September 2009The SEM picture shows the surface of a graphite electrode after several cycles. The small graphite particles are covered with an incomplete surface layer. This surface layer may be a so called SEI (solid Electrolyte Interphase). The SEI is conductive for lithium ions and non-conductive for electrons. Thus, the degradation of the electrolyte inside a lithium ion battery is prevented. Picture submitted by J. Döllehttps://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/gallery-of-pictures-from-2009/september-2009/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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September 2009
The SEM picture shows the surface of a graphite electrode after several cycles. The small graphite particles are covered with an incomplete surface layer. This surface layer may be a so called SEI (solid Electrolyte Interphase). The SEI is conductive for lithium ions and non-conductive for electrons. Thus, the degradation of the electrolyte inside a lithium ion battery is prevented. Picture submitted by J. Dölle
