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

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)18-21
ページ数4
ジャーナルJournal of the Ceramic Society of Japan
DOI
出版ステータス出版済み - 1 2019

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

フィンガープリント

「Effect of Li <sub>3</sub> BO <sub>3</sub> addition to NASICON-type single-phase all-solid-state lithium battery based on Li <sub>1.5</sub> Cr <sub>0.5</sub> Ti <sub>1.5</sub> (PO <sub>4</sub> ) <sub>3</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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