The Electrostatic Attraction and Catalytic Effect Enabled by Ionic–Covalent Organic Nanosheets on MXene for Separator Modification of Lithium–Sulfur Batteries

Abstract

The rapidly expanding demand for sustainable and clean energy systems has inspired continuous innovation on energy storage technologies and devices. [1,2] Lithium-sulfur

A Powerful One‐Step Puffing Carbonization Method for Construction of Versatile Carbon Composites with High‐Efficiency Energy Storage

“…[5][6][7][8] Currently, the scientific community is still eager for advanced carbon-based materials to achieve higher efficiency and better utilization of green energy. [9][10][11][12][13] To date, various carbonaceous materials (e.g., graphene, [14][15][16][17][18] carbon nanotubes, [19,20] C 60 , [21] carbon quantum dots [22] and carbon micro/nanofibers [23] ) and their composites have been explored and prepared by different methods including chemical vapor deposition, [23,24] chemical or electrochemical exfoliation, [25] and electrospinning, [26,27] but it is still a great challenge to fabricate versatile advanced carbon-based composites with controlled morphology, adjustable dimension and tunable composition by one-step synthesis process in large scale.The traditional preparation methods (e.g., direct annealing method, chemical vapor deposition (CVD) method, a sputtering method, hydrothermal/ solvothermal methods) for carbon and their composites are always multi-steps, which make it very difficult to precisely control morphology, dimension, and composition at the same time. [28][29][30] Meanwhile, limited by the equipment, the above methods are still suffering from high product cost and low yield, which further hinder their largescale commercial applications.…”

“…[5][6][7][8] Currently, the scientific community is still eager for advanced carbon-based materials to achieve higher efficiency and better utilization of green energy. [9][10][11][12][13] To date, various carbonaceous materials (e.g., graphene, [14][15][16][17][18] carbon nanotubes, [19,20] C 60 , [21] carbon quantum dots [22] and carbon micro/nanofibers [23] ) and their composites have been explored and prepared by different methods including chemical vapor deposition, [23,24] chemical or electrochemical exfoliation, [25] and electrospinning, [26,27] but it is still a great challenge to fabricate versatile advanced carbon-based composites with controlled morphology, adjustable dimension and tunable composition by one-step synthesis process in large scale.…”

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

“…The color contrast further shows that NF@VG could effectively confine the polysulfides in the cathode side. 50 Furthermore, the shuttle current of NF@VG–S cathode is 0.001 mA cm −2 , which is lower than that of CF–S and NF@VG–S cathodes (Fig. S22†).…”

Mechanism understanding for stripping electrochemistry of Li metal anode

“…Numerous methods have been proposed to address these problems including electrolyte additives, [34][35][36][37][38][39][40][41][42][43][44][45] artificial SEI, [46][47][48][49][50][51][52][53][54][55][56] superconcentrated electrolyte, [57][58][59][60][61][62][63][64][65][66][67][68][69][70] solid-state electrolyte (SSE), [71][72][73][74][75][76][77][78][79][80] functional membrane, [81][82][83][84]…”