Dynamical theory for the battery's electromotive force
Kaydedildi:
| Yazarlar: | , , , |
|---|---|
| Materyal Türü: | artículo original |
| Yayın Tarihi: | 2021 |
| Diğer Bilgiler: | We propose a dynamical theory of how the chemical energy stored in a battery generates the electromotive force (emf). In this picture, the battery's half-cell acts as an engine, cyclically extracting work from its underlying chemical disequilibrium. We show that the double layer at the electrode–electrolyte interface can exhibit a rapid self-oscillation that pumps an electric current, thus accounting for the persistent conversion of chemical energy into electrical work equal to the emf times the separated charge. We suggest a connection between this mechanism and the slow self-oscillations observed in various electrochemical cells, including batteries, as well as the enhancement of the current observed when ultrasound is applied to the half-cell. Finally, we propose more direct experimental tests of the predictions of this dynamical theory. |
| Ülke: | Kérwá |
| Kurum: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Dil: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/84313 |
| Online Erişim: | https://pubs.rsc.org/en/content/articlelanding/2021/CP/D1CP00196E https://hdl.handle.net/10669/84313 |
| Anahtar Kelime: | Batteries Electromotive force Electrical double layer Self-oscillation |