Ontology highlight
ABSTRACT:
SUBMITTER: Kobayashi W
PROVIDER: S-EPMC5838218 | biostudies-other | 2018 Mar
REPOSITORIES: biostudies-other
Kobayashi Wataru W Yanagita Ayumu A Akaba Takahiro T Shimono Takahiro T Tanabe Daiki D Moritomo Yutaka Y
Scientific reports 20180305 1
Layered oxide Na <sub>x</sub> MO<sub>2</sub> (M: transition metal) is a promising cathode material for sodium-ion secondary battery. Crystal structure of O3- and P2-type Na <sub>x</sub> MO<sub>2</sub> with various M against temperature (T) was systematically investigated by synchrotron x-ray diffraction mainly focusing on the T-dependences of a- and c-axis lattice constants (a and c) and z coordinate (z) of oxygen. Using a hard-sphere model with minimum Madelung energy, we confirmed that c/a and ...[more]