SnP nanocrystals as anode materials for Na-ion batteries

Abstract

Sodium ion batteries based on SnP NCs and sodium(i) bis(fluorosulfonyl)imide electrolyte displayed high reversible capacities and cycling stability.

Self‐Supporting Electrode Composed of SnSe Nanosheets, Thermally Treated Protein, and Reduced Graphene Oxide with Enhanced Pseudocapacitance for Advanced Sodium‐Ion Batteries

“…The signals of Sn, Se, C, N, O elements can be clearly observed in the survey spectrum as shown in Figure a, in which N element original from thermally treated BSA on the SnSe nanosheets surface in accordance with the EDX elemental mapping. From the high‐resolution XPS spectrum of Sn 3d (in Figure b), a pair of Sn 3d peaks with binding energy of 486.9 and 495.4 eV is observed, which is consistent with the binding energy of Sn 3d 5/2 and Sn 3d 3/2 of Sn 2+ , respectively . As shown in Figure S3, two peaks for Se 3d3 / 2 and Se 3d5 / 2 are presented in the high‐resolution Se 3d spectrum.…”

“…From the high-resolution XPS spectrum of Sn 3d (in Figure 4b), a pair of Sn 3d peaks with binding energy of 486.9 and 495.4 eV is observed, which is consistent with the binding energy of Sn 3d 5/2 and Sn 3d 3/2 of Sn 2 + , respectively. [21] As shown in Figure S3, two peaks for Se 3d3 / 2 and Se 3d5 / 2 are presented in the high-resolution Se 3d spectrum. Moreover, the two peaks of self-supporting SnSe-TP@rGO film shift to a higher binding energy compared before reported [24] due to the strengthened electron interaction between thermally treated BSA and SnSe nanosheet.…”

“…[2][3][4][5][6][7][8] Nevertheless, the Na ionic radius is 1.55 times larger than that of lithium ion, so development of suitable electrode materials is significant challenge in the SIBs. Currently, owing to the low cost, natural abundance, environmental friendliness, and nontoxicity, tin-based anodes such as elemental tin, [9][10][11] tin oxide, [12][13][14] tin selenide, [15][16][17] tin sulfide [18][19][20] and tin phosphide, [21][22][23] have attracted intense attention as a promising anode candidate for SIBs. In particularly, because of high theoretical capacity and abundant resource, tin selenide (SnSe) with layered structure is thought of an appropriate anode material.…”

Colloidal Antimony Sulfide Nanoparticles as a High-Performance Anode Material for Li-ion and Na-ion Batteries

“…Lithium-ion batteries (LIBs) are the most well-known rechargeable electrochemical energy storage devices, and they are a key component of electric mobility and portable electronics [1][2][3][4] . Sodium-ion batteries (SIBs) are conceptually similar, and they have attracted enormous attention in recent years because of the higher natural abundance of sodium and more favorable distribution of sodium reserves compared with lithium [5][6][7][8][9][10][11][12][13] . Although graphite is currently the main commercialized anode material for LIBs, its low theoretical charge storage capacity (372 mAh g −1 ) limits its application in new generation batteries, requiring exploration of new electrode materials with higher capacity and stable cycling performance 14 .…”

“…Over the past decade, much attention has been focused on development of alternative anode materials for both LIBs and SIBs 12 . In particular, low-cost and environmentally benign Sb 2 S 3 anodes have attracted great interest because of their high capacities and relatively low redox lithiation/sodiation potentials .…”