Preparation of a single-phase all-solid-state battery via the crystallization of amorphous sodium vanadium phosphate. Issue 44 (4th November 2022)

• Record Type: Journal Article
• Authors: Inoishi, Atsushi; Setoguchi, Naoko; Okada, Shigeto; Sakaebe, Hikari
• Is Part Of: Physical chemistry chemical physics. Volume 24:Issue 44(2022)
• Page Start: 27375
• Page End: 27379
• Publication Date: 2022-11-04
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d2cp04328a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : A single-phase all-solid-state battery was prepared from amorphous Na3 V2 (PO4 )3 powder. It showed reasonable ionic conductivity and charge–discharge properties because of the density of the pellet. Abstract : A single-phase all-solid-state battery was prepared from amorphous Na3 V2 (PO4 )3 (NVP) powder, which was synthesized by mechanical milling of the crystalline NVP. It was found that the structure of the amorphous NVP was much different from that of the crystalline NVP from the FT-IR measurement. The charge–discharge curves of the half-cell using organic electrolyte were also much different from those in the case of crystalline NVP. By using amorphous NVP, a much higher ionic conductivity of the sintered pellet was observed compared with the case using crystalline NVP because of the high density of the pellet. The single-phase all-solid-state battery prepared from the amorphous NVP showed reasonable charge–discharge properties at room temperature.