fig3

Figure 3. (A) Schematic illustration of interdigitated structures via photolithography (reproduced with permission^[24]. Copyright 2014, Royal Society of Chemistry). (B) Schematic illustration of MBs produced via laser engraving (reproduced with permission^[28]. Copyright 2018, Royal Society of Chemistry). (C) Formation of nickel scaffold via plasma etching (reproduced with permission^[31]. Copyright 2013, Nature Publishing Group). (D) Fabrication of Zn-Ag₂O MB via screen printing (reproduced with permission^[35]. Copyright 2016, Wiley-VCH). (E) Schematic illustration of inkjet printing process (reproduced with permission^[40]. Copyright 2017, Elsevier). (F) 3D printing process (reproduced with permission^[46]. Copyright 2018, Wiley-VCH). MB: Microbattery.