Enhancing Electrochemical Performance of Stretchable/Flexible Li-Ion Microbatteries by Tuning Microstructured Electrode Dimensions

Alban Albertengo; Mohamed Nasreldin; Marc Ramuz; Daniel Ochoa; Roger Delattre; Maxim Lepikhin; Alina Galeyeva; Fyodor Malchik; Thierry Djenizian

doi:10.1002/admi.202102541

Enhancing Electrochemical Performance of Stretchable/Flexible Li-Ion Microbatteries by Tuning Microstructured Electrode Dimensions

Alban Albertengo, Mohamed Nasreldin, Marc Ramuz, Daniel Ochoa, Roger Delattre, Maxim Lepikhin, Alina Galeyeva, Fyodor Malchik, Thierry Djenizian

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Increasing surface area between electrodes and electrolytes drastically has proven to improve electrochemical performances of microbatteries. 3D surface enhancement owing to the design of micropillar electrodes has permitted to fulfill this need while maintaining the same footprint area. Lithium nickel manganese oxide (cathode) and Lithium titanate (anode) micropillars with different sizes are successfully fabricated on aluminum foils by laser ablation technique and are then separated by a polymer electrolyte to form stretchable lithium-ion microbatteries. The electrochemical performance of full batteries composed of different micropillar sizes is studied in detail. The importance of controlling the width of micropillars is demonstrated and correlated with a simple theoretical model to optimize the battery properties. It is also shown that areal capacity values can be enhanced by improving the electrode/electrolyte interfaces using a simple treatment under vacuum.

Original language	English
Article number	2102541
Journal	Advanced Materials Interfaces
Volume	9
Issue number	13
DOIs	https://doi.org/10.1002/admi.202102541
State	Published - 4 May 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Funding

Support by the National Natural Science Foundation of China (Contract Grant No: 21871233) is gratefully acknowledged. Part of this work was done with the support of ID-Fab (Project funded by the European Regional Development Fund, the French state and local?authorities). The authors thank the Indo French Centre of the Promotion of Advanced Research and the French National Research Agency (ANR RAPID) for the financial supports. M.N. and A.A. contributed equally to this work.

Funders	Funder number
Agence Nationale de la Recherche
National Natural Science Foundation of China	21871233
Indo-French Centre for the Promotion of Advanced Research
European Regional Development Fund

Keywords

Li-ion microbatteries
electrode/electrolyte interface
microstructured electrodes
stretchable devices
wearable technologies

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10.1002/admi.202102541

Cite this

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abstract = "Increasing surface area between electrodes and electrolytes drastically has proven to improve electrochemical performances of microbatteries. 3D surface enhancement owing to the design of micropillar electrodes has permitted to fulfill this need while maintaining the same footprint area. Lithium nickel manganese oxide (cathode) and Lithium titanate (anode) micropillars with different sizes are successfully fabricated on aluminum foils by laser ablation technique and are then separated by a polymer electrolyte to form stretchable lithium-ion microbatteries. The electrochemical performance of full batteries composed of different micropillar sizes is studied in detail. The importance of controlling the width of micropillars is demonstrated and correlated with a simple theoretical model to optimize the battery properties. It is also shown that areal capacity values can be enhanced by improving the electrode/electrolyte interfaces using a simple treatment under vacuum.",

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AU - Ochoa, Daniel

AU - Delattre, Roger

AU - Lepikhin, Maxim

AU - Galeyeva, Alina

AU - Malchik, Fyodor

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Enhancing Electrochemical Performance of Stretchable/Flexible Li-Ion Microbatteries by Tuning Microstructured Electrode Dimensions

Abstract

Bibliographical note

Funding

Keywords

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