Ran Yi Email & Phone Number

Richland, Wa, Us

Developed silicon anodes.Designed and scaled up high nickel (NMC811 and Ni90) single crystal cathode for lithium ion batteries.Designed novel carbon anode with high capacity and stable cycling in full cells for sodium ion batteries.Evaluated multiple sources of materials from established manufacturers and start-ups.Designed and fabricated Si-based anodes with unique structure enabling low swell and high capacity.Developed key performance indicators (KPIs) to ensure reproducibility of materials and cell performance.Designed and built equipment from conception to completion for material scale-up.Performed failure analysis (FA) to understand the failure mechanism of electrode materials.Maintained effective alignment with the sponsor team by weekly meeting and daily technical discussion.Strong practices for developing design of experiments (DOE) and standard operating procedure (SOP).

Richland, Wa, Us

Richland, Wa, Us

University Park, Pa, Us

Designed and fabricated Si-based Li-ion full cells.Lead research activities and initiated the research plans for the Si anode sub-group.Coordinated and collaborated with other sub-groups for full cell fabrication.

1. Principal Investigator for a DOE SBIR project.2. Developed high-energy-density and high-power-density energy storage systems for EVs and PHEVs.

University Park, Pa, Us

Energy Nanostructure Laboratory, Department of Mechanical Engineering1. Synthesis and Characterization of Structured Si-Carbon Nanocomposite Anodes and Functional Polymer Binders• Designed and synthesized novel Si-based Li-ion batteries anode materials• Developed gas phase deposition technique used for surface modification of Si materials• Investigated the structure, composition and physical properties and evaluated electrochemical performances of all prepared anode materials• Explored fundamental aspects such as SEI formation, material morphology, structure and composition and their influence on electrochemical performances2. Evaluating Graphene Materials for Supercapacitor Applications• Fabricated electrodes using graphene materials with controlled active materials loading• Evaluated electrochemical performance of supercapacitors in two-electrode configuration at aqueous and non-aqueous electrolytes• Correlated the supercapacitor performance with electrode thickness and composite such as binder and carbon additives

University Park, Pa, Us

Assisted two professors with a junior level Thermodynamics course. Graded homework and answered student questions during office hours. Prepared sample questions and led exam preparation sessions for students.

1. Developed Si-based electrodes for high-energy Li-ion batteries.2. Fabricated and evaluated pouch cells.

Pittsburgh, Pa, Us

1. Developed graphene-based electrodes with optimized formulation for supercapacitors.2. Fabricated and evaluated the electrochemical performance of supercapacitors.

Doctor Of Philosophy (Phd), Mechanical Engineering

Master Of Engineering (M.Eng.), Materials Science

Bachelor Of Engineering (B.Eng.), Materials Science And Engineering