Effects of dynamic electrodes on sodium sulfur cell performance

Journal Article · Wed May 01 04:00:00 EDT 1991 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2085780· OSTI ID:5779641

Tokoi, H; Watahiki, N; Sumida, I ^[1]

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1. Hitachi, Ltd., Energy Research Lab., 1168 Moriyama-cho, Hitachi, Ibaraki 316 (JP)

In this paper the construction and performance of a sodium sulfur cell with dynamic sodium and sulfur electrodes are described. The cell was constructed with a sodium feed into a {beta}{double prime}-alumina tube and a sulfur feed into an annular sulfur electrode. Low-resistance graphite felt was tightly packed around the {beta}{double prime}-alumina tube. Sodium pentasulfide was removed from the sulfur electrode. The cell was stably charged in the two-phase region and a high charge acceptance of 95% was obtained. The cell capacity and the discharge voltage increased with the sulfur and sodium feeds. The internal resistance was decreased by thinning the sulfur electrode and using a single zone of low-resistance graphite felt.

• OSTI ID: 5779641
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 138; ISSN JESOA; ISSN 0013-4651
• Country of Publication: United States
• Language: English

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