Effect of Na3BO3 Addition into Na3V2(PO4)3 single-phase all-solid-state batteries

Akira NISHIO, Nobuaki SHIRAI, Hironari MINAMI, Hiroaki IZUMI, Atsushi INOISHI, Shigeto OKADA

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


To reduce the interfacial resistance between the electrodes and electrolyte in all solid-state battery, we have recently suggested the idea of a single-phase all-solid-state battery that is made from a single material with the three roles of electrolyte, positive electrode and negative electrode. In this research, the effects of Na3BO3addition into Na3V2(PO4)3 were investigated with respect to the electrochemical properties. Na3BO3addition improved the relative density of Na3V2(PO4)3 by acting as a flux to fill the voids of the sintered body, as confirmed by scanning electron microscopy (SEM) observations. The electrical conductivity is increased by the addition of Na3BO3, although the activation energy is also increased. Charge/discharge measurement revealed that Na3V2(PO4)3+Na3BO3pellets exhibit improved cyclability and optical observation indicated a different mechanism for the in-situ formation of the electrode from a Na3V2(PO4)3 pellet.

Original languageEnglish
Pages (from-to)244-249
Number of pages6
Issue number3
Publication statusPublished - 2021

All Science Journal Classification (ASJC) codes

  • Electrochemistry


Dive into the research topics of 'Effect of Na3BO3 Addition into Na3V2(PO4)3 single-phase all-solid-state batteries'. Together they form a unique fingerprint.

Cite this