[18p-P02-1~30] 6.3 Oxide electronics

[18p-P02-22] Effect of nanofiberization on ionic conduction properties at Li_0.35La_0.55TiO₃/Li₄Ti₅O₁₂ interface.

〇(M2)Kentaro Oura¹, Masaya Kurogi¹, Masahumi Obara¹, Teruaki Nomiyama¹, Yuji Horie¹ (1.Kagoshima Univ.)

Keywords:

all-solid-state battery,ionic conduction,electrospinning

In order to realize all-solid-state batteries using solid electrolytes, the low ionic conductivity of solid electrolytes and poor connection at the electrode interface must be overcome.In a previous study, measurements with electrolyte showed that the charge-discharge characteristics were improved when electrospun nanofibers (NFs) of Li₄Ti₅O₁₂ (LTO) were used for anode material by increasing the contact area between the electrolyte and LTO and decreasing the ion insertion depth.Therefore, in this study, we tried to insert a solid electrolyte, Li_0.35La_0.55TiO₃ (LLTO), into the network of NFs to expand the reaction field and improve the charge-discharge capacity and ionic conduction properties.