The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152383" target="_blank" >RIV/00216305:26620/24:PU152383 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/24:39921806
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/ente.202400528" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/ente.202400528</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ente.202400528" target="_blank" >10.1002/ente.202400528</a>
Alternative languages
Result language
angličtina
Original language name
The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess
Original language description
Self-organized TiO2 nanotube (TNT) layers with different thicknesses are prepared by anodization of Ti foils and then characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical techniques to be used as potential anodes for Li-ion microbatteries. Electrochemical behaviors between 1 and 190 mu m thick electrodes, which are the thickest ever studied layers as electrode, have been evaluated by cyclic voltammetry (CV) and chronopotentiometry at various kinetics. The highest areal capacity is obtained for TNT layers of 190 mu m providing an initial discharge capacity of approximate to 5.3 mAh cm(-2) at C/10. At faster kinetics, the approximate to 80 mu m thick TNT layer reveals the best electrochemical behavior by offering 256 mu Ah cm(-2) at 5 C and a good stability for 200 cycles at C/5. The influence of the increasing thickness on the electrochemical performance at fast rates can be attributed to the uncomplete reaction of TNT layers with Li ions and the enhancement of the formation of a solid electrolyte interphase. It is also shown that a very thick electrode is not able to sustain long and very fast cycles due to the mechanical deformations occurring during the successive insertion/extraction of Li ions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20700 - Environmental engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Energy Technology
ISSN
2194-4288
e-ISSN
2194-4296
Volume of the periodical
12
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
„“-„“
UT code for WoS article
001273118200001
EID of the result in the Scopus database
2-s2.0-85198973881