Figure 4 | Scientific Reports

Figure 4

From: Synthesis of hierarchical porous carbon scaffold derived from red kidney bean peels for advanced Li–Se and Na–Se batteries

Figure 4

Electrochemical characterizations of Li–Se cells equipped with Se@ACRKB cathode. (a) CV plots of the cell during the initial nine cycles, obtained at a rate of 0.1 mV s−1. (b) Charging and discharging profiles of cell at 0.2 C, illustrating the shapes of the 2nd, 3rd, 100th, 200th and 400th cycles, respectively. (c) Rate capabilities of cell at various rates. (d) Cycle stability at 0.2 C for 400 cycles and (e) Long term cycle stability of battery at 1 C for 1000 cycles.

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