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Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices

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Abstract

Efficient thermal protection is of great significance for electronic devices. Herein, we demonstrate a novel thermoswitchable microsupercapacitor (TS-MSC) with the self-protection function utilizing the thermodynamic behavior of a smart electrolyte, a lithium salt–dissolved polymer sol, poly(N-isopropylacrylamide)-g-methylcellulose. Benefiting from the reversibility of ionic conductivity, the TS-MSC exhibited a broad temperature window (30–80 °C) and totally switch-off behavior at 80 °C, as well as excellent cycling stability upon heating/cooling cycles. In addition, the thermal protection of on-chip integrated MSCs in series or parallel was achieved by controlling a single TS-MSC connected with a computer CPU under different working conditions. Therefore, TS-MSCs are promising components in the thermal protection of practical on-chip electronic devices.

Graphical abstract: Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices

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Publication details

The article was received on 03 Feb 2018, accepted on 20 Apr 2018 and first published on 20 Apr 2018


Article type: Communication
DOI: 10.1039/C8EE00365C
Citation: Energy Environ. Sci., 2018, Advance Article
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    Thermoswitchable on-chip microsupercapacitors: one potential self-protection solution for electronic devices

    P. Zhang, J. Wang, W. Sheng, F. Wang, J. Zhang, F. Zhu, X. Zhuang, R. Jordan, O. G. Schmidt and X. Feng, Energy Environ. Sci., 2018, Advance Article , DOI: 10.1039/C8EE00365C

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