Evaluation of Nickel for Positive Electrode Components in Li ‐ Al / FeS Cells
| Autor: | J. A. Smaga, J. E. Battles |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Battery (electricity)
Materials science Renewable Energy Sustainability and the Environment Metallurgy chemistry.chemical_element Iron sulfide Intergranular corrosion Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Corrosion Electrochemical cell Nickel chemistry.chemical_compound chemistry Electrode Materials Chemistry Electrochemistry Lithium Composite material |
| Zdroj: | Journal of The Electrochemical Society. 129:496-502 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.2123888 |
| Popis: | The materials used for current collector applications in lithium-aluminum/iron sulfide batteries must combine the qualities of corrosion resistance, low resistivity, and ease of formability to maximize battery lifetime and performance. An extensive program of materials evaluation is being conducted to identify the optimum materials. As part of this program, the corrosion resistance of nickel positive electrode components (i.e., collectors, electrode frames, and retaining screens) was evaluated in seven test cells. The effects of (i) length of operation, (ii) charge cutoff voltage, (iii) additives for improved cell performance, and (iv) assembled state of charge were determined. Corrosion behavior was found to be very dependent on the last parameter. An iron deposition layer 4-6 /mu/m thick formed on the nickel components of cells assembled in the fully charged state. The nickel components from four cells built in a semicharged condition exhibited localized areas of severe intergranular attack. 14 refs. |
| Databáze: | OpenAIRE |
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