Figure 4
From: Energy harvesting thermocell with use of phase transition
(a) Schematic illustration of tertiary battery. Vcell, Vcathod, Vanode are the cell voltage, redox potentials of cathode and anode materials, respectively. (b) Charge curves of the NCF82 film at various temperatures. The charge rate was 0.6 C. (c) Charge curves of the NCF90 film at various temperatures. The charge rate was 0.4 C. Closed triangles in (b) and (c) represent the actual x values of the pre-oxidized films for the tertiary battery. (d) Schematic illustration of Vcell against Tcell. Tcu and Tcl are the upper and lower critical temperatures, respectively.
