All-Printed
Substrate-Versatile Microsupercapacitors with Thermoreversible Self-Protection
Behavior Based on Safe Sol–Gel Transition Electrolytes
Version 2 2019-08-12, 12:04
Version 1 2019-08-12, 12:03
Posted on 2019-08-12 - 12:04
Thermal runaway has
always been a significant safety issue that high-performance electronic
devices urgently need to solve. These existing strategies are limited
by the lack of reversibility and low conductivity. Here, we propose
a novel thermoreversible self-protection microsupercapacitor (TS-MSC)
based on a thermoresponsive polymer electrolyte to prevent thermal
runaway. When heating above the low critical solution temperature
(LCST), a gelation process occurs in the smart electrolyte and effectively
inhibits the migration of ions, leading to a decreased specific capacitance and
an increased internal resistance of the MSC. However, the electrolyte
transforms to a solution state at room temperature in which ions can
freely migrate. Benefiting by sol–gel transition of the smart
electrolyte, the TS-MSCs can exhibit different electrochemical performances
at elevated temperatures, demonstrating an active method of achieving
thermoreversible and dynamic self-protection. In addition, 3D printing
technology and substrate versatility provide an attractive method
in the design of integrated micropower devices. Therefore, such functional
TS-MSCs offer a promising strategy to solve the safety issues of the
nowadays portable microelectronic devices.
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Ma, Shaoshuai; Shi, Yunhui; Zhang, Yan; Zheng, Liting; Zhang, Qian; Xu, Xinhua (2019). All-Printed
Substrate-Versatile Microsupercapacitors with Thermoreversible Self-Protection
Behavior Based on Safe Sol–Gel Transition Electrolytes. ACS Publications. Collection. https://doi.org/10.1021/acsami.9b09498
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AUTHORS (6)
SM
Shaoshuai Ma
YS
Yunhui Shi
YZ
Yan Zhang
LZ
Liting Zheng
QZ
Qian Zhang
XX
Xinhua Xu
KEYWORDS
All-Printed Substrate-Versatile MicrosupercapacitorsTS-MSCs offerthermoresponsive polymer electrolytemicropower devicesstrategygelation processsafety issuesmethodsolution temperaturesafety issueThermoreversible Self-Protection Behaviorsubstrate versatilitysolution stateelectrochemical performancesLCSTnovel thermoreversible self-protection microsupercapacitor3 D printing technologyroom temperature