Synthesis Tool for Next Generation Automotive Lithium-Ion Battery
Poster Number
7A
Research or Creativity Area
Engineering & Computer Science
Abstract
Electric vehicles (EVs) are vital to meeting global demands on climate change. Commercial Lithium-Ion Batteries (LIBs) have become the only viable energy storage technology for EVs due to their combination of high volumetric energy and power densities and good cycling stability. However, improvements in energy density have plateaued in the last five years as the conventional LIB anode technology based on Li intercalation into graphite approached its theoretical limit.
Silicon (Si) is a strong candidate for conversion type anode because of its ultrahigh energy density and the environmental prevalence of Si. However, the immense volume expansions (up to 400%) and contractions over repeated lithiation/ delithiation processes typically result in delamination and silicon loss. We address Si anode challenges by replacing immense amounts of Si with Si-containing nanoparticles incorporated into a porous, mechanically robust, electrically, and ionically conductive matrix.
This study presents the design and implementation of a Chemical Vapor Deposition (CVD) synthesis tool custom-tailored to produce Si nanostructures. This tool is a critical component in addressing the challenges of Si anodes. By overcoming the limitations of current LIB technologies, our work paves the way for more sustainable and high-performing energy solutions essential for the universal adoption of electric vehicles.
Location
Don and Karen DeRosa University Center (DUC) Poster Hall
Start Date
27-4-2024 10:30 AM
End Date
27-4-2024 12:30 PM
Synthesis Tool for Next Generation Automotive Lithium-Ion Battery
Don and Karen DeRosa University Center (DUC) Poster Hall
Electric vehicles (EVs) are vital to meeting global demands on climate change. Commercial Lithium-Ion Batteries (LIBs) have become the only viable energy storage technology for EVs due to their combination of high volumetric energy and power densities and good cycling stability. However, improvements in energy density have plateaued in the last five years as the conventional LIB anode technology based on Li intercalation into graphite approached its theoretical limit.
Silicon (Si) is a strong candidate for conversion type anode because of its ultrahigh energy density and the environmental prevalence of Si. However, the immense volume expansions (up to 400%) and contractions over repeated lithiation/ delithiation processes typically result in delamination and silicon loss. We address Si anode challenges by replacing immense amounts of Si with Si-containing nanoparticles incorporated into a porous, mechanically robust, electrically, and ionically conductive matrix.
This study presents the design and implementation of a Chemical Vapor Deposition (CVD) synthesis tool custom-tailored to produce Si nanostructures. This tool is a critical component in addressing the challenges of Si anodes. By overcoming the limitations of current LIB technologies, our work paves the way for more sustainable and high-performing energy solutions essential for the universal adoption of electric vehicles.
