Cited 12 time in webofscience Cited 9 time in scopus

Elucidating the Polymeric Binder Distribution within Lithium-Ion Battery Electrodes Using SAICAS

Title
Elucidating the Polymeric Binder Distribution within Lithium-Ion Battery Electrodes Using SAICAS
Authors
Kim, Kyu ManByun, SeoungwooChoi, Jae CheolHong, Seung BumRyou, Myung HyunLee, Yong Min
DGIST Authors
Lee, Yong Min
Issue Date
2018-07
Citation
ChemPhysChem, 19(13), 1627-1634
Type
Article
Article Type
Article
Keywords
drying temperatureelectrodeslithium-ion batteriespolymeric bindersurface and interfacial cutting analysis systemCUTTING ANALYSIS SYSTEMTERM CYCLE LIFEADHESION PROPERTIESCOMPOSITE ELECTRODESSILICON ANODESPERFORMANCESEPARATORSTEMPERATURESURFACE
ISSN
1439-4235
Abstract
Polymeric binder distribution within electrodes is crucial to guarantee the electrochemical performance of lithium-ion batteries (LIBs) for their long-term use in applications such as electric vehicles and energy-storage systems. However, due to limited analytical tools, such analyses have not been conducted so far. Herein, the adhesion properties of LIB electrodes at different depths are measured using a surface and interfacial cutting analysis system (SAICAS). Moreover, two LiCoO2 electrodes, dried at 130 and 230 °C, are carefully prepared and used to obtain the adhesion properties at every 10 μm of depth as well as the interface between the electrode composite and the current collector. At high drying temperatures, more of the polymeric binder material and conductive agent appears adjacent to the electrode surface, resulting in different adhesion properties as a function of depth. When the electrochemical properties are evaluated at different temperatures, the LiCoO2 electrode dried at 130 °C shows a much better high-temperature cycling performance than does the electrode dried at 230 °C due to the uniform adhesion properties and the higher interfacial adhesion strength. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/9024
DOI
10.1002/cphc.201800072
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Lee, Yong Min Battery Materials & Systems LAB
  • Research Interests Battery; Electrode; Electrolyte; Separator; Simulation
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


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