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

[16a-A31-7] Hydrostatic pressure effect on battery voltage in layered NaMO₂

〇Wataru Kobayashi^1,2,3, Shinji Iouno², Kaoru Amaha², Shota Akama², Yutaka Moritomo^1,2,3 (1.Fac. Pure and Appl. Sci., Univ. Tsukuba, 2.Grad. Sch. Pure and Appl. Sci., Univ. Tsukuba, 3.CiRfSE, Univ. Tsukuba)

Keywords:secondary battery, pressure effect

Battery voltage depends on not only redox couple but also crystal structure. By investigating a relationship between the voltage and the structure, a design principle for enhancement of the voltage can be clarified. In this presentantion, we will report open circuit voltage and x-ray diffraction pattern of O3-type NaMO₂ (M=Cr, Fe, Co) under hydrostatic pressure.