Shape matters: SnP0.94 teardrop nanorods with boosted performance for potassium ion storage

Phosphorus doping induced the co-construction of sulfur vacancies and heterojunctions in tin disulfide as a durable anode for lithium/sodium-ion batteries

“…1e) for SnS 2−x P x /RGO and SnS/RGO show two peaks for the P-C bond (134.4 eV) 43 and P 5+ (139.1 eV). 44 In addition, an apparent shoulder peak presented at 130.4 and 131.1 eV can be assigned to the P-Sn bond. 45 The result indicates that some P atoms successfully replaced S atoms during the phosphating process, which is consistent with the results of XRD and EPR.…”

Constructing FePSe3–FeSe2 heterojunctions uniformly in a Ketjen black carbon matrix for superior potassium ion batteries

“…The charge process of the FePSe 3 -FeSe 2 /CIIPTCDA full cell over a potential range of 0.5-3.4 V corresponds to the discharge process of the FePSe 3 -FeSe 2 / C half-cell and the charge process of the PTCDA half-cell. 71 As shown in Fig. 7B, an FePSe 3 -FeSe 2 /CIIPTCDA full cell provides a discharge specic capacity of 87 mA h g −1 (based on the mass of the FePSe 3 -FeSe 2 /C anode) aer 200 cycles at a current density of 0.1 A g −1 .…”

State-of-art progress and perspectives on alloy-type anode materials for potassium-ion batteries

“…Therefore, research should be focused on Sn-based conversion-alloy anode materials such as oxides, sulfides and selenides. In addition, Sn-based binary alloy materials such as SnP 99 and SnSb 100 are also the focus of future research. 93 Copyright 2018, The Royal Society of Chemistry.…”