In-situ preparation of Nb2O5 coated Si nanoparticles with pseudocapacitive effect for high-rate lithium ion batteries

New insights into the electrochemical performance of precursor derived Si(Nb)OC composites as anode materials for batteries

“…19 It also reported that pseudocapacitance contributions arising from the niobium oxide nanoparticles and the silicon-niobium oxide interface enhance the electrochemical reaction kinetics and improve the fast charge storage. 20 Further a core shell structured Si nanoparticles@TiO 2 /C mesoporous micro-ber composite as an anode for LIBs have been reported high reversible capacity (1260 mA h g −1 ), and excellent rate capability (939 mA h g −1 , aer 25 cycles). 21 Polymer derived ceramics (PDC) such as silicon oxycarbides (SiOC), silicon carbonitrides (SiCN) have been well recognized for their characteristic amorphous structure that depends on the chemistry of the initial precursors and pyrolysis conditions.…”

“… 19 It also reported that pseudo-capacitance contributions arising from the niobium oxide nanoparticles and the silicon–niobium oxide interface enhance the electrochemical reaction kinetics and improve the fast charge storage. 20 Further a core shell structured Si nanoparticles@TiO 2 /C mesoporous micro-fiber composite as an anode for LIBs have been reported high reversible capacity (1260 mA h g −1 ), and excellent rate capability (939 mA h g −1 , after 25 cycles). 21 …”

TiNbO4‐coated industrial submicron Si anode for high‐performance Li‐ion batteries

“…18 Wei demonstrated ceramic phase was beneficial in enhancing the stability of Si and synthesized a Si@SiC@C structure which maintained a specific capacity of 980 mA h g −1 at a current density of 1 A g −1 after 800 cycles. 19 Recently, ceramics and oxides have drawn more attention to improve the cycle stability and initial coulombic efficiency of Si anode, such as nanoporous ZnO, 20 Si surface oxides, 21 SiO x , 22,23 TiO 2 , 17,24 Nb 2 O 5 , 25 and Si-O-C structures, 13 exhibiting excellent effect.…”