期刊
APPLIED PHYSICS LETTERS
卷 107, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4928336
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资金
- Thermal and Electric Technology, Inc.
- Japan Science and Technology Agency
- Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [23684022]
- Grants-in-Aid for Scientific Research [23684022, 15K13513] Funding Source: KAKEN
We demonstrated that battery-type thermocells, which consist of two paste-type electrodes with the same active material and electrolyte, show the Seebeck effect. The magnitudes of electrochemical Seebeck coefficient (S) of the thermocells with several layered oxides were evaluated: -12.7 mu V/K for Na0.99CoO2, -29.7 mu V/K for Na0.52MnO2, -22.4 mu V/K for Na0.51Mn0.5Fe0.5O2, and -6.8 mu V/K for LiCoO2. In the thermocell with Na0.99CoO2, time-dependence of the electromotive force (Delta V) at a constant temperature difference (Delta T) was well reproduced by a mean-field approach of the chemical potential (phi)-Na+ concentration (x) relationship, indicating that the Na+ intercalation/deintercalation plays an intrinsic role in the electrochemical Seebeck effect. (C) 2015 AIP Publishing LLC.
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