Electrochemical studies of Li-Ion extraction and insertion of LiMn2O4 single crystal

Kaoru Dokko; Matsuhiko Nishizawa; Mohamed Mohamedi; Minoru Umeda; Isamu Uchida; Junji Akimoto; Yasuhiko Takahashi; Yoshito Gotoh; Susumu Mizuta

doi:10.1149/1.1389875

Electrochemical studies of Li-Ion extraction and insertion of LiMn2O4 single crystal

Kaoru Dokko, Matsuhiko Nishizawa, Mohamed Mohamedi, Minoru Umeda, Isamu Uchida, Junji Akimoto, Yasuhiko Takahashi, Yoshito Gotoh, Susumu Mizuta

ENG - Finemechanics

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Abstract

A single crystal of LiMn₂O₄ (∼35 × 20 × 12 μm) was prepared by a flux method. The electrochemical properties of this material were investigated in a 1 M LiClO₄/propylene carbonate + ethylene carbonate solution using a microelectrode technique. A Pt microfilament was brought into contact with the single crystal, and cyclic voltammetry and potential step chronoamperometry measurements were successfully performed on this electrode. The single crystal of LiMn₂O₄ exhibited reversible behavior during the Li-ion extraction/insertion. A new peak was observed at 3.86 V vs. Li/Li⁺ which was not clearly reported so far on polycrystalline of LiMn₂O₄. The chemical diffusion coefficient of Li-ion into the LiMn₂O₄ crystal was estimated to be 10^-11 cm²/s.

Original language	English
Journal	Electrochemical and Solid-State Letters
Volume	4
Issue number	9
DOIs	https://doi.org/10.1149/1.1389875
Publication status	Published - 2001 Sept 1

ASJC Scopus subject areas

Electrochemistry
Materials Science(all)

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title = "Electrochemical studies of Li-Ion extraction and insertion of LiMn2O4 single crystal",

abstract = "A single crystal of LiMn2O4 (∼35 × 20 × 12 μm) was prepared by a flux method. The electrochemical properties of this material were investigated in a 1 M LiClO4/propylene carbonate + ethylene carbonate solution using a microelectrode technique. A Pt microfilament was brought into contact with the single crystal, and cyclic voltammetry and potential step chronoamperometry measurements were successfully performed on this electrode. The single crystal of LiMn2O4 exhibited reversible behavior during the Li-ion extraction/insertion. A new peak was observed at 3.86 V vs. Li/Li+ which was not clearly reported so far on polycrystalline of LiMn2O4. The chemical diffusion coefficient of Li-ion into the LiMn2O4 crystal was estimated to be 10-11 cm2/s.",

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TY - JOUR

T1 - Electrochemical studies of Li-Ion extraction and insertion of LiMn2O4 single crystal

AU - Dokko, Kaoru

AU - Nishizawa, Matsuhiko

AU - Mohamedi, Mohamed

AU - Umeda, Minoru

AU - Uchida, Isamu

AU - Akimoto, Junji

AU - Takahashi, Yasuhiko

AU - Gotoh, Yoshito

AU - Mizuta, Susumu

PY - 2001/9/1

Y1 - 2001/9/1

N2 - A single crystal of LiMn2O4 (∼35 × 20 × 12 μm) was prepared by a flux method. The electrochemical properties of this material were investigated in a 1 M LiClO4/propylene carbonate + ethylene carbonate solution using a microelectrode technique. A Pt microfilament was brought into contact with the single crystal, and cyclic voltammetry and potential step chronoamperometry measurements were successfully performed on this electrode. The single crystal of LiMn2O4 exhibited reversible behavior during the Li-ion extraction/insertion. A new peak was observed at 3.86 V vs. Li/Li+ which was not clearly reported so far on polycrystalline of LiMn2O4. The chemical diffusion coefficient of Li-ion into the LiMn2O4 crystal was estimated to be 10-11 cm2/s.

AB - A single crystal of LiMn2O4 (∼35 × 20 × 12 μm) was prepared by a flux method. The electrochemical properties of this material were investigated in a 1 M LiClO4/propylene carbonate + ethylene carbonate solution using a microelectrode technique. A Pt microfilament was brought into contact with the single crystal, and cyclic voltammetry and potential step chronoamperometry measurements were successfully performed on this electrode. The single crystal of LiMn2O4 exhibited reversible behavior during the Li-ion extraction/insertion. A new peak was observed at 3.86 V vs. Li/Li+ which was not clearly reported so far on polycrystalline of LiMn2O4. The chemical diffusion coefficient of Li-ion into the LiMn2O4 crystal was estimated to be 10-11 cm2/s.

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JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 9

ER -

Electrochemical studies of Li-Ion extraction and insertion of LiMn2O4 single crystal

Abstract

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