LaMnOx Air Diffusion Cathode for Primary Alkali Batteries
| Autor: | M. S. Yazici |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Alkali metal Electrochemistry 01 natural sciences Cathode 0104 chemical sciences law.invention law Mass transfer Electrode 0210 nano-technology Current density Voltage drop Leakage (electronics) |
| Zdroj: | Russian Journal of Electrochemistry. 56:630-637 |
| ISSN: | 1608-3342 1023-1935 |
| DOI: | 10.1134/s1023193520080078 |
| Popis: | Electrochemical performance of a new type of high-current air cathode is compared to off-the-shelf air electrodes (Alupower-A series; Eltech-B; Duracell-C) in 35% KOH solution. LaMnOx (LAM) is made by precipitation method resulting with sub-micron size particles. The electrode is single layer and very resistant to the KOH leakage. Approximately 65 m2 g–1 surface area is favorable for effective catalyst distribution and electrochemical active area utilization. LaMnOx type catalyst-supported electrode performs comparable or better than many of the commercial samples. Electrode shows a voltage drop of less than 200 mV at 150 mA cm–2 current density. Electrode structure does not show any sign of mass transfer limitation up to 250 mA cm–2. |
| Databáze: | OpenAIRE |
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