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Investigation of voltage and expansion hysteresis of Si-alloy-C/NMC622 pouch cells using dilatometry
Autor:
Philip Kargl, Verena Drews, Philip Daubinger, Oskar Schweighofer, Mario Marinaro, Guinevere A. Giffin, Margret Wohlfahrt-Mehrens, Alex Thaler
Publikováno v:
Journal of Power Sources. 548:232042
Silicon is a promising candidate to replace graphite as the anode active material for lithium-ion cells due to its high specific capacity. However, the material undergoes large volume changes upon lithiation causing mechanical stress and accelerated