TiO<sub>2</sub> Anode Material for All-Solid-State Battery Using NASICON Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> as Lithium Ion Conductor

We have been developing sintered multilayer oxide-based all-solid-state batteries. Anode active material rutile-type TiO2 was not reacted with amorphous Na superionic conductor (NASICON)-type solid electrolyte Li1.5Al0.5Ge1.5(PO4)3 (LAGP) even after at 600 °C in a nitrogen atmosphere from the XRD patterns. The charge/discharge behavior of electrochemical measuring cell (when using non-aqueous electrolyte) different that TiO2. However, anatase-type changed sintering process. Additionally, result input/output characteristics battery, as anode 3 times higher discharge capacity than current value 25.6 µA mm−2. Finally, we successfully measured Raman spectroscopy all-solid-battery and shift peaks were reversibility during charge/discharge. Based on these findings, conclude maintained strong crystalline structure high Li diffusivity when LAGP. It suggested is suitable for batteries requiring