“…9–11 Meanwhile, the insufficient energy density of supercapacitors limits their applications in miniaturized electronics. 12–15 Compared with traditional LIBs and supercapacitors, lithium rechargeable batteries with hydrogel electrolytes are an excellent energy storage candidate due to their superior characteristics, such as safety, nontoxicity, decent energy/power density, appropriate operating voltage, and ability to withstand various deformation levels. 16–19 These advantages make hydrogel electrolyte-based LIBs ideal flexible energy-storage units for photo-rechargeable devices.…”