Conducted CC, CV, & CCCV cycling of commercially available Li-ion batteries on a Neware cycler at various C-rates and temperatures, to determine the effects on coulombic efficiency and measured capacity

Constructed and qualified anode and cathode Li-ion half-cells and full cells, conducted GITT, GEIS, and dQ/dV experiments to determine diffusion coefficients as a function of Li stoichiometry and degradation pathways

Subjecting various commercial alkaline electrolysis separators to controlled degradation in elevated temperature KOH baths, and characterizing changes in morphology, pore size, chemical composition, and polymer average MW and PDIs using SEM/EDS, NMR, and time-of-flight mass spectrometry

Designing electrochemical devices to measure hydrogen gas crossover and ionic conductivity of AE separators, using engineering and design principles, and design for manufacturing

Characterized electrochemical systems using EIS experiments, plotting and analyzing current responses on Bode and Nyquist plots, to determine solution resistance, charge transfer resistance, and double layer capacitance

Measured the charge transfer resistance in a lithium cobalt oxide coin cell while charging, to understand changes in thickness, charge transfer resistance, and pseudo capacitance of the solid electrolyte layer

Simulated charge cycling of a 2D vanadium redox flow battery model using COMSOL, to examine changes in current density distribution, concentration gradients, and electrolyte potential at different states of charge

Determined diffusive and electron transfer kinetic properties of iron ligand redox couples by potential-step chronoamperometry and cyclic voltammetry with Cottrell analysis and CV curve fitting

Determined the diffusion coefficients, exchange current densities, and Tafel slopes by using a rotating disk electrode to measure limiting currents at several rotation speeds

Determined OER catalyst performance by coating a gold electrode with Fe-NiOOH and performing cyclic voltammetry experiments to integrate catalyst redox peaks and analyze the Tafel kinetics of OER

Measured the HER performance of three different electrode materials by performing cyclic voltammetry experiments and analyzing the exchange current density and Tafel slope of the three different materials

Constructed a tool for discharging and charging lithium-ion batteries under constant current and constant voltage conditions with solid state circuit design and Arduino programming, to measure efficiency and degradation

Constructed and tested a potentiostat by wiring solid state circuit elements on a breadboard and programming an Arduino and python script, to finally verify its functionality on an electrochemical cell

Characterized organic additives for copper electrodeposition and determined adsorption coefficients, surface coverage concentrations, and diffusion coefficients for simulations in COMSOL.

Developed custom scripts in Python for automating data processing tasks, and trained seven employees to apply the scripts for their unique use cases, resulting in distributed data analysis efficiency gains across the company