▎ 摘　　要

The rapid development of intelligent technology puts forward higher requirements for portable and flexible energy storage devices. In this paper, nitrogen and oxygen co-doped graphene quantum dots were used as electrode material of flexible planar micro-supercapacitors (PMSCs) and the electrode/gap width was 6 mu m/2 mu m. Electrochemical performance of the flexible devices was investigated at different bending angles with scan rates of 0.01 V/s to 10000 V/s. When bending 75 degrees, the area capacitance and the energy density were 2.61 mu F cm(-2) and 0.36 nWh cm(-2) at the scan rate of 0.01 V/s, and the power density was 173.66 mu W cm(-2) at the scan rate of 10000 V/s. When bending 0 degrees, the area capacitance and energy density were the same as that when bending 75 degrees, and the power density was 198.36 mu w cm(-2). The output current of the two flexible devices was 200 mu A when bending 75 degrees and 250 mu A when bending 0 degrees. The capacitance retention was 87.5% when bending 75 degrees and 90.4% when bending 0 degrees at the scan rate of 500 V/s after 10000 cycles. The results indicated that the bending has little effect on the electrochemical performance of the flexible PMSCs.