Fig. 6: Proof of concept of ZTCCs at various modes.
From: Zinc ion thermal charging cell for low-grade heat conversion and energy storage
a Schematic drawing of the wearable ZTCCs. b Charge/discharge process at galvanostatic and/or thermal models. The inset shows the change of body heat and ambient temperature. c–e A smartwatch powered by two ZTCCs in series at c, d initial state and e the harsh condition.
