title: Direct atomic-resolution observation of two phases in the Li(1.2)Mn(0.567)Ni(0.166)Co(0.067)O2 cathode material for lithium-ion batteries.
abstract: About phase: The coexistence of rhombohedral LiTMO2 (TM=Ni, Co, or Mn) and monoclinic Li2MnO3-like structures inside Li1.2Mn0.567Ni0.166Co0.067O2 is revealed directly at atomic resolution. The hetero-interface along the [001]rh/[103]mon zone axis direction is demonstrated, indicating the two-phase nature of these lithium-rich cathode materials (green Li, blue Mn, red O, cyan TM).
authors.affiliation: Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, 305-8568, Japan.
authors.forename: Haijun
authors.initials: H
authors.lastname: Yu
authors.forename: Ryo
authors.initials: R
authors.lastname: Ishikawa
authors.forename: Yeong-Gi
authors.initials: YG
authors.lastname: So
authors.forename: Naoya
authors.initials: N
authors.lastname: Shibata
authors.forename: Tetsuichi
authors.initials: T
authors.lastname: Kudo
authors.forename: Haoshen
authors.initials: H
authors.lastname: Zhou
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Ikuhara