[6p-A401-1~14] 1.4 Energy conversion, storage, resources and environment

[6p-A401-8] Charge/discharge profile and magnetism for conversion-type FeF₃ cathode

〇Tsuyoshi Takami¹, Keitaro Matsui², Hiroshi Senoh², Masahiro Shikano², Hikari Sakaebe², Toshiharu Fukunaga¹, Hironori Kobayashi², Eiichiro Matsubara¹ (1.Kyoto Univ., 2.AIST)

Keywords:Li-ion battery, conversion reaction, fluoride

The FeF₃ cathode material has been expected as one of the new generation batteries because it undergoes a conversion reaction accommodates more than one electron. However, little is known about the mechanism involved in the conversion reaction, in particular, the relationship between degradation after cycles and reaction products. We prepared a series of materials after charge/discharge profile and investigated their magnetic properties to estimate the particle size of Fe nanoparticles.