[16a-A31-1~9] 6.3 Oxide electronics

[16a-A31-6] Structure-related battery properties in O3-type NaFe_0.5Co_0.5O₂

〇(M1)Kaoru Amaha¹, Yutaka Moritomo^1,2,3, Wataru Kobayasi^1,2,3 (1.Grad. Sch. Pure and Appl., Univ. Tukuba, 2.Fac. Pure and Appl. Sci., Univ. Tsukuba, 3.CiRfSE, Univ. Tsukuba)

Keywords:secondary battery

Recently, good cyclability was found in O3-type NaFe0.5Co0.5O2 solid solution.
To reveal a contributing factor of the good cyclability, we prepared quenched and slow-cooled powder samples of NaFe0.5Co0.5O2, and measured their battery properties. In this presentation, we will discuss a relationship between the battery property and crystal structure using scanning-
electron-microscope and synchrotron x-ray diffraction data.