The effect of metal sulfides in the cathode on Na/S battery performance

The effect of metal sulfides in the cathode on Na/S battery performance was investigated. Battery capacity was heavily decreased by doping with FeS 2, CoS 2 and Cr 2S 3, and little influenced by doping with NiS 2 and Al 2S 3. A FeS 2 3.0 wt.% doped cell exhibited a 65% resistance rise and a 65% capa...

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Veröffentlicht in:Journal of power sources 2001-02, Vol.93 (1), p.50-54
Hauptverfasser: Okuyama, Ryoichi, Nakashima, Hiroharu, Sano, Toshio, Nomura, Eiichi
Format: Artikel
Sprache:eng
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Zusammenfassung:The effect of metal sulfides in the cathode on Na/S battery performance was investigated. Battery capacity was heavily decreased by doping with FeS 2, CoS 2 and Cr 2S 3, and little influenced by doping with NiS 2 and Al 2S 3. A FeS 2 3.0 wt.% doped cell exhibited a 65% resistance rise and a 65% capacity loss during cycling. Such a degradation causing by the metal sulfides was mainly attributable to a low charge acceptability of the cathode and closely related to the cathode structure.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(00)00532-2