Stress engineering for crack and dendrite prevention in solid electrolytes via ion implantation
Year: 2025
Type: article
Abstract: Solid-state batteries represent a promising technology that offers safer and more densely packed energy storage. A primary cause of failure in solid-state cells is the penetration of metal dendrites through the solid electrolyte. Here, we report that fluorine-ion implantation can enhance the mechanical resistance of solid electrolyte Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 to dendrite propagation by inducing residual compressive stress in the subsurface of the electrolyte. Ion implantation modifies subsurface residual stress and also alters the electrolyte’s surface, resulting in multifunctional enhancement. The combined chemical and mechanical effects of ion implantation enable reversible lithium metal stripping and plating at elevated current densities while enhancing air stability and mitigating the formation of a harmful carbonate layer at the surface. This study provides new insights into a scalable dendrite-suppression strategy for designing solid-state batteries suitable for cycling at room temperature and low stack pressures.
Source: Cell Reports Physical Science
Authors: Charlotte Thomas, Wei Zhang, Matthew Ryan Chancey, Marco Di Michiel, Kaitlin Garman, Yangyang Wang, Stephen Harris, Donal P. Finegan, Yongqiang Wang, Chunmei Ban
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,620
Funders: National Science Foundation, U.S. Department of Defense, U.S. Department of Energy, Colorado School of Mines, Center for Integrated Nanotechnologies, European Synchrotron Radiation Facility, Office of Science, National Nuclear Security Administration, University of Colorado Boulder, National Defense Science and Engineering Graduate, Laboratory Directed Research and Development, Graduate School, University of Colorado Boulder, Lawrence Berkeley National Laboratory, Los Alamos National Laboratory
Awards: G1017065088, G1059478430, G1071216263, G1079818582, G1143651532, G1279347439, G1286236842, G1527848044, G1863003419, G213222014, G2795275917, G2900453181, G3083819904, G3783667269, G419881185, G42916606, G4501827968, MRI: Acquisition of an Imaging TOF-SIMS System for Multidisciplinary Earth, Energy, & Environmental Research, G498139845, G6410514744, G6467669079, G70659677, G7354628648, G7354887796, G7977574923, G8437677540, G8773387002, G8836748319, G969889393
OpenAlex ID: W4409253193