In Situ Raman Spectroscopy of Single Microparticle Li +-Intercalation Electrodes

Kaoru Dokko, Qingfang Shi, Ionel C. Stefan, Daniel Alberto Scherson*

*この研究の対応する著者

研究成果: Article査読

48 被引用数 (Scopus)

抄録

Modifications in the vibrational properties of a single microparticle of LiMn2O4 induced by extraction and subsequent injection of Li+ into the lattice have been monitored in situ via simultaneous acquisition of Raman scattering spectra and cyclic voltammetry data in 1 M LiClO4 solutions in ethylene carbonate (EC):diethyl carbonate (DEC) mixtures (1:1 by volume). Statistical analyses of the spectra in the range 15 < SOD < 45%, where SOD represents the state of discharge (in percent) of the nominally fully charged material, i.e., λ-MnO2, were found to be consistent with the coexistence of two distinct phases of lithiated metal oxide in agreement with information derived from in situ X-ray diffraction (XRD) measurements involving more conventional battery-type electrodes.

本文言語English
ページ(範囲)12549-12554
ページ数6
ジャーナルJournal of Physical Chemistry B
107
46
出版ステータスPublished - 2003 11月 20
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学

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