during cycling.

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Shin, S. S., Kim, D. W., & Sun, Y. K. (2002). Synthesis and electrochemical characteristics of Li0.7[Ni0.05Mn0.95]O2 as a positive material for rechargeable lithium batteries. Bulletin of the Korean Chemical Society, 23(5), 679–682. https://doi.org/10.5012/bkcs.2002.23.5.679

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