Fig. 12.
a V–t curve of the 3-series EP-SCs charged by pressing 3-parallel EP-TENGs. Reprinted with permission from Ref. [24]. b Charging and discharging curves using the TENG at wind speed of 24.6 m s−1. Reprinted with permission from Ref. [25]. c Charging curves of another convoluted power device as an SLB using the produced electric energy by human walking. Reprinted with permission from Ref. [27]. d V–t curve of the PC-SCPU under charging mode and then instantaneously driving a wireless remote control. Reprinted with permission from Ref. [28]