fig5
Figure 5. Challenges in achieving high-energy-density electrode in Ni-based materials. (A) Variation of specific energy and volumetric energy density with respect to cathode areal capacity. Reproduced with permission[66]. Copyright 2023, Elsevier. (B) Schematic illustration comparing conventional electrode design with thick electrode design. (C) Key challenges associated with thick electrode configuration. Reproduced with permission[67]. Copyright 2019, Wiley-VCH. (D) Relationship between ionic resistance (Rion) and charge transfer resistance (Rct) as a function of electrode thickness. Reproduced with permission[70]. Copyright 2015, American Chemical Society. (E) Comparison of cycle performance between standard and thick electrode in terms of discharge capacity and areal capacity. Reproduced with permission[71]. Copyright 2020, Elsevier.