Room‐Temperature Synthesis of Mesoporous Sn/SnO₂ Composite as Anode for Sodium‐Ion Batteries

Abstract

A mesoporous Sn/SnO 2 composite has been synthesized by a self-templating pore formation process at room temperature without any external templates. When evaluated as an

Ultrahigh rate binder-free Na3V2(PO4)3/carbon cathode for sodium-ion battery

“…In addition, a more positive potential of Na/Na + compared with Li/Li + ( −2.71 V versus −3.04 V) leads to a narrower electrochemical window [2,8] . So far, the SIB anode materials have been widely studied including carbon compounds [4] , alloys [9] , transition metal oxides [10,11] , etc. The specific capacities of SIB anodes could reach a rather high value (e.g.…”

Tailored Carbon Anodes Derived from Biomass for Sodium-Ion Storage

“…Several types of anode materials have been suggested for the sodium-ion battery (SIB), including metals, metal oxides, organic materials, and numerous carbons. Anodes such as Sn, − SnO 2 , Co 3 O 4 , Sb, − SbO x , P, , Si, and CuO , exhibit high specific capacities; however, large volume expansion and pulverization continue to plague metal- and metal-oxide-based electrodes. Organic compounds such as sodium terephthalate (Na 2 C 8 H 2 O 4 ) offer high flexibility in electrode designs, but suffer from insufficient electron conductivity…”

SnO2 as Advanced Anode of Alkali‐Ion Batteries: Inhibiting Sn Coarsening by Crafting Robust Physical Barriers, Void Boundaries, and Heterophase Interfaces for Superior Electrochemical Reaction Reversibility

“…However, reported SnO 2 materials have generally exhibited much lower actual sodium storage capacities in the range of ≈300–600 mAh g −1 ( Table 2 ); this is normally attributed to the three main reasons in literature.…”

“…SnO 2 submicrorod arrays were grown in situ on nickel foam substrates via a hydrothermal route combined with an annealing process, that expressed enhanced cycling stability with a reversible capacity of 424 mAh g −1 which is 2.5 times higher than the bare SnO 2 NPs after 200 cycles at 100 mA g −1 . Benefiting from a stable porous structure, mesoporous Sn/SnO 2 composites synthesized via a facile room‐temperature self‐templating pore formation route retained a stable capacity of 372 mAh g −1 after 50 cycles at 50 mA g −1 …”