Title:
THERMOELECTRIC POWER GENERATING ELEMENT, THERMOELECTRIC POWER GENERATING BATTERY, AND POWER GENERATION STABILIZING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/191101
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a thermoelectric power generating battery having excellent battery characteristics. The problem can be addressed using the thermoelectric power generating element not requiring a temperature gradient of the present invention. In this thermoelectric power generating element, a first portion including a semiconductor that generates thermally excited electrons and holes, a second portion that includes an electrolyte through which a charge transport ion pair can move, and a third portion including a material that serves as an electrode are in contact in this order. The valence band potential of the semiconductor of the first portion is more positive than the oxidation-reduction potential of the charge transport ion pair, an oxidation reaction of the ion that is more easily oxidized of the two ions occurs at the interface between the first portion and the second portion, and a reduction reaction of the ion that is more easily reduced of the two ions occurs at the interface between the third portion and the second portion. This thermoelectric power generating element also satisfies formula (I): L/IDT = 1 to 20 (I) (in the formula, L is "the shortest distance between the first portion and the second portion," and IDT is "ion diffusion thickness").
Inventors:
MATSUSHITA SACHIKO (JP)
KOHATA HARUKI (JP)
SEKIYA HAYATO (JP)
IKEDA TAKUMI (JP)
OBINATA MITSUGU (JP)
KOHATA HARUKI (JP)
SEKIYA HAYATO (JP)
IKEDA TAKUMI (JP)
OBINATA MITSUGU (JP)
Application Number:
PCT/JP2022/009619
Publication Date:
September 15, 2022
Filing Date:
March 07, 2022
Export Citation:
Assignee:
TOKYO INST TECH (JP)
International Classes:
H01L37/00; H02N11/00
Domestic Patent References:
| WO2020031992A1 | 2020-02-13 | |||
| WO2017038988A1 | 2017-03-09 | |||
| WO2012140856A1 | 2012-10-18 | |||
| WO2001071821A1 | 2001-09-27 |
Foreign References:
| JP2021005651A | 2021-01-14 | |||
| US20210020362A1 | 2021-01-21 | |||
| JPH08306964A | 1996-11-22 | |||
| JPH04190572A | 1992-07-08 |
Other References:
RENEWABLE AND SUSTAINABLE ENERGY REVIEWS (HOLLAND, vol. 33, 2014, pages 371
Attorney, Agent or Firm:
YAMAGUCHI Kenjiro et al. (JP)
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