Visualization of the State-of-Charge Distribution in a LiCoO2Cathode by In Situ Raman Imaging
Authors:
- 25 July 2013
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 160 (10) , A1785-A1788
Abstract
High-speed and high-definition in situ Raman imaging was used to investigate the local state-of-charge (SOC) distribution in a LiCoO2 cathode during charge/discharge cycling. The local SOC varied significantly as a function of the location on the LiCoO2 electrode surface during charge/discharge processes and the SOC distribution was broadened after cycling. This change of the SOC distribution is caused by an increase in the electronic resistance between LiCoO2 particles. The in situ Raman imaging technique enabled observation of the Li+ transport in the LiCoO2 electrode during charge/discharge cycling.Keywords
This publication has 23 references indexed in Scilit:
- Heterogeneous behaviour of the lithium battery composite electrode LiFePO4Journal of Power Sources, 2013
- Local State‐of‐Charge Mapping of Lithium‐Ion Battery ElectrodesAdvanced Functional Materials, 2011
- Cathode materials modified by surface coating for lithium ion batteriesElectrochimica Acta, 2006
- Diagnostic Evaluation of Detrimental Phenomena in High-Power Lithium-Ion BatteriesJournal of the Electrochemical Society, 2006
- In Situ Raman Scattering Measurements of a LiMn[sub 2]O[sub 4] Single Crystal MicroelectrodeElectrochemical and Solid-State Letters, 2005
- In Situ Raman Microscopy of Individual LiNi0.8Co0.15Al0.05O2 Particles in a Li-Ion Battery Composite CathodeThe Journal of Physical Chemistry B, 2004
- Local-Probe Studies of Degradation of Composite LiNi[sub 0.8]Co[sub 0.15]Al[sub 0.05]O[sub 2] Cathodes in High-Power Lithium-Ion CellsElectrochemical and Solid-State Letters, 2004
- Raman microscopy as a quality control tool for electrodes of lithium-ion batteriesJournal of Power Sources, 2001
- Advanced in situ methods for the characterization of practical electrodes in lithium-ion batteriesJournal of Power Sources, 2000
- In situ Raman spectroscopic study of Li CoO2 electrodes in propylene carbonate solvent systemsJournal of Power Sources, 1997