Reversible Solid Oxide Fuel Cell for Power Accumulation and Generation
- Авторлар: Osinkin D.1,2, Bogdanovich N.1, Beresnev S.1, Pikalova E.1,2, Bronin D.1,2, Zaikov Y.1,2
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Мекемелер:
- Institute of High Temperature Electrochemistry, Ural Branch
- Ural Federal University
- Шығарылым: Том 54, № 8 (2018)
- Беттер: 644-649
- Бөлім: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189451
- DOI: https://doi.org/10.1134/S1023193518080050
- ID: 189451
Дәйексөз келтіру
Аннотация
The anodic and cathodic polarization dependences for the oxygen electrode based on lanthanum-strontium manganite and the fuel Ni-cermet electrode are studied in the temperature range of 700–900°С in gas media that correspond to working conditions of a reversible fuel cell. The temporal behavior of these electrodes is studied in the course of periodic polarity changes of current with the density of 0.5 A/cm2. The electrode overvoltage is shown to be about 0.1 V in modes of power generation and water electrolysis at 900°С and the current density of 0.5 A/cm2. A single electrolyte supported tubular solid-oxide fuel cell was fabricated and tested in the fuel-cell and hydrogen-generation modes. It is found that at 900°С and overvoltage of 0.7 V, the cell generates the specific electric power of 0.4 W/cm2 when the 50% H2 + 50% H2O gas mixture is used as the fuel and air is used as the oxidizer. At the water electrolysis with the current density of 0.5 A/cm2, which under normal conditions corresponds to generation of about 0.2 and 0.1 L/h of hydrogen and oxygen, respectively, the consumed power is about 0.55 W/cm2. The efficiency of the conversion cycle electric power–hydrogen–electric power is 70–75%.
Авторлар туралы
D. Osinkin
Institute of High Temperature Electrochemistry, Ural Branch; Ural Federal University
Хат алмасуға жауапты Автор.
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137; Yekaterinburg, 620002
N. Bogdanovich
Institute of High Temperature Electrochemistry, Ural Branch
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137
S. Beresnev
Institute of High Temperature Electrochemistry, Ural Branch
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137
E. Pikalova
Institute of High Temperature Electrochemistry, Ural Branch; Ural Federal University
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137; Yekaterinburg, 620002
D. Bronin
Institute of High Temperature Electrochemistry, Ural Branch; Ural Federal University
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137; Yekaterinburg, 620002
Yu. Zaikov
Institute of High Temperature Electrochemistry, Ural Branch; Ural Federal University
Email: OsinkinDA@mail.ru
Ресей, Yekaterinburg, 620137; Yekaterinburg, 620002