Boosting the transport kinetics of free-standing SnS₂@Carbon nanofibers by electronic structure modulation for advanced lithium storage

Abstract

Tin-based materials with high capacity and long life are significant to the development of lithium-ion batteries (LIBs). Herein, free-standing Mg doped SnS2/CNFs (Mg-SnS2/CNFs) composites are prepared via electrospinning and subsequent...

Fast Energy Storage of SnS2 Anode Nanoconfined in Hollow Porous Carbon Nanofibers for Lithium‐Ion Batteries

“…c) A comparison of cycling performance with that of previously reported SnS 2 -based anodes in LIBs. References: MXene-decorated SnS 2 /Sn 3 S 4 , [51] Hierarchical porous carbon-SnS 2 -PAN, [50] CNT/SnS 2 @C, [55] SnS 2 /S-rGO, [59] Mg-SnS 2 /CNFs, [79] SnS 2 @C, [63] SnS 2 /graphene, [82] SnS 2 /N-doped graphene, [56] SnS 2 @C/CNF, [58] S-vacancy rich-SnS 2 , [22] Carbon-coated SnS 2 , [60] SnS 2 /graphene. [35] d) Long cycling performance of SnS 2 @N-HPCNFs and SnS 2 @N-HCNFs at a high current density of 20 C. e) Schematic illustration of the structure evolutions, Li-ions and electrons diffusion pathways of SnS 2 @N-HPCNFs.…”

Advanced Carbons Nanofibers‐Based Electrodes for Flexible Energy Storage Devices

“…Electronic Structure Engineering: Electronic structure is an inherent characteristic of materials, and its reasonable adjustment can significantly optimize electrocatalytic activity, durability and carrier transfer rate. The corresponding regulation strategies generally include doping heteroatoms, [103] introducing defects and hybridizing. [88] Doping heteroatoms (N, S, P, and B) in carbon-based materials can significantly improve conductivity and electrochemical reactivity through changing electron distribution, thereby increasing the storage capacity and rate performance of lithium ions.…”

“…Electronic structure is an inherent characteristic of materials, and its reasonable adjustment can significantly optimize electrocatalytic activity, durability and carrier transfer rate. The corresponding regulation strategies generally include doping heteroatoms, [ 103 ] introducing defects and hybridizing. [ 88 ]…”

Anchoring 1T/2H MoS2 nanosheets on carbon nanofibers containing Si nanoparticles as a flexible anode for lithium–ion batteries

“…LIBs have occupied a dominant position in the energy-storage field owing to their benefits of a high operating voltage, long cycle life, and low environmental pollution. [4][5][6] Nevertheless, the very low theoretical specific capacity (372 mA h g À1 ) of commercial graphite anode materials puts them behind most prominent anode materials and fails to meet the requirements of high energy density and high power density for LIBs. [7][8][9] Therefore, finding an appropriate anode material for flexible LIBs is needed to overcome the current difficulties and demands.…”