LEO: Breakthroughs in Novel Li-ion Electrolytes that Enable Extreme Operations.
Abstract
The DoD has recently prioritized enhancing expeditionary capabilities in the Arctic. Rechargeable lithium-ion batteries (LIBs) experience reduced performance and even failure at temperatures below #15 ºC, limiting mission-critical excursions in contested geopolitical areas. New chemistries for Li+-conducting electrolytes are needed to overcome issues with the incumbent technology, where cellsencounter high charge-transfer resistance at high currents or freezing at low temperatures. The centerpiece of this proposed effortis to accelerate breakthroughs in complex electrolyte formulations by high-throughput experimentation (HTE) coupled with machine learning (ML). This proposed research will deepen our fundamental understanding of Li+ transport across the solid/liquid interface to develop next-generation electrolytes for high-performance LIBs that are capable of operating in extreme environments. Breakthroughs in electrolytes that can integrate seamlessly into current battery manufacturing processes will enable mission-critical applicationsto maintain U.S. Navy pre-eminence.The proposed work draws upon our expertise in battery development, fundamental electrochemistry,high-throughput experimentation, and computational techniques including ML and molecular dynamics simulations. Recognizing the extensive history of lithium-ion battery development spanning decades, we acknowledge the reliance on time-consuming experimental data collection. Our approach aims to expedite the discovery of novel electrolytes using HTE and computational methods, enabling the development of tools to enhance LIB technology while fostering chemistry and materials breakthroughs. The successful outcome of this project will position the U.S. Navy to swiftly prototype batteries for deployment in environmentally-challenging regions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 08, 2024
- Source ID
- N000142412436
Entities
People
- Yayuan Liu
Organizations
- Johns Hopkins University
- Office of Naval Research
- United States Navy