Batteries are complex multicomponent devices. Their function and failure are governed by dynamic phenomena that couple electronic, chemical and structural transformations across multiple scales of time and space. Synchrotron light sources support a broad spectrum of advanced scattering, spectroscopic and imaging-based characterization tools that can probe many different facets of battery operation at the atomic, particle and electrode level. When applied in-situ, during electrochemical cycling, a detailed understanding of the reactions that govern battery operation and failure can be obtained. This presentation will describe new insights into the function and failure of iron conversion electrodes and NCA layered metal oxide electrodes developed through complementary operando pair distribution function, X-ray diffraction, and small angle X-ray scattering measurements.

Watching reactions with operando X-ray tools

253rd National Meeting (2017)

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