X-Ray Absorption Structural and Electrochemical Investigations of Novel Materials for Advanced Batteries and Ultracapacitors

摘要

The program objectives are as follows: Synthesize and characterize the chemistry and structure of a new class of tin-based amorphous oxides suitable for use as anode material in rechargeable Li-ion batteries. Provide a fundamental understanding of the intercalation mechanism of Li in this type of anode material during redox reactions. Examine the evolution of the electronic and atomic structure of electrodeposited nickel oxide thin films on graphite substrates and LiNiO2 cathode materials during electrochemical oxidation and reduction reactions. Establish structure-property relationships, which can be used as a guide to enhance the energy and power densities as well as stability of batteries and ultracapacitors.