[14a-2H-1~11] 6.3 Oxide electronics

[14a-2H-3] Lattice-constant-size dependence of Li⁺/Na⁺ diffusion in Prussian blue analogues

〇Masamitsu TAKACHI¹, Yuya Fukuzumi¹, Yutaka Moritomo^1,2,3 (1.Graduate School of Pure & Applied Science, 2.Faculty of Pure & Applied Science, 3.Center for Integrated Reseacrh in Fundamental Science and Engineering)

Keywords:secondary battery,diffusion constant,activation energy

Prussian blue analogues (A_xM_A[Fe(CN)₆]_y zH₂O, A and M_A are alkali metal and transition metal, respectively) is a promising cathode material for both lithium-ion (LIB) and sodium-ion (SIB) secondary battery. In this study, we systematically investigated diffusion constants (D) of Li⁺/Na⁺ and their activation energies (E_a) against the lattice-constant-size.