Journal
CHEMISTRY LETTERS
Volume 47, Issue 3, Pages 261-264Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.171069
Keywords
Thermocell; Ionic conduction; Seebeck coefficient
Categories
Funding
- JSPS KAKENHI [JP25220805, JP16H06513, 26708007, 26600026]
- JST PRESTO, Japan [JPMJPR141D]
- Grants-in-Aid for Scientific Research [17H03046, 26708007, 26600026] Funding Source: KAKEN
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A thermocell consisting of choline iodide/triiodide solid electrolyte is developed. Seebeck coefficient of the cell is -0.87 mV K-1 at ambient temperature, which sign is opposite to that of the aqueous I-1/I-3(-) cell. The ionic conductivity of I-3(-) doped choline iodide is higher than that of pure choline iodide by two to four orders of magnitude, reflecting high conductivity of I-3(1) in the solid electrolyte. The selective ionic conduction observed in the solid electrolytes provides a novel design principle for the thermoelectric conversion materials.
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