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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Maier, Joachim
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Topics
Publications (9/9 displayed)
- 2023Lithium storage in titania films as a function of position: Unification of intercalation electrode and super-capacitor concepts
- 2021Roadmap on organic-inorganic hybrid perovskite semiconductors and devicescitations
- 2021Solid Electrolyte Interphase on Li/Na Anodes in Contact with Liquid Electrolytes
- 2021Effects of NiO addition on sintering and proton uptake of Ba(Zr,Ce,Y)O 3−δcitations
- 2019Atomic Structure Analysis of a Second Order Ruddlesden-Popper Ferrite-a High Resolution STEM Study
- 2018Mixed‐Conducting Perovskites as Cathode Materials for Protonic Ceramic Fuel Cells: Understanding the Trends in Proton Uptakecitations
- 2013Influence of Line Defects on the Electrical Properties of Single Crystal TiO2citations
- 2011Cu22Bi12S21Cl16-A mixed conductor with fast one-dimensional copper(I) ion transportcitations
- 2008How Is Oxygen Incorporated into Oxides? A Comprehensive Kinetic Study of a Simple Solid‐State Reaction with SrTiO3 as a Model Materialcitations
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document
Lithium storage in titania films as a function of position: Unification of intercalation electrode and super-capacitor concepts
Abstract
We carefully investigated the storage of lithium in titania films on various substrates as a function of thickness. The experiments enable us to precisely separate contributions from bulk and boundary storage. The battery capacity measurements are complemented by bias dependent measurements of impedance, yielding interfacial resistance as well as interfacial capacitance. Independent information on electron and Li distribution is gained by scanning transmission electron microscopy (STEM), electron energy loss spectroscopy (EELS), aberration-corrected annular-bright-field (ABF) STEM. As a result, we obtain the full picture in terms of equilibrium storage (lithium content) and charge carrier concentrations as a function of spatial coordinates with cell voltage as a parameter. More importantly, both bulk storage which obeys electroneutrality and boundary storage which follows the space charge picture can be traced back to a common thermodynamic conception, and are obtained from it as special cases. This corresponds to no less than a unification of intercalation storage and super-capacitive storage, which are usually considered as independent phenomena, the reason for this lying in the hitherto lack of an adequate defect-chemical and nanoionic picture.