Atomic Structure of a Lithium-Rich Layered Oxide Material for Lithium-Ion Batteries: Evidence of a Solid Solution

• DOI: 10.1021/cm200831c
• Publication Date: 2011-07-19T17:34:04Z
• Authors: Karalee A. Jarvis; Zengqiang Deng; Lawrence F. Allard; Arumugam Manthiram; Paulo J. Ferreira
• Keywords: Monoclinic crystal system; Powder Diffraction

Li[Li0.2Ni0.2Mn0.6]O2, which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, the first time, combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction (D-STEM). These techniques, in X-ray (XRD) conventional (ED), indicate that this composed solid solution C2/m monoclinic symmetry multiple planar defects. In addition, we show XRD ED alone can give misleading information cannot resolve structure these materials without additional use aforementioned techniques.