High-Performance Quasi-Solid Thermogalvanic Cells via Crown-Ether-Mediated Ion Migration

can be increased by introducing 18-crown-6, a cationic selective complexing agent, amplifying the thermodiffusion of the cation. Thanks to the synergistic combination of the Soret effect with the thermogalvanic effect, the corresponding Seebeck coefficient of the cell was greatly boosted from 1.26 to 2.22 mV/K. The mechanism was analyzed systematically. This work may offer a promising approach to promote the thermovoltage of TGC, facilitating low-grade energy harvesting.