Effect of Li 3 BO 3 addition to NASICON-type single-phase all-solid-state lithium battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3

Akira Nishio, Atsushi Inoishi, Ayuko Kitajou, Shigeto Okada

Research output: Contribution to journalArticle

Abstract

All-solid-state Li-ion battery is expected as the post Li-ion battery because of its high reliability and safety. However, the biggest issue for the all-solid-state Li-ion battery is the interfacial resistance between electrode and electrolyte rather than the bulk ionic conductivity of the solid electrolyte. In order to reduce the interfacial resistance, we recently adopted a new concept, “single-phase all-solid-state battery”, which is made of a single material. In principle, single-phase all-solid-state battery has low interfacial resistance between the solid electrolyte and electrodes, because the solid electrolyte and electrodes are same material. Here, the electrochemical properties of single-phase all-solid-state battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 and the effect of Li 3 BO 3 additive as flux to Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 are shown. The pellet of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 with Li 3 BO 3 additive showed higher density by filling the voids of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 . As the result of the low electronic conductivity of Li 3 BO 3 , the overpotential was increased. However, the electron leakage was suppressed. On the other hand, the operation voltage and the reversible capacity were improved due to the high lithium-ionic conductivity of Li 3 BO 3 . It was found that Li 3 BO 3 additive is useful for the improvement of the single-phase battery.

Original languageEnglish
Pages (from-to)18-21
Number of pages4
JournalJournal of the Ceramic Society of Japan
DOIs
Publication statusPublished - Jan 1 2019

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Lithium batteries
lithium batteries
electric batteries
solid state
Solid electrolytes
solid electrolytes
Ionic conductivity
solid electrodes
Electrodes
ion currents
Electrochemical properties
Lithium
Electrolytes
ions
pellets
Fluxes
voids
safety
Electrons
leakage

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

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title = "Effect of Li 3 BO 3 addition to NASICON-type single-phase all-solid-state lithium battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3",
abstract = "All-solid-state Li-ion battery is expected as the post Li-ion battery because of its high reliability and safety. However, the biggest issue for the all-solid-state Li-ion battery is the interfacial resistance between electrode and electrolyte rather than the bulk ionic conductivity of the solid electrolyte. In order to reduce the interfacial resistance, we recently adopted a new concept, “single-phase all-solid-state battery”, which is made of a single material. In principle, single-phase all-solid-state battery has low interfacial resistance between the solid electrolyte and electrodes, because the solid electrolyte and electrodes are same material. Here, the electrochemical properties of single-phase all-solid-state battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 and the effect of Li 3 BO 3 additive as flux to Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 are shown. The pellet of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 with Li 3 BO 3 additive showed higher density by filling the voids of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 . As the result of the low electronic conductivity of Li 3 BO 3 , the overpotential was increased. However, the electron leakage was suppressed. On the other hand, the operation voltage and the reversible capacity were improved due to the high lithium-ionic conductivity of Li 3 BO 3 . It was found that Li 3 BO 3 additive is useful for the improvement of the single-phase battery.",
author = "Akira Nishio and Atsushi Inoishi and Ayuko Kitajou and Shigeto Okada",
year = "2019",
month = "1",
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doi = "10.2109/jcersj2.18150",
language = "English",
pages = "18--21",
journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",
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T1 - Effect of Li 3 BO 3 addition to NASICON-type single-phase all-solid-state lithium battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3

AU - Nishio, Akira

AU - Inoishi, Atsushi

AU - Kitajou, Ayuko

AU - Okada, Shigeto

PY - 2019/1/1

Y1 - 2019/1/1

N2 - All-solid-state Li-ion battery is expected as the post Li-ion battery because of its high reliability and safety. However, the biggest issue for the all-solid-state Li-ion battery is the interfacial resistance between electrode and electrolyte rather than the bulk ionic conductivity of the solid electrolyte. In order to reduce the interfacial resistance, we recently adopted a new concept, “single-phase all-solid-state battery”, which is made of a single material. In principle, single-phase all-solid-state battery has low interfacial resistance between the solid electrolyte and electrodes, because the solid electrolyte and electrodes are same material. Here, the electrochemical properties of single-phase all-solid-state battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 and the effect of Li 3 BO 3 additive as flux to Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 are shown. The pellet of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 with Li 3 BO 3 additive showed higher density by filling the voids of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 . As the result of the low electronic conductivity of Li 3 BO 3 , the overpotential was increased. However, the electron leakage was suppressed. On the other hand, the operation voltage and the reversible capacity were improved due to the high lithium-ionic conductivity of Li 3 BO 3 . It was found that Li 3 BO 3 additive is useful for the improvement of the single-phase battery.

AB - All-solid-state Li-ion battery is expected as the post Li-ion battery because of its high reliability and safety. However, the biggest issue for the all-solid-state Li-ion battery is the interfacial resistance between electrode and electrolyte rather than the bulk ionic conductivity of the solid electrolyte. In order to reduce the interfacial resistance, we recently adopted a new concept, “single-phase all-solid-state battery”, which is made of a single material. In principle, single-phase all-solid-state battery has low interfacial resistance between the solid electrolyte and electrodes, because the solid electrolyte and electrodes are same material. Here, the electrochemical properties of single-phase all-solid-state battery based on Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 and the effect of Li 3 BO 3 additive as flux to Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 are shown. The pellet of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 with Li 3 BO 3 additive showed higher density by filling the voids of Li 1.5 Cr 0.5 Ti 1.5 (PO 4 ) 3 . As the result of the low electronic conductivity of Li 3 BO 3 , the overpotential was increased. However, the electron leakage was suppressed. On the other hand, the operation voltage and the reversible capacity were improved due to the high lithium-ionic conductivity of Li 3 BO 3 . It was found that Li 3 BO 3 additive is useful for the improvement of the single-phase battery.

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