A Highly Durable, Transferable, and Substrate‐Versatile High‐Performance All‐Polymer Micro‐Supercapacitor with Plug‐and‐Play Function

Abstract

A highly durable high-performance all-polymer micro-supercapacitor with plug-and-play function is developed. Through the newly developed technology, these micro-supercapacitors can be transferred to any substrate with all functions well retained.

Advances on three‐dimensional electrodes for micro‐supercapacitors: A mini‐review

“…Particularly, the in‐plane electrodes configuration not only eliminates the separator and thus significantly reducing the size of MSC unit, but also narrows interspace between positive and negative electrodes to shorten the ionic diffusion distance . Moreover, its intriguing features of straightforward integratability, outstanding mechanical flexibility, good scalability, and ingenious deployments as well as precise tunability of electrodes pattern enable it to gain much popularity recently …”

“…9,10 Moreover, its intriguing features of straightforward integratability, [11][12][13][14] outstanding mechanical flexibility, [14][15][16][17][18] good scalability, [19][20][21][22] and ingenious deployments 23 as well as precise tunability of electrodes pattern enable it to gain much popularity recently. [24][25][26][27] Alternative to gravimetric normalization of performance, [28][29][30] the large areal/volumetric capacities are long-term scientific pursuits for MSCs, although high volumetric energy and power densities are readily achieved for the in-plane MSCs with thin films at present, 31-33 they still suffer from severely low areal energy density compared with the sandwich counterparts. 5,6 Additionally, in contrast to MBs, there is a considerable gap in energy storage capability for MSCs whatever their configurations are to fail to meet the growing demand for energy consumption of electronic components.…”

Axial heterostructure nanoarray as all‐solid‐state micro‐supercapacitors

“…Achieving lightweight, flexible, portable, and miniaturized energy units has always been a particularly important research goal in scientific research. Compared with the traditional sandwich structure of SC, energy storage devices represented by flexible micro‐supercapacitor (MSC) have received more attention from scientists . The shape of the MSC is mainly in the form of the planar micro‐finger electrode, which not only overcomes the obstacle that the electrolyte cannot fully wet the electrode material but also accelerates the ion shuttle between the positive and negative electrodes.…”

“…Compared with the traditional sandwich structure of SC, energy storage devices represented by flexible microsupercapacitor (MSC) have received more attention from scientists. [8][9][10][11] The shape of the MSC is mainly in the form of the planar micro-finger electrode, which not only overcomes the obstacle that the electrolyte cannot fully wet the electrode material but also accelerates the ion shuttle between the positive and negative electrodes. The advent of MSCs has changed the densely stacked structure of conventional SC electrode materials, making it possible to build thinner, lighter, and more portable micro-energy storage devices.…”

Electrochemical Double‐Layer Capacitor Energized by Adding an Ambipolar Organic Redox Radical into the Electrolyte

“…[1] However, their energy density is still much lower than rechargeable batteries. [3][4][5][6][7][8][9][10][11][12] One typical approach is to increase the efficient surface area of carbon materials for ions adsorption, [13][14][15][16][17][18] but which generally results in the reduction of tap density of electrodes.A nother is to modify the carbon materials with pseudo-capacitive materials (such as metal oxides and conductive polymers) to combine the adsorption capacitance and pseudo-capacitance, [19][20][21][22] but with the sacrifice of conductivity and stability of electrodes. [3][4][5][6][7][8][9][10][11][12] One typical approach is to increase the efficient surface area of carbon materials for ions adsorption, [13][14][15][16][17][18] but which generally results in the reduction of tap density of electrodes.A nother is to modify the carbon materials with pseudo-capacitive materials (such as metal oxides and conductive polymers) to combine the adsorption capacitance and pseudo-capacitance, [19][20][21][22] but with the sacrifice of conductivity and stability of electrodes.…”