2. Batteries (lithium-aluminium)-iron sulfide
The lithium-sulfur couple remains attractive thanks to its high specific energy. Its inherent difficulties have been largely overcome by using a lithium alloy at the anode and a transition metal sulfide at the cathode, the main aim being to have two solid electrodes framing a molten salt. This naturally results in a reduction in specific energy compared with the Li/S pair. Alloys of lithium and aluminum, or silicon, elaborated in the form of a porous solid structure, have proved to be electrochemically reversible negative materials, while among the transition metal sulfides, those of iron, FeS and FeS 2 lead to interesting performances, both technically and in terms of price. The simplest cell is described by the formula :
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Batteries (lithium-aluminium)-iron sulfide
Sodium-sulfur battery
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Bibliography
- - Pour faciliter la recherche des documents cités, les références bibliographiques concernent, pour l'essentiel, le « Journal of power sources » (J. Power Sources), le « Journal of the Electrochemical Society » (J. Electrochem. Soc.) et les actes du Colloque Gaston Planté 2000 (Paris, 30-31 octobre 2000). L'éditeur du « Journal of power sources » est Elsevier...
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