Sn nanoparticles@nitrogen-doped carbon nanofiber composites as high-performance anodes for sodium-ion batteries

Abstract

Sn nanoparticles on nitrogen doped carbon nanofibers (Sn@NCNFs) composites have been synthesized by electrostatic spinning technique and used as the anode of sodium-ion batteries (SIBs) with the capacity of 390 mA h g−1 at 1 C for over 1000 cycles.

A High‐Rate and Ultrastable Sodium Ion Anode Based on a Novel Sn4P3‐P@Graphene Nanocomposite

“…[1][2][3][4][5] Phosphorus [6][7][8][9][10][11][12][13][14] and tin [15][16][17][18][19][20][21][22][23] have been intensively investigated as the anode materials for Na-ion batteries due to their high capacities upon alloying with Na (Na 3 P: 2596 mA h g −1 , Na 15 Sn 4 : 847 mA h g −1 ). [1][2][3][4][5] Phosphorus [6][7][8][9][10][11][12][13][14] and tin [15][16][17][18][19][20][21][22][23] have been intensively investigated as the anode materials for Na-ion batteries due to their high capacities upon alloying with Na (Na 3 P: 2596 mA h g −1 , Na 15 Sn 4 : 847 mA h g −1 ).…”

“…As a result, upon repetitive dis-/charge, it undergoes irreversible and adverse pulverization of active materials and loss of electrical conduction and eventually the battery failure. Sha et al [23] fabricated Sn nanoparticles@N-doped carbon nanofiber which achieved a capacity of 390 mA h g −1 at 0.847 A g −1 over 1000 cycles. Very recently, Li et al [14] demonstrated a red P@MOF (metal-organic framework) derived N-doped microporous carbon exhibiting a capacity of 450 mA h g −1 at 1 A g −1 after 1000 cycles.…”

Recent Progress in Rechargeable Sodium‐Ion Batteries: toward High‐Power Applications

“…It is extensively proved that the rational and engineered design of nanostructured electrodes with carbon matrix decoration and heteroatom substitution could considerably improve the performance of Sn anode. In this respect, Sn–carbon nanotube (CNT) nanopillar arrays, yolk–shell Sn/C eggette‐like nanocomposites and Sn nanoparticles@nitrogen‐doped carbon nanofiber (Sn@NCNFs) have been developed in succession. Ultrasmall Sn nanoparticles (≈8 nm) homogeneously embedded in spherical carbon network (denoted as 8‐Sn@C) was prepared using an aerosol spray pyrolysis method, and delivered maximum desodiation capacities of 134 and 64 mAh g −1 at 2000 and 4000 mA g −1 , respectively.…”

Carbon‐Based Alloy‐Type Composite Anode Materials toward Sodium‐Ion Batteries

“…Similarly, other elements such as TiO 2 , SnO 2 , Cu, MoS 2 , and Sb accompanied with Sn encapsulated by carbonaceous matrix acting as a very good stress reliever during alloying mechanism resulted in outstanding anode composites for SIBs . During the last few years, several types of other carbonaceous materials have been explored like mesoporous carbon matrix (CMK‐3), natural wood fibers, N‐doped carbon fibers, carbon nanotubes (CNTs), carbon nanosphere, and graphite; thereby obtaining attractive coulombic efficiencies at different currents in SIBs. The observed significant differences should be noted in the electrochemical performances of the as‐prepared composite and bare anode.…”