fig2
![An overview of aqueous zinc-ion batteries based on conversion-type cathodes](https://image.oaes.cc/f86b8b04-5f0c-4a81-98e6-7f6e831f0579/4709.fig.2.jpg)
Figure 2. A: SEM images, elemental mapping, N2 adsorption-desorption isotherms and pore size distribution of KB-S composite. B: Thermogravimetry (TG) curves, X-Ray Diffraction (XRD) patterns and N2 adsorption-desorption isotherms of S@CNTs. C: Optical photographs, electronic conductivities and XRD patterns of S-Se solid solutions. Figures reproduced with permission from Luo et al.[41], Li et al.[44] and Li et al.[24].