Interfacial Processes in Lithium-Ion Batteries Using Advanced Characterization
Explore how interfacial layers in lithium-ion batteries affect their performance and stability. Use cutting-edge techniques like FIB-SEM alongside electrochemical testing to innovate safer, cost-effective battery technologies with environmentally friendly electrolytes.
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Project Description
Project Overview
This PhD focuses on the fundamental understanding of Solid Electrolyte Interphase (SEI) and Cathode Electrolyte Interphase (CEI) formation in lithium-ion batteries. It aims to optimize formation protocols to reduce production time and cost while improving battery performance and safety. The role of Atomic Layer Deposition (ALD) based protective coatings in controlling interphase formation and stabilizing electrode-electrolyte interfaces is central to the research.
What You Will Do
The research involves systematically investigating the interplay among formation conditions (e.g., current density, temperature, pressure), electrolyte composition, and coated electrode surfaces. It emphasizes the use of PFAS-free electrolyte systems. You will combine electrochemical testing with advanced characterization techniques including FIB-SEM for site-specific cross-sectioning and interphase analysis, supported by complementary microscopy and spectroscopic methods. The aim is to establish direct structure-function relationships linking formation protocols, coating properties, and interphase characteristics to battery performance.
Expected Outcomes
The project aims to develop optimized formation protocols and coating strategies that enhance lithium-ion battery stability, safety, and performance with reduced production costs and times. The direct correlations established between structure and function will enable advanced battery designs.
Why This Matters
Improved understanding and control of interphase layers in batteries are critical for developing safer, longer-lasting, and more sustainable energy storage solutions. This research supports the transition to cleaner technologies by advancing lithium-ion battery performance and reducing environmental impact through PFAS-free electrolytes.
Entry Requirements
Eligibility
Supervisor Profile
Dr. Swapna Ganapathy is a researcher specializing in interfacial processes and advanced characterization techniques for battery materials. Her work focuses on understanding and controlling the nanoscale interfaces in lithium-ion batteries to enhance performance, safety, and sustainability. She is recognized for integrating electrochemical methods with microscopy and spectroscopy to study battery interphases.