Opening book details…
Can I read Impedance spectra of porous, composite intercalation electrodes: The origin of the low-frequency semicircles on EtoBox?
Impedance spectra of porous, composite intercalation electrodes: The origin of the low-frequency semicircles by M.D. Levi; D. Aurbach is a Engineering article available to read on EtoBox.
What is Impedance spectra of porous, composite intercalation electrodes: The origin of the low-frequency semicircles about?
Impedance spectra of composite, graphite electrodes, which are highly porous with a poor orientation of their particles show well-developed low-frequency semicircles (LFSs) with formally very high characteristic capacitances (about 160 mF cm -2 ), which cannot be rationalized on the basis of the porous electrodes models known from the literature. We use herein a new model (recently reported in full detail) considering two (or more) porous sublayers of different thicknesses, which readily reproduces the well-developed LFSs with very high characteristic capacitances (C LFS in the range from 0.05 to 5 F cm -2 using typical values of electrodes parameters, calculated from ω max ). A detailed analysis shows that the LFSs characterizing the impedance spectra of highly porous graphite electrodes, have a simple "geometric" meaning. They result from a parallel combination of the intercalation capacitance of the thinnest sublayer and the high, active resistance of the thicker layer.
Who reads Impedance spectra of porous, composite intercalation electrodes: The origin of the low-frequency semicircles?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- M.D. Levi; D. Aurbach
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)
- Published
- 2005
- Language
- EN
- Field
- Engineering (Physical Sciences)