Tag: operando

In operando observation of sodium ion diffusion in a layered sodium transition metal oxide cathode material, P2 NaxCo0.7Mn0.3O2

In operando powder X-ray diffraction data reveals an unexpected structural evolution in a layered P2 type NaxCo0.7Mn0.3O2 material during cycling.

Permanent link to this article: http://batteriselskab.dk/artikel/videnskabelig/in-operando-observation-of-sodium-ion-diffusion-in-a-layered-sodium-transition-metal-oxide-cathode-material-p2-naxco0-7mn0-3o2.htm

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

Batteries perform better without the strain

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

Operando studies of battery materials

  To kick off the working group on “In-situ x-ray cells”  at the Danish Battery Symposium 2016, Lars Fahl Lundegaard and Dorthe Bomholdt Ravnsbæk held short presentations about different in situ cells for characterization of battery materials.

Permanent link to this article: http://batteriselskab.dk/arrangementer/praesentationer/operando-studies-of-battery-materials.htm