Modeling the crystal distribution of lead-sulfate in lead-acid batteries with 3D spatial resolution
| Autor: | Julia Badeda, Moritz Huck, Dirk Uwe Sauer |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Precipitation (chemistry) Nucleation Energy Engineering and Power Technology Mineralogy Crystal chemistry.chemical_compound chemistry Degradation (geology) Electrical and Electronic Engineering Physical and Theoretical Chemistry Sulfate Lead–acid battery Biological system Image resolution Dissolution |
| Zdroj: | Journal of Power Sources. 279:351-357 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2014.12.157 |
| Popis: | For the reliability of lead-acid batteries it is important to have an accurate prediction of its response to load profiles. A model for the lead-sulfate growth is presented, which is embedded in a physical–chemical model with 3D spatial resolution is presented which is used for analyzing the different mechanism influencing the cell response. One import factor is the chemical dissolution and precipitation of lead-sulfate, since its dissolution speed limits the charging reaction and the accumulation of indissolvable of lead-sulfate leads to capacity degradation. The cell performance/behavior is not only determined by the amount of the sulfate but also by the radii and distribution of the crystals. The presented model can be used to for an improved understanding of the interaction of the different mechanisms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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