Improvement in the electrode–electrolyte interface of all-solid-state battery using aerosol deposition technology

Abstract

All-solid-state battery (ASSB) has attracted much attention since it is a potential candidate to solve the safety issue of batteries. However, the rigid contact between the electrode and electrolyte limits the electrochemical performance of ASSB. It is therefore necessary to modify the electrode–electrolyte interface to decrease the interfacial resistance. Herein, we use the aerosol deposition (AD) method to directly deposit the electrode, Na3V2(PO4)3 (NVP), on the Na3Zr2Si2PO[Formula: see text] (NZSP) electrolyte at room temperature. The electrolyte pellet coated with NVP demonstrates a negligible interfacial resistance and low total resistivity of about 1831.64 [Formula: see text] cm[Formula: see text]. Furthermore, the electrochemical performance in terms of cyclic voltammetry and charge/discharge of the ASSB consisting of NVP ∣ NZSP ∣ sodium (Na) metal is also investigated.