Sodium-sulfur batteries were identified as the most likely successor to nickel-hydrogen batteries for space applications. One advantage of the Na/S battery system is that the usable specific energy is two to three times that of nickel-hydrogen batteries. This represents a significant launch cost savings or increased payload mass capabilities. Sodium-sulfur batteries support NASA OAST's proposed Civil Space Technology Initiative goal of a factor of two improvement in spacecraft power system performance, as well as the proposed Spacecraft 2000 initiative. The sodium-sulfur battery operates at between 300 and 400 C, using liquid sodium and sulfur/polysulfide electrodes and solid ceramic electrolyte. The transport of the electrode materials to the surface of the electrolyte is through wicking/capillary forces. These critical transport functions must be demonstrated under actual microgravity conditions before sodium-sulfur batteries can be confidently utilized in space. Ford Aerospace Corporation, under contract to NASA Lewis Research Center, is currently working on the sodium-sulfur battery space flight experiment definition study. The objective is to design the experiment that will demonstrate operation of the sodium-sulfur battery/cell in the space environment with particular emphasis on evaluation of microgravity effects. Experimental payload definitions were completed and preliminary designs of the experiment were defined.


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    Titel :

    Sodium Sulfur Battery Flight Experiment Definition Study. (Abstract Only)


    Beteiligte:
    R. R. Chang (Autor:in) / R. Minck (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    1 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Sodium-sulfur battery flight experiment definition study

    Chang, R. / Minck, R. | Tema Archiv | 1990


    Sodium sulfur battery cell space flight experiment

    GGarner, J.C. / Bakker, W.E. / Braun, W. et al. | Tema Archiv | 1995



    Sodium Sulfur Battery Cell Experiment (NaSBE)

    Garner, J. C. / United States; National Aeronautics and Space Administration; Aerospace Flight Battery Systems Program | British Library Conference Proceedings | 1997