fig5
![Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review](https://image.oaes.cc/37f9fa8a-26c3-4c29-965c-1a23c647b2d4/em3035.fig.5.jpg)
Figure 5. (A) Schematic diagram of the adsorption and pore filling mechanism of sodium ions in nanopores based on NMR analysis. Copyright 2021, The Journal of Physical Chemistry C[42]. (B) Visualization of the “intercalation pore filling mechanism” of sodium ion storage in HC. Copyright 2015, American Chemical Society[43]. (C) Ion storage mechanisms of Li+ and K+ in LPG materials. Copyright 2019, Electrochimica Acta[45].