MODELING ELECTROCHEMICAL AND CHEMO-MECHANICAL PROCESSES IN ALL-SOLID-STATE LI-ION BATTERIES
Abstract
This project focuses on the fundamental electrochemistry and chemo-mechanical science that enables and accelerates the development of all-solid-state-battery (ASSB) technology using Li-metal anodes and composite ceramic cathodes. There is general agreement that ASSBs offer the potential for dramatic game-changing technology, including inherently safe operation and extraordinarily high energy density. However, significant scientific challenges must be overcome to realize the potential. As the concentrations of mobile Li and Li-ions vary within the polycrystalline electrodes and electrolytes, the atomic lattice-scale distortions cause locally high stresses, which are often concentrated around electrode-electrolyte interfaces. High stresses can lead to phase separation (decohesion) that can significantly degrade charge-transfer processes and permanently damage the battery. Battery performance depends on maintaining high-integrity interfacial microstructures.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502210053
Entities
People
- Robert J. Kee
Organizations
- Air Force Office of Scientific Research
- Colorado School of Mines
- United States Air Force