fig16

Figure 16. (A) Charge-discharge profiles of PSn for 500 cycles. (B) Cycling performance of PSn. Reproduced with permission^[161] (Copyright 2016, Elsevier). (C) Comparison of voltage and specific capacity of a full battery. (D) XRD patterns of porous Sn/Cu anode at different states during the first cycle €. (F) Refined crystal structures of intermediates, NaSn₃, NaSn, Na₉Sn₄, and Na₁₅Sn₄, in discharging process. Reproduced with permission^[162] (Copyright 2018, Wiley-VCH Verlag GmbbH & Co.). (G) In situ XRD patterns of microsized Sn during the first cycle. Reproduced with permission^[164] (Copyright 2016, Wiley-Blackwell).