Extremely Low Resistance of Li3PO4 Electrolyte/Li(Ni0.5Mn1.5)O4 Electrode Interfaces

Hideyuki Kawasoko, Susumu Shiraki, Toru Suzuki, Ryota Shimizu, Taro Hitosugi

研究成果: Article査読

21 被引用数 (Scopus)

抄録

Solid-state Li batteries containing Li(Ni0.5Mn1.5)O4 as a 5 V-class positive electrode are expected to revolutionize mobile devices and electric vehicles. However, practical applications of such batteries are hampered by the high resistance at their solid electrolyte/electrode interfaces. Here, we achieved an extremely low electrolyte/electrode interface resistance of 7.6 ω cm2 in solid-state Li batteries with Li(Ni0.5Mn1.5)O4. Furthermore, we observed spontaneous migration of Li ions from the solid electrolyte to the positive electrode after the formation of the electrolyte/electrode interface. Finally, we demonstrated stable fast charging and discharging of the solid-state Li batteries at a current density of 14 mA/cm2. These results provide a solid foundation to understand and fabricate low-resistance electrolyte/electrode interfaces.

本文言語English
ページ(範囲)27498-27502
ページ数5
ジャーナルACS Applied Materials and Interfaces
10
32
DOI
出版ステータスPublished - 2018 8 15

ASJC Scopus subject areas

  • 材料科学(全般)

フィンガープリント

「Extremely Low Resistance of Li<sub>3</sub>PO<sub>4</sub> Electrolyte/Li(Ni<sub>0.5</sub>Mn<sub>1.5</sub>)O<sub>4</sub> Electrode Interfaces」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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