Boosting of the output voltage of a galvanic cell
| Autor: | Karel Lacina, Petr Vanýsek, Petr Skládal, Jakub Sopoušek |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry General Chemical Engineering 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences Cathode 0104 chemical sciences Anode law.invention law Electrochemistry Galvanic cell Optoelectronics Daniell cell 0210 nano-technology business Galvanic isolation Short circuit Voltage |
| Zdroj: | Electrochimica Acta. 282:331-335 |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2018.06.080 |
| Popis: | The output voltage of a galvanic cell can be increased by insertion of two pairs of anodes and cathodes into a single volume of an electrolyte. The anode from the first pair and the cathode from the second pair are galvanically connected using external wire conductor. Two cells connected through such short circuit performed as separate units when their spatial separation was sufficient. The output voltage of thus modified cell increased above the thermodynamic potential of a single cell, with the increased distance of the second pair, and finally reached double the value of the output voltage of a single cell after exceeding a characteristic parameter, the saturation distance. Further properties of the system are described on the example of a modified Daniell cell including tests of diverse types of electrolytes and other experimental conditions. The general nature of the principles was confirmed in an experiment with the Leclanche cell and linear character of the multiplication of the corresponding output voltage was confirmed with 2, 3 and 4 galvanically short-circuited cells. All these results lead to the conclusion that this concept is valuable for all types of chemical energy sources (employing an electrolyte) – galvanic cells, batteries, (bio)fuel and microbial cells. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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