In situ raman spectroscopic study of LixCoO2 electrodes in propylene carbonate solvent systems

Takashi Itoh; Hajime Sato; Tatsuo Nishina; Tomokazu Matue; Isamu Uchida

doi:10.1016/S0378-7753(97)02539-1

In situ raman spectroscopic study of Li_xCoO₂ electrodes in propylene carbonate solvent systems

Takashi Itoh, Hajime Sato, Tatsuo Nishina, Tomokazu Matue, Isamu Uchida

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

Simultaneous measurements of in situ Raman spectroscopy and cyclic voltammetry have been carried out for thin film electrodes of Li_xCoO₂ in propylene carbonate containing 1 M LiClO₄. The Raman lines of 485 and 587 cm_-1 observed at Li_xCoO₂ electrodes were attributed to the A_1g and E_g modes of the LiCoO₂, respectively. The Raman intensity of two lines changed drastically during the insertion/extraction of lithium ions. This effect can be explained by the reduction of the optical skin depth due to the conductivity change of Li_xCoO₂. Phase transition from Raman-active phase to Raman-inactive phase is also conceivable.

Original language	English
Pages (from-to)	333-337
Number of pages	5
Journal	Journal of Power Sources
Volume	68
Issue number	2
DOIs	https://doi.org/10.1016/S0378-7753(97)02539-1
Publication status	Published - 1997 Oct

Keywords

Cobalt
Lithium insertion
Lithium intercalation
Lithium secondary batteries
Optical skin depth
Raman spectroscopy

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/S0378-7753(97)02539-1

Cite this

@article{2efc0f7394a94188995982f53f44d6b5,

title = "In situ raman spectroscopic study of LixCoO2 electrodes in propylene carbonate solvent systems",

abstract = "Simultaneous measurements of in situ Raman spectroscopy and cyclic voltammetry have been carried out for thin film electrodes of LixCoO2 in propylene carbonate containing 1 M LiClO4. The Raman lines of 485 and 587 cm-1 observed at LixCoO2 electrodes were attributed to the A1g and Eg modes of the LiCoO2, respectively. The Raman intensity of two lines changed drastically during the insertion/extraction of lithium ions. This effect can be explained by the reduction of the optical skin depth due to the conductivity change of LixCoO2. Phase transition from Raman-active phase to Raman-inactive phase is also conceivable.",

keywords = "Cobalt, Lithium insertion, Lithium intercalation, Lithium secondary batteries, Optical skin depth, Raman spectroscopy",

author = "Takashi Itoh and Hajime Sato and Tatsuo Nishina and Tomokazu Matue and Isamu Uchida",

note = "Funding Information: This work was supported by Grants-in-Aid for Scientific Research (,No. 06 453 111 ) of The Ministry of Education, Science and Culture, and partly by Asahi Glass Foundation. The authors wish to thank D. Takahashi and S. Waki for their help in the fabrication of the electrodes and Dr T. Maeda of Ishinomaki Senshu University for his useful discussions and comments.",

year = "1997",

month = oct,

doi = "10.1016/S0378-7753(97)02539-1",

language = "English",

volume = "68",

pages = "333--337",

journal = "Journal of Power Sources",

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TY - JOUR

T1 - In situ raman spectroscopic study of LixCoO2 electrodes in propylene carbonate solvent systems

AU - Itoh, Takashi

AU - Sato, Hajime

AU - Nishina, Tatsuo

AU - Matue, Tomokazu

AU - Uchida, Isamu

N1 - Funding Information: This work was supported by Grants-in-Aid for Scientific Research (,No. 06 453 111 ) of The Ministry of Education, Science and Culture, and partly by Asahi Glass Foundation. The authors wish to thank D. Takahashi and S. Waki for their help in the fabrication of the electrodes and Dr T. Maeda of Ishinomaki Senshu University for his useful discussions and comments.

PY - 1997/10

Y1 - 1997/10

N2 - Simultaneous measurements of in situ Raman spectroscopy and cyclic voltammetry have been carried out for thin film electrodes of LixCoO2 in propylene carbonate containing 1 M LiClO4. The Raman lines of 485 and 587 cm-1 observed at LixCoO2 electrodes were attributed to the A1g and Eg modes of the LiCoO2, respectively. The Raman intensity of two lines changed drastically during the insertion/extraction of lithium ions. This effect can be explained by the reduction of the optical skin depth due to the conductivity change of LixCoO2. Phase transition from Raman-active phase to Raman-inactive phase is also conceivable.

AB - Simultaneous measurements of in situ Raman spectroscopy and cyclic voltammetry have been carried out for thin film electrodes of LixCoO2 in propylene carbonate containing 1 M LiClO4. The Raman lines of 485 and 587 cm-1 observed at LixCoO2 electrodes were attributed to the A1g and Eg modes of the LiCoO2, respectively. The Raman intensity of two lines changed drastically during the insertion/extraction of lithium ions. This effect can be explained by the reduction of the optical skin depth due to the conductivity change of LixCoO2. Phase transition from Raman-active phase to Raman-inactive phase is also conceivable.

KW - Cobalt

KW - Lithium insertion

KW - Lithium intercalation

KW - Lithium secondary batteries

KW - Optical skin depth

KW - Raman spectroscopy

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