In Situ, Time-Resolved Raman Spectromicrotopography of an Operating Lithium-Ion Battery

Yu Luo; Wen Bin Cai; Xue Kun Xing; Daniel Alberto Scherson

doi:10.1149/1.1627972

In Situ, Time-Resolved Raman Spectromicrotopography of an Operating Lithium-Ion Battery

Yu Luo^*, Wen Bin Cai, Xue Kun Xing, Daniel Alberto Scherson

^*Corresponding author for this work

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

32 Citations (Scopus)

Abstract

A Raman microscope has been coupled to a sealed optical chamber mounted on a two-dimensional linear translator to allow in situ acquisition of space-, and time-resolved spectra from a sharply defined edge of thin operating graphite/LiCoO₂ Li-ion battery exposing the anode (A), separator (S), and cathode (C), during charge and discharge along an axis normal to the layered A!S!C plane. Clear evidence was obtained for changes in the amount of Li⁺ within particles of graphite, and, to a lesser extent, of LiCoO₂, during battery discharge both as a function of position and time. Such time-resolved Raman spectromicrotopography measurements can provide means of assessing the validity of theoretical models aimed at simulating the flow of Li⁺ within Li⁺-batteries under operating conditions.

Original language	English
Journal	Electrochemical and Solid-State Letters
Volume	7
Issue number	1
DOIs	https://doi.org/10.1149/1.1627972
Publication status	Published - 2004 Feb 9
Externally published	Yes

ASJC Scopus subject areas

Chemical Engineering(all)
Materials Science(all)
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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10.1149/1.1627972

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abstract = "A Raman microscope has been coupled to a sealed optical chamber mounted on a two-dimensional linear translator to allow in situ acquisition of space-, and time-resolved spectra from a sharply defined edge of thin operating graphite/LiCoO2 Li-ion battery exposing the anode (A), separator (S), and cathode (C), during charge and discharge along an axis normal to the layered A!S!C plane. Clear evidence was obtained for changes in the amount of Li+ within particles of graphite, and, to a lesser extent, of LiCoO2, during battery discharge both as a function of position and time. Such time-resolved Raman spectromicrotopography measurements can provide means of assessing the validity of theoretical models aimed at simulating the flow of Li+ within Li+-batteries under operating conditions.",

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T1 - In Situ, Time-Resolved Raman Spectromicrotopography of an Operating Lithium-Ion Battery

AU - Luo, Yu

AU - Cai, Wen Bin

AU - Xing, Xue Kun

AU - Scherson, Daniel Alberto

PY - 2004/2/9

Y1 - 2004/2/9

N2 - A Raman microscope has been coupled to a sealed optical chamber mounted on a two-dimensional linear translator to allow in situ acquisition of space-, and time-resolved spectra from a sharply defined edge of thin operating graphite/LiCoO2 Li-ion battery exposing the anode (A), separator (S), and cathode (C), during charge and discharge along an axis normal to the layered A!S!C plane. Clear evidence was obtained for changes in the amount of Li+ within particles of graphite, and, to a lesser extent, of LiCoO2, during battery discharge both as a function of position and time. Such time-resolved Raman spectromicrotopography measurements can provide means of assessing the validity of theoretical models aimed at simulating the flow of Li+ within Li+-batteries under operating conditions.

AB - A Raman microscope has been coupled to a sealed optical chamber mounted on a two-dimensional linear translator to allow in situ acquisition of space-, and time-resolved spectra from a sharply defined edge of thin operating graphite/LiCoO2 Li-ion battery exposing the anode (A), separator (S), and cathode (C), during charge and discharge along an axis normal to the layered A!S!C plane. Clear evidence was obtained for changes in the amount of Li+ within particles of graphite, and, to a lesser extent, of LiCoO2, during battery discharge both as a function of position and time. Such time-resolved Raman spectromicrotopography measurements can provide means of assessing the validity of theoretical models aimed at simulating the flow of Li+ within Li+-batteries under operating conditions.

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In Situ, Time-Resolved Raman Spectromicrotopography of an Operating Lithium-Ion Battery

Abstract

ASJC Scopus subject areas

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