Pomegranate-like Sn-Ni nanoalloys@N-doped carbon nanocomposites as high-performance anode materials for Li-ion and Na-ion batteries

Hybrid CuSn nanosphere-functionalized Cu/Sn co-doped hollow carbon nanofibers as anode materials for sodium-ion batteries

“…4b), suggesting the formation of the solid electrolyte interface (SEI) and the conversion of SnO x to Sn and Na 2 O (eqns (1) and (2)). 6 The large cathode peak between 0.01 V and 0.55 V results from the formation of the Sn–Na alloy (eqns (3) and (4)) and the embedding of Na + into the carbon. 45 In the subsequent cycles, the above two cathode peaks disappeared and two new cathode peaks emerged at 0.48 and 0.15 V, due to the conversion of SnO x into Sn and Na 2 O and the processes of Sn–Na alloying and Na + being embedded in carbon.…”

“…[1][2][3] Sodium-ion batteries (SIBs) are a potential alternative to LIBs and several SIBs with different anode materials have been reported because of the rich natural resources and low cost of sodium. [4][5][6][7] Compared with Li + , Na + possesses a larger ionic radius, higher molar mass and a less favorable redox potential. Therefore, SIBs often suffer from sluggish reaction kinetics and poor energy density.…”

A Scalable Dendritic Si‐Clad NiSn Anode via One‐Step Electrodeposition with Ultrahigh Areal Capacity for Micro Lithium‐Ion Battery

“…The peaks at 862.0 and 879.7 eV were identified as satellite peaks. [44,45] The peaks at 852.4 and 869.6 eV were indicative of the metallic state of Ni. [46,47] The Sn 3d spectrum, as depicted in Figure 2f, showed peaks at 484.5 eV (Sn 3d 5/2) and 492.9 eV (Sn 3d 3/2 ) related to metallic Sn.…”

Designing a Freestanding Electrode of Intermetallic Ni-Sn Alloy Deposit as an Anode for Lithium-Ion and Sodium-Ion Batteries

“…12 This drawback can be partially circumvented by designing (i) nanostructured morphology where the short diffusion path enhances Li-ion or Na-ion kinetics and alleviate structural deformation, 13 (ii) electrochemically activeinactive (Sn-M) intermetallics where the unreacted ductile phase (M=Ni, Co, Fe, etc.) [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] provide electronically conducting matrix and act as a buffer matrix to accommodate the volume changes of redox-active Sn matrix and (iii) freestanding 3D electrode framework with carbon fiber that provides mechanical integrity and electron conduction. 19,22,30 It has been reported earlier that electrodeposited Sn-Ni thin film on Cu sheets exhibits 650 mAh g −1 at the 70th cycle at 50 mA g −1 current density in LIB.…”