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Issue 7, 2018
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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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Article information


Submitted
03 Feb 2018
Accepted
20 Apr 2018
First published
20 Apr 2018

Energy Environ. Sci., 2018,11, 1717-1722
Article type
Communication

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, 11, 1717
DOI: 10.1039/C8EE00365C

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