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Title [sv]
nPDFSAS: Simultaneous polarized SANS and NPDF methods to study novel electrode nanomaterials
Title [en]
nPDFSAS: Simultaneous polarized SANS and NPDF methods to study novel electrode nanomaterials
Abstract [en]
Sustainable materials are paramount forfuture battery technologies, where nanostructured electrode materials show promising advantages as increased charge rates, capacity, and stability. Here, we will study the magnetism, morphology and the structure at the both the nanoscale and atomic scale using of iron oxide nanoparticles as model cathode materials for Na/Li batteries.We offer a timely and expert driven development of novel neutron instrumentation and methodologythrough the combination of polarized small-angle neutron scattering and powder diffraction including total scattering at the instrument DREAM at ESS.AdditionalX-ray studieswill be carried out at the WAXS-SAXS beamline CoSAXS at MAX IV. The simultaneous in-situ analysis on multiple length scalescurrently developed for x-ray instruments will reveal structural and magnetic changes occurring as response to internal density fluctuations of Na and Li during charge and discharge, local disorder, surface strain and defects during operandoconditions. Polarized SANS measurementsof the magnetic signature of IONPs during cycling in electrochemical cellwill provide a new in-situ tool for monitoring battery performance ultimately avoid possible failure mechanisms. Operando measurement with polarized neutrons on a time-of-flight source as DREAM is a new approach of demanding techniques unprecedented thus far. Preliminary work will be carried out at MLZ, ISIS, and ILL, and at MAX IV, SLS, and Petra III, respectively.
Principal InvestigatorSalazar Alvarez, German
Coordinating organisation
Uppsala University
Funder
Period
2020-01-01 － 2023-12-31
National Category
Condensed Matter PhysicsInorganic Chemistry
Identifiers
DiVA, id: project:6424Project, id: 2019-06117_VR

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