Scientists at Argonne National Laboratory and the UChicago Pritzker School of Molecular Engineering (UChicago PME) have identified the source of a long-standing problem in battery performance that has been linked to fading capacity, reduced lifespan, and, in rare cases, safety hazards such as fire.
Reporting their findings in Nature Nanotechnology, the research team describes how extremely small mechanical stresses can build up inside certain modern battery materials, eventually causing them to crack. The study also outlines practical approaches to reduce this damage in battery designs widely used for electric vehicles and other advanced technologies.
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