Binder-Free Cnt Cathodes for Li-O2 Batteries with More Than One Life
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Binder-Free Cnt Cathodes for Li-O2 Batteries with More Than One LifeData
2023-10-10Cita bibliográfica
Z. Su, I. Temprano, N. Folastre, V. Vanpeene, J. Villanova, G. Gachot, E. V. Shevchenko, C. P. Grey, A. A. Franco, A. Demortière, Binder-Free Cnt Cathodes for Li-O2 Batteries with More Than One Life. Small Methods 2024, 8, 2300452. https://doi.org/10.1002/smtd.202300452
Resumo
[Abstract]: Li-O2 batteries (LOB) performance degradation ultimately occurs through the accumulation of discharge products and irreversible clogging of the porous electrode during the cycling. Electrode binder degradation in the presence of reduced oxygen species can result in additional coating of the conductive surface, exacerbating capacity fading. Herein, a facile method to fabricate free-standing is established, binder-free electrodes for LOBs in which multi-wall carbon nanotubes form cross-linked networks exhibiting high porosity, conductivity, and flexibility. These electrodes demonstrate high reproducibility upon cycling in LOBs. After cell death, efficient and inexpensive methods to wash away the accumulated discharge products are demonstrated, as reconditioning method. The second life usage of these electrodes is validated, without noticeable loss of performance. These findings aim to assist in the development of greener high energy density batteries while reducing manufacturing and recycling costs.
Palabras chave
Binder-free
Electrochemistry
Li-O2 batteries
MWCNTs
Recyclable materials
Self-standing electrodes
X-ray nano-tomography
Electrochemistry
Li-O2 batteries
MWCNTs
Recyclable materials
Self-standing electrodes
X-ray nano-tomography
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© 2023 The Authors. Small Methods published by Wiley-VCH GmbH.
This is an open access article under the terms of the Creative Commons
Attribution-NonCommercial-NoDerivs License, which permits use and
distribution in any medium, provided the original work is properly cited,
the use is non-commercial and no modifications or adaptations are
made.
ISSN
2366-9608