fig4

Figure 4. Performance comparison of HCEs and dilute electrolytes. (A) Initial charge/discharge curves of natural graphite in electrolytes with different concentrations. Reproduced with permission^[103] (copyright 2002, IOP Publishing). (B) Projected density of states of dilute and concentrated LiTFSA/AN electrolytes. Insets display the interface between the graphite electrode and electrolyte. Reproduced with permission^[45] (copyright 2019, Springer Nature Limited). (C) Rate performance of natural graphite||Li cells using a highly concentrated electrolyte (HCE) and commercial electrolyte. Reproduced with permission^[106] (copyright 2013, Royal Society of Chemistry). (D) Solvation structures in dilute electrolyte and HCE from -80 to 100 °C. Adapted with permission^[107] [copyright 2021, the author(s)].