Sahil Masoom

Advisor: Gleb Yushin

will defend a Master’s thesis entitled,

VISCO-ELASTIC FLEXIBLE SOLID-STATE INORGANIC ELECTROLYTE FOR LI-ION BATTERIES

On

Tuesday, April 22nd at 12:30 p.m.
4404 Conference Room MRDC

and

 Virtually via MS Teams

https://teams.microsoft.com/l/meetup-join/19%3ameeting_Mzk4MGVmZTItNzU2Zi00YmQwLTkxY2YtNjU2ZTQ1NWQwMzJj%40thread.v2/0?context=%7b%22Tid%22%3a%22482198bb-ae7b-4b25-8b7a-6d7f32faa083%22%2c%22Oid%22%3a%2272c89781-b43b-440a-81e8-03a2c03d65ae%22%7d

Committee
            Prof. Gleb Yushin – School of MSE (advisor)
            Prof. Preet Singh – School of MSE

            Prof. Anju Toor – School of MSE

Abstract

The escalating demand for advanced energy storage solutions, driven by the proliferation of portable electronics, electric vehicles, and renewable energy integration, has positioned lithium-ion batteries (LIBs) as a cornerstone technology due to their high energy density, power density, and cyclability across a wide temperature range. However, the reliance on flammable liquid organic electrolytes in conventional LIBs introduces significant safety risks, including high vapor pressure and susceptibility to side reactions, gas evolution, and separator failure under stress or overheating. These limitations have spurred research into all-solid-state lithium-ion batteries (ASSLIBs), which employ solid-state electrolytes (SSEs) to enhance safety and energy density. SSEs, categorized into inorganic and organic types, offer distinct advantages: inorganic SSEs provide superior ionic conductivity and stability at high voltages but suffer from brittleness and mechanical incompatibility with electrode volume changes, while organic SSEs exhibit flexibility but require high operating temperatures and are less stable under high-voltage conditions. Recent advancements have explored polymer-inorganic hybrid SSEs to combine flexibility and conductivity, yet few studies have achieved purely inorganic SSEs with organic-like flexibility. This research focuses on developing a flexible inorganic SSE for ASSLIBs, exhibiting high ionic conductivity and a broad electrochemical stability window. Its electrochemical performance was assessed through a half-cell configuration, confirming its robustness and stability during extended charge-discharge cycling. This SSE not only addresses a key barrier in ASSLIB development but also provides a promising avenue for scalable commercialization of ASSLIB technology.