Detail publikace

The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess

GHIGO, C. SOPHA, H. SEPÚLVEDA SEPÚLVEDA, L. HROMÁDKO, L. RODRIGUEZ PEREIRA, J. VACANDIO, F. DENOUE, K. MACÁK, J. DJENIZIAN, T.

Originální název

The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

anodes; energy storage; Li-ion microbatteries; TiO2 nanotubes

Autoři

GHIGO, C.; SOPHA, H.; SEPÚLVEDA SEPÚLVEDA, L.; HROMÁDKO, L.; RODRIGUEZ PEREIRA, J.; VACANDIO, F.; DENOUE, K.; MACÁK, J.; DJENIZIAN, T.

Vydáno

1. 10. 2024

Nakladatel

WILEY-V C H VERLAG GMBH

Místo

WEINHEIM

ISSN

2194-4296

Periodikum

Energy Technology

Ročník

12

Číslo

10

Stát

Spolková republika Německo

Strany počet

10

URL

https://onlinelibrary.wiley.com/doi/10.1002/ente.202400528

BibTex

@article{BUT189896,
  author="Clement {Ghigo} and Hanna Ingrid {Sopha} and Lina Marcela {Sepúlveda Sepúlveda} and Luděk {Hromádko} and Jhonatan {Rodriguez Pereira} and Florence {Vacandio} and Kylian {Denoue} and Jan {Macák} and Thierry {Djenizian}",
  title="The Role of Self-Organized TiO2 Nanotube Thickness on the Electrochemical Performance of Anodes for Li-Ion Microbatteriess",
  journal="Energy Technology",
  year="2024",
  volume="12",
  number="10",
  pages="10",
  doi="10.1002/ente.202400528",
  issn="2194-4296",
  url="https://onlinelibrary.wiley.com/doi/10.1002/ente.202400528"
}