fig11

Figure 11. Typical power requirements for wearable devices. (A) Development of OCP and power density in BFCs and SABs; (B) Power consumption and voltage requirements of electronic modules in flexible electronics; (C) Power density considerations for viability of bioelectronics systems. Reproduced with permission^[155]. Copyright 2021, Wiley-VCH. OCP: Open-circuit potential; BFCs: biofuel cells; SABs: sweat-activated batteries.