Quantifying concentration distributions in redox flow batteries with neutron radiography.

ABSTRACT: The continued advancement of electrochemical technologies requires an increasingly detailed understanding of the microscopic processes that control their performance, inspiring the development of new multi-modal diagnostic techniques. Here, we introduce a neutron imaging approach to enable the quantification of spatial and temporal variations in species concentrations within an operating redox flow cell. Specifically, we leverage the high attenuation of redox-active organic materials (high hydrogen content) and supporting electrolytes (boron-containing) in solution and perform subtractive neutron imaging of active species and supporting electrolyte. To resolve the concentration profiles across the electrodes, we employ an in-plane imaging configuration and correlate the concentration profi

SUBMITTER: Jacquemond RR 

PROVIDER: S-EPMC11377732 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature