High seebeck coefficient thermo-electrochemical cell using nickel hollow microspheres electrodes

Igor Burmistrov, Nikolay Gorshkov, Natalya Kovyneva, Evgeny Kolesnikov, Bekzod Khaidarov, Gopalu Karunakaran, Eun-Bum Cho, Nikolay Kiselev, Denis Artyukhov, Denis Kuznetsov and Alexander Gorokhovsky

Renewable Energy, 2020, vol. 157, issue C, 1-8

Abstract: High-performance harvesting of waste heat energy and its conversion into electric energy via thermo-electrochemical cells is an essential strategy of renewable energy development. Even though there is a large amount of scientific research available, but due to expensive electrode materials and low efficiency, the thermo-electrochemical cells have not found practical application. Here we demonstrated thermo-electrochemical cell with nickel (Ni) hollow microspheres-based electrodes, provided the highest hypothetical Seebeck coefficient of 4.5 mV/K (for aqueous electrolyte based thermocells) until today and open-circuit voltage values of up to 0.2 V. High values of Seebeck coefficient provide the ability to collect low-temperature heat, and high output potential differences which allow to fabricate batteries for commercial power circuits for various microelectronic devices. This work also proposed a mechanism and science behind the electrode processes, which explains a extremely high values of the hypothetical Seebeck coefficient. This is the first time to use Ni hollow microsphere in thermo-electrochemical cell for heat harvesting and thermal energy conversion into electricity. Because of the low cost of Ni microspheres electrode-based developed thermo cells could be commercially feasible for harvesting low-quality thermal energy.

Keywords: Thermo-electrochemical cell; Renewable energy; Seebeck coefficients; Waste heat harvesting; Nickel hollow microspheres (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:157:y:2020:i:c:p:1-8

DOI: 10.1016/j.renene.2020.04.001

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