Effects of nanostructuring on the bond strength and disorder in V2O5 cathode material for rechargeable ion-batteries

Wojciech Olszewski*, Irene Isturiz, Carlo Marini, Marta Avila, Masashi Okubo, Huiqiao Li, Haoshen Zhou, Takashi Mizokawa, Naurang Lal Saini, Laura Simonelli

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We have investigated the nanostructuring effects on the local structure of V2O5 cathode material by means of temperature dependent V K-edge X-ray absorption fine structure measurements. We have found that the nanostructuring largely affects V-O and V-V bond characteristics with a general softening of the local V-O and V-V bonds. The obtained bond strengths correlate with the specific capacity shown by the different systems, with higher capacity corresponding to softer atomic pairs. The present study suggests the key role of local atomic displacements in the diffusion and storage of ions in cathodes for batteries, providing important information for designing new functional materials.

本文言語English
ページ(範囲)15288-15292
ページ数5
ジャーナルPhysical Chemistry Chemical Physics
20
22
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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