Dataset of a-LIG/MnO2 @a-LIG micro-supercapacitors

Fig. 1  Schematic diagram of the fabrication process of flexible planar a-LIG/MnO2 @a-LIG MSC on PI precursor.Fig. 2 (a) Raman spectra of LIG, a-LIG and a-LIG/MnO2. (b) XRD patterns of a-LIG and a-LIG/MnO2. (c) XPS survey, (d) C 1s spectra, (e) N 1s spectra and (f) Mn 2p spectra of a-LIG/MnO2.Fig. 3  SEM images of (a, d) LIG, (b, e) a-LIG, and (c, f)a-LIG/MnO2, where (d), (e) and (f) with high magnification.Fig. 4 TEM images of (a) LIG, (b) a-LIG and (c) a-LIG/MnO2. (d-f) HRTEM images of a-LIG/MnO2.Fig. 5  Electrochemical performance of a-LIG-X/MnO2 electrode treated with different KOH concentrations. (a) CV curves at scan rate of 20 mV/s. (b) GCD curves at current density of 1 mA/cm2. (c) Specific areal capacitance in the current density range of 1 to 5 mA/cm2.Fig. 6  Electrochemical performance of a-LIG/MnO2-Y electrode treated with different KOH concentrations. (a) CV curves at scan rate of 20 mV/s. (b) GCD curves at current density of 1 mA/cm2. (c) Specific areal capacitance in the current density range of 1 to 5 mA/cm2.Fig. 7  Electrochemical properties of a-LIG/MnO2 @a-LIG MSC. (a) CV curves at a scan rate of 10-100 mV/s. (b) GCD curves at current density range of 0.1-0.5 mA/cm2. (c) Nyquist plots of a-LIG/MnO2 @a-LIG MSC with/without KOH treatment, the inset shows the enlarged area. (d) Cycling stability at 0.2mA/cm2 current density.Fig. 8  Flexibility test of a-LIG/MnO2 @a-LIG MSC. (a) Bending photograph of the device. The angle marked as θ in the image is defined as the bending angle, (b) CV curves for different degrees of bending from 0°-180°, (c) GCD curves for different degrees of bending from 0°-180°, d) Ragone plots of a-LIG/MnO2 @a-LIG MSC and MSC devices with LIG-based electrodes of various electrolytes. Data are reproduced from ref. (N-LIG-SC), ref. (MoS2-LIG), (S-LIG-SC), ref. (LIG-O2), ref.(B-LIG), and ref. (LIG).Figure S1. Geometry of electrodes with inserted finger structureFigure S2. SEM images of (a) LIG, (b) a-LIG -280, (c) a-LIG -400, (d) a-LIG -560 and (e) a-LIG -1120.Figure S3. (a) Cyclic voltammetry curves of LIG, (b) a-LIG-0/ MnO2, (c) a-LIG-280/MnO2, (d) a-LIG-400/MnO2, (e) a-LIG-560/MnO2 and (f) a-LIG-1120/MnO2 in a potential window from 0 to 1.0 V with scan rates ranging from 10 to 100 mV/s.Figure S4. (a) Constant current charge/discharge curves for LIG, (b) a-LIG-0/MnO2, (c) a-LIG-280/MnO2, (d) a-LIG-400/MnO2, (e) a-LIG-560/MnO2 and (f) a-LIG-1120/MnO2 in the potential window from 0 to 1.0 V for a current density range of 1 to 5 mA/cm2.Figure S5. Cyclic voltammetry curves of (a) a-LIG/MnO2-150s, (b) a-LIG/MnO2-300s, (c) a-LIG/MnO2-600s and (d) a-LIG/MnO2-1000s in a potential window from 0 to 1.0 V with scan rates ranging from 10 to 100 mV/s.Figure S6. (a) Constant current charge/discharge curves for a-LIG/MnO2-150s, (b) a-LIG/MnO2-300s, (c) a-LIG/MnO2-600s and (d) a-LIG/MnO2-1000s in a potential window from 0 to 1.0 V for a current density range of 1 to 5 mA/cm2.Figure S7. Assembly of multiple devices in parallel and series configurations. (a) Single-stage and series CV curves of a-LIG/MnO2 @a-LIG at 10 mV/s scan rate. (b) Single-stage and series GCD curves of a-LIG/MnO2 @a-LIG at a scan rate of 0.1 mA/cm2. (c) Single-stage and parallel CV curves of a-LIG/MnO2 @a-LIG at a scan rate of 10 mV/s. (d) Single-stage and parallel GCD curves of a-LIG/MnO2 @a-LIG at 0.1 mA/cm2 scan rate.Table S1. Dimensional parameters of electrodes with finger insert structure.Table S2. Comparison of electrochemical performances for various laser-processed IMSC devices.