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Rational Interface Design For High-Performance All-Solid-State Lithium Batteries, Changhong Wang
Rational Interface Design For High-Performance All-Solid-State Lithium Batteries, Changhong Wang
Electronic Thesis and Dissertation Repository
All-solid-state lithium batteries (ASSLBs) have gained substantial attention owing to their excellent safety and high energy density. However, the development of ASSLBs has been hindered by large interfacial resistance originating from the detrimental interfacial reactions, poor solid-solid contact, and lithium dendrite growth. The research in this thesis aims at achieving high-performance ASSLBs via rational interface design and understanding the interfacial reaction mechanisms.
At the cathode interface, an ideal dual core-shell nanostructure was first designed. Moreover, single-crystal LiNi0.5Mn0.3Co0.2O2 (SC-NMC532) cathode was compared with polycrystalline NMC532, the former exhibits much enhanced Li+ diffusion kinetics …