In operando powder X-ray diffraction data reveals an unexpected structural evolution in a layered P2 type NaxCo0.7Mn0.3O2 material during cycling.
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Accommodating High Transformation Strains in Battery Electrodes via the Formation of Nanoscale Intermediate Phases
Virtually all intercalation compounds exhibit significant changes in unit cell volume as the working ion concentration varies. Using synchrotron radiation powder X-ray diffraction (PXD) and pair distribution function (PDF) analysis, we discover a new strain-accommodation mechanism.
Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/accommodating-high-transformation-strains-in-battery-electrodes-via-the-formation-of-nanoscale-intermediate-phases.htm
Using high-intensity X-rays to study the crystal structure of a common battery material while it charges and discharges, researchers have filled in new details about how mechanical strain hinders battery performance. These insights could help battery chemists tailor the composition of electrode materials to make better high-power batteries.
Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/batteries-perform-better-without-the-strain.htm
Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/operando-studies-of-battery-materials.htm