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Measurement technology of the adhesion strength of thick composite electrodes for high-energy-density EV battery

Title
Measurement technology of the adhesion strength of thick composite electrodes for high-energy-density EV battery
Authors
Lee, Yong Min
DGIST Authors
Lee, Yong Min
Issue Date
2019-05-10
Citation
2019 IEEE Transportation Electrification Conference and EXPO Asia-Pacific
Type
Conference
Abstract
Abstract— To increase the energy density of lithium-ion batteries (LIBs) for electric vehi- cles (EVs), the loading level of composite electrodes should be maximized within the range al- lowed by the electrochemical performance. Futhermore, the speed of electrode production is getting faster to increase productivity. Under these harsh condition, to control the polymeric binder distribution within the composite electrode is very critical to ensure the reliablity of the composite electrodes and EV batteries having them. However, the conventional peel test cannot provide detail information on this challenging issue. That is why a new measurement technology is required for analyzing the binder distribution by measuring the adhesion strength within the composite elec- trode. In this work, a new tool, surface and interfacial cutting analysis system (SAICAS), is in- troduced to unveil those binder distribution state within the composite electrode. Some physical properties such as loading level, density, thickness, and composition are controlled in preparing various LIB electrodes. Thus, the reliability of this method is discussed and verified by precisely measuring the adhesive strength of the composite electrode at different locations.
URI
http://hdl.handle.net/20.500.11750/14465
Publisher
ITEC-ap
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 LAB2. Conference Papers


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