Solid-State Silica Ionogels for Lithium-Ion Batteries

Faculty Mentor

Dr. Ji Wu

Location

Russell Union Ballroom

Type of Research

On-going

Session Format

Poster Presentation

College

College of Science & Mathematics

Department

Biochemistry, chemistry and physics

Abstract

Lithium-ion batteries (LIBs) have achieved huge commercial success due to their high energy density, long calendar and cycle life, low self-discharge rate, etc. However, the electrolyte of commercial LIBs contains extremely flammable and toxic organic solvents. This study explores a novel electrolyte design that relies on the formation of a nonflammable, non-toxic, three-dimensional network to immobilize the electrolyte while maintaining efficient lithium-ion transport. This confinement may enhance electrochemical stability while preserving ionic conductivity and mechanical strength. Early-stage testing suggests encouraging behavior compared to conventional liquid systems. Initial electrochemical measurements indicate specific capacities on the order of 47 mAh g⁻¹, demonstrating measurable active material utilization within the developing solid-state ionogel system. Ongoing evaluation is focused on improving cycling performance, stability, and overall safety. This research contributes to the broader effort to design safer, high-voltage lithium-ion batteries for next-generation energy storage. LIBs have a spectrum of applications, ranging from portable power tools, electronic devices, electric vehicles and power grids. These results have the potential to guide further refinement of the ionogel composition and electrode–electrolyte interface to improve long-term performance.

Program Description

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Start Date

4-23-2026 2:00 PM

End Date

4-23-2026 4:00 PM

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Apr 23rd, 2:00 PM Apr 23rd, 4:00 PM

Solid-State Silica Ionogels for Lithium-Ion Batteries

Russell Union Ballroom

Lithium-ion batteries (LIBs) have achieved huge commercial success due to their high energy density, long calendar and cycle life, low self-discharge rate, etc. However, the electrolyte of commercial LIBs contains extremely flammable and toxic organic solvents. This study explores a novel electrolyte design that relies on the formation of a nonflammable, non-toxic, three-dimensional network to immobilize the electrolyte while maintaining efficient lithium-ion transport. This confinement may enhance electrochemical stability while preserving ionic conductivity and mechanical strength. Early-stage testing suggests encouraging behavior compared to conventional liquid systems. Initial electrochemical measurements indicate specific capacities on the order of 47 mAh g⁻¹, demonstrating measurable active material utilization within the developing solid-state ionogel system. Ongoing evaluation is focused on improving cycling performance, stability, and overall safety. This research contributes to the broader effort to design safer, high-voltage lithium-ion batteries for next-generation energy storage. LIBs have a spectrum of applications, ranging from portable power tools, electronic devices, electric vehicles and power grids. These results have the potential to guide further refinement of the ionogel composition and electrode–electrolyte interface to improve long-term performance.