Enhanced Ionic Motion in Solid Electrode Materials
High power density batteries require rapid equilibration of compositional inhomogeneities within the mixed ionic-electronic conducting electrodes. Large enhancement of the ionic motion may be observed for semi-conducting materials with a small number of highly mobile electronic species. Metallic conduction is a disadvantage. In order to meet the various conflicting requirements, the coulometric titration curve should show large slopes at completely charged and discharged states.
KeywordsCell Voltage Ionic Motion Chemical Diffusion Coulometric Titration Metallic Conduction
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