Reflow Soldering-Resistant Solid-State 3D Micro-Supercapacitors Based on Ionogel Electrolyte for Powering the Internet of Things - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of The Electrochemical Society Année : 2020

Reflow Soldering-Resistant Solid-State 3D Micro-Supercapacitors Based on Ionogel Electrolyte for Powering the Internet of Things

Résumé

The fabrication of all solid-state 3D micro-supercapacitor is challenging for powering connected and miniaturized emerging electronics devices in the frame of the future Internet of Things paradigm. Here we highlight the design of a specific solid electrolyte based on ethylmethylimidazolium bis(trifluoromethanesulfonate)imide confined within polyvinylidenefluoride which enables to meet the requirements of safety, easy packaging, and leakage free 3D micro-supercapacitors. This ionogel-based microdevice (2 mm × 2 mm footprint area) exhibits good cycling stability over 30 000 cycles with an areal energy density of 4.4 μWh.cm−2 and a power density of 3.8 mW.cm−2. It can also sustain the high temperature reflow soldering process (∼250 °C–5 min) without damage, which is performed to directly bond surface mounted miniaturized devices onto printed circuit boards. This strategy not only provides a reference for the design of high-performance 3D interdigitated micro-supercapacitors, but also paves the way to their further implementation in miniaturized electronic chips for Internet of Things applications.
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Dates et versions

hal-03115423 , version 1 (20-05-2022)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Citer

B. Asbani, Botayna Bounor, K. Robert, C. Douard, L. Athouël, et al.. Reflow Soldering-Resistant Solid-State 3D Micro-Supercapacitors Based on Ionogel Electrolyte for Powering the Internet of Things. Journal of The Electrochemical Society, 2020, 167 (10), pp.100551. ⟨10.1149/1945-7111/ab9ccc⟩. ⟨hal-03115423⟩
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