En samling af videnskabelige artikler udgivet af DBS
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
In today’s lithium batteries, those cathodes are usually made of an orderly crystalline material, sometimes in a layered structure. When slight deviations from that perfect order are introduced, the battery’s efficiency generally goes down — so disordered materials have mostly been ignored in the search for improved battery materials.
Permanent link to this article: http://batteriselskab.dk/nyheder/unlocking-the-potential-of-cation-disordered-oxides-for-rechargeable-lithium-batteries.htm
