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On-chip microsupercapacitors (MSCs) compatible with on-chip geometries of integrated circuits can be used either as a separate power supply in microelectronic devices or as an energy storage or energy receptor accessory unit. In this work, we report the fabrication of flexible two-dimensional Ni(OH)2 nanoplates-based MSCs, which achieved a specific capacitance of 8.80 F/cm3 at the scan rates of 100 mV/s, losing only 0.20% of its original value after 10, 000 charge/discharge cycles. Besides, the MSCs reached an energy density of 0.59 mWh/cm3 and a power density up to 1.80 W/cm3, which is comparable to traditional carbon-based devices. The flexible MSCs exhibited good electrochemical stability when subjected to bending at various conditions, illustrating the promising application as electrodes for wearable energy storage.
This work was supported by the National Natural Science Foundation of China (No. 61377033).