MXene ink hosting zinc anode for high performance aqueous zinc metal batteries

Inorganic–Organic Double Network Ionogels Based on Silica Nanoparticles for High-Temperature Flexible Supercapacitors

“…The specific energy density and power density were calculated by the following equations: E = 1 2 C false( normalΔ V false) 2 M P = E t where E , C , Δ V , M , P , and t are the specific energy density at a given current density, capacitance, voltage window, combined mass of both the electrodes, specific power density, and discharging time at each specific energy, respectively.…”

“…Supercapacitors have emerged as the preferred energy storage device over batteries owing to their higher power density, shorter charging time, and ultra-high cycle stability. To function as next-generation electronic devices available in wearable devices, self-powered sensors, aerospace, and biomedical fields, however, supercapacitors are required to have tolerances to thermal, mechanical, and electrochemical stress as well as electrochemical performances including energy density and power density. − Recently, various novel electrode materials based on nanostructured metal oxides, layered transition metal chalcogenides, and conducting polymer-based hybrid materials have been developed to improve the electrochemical performances of supercapacitors. − Despite the importance of electrolytes on the electrochemical stability and kinetic performance, the development of functional electrolytes that can match the advanced electrode materials lags behind. , Moreover, traditional liquid electrolytes have been shown to be less effective for certain applications due to their mechanical instability, leakage, and safety-related concerns. To address these issues, polymer-based electrolytes, including solid polymer electrolytes and gel polymer electrolytes, , have been proposed. − …”

Anion Storage of MXenes

“…[ 11–13 ] The MXenes are featured with their high electrical conductivity, hydrophilicity, the tunable band gap of 0–1.8 eV, and fairly large interlayer distance of 1–1.5 nm [ 14–18 ] and allowed to apply for various energy storage devices such as electrochemical capacitors, [ 19,20 ] Li‐ion batteries, [ 21 ] Li–S batteries, [ 22 ] and Zn‐ion batteries. [ 23,24 ]…”

“…[11][12][13] The MXenes are featured with their high electrical conductivity, hydrophilicity, the tunable band gap of 0-1.8 eV, and fairly large interlayer distance of 1-1.5 nm [14][15][16][17][18] and allowed to apply for various energy storage devices such as electrochemical capacitors, [19,20] Li-ion batteries, [21] Li-S batteries, [22] and Zn-ion batteries. [23,24] Until now, the MXenes have been mainly applied for cation storage materials. Nonetheless, the applications of MXenes can be further expanded to the anion storage system, which can achieve a large energy density as well as exploit the full potentials of the MXenes.…”

Surface Engineering with Interfacial Poly(glutamic acid)/MXene/Aramid Nanofibers Protective Layer for Dendrite-Free Zinc Anodes

“…13,14 MXene, two-dimensional transition metal carbides, nitrides, or carbonitrides, is a promising inorganic coating material for zinc cathode due to its large specific surface area, good metallic conductivity, and abundant surface reactive groups. 15 The MXene coating could not only effectively enhance the stability of zinc cathode but also inhibit the corrosion and side reaction. Niu and co-workers 16 first constructed a homogeneous ultrathin MXene layer on the surface of Zn anodes by using an in situ spontaneously reducing/assembling strategy.…”