Surface characterization of the high voltage LiCoO2/Li cell by X-ray photoelectron spectroscopy and 2D correlation analysis

Park, Yeonju; Kim, Nam Hoon; Kim, Ja Young; Eom, In-Yong; Jeong, Yeon Uk; Kim, Min Soo; Lee, Sung Man; Choi, Hyun Chul; Jung, Young Mee

doi:10.1016/j.vibspec.2010.01.004

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Surface characterization of the high voltage LiCoO2/Li cell by X-ray photoelectron spectroscopy and 2D correlation analysis

Park, Yeonju;
Kim, Nam Hoon;
Kim, Ja Young;
Eom, In-Yong;
Jeong, Yeon Uk;
... Jung, Young Mee;
외 3명

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초록

In this study, we demonstrated the surface reaction in a LiCoO2/Li cell under high voltage condition and characterization of the composition and properties of electrode-electrolyte interface by 2D correlation analysis. 2D Raman correlation spectra revealed that the extraction of Li+ leads to the formation of surface components including Li2O and Co3O4 and structural distortion in hexagonal LiCoO2 structure. (C) 2010 Elsevier B.V. All rights reserved.

키워드

Lithium-ion battery; 20 correlation spectroscopy; Electrode-electrolyte interface; LiCoO2/Li; Charge-discharge process; High voltage; 2-DIMENSIONAL CORRELATION SPECTROSCOPY; LITHIUM-ION BATTERIES; ABSORPTION-SPECTROSCOPY; ELECTROCHEMICAL PERFORMANCE; THERMAL-STABILITY; LI1+XV3O8/LI CELL; RAMAN; DEINTERCALATION; ELECTRODES; MECHANISM

제목: Surface characterization of the high voltage LiCoO2/Li cell by X-ray photoelectron spectroscopy and 2D correlation analysis

저자: Park, Yeonju; Kim, Nam Hoon; Kim, Ja Young; Eom, In-Yong; Jeong, Yeon Uk; Kim, Min Soo; Lee, Sung Man; Choi, Hyun Chul; Jung, Young Mee

DOI: 10.1016/j.vibspec.2010.01.004

발행일: 2010-05-26

유형: Article; Proceedings Paper

저널명: Vibrational Spectroscopy

권: 53

호: 1

페이지: 60 ~ 63