Structure-Performance Relationships of Lithium-Ion Battery Cathodes Revealed by Contrast-Variation Small-Angle Neutron Scattering
ORAL · Invited
Abstract
Understanding the link between how porous lithium ion battery (LIB) electrodes are manufactured and the structure-function relationships that determine the performance is critical to accelerating the development of emergent battery technologies with higher rate cycling and capacity. Porous electrodes are manufactured by suspending a mixture of micron-sized electrochemically active material, polymer binder, and carbon black (CB) in a solvent and depositing it onto a metallic current collector. The complex processing conditions encountered during formulation and coating create many challenges for developing quantitative structure-property relationships. Neutron scattering measurements, performed through collaborations at National Laboratories, are essential to discovering these relationships and exploiting them for lithium ion battery design. In this talk, I will describe our group's collaboration with Oak Ridge National Laboratory to develop unique sample environments and analysis methods for neutron scattering measurements applied to battery science.
*This material was based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award No. DE-SC-0022119. A portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The beam time was allocated to BL-6, EQ-SANS, on proposal number IPTS-30638. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science user facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
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Publication:Liu Q., Brenneis W., Nagy G., Doucet M., Lopez J., Richards, J. J.* (2024). Structure-Performance Relationships of Lithium-Ion Battery Cathodes Revealed by Contrast-Variation Small-Angle Neutron Scattering. In review.
