In-operando battery chemistry monitoring

Ref No: Gre-3747-19

Li-ion battery chemistry can currently only be monitored via a “quench and look” approach which is destructive to the battery. As battery chemistry and lifecycle processes are complex, a detailed understanding of the degradation mechanisms that occur in-operando (whilst the battery is in use) is vital for next generation battery development. Researchers at the University of Cambridge working on the Faraday Institution’s Battery Degradation project have invented a technique to bring Raman spectroscopy into the battery. Microlitre volumes (<25µl) of battery electrolyte can be sampled continuously and probed using Raman spectroscopy, using commercially available fibre optics.

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