Leah Soldner is pursuing her PhD in Chemical Engineering and joined the Bazant group in January 2025. She received her B.S. in Chemical Engineering from Caltech in 2024. As an undergraduate, Leah worked on reversibility of multielectron redox via industrial elements in high energy density Li-rich iron sulfide cathodes in Prof. Kimberly See’s lab at Caltech. She also optimized a sulfonamide based electrolyte in Prof. Yang Shao-Horn’s group at MIT and worked on methods development for determining anode tortuosity using EIS at an internship at Tesla. Leah is interested in the safety, sustainability, and durability of Li-ion batteries within the larger space of renewable energy and electrochemistry. She is an MIT Presidential Fellow and currently hoping to study nondestructive battery health and lifetime diagnostics using acoustic methods.