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

[14a-2H-2] Ion conductivity across Li₃PO₄/LiCoO₂ interfaces fabricated using PLD

〇Susumu Shiraki¹, Tohru Suzuki¹, Hideyuki Kawasoko¹, Ryota Shimizu¹, Taro Hitosugi¹ (1.AIMR, Tohoku Univ.)

Keywords:Lithium batteries,thin films,pulsed laser deposition

We fabricated all-solid-state thin film batteries, and evaluated ion conductivity across Li₃PO₄/LiCoO₂ interfaces using impedance spectroscopy. Compared to RF magnetron sputtering, PLD can provide a very low resistance across solid electrolyte/electrode interfaces (~12 Wcm²), indicating the formation of good solid electrolyte/electrode interfaces without damage on the LiCoO₂ surface during the deposition of Li₃PO₄.