Enhancing Electrochemical Performance of Stretchable/Flexible Li-Ion Microbatteries by Tuning Microstructured Electrode Dimensions
Albertengo A. Nasreldin M. Ramuz M. Ochoa D. Delattre R. Lepikhin M. Galeyeva A. Malchik F. Djenizian T.
May 4, 2022John Wiley and Sons Inc
Advanced Materials Interfaces
2022#9Issue 13
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.
electrode/electrolyte interface , Li-ion microbatteries , microstructured electrodes , stretchable devices , wearable technologies
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Mines Saint-Etienne, Center of Microelectronics in Provence, Department of Flexible Electronics, Gardanne, F-13541, France
Al-Farabi Kazakh National University, Center of Physical-Chemical Methods of Research and Analysis, Tole bi str., Almaty, 96A, Kazakhstan
Mines Saint-Etienne
Al-Farabi Kazakh National University
10 лет помогаем публиковать статьи Международный издатель
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