Lithium-ion battery technology is a critically important component of the emerging renewable energy infrastructure. Since battery technology was first commercialized in the 1990s, significant progress has been made in materials development, motivated by the prospect of higher energy and power densities, increased cycling longevity, and faster charging and discharging rates....
This dissertation presents a comprehensive study of thin-film LiMn2O4 (LMO) cathodes applied in lithium ion batteries (LIBs). The primary aim was to establish fundamental understanding of the relationship between interfacial LMO chemistry/electrochemistry and its detrimental drawback, i.e. fast capacity fade over long term cycling, and then develop effective mitigation methods....