fig1

Figure 1. Next-generation batteries. (A) Battery operating mechanism; (B) Silk protein molecules act as a protective layer to mitigate dendrite formation in lithium metal anodes^[39]; (C) The 3D MOF-cellulose composite electrolyte enables high-performance solid-state LIBs^[41]; (D) Implantable zinc-oxygen battery for neural regeneration^[42]; (E) Implantable Na-oxygen battery^[43]; (F) A self-powered implantable electrostimulation device for bone fracture healing^[44]. Reproduced with permission from Springer Nature (B), MDPI (C), Wiley (D), Elsevier (E), National Academy of Sciences (F), respectively.