Rev.Adv.Mater.Sci. (RAMS)
No 1, Vol. 28, 2011, pages 107-110

THE ELECTROCHEMICAL PROPERTIES OF SODIUM/IRON SULFIDE BATTERY
USING IRON SULFIDE POWDER COATED WITH NICKEL

J.S. Kim, J.H. Yu, H.S. Ryu, K.W. Kim, T.H. Nam, J.H. Ahn, G. Wang and H.J. Ahn

Abstract

To develop the battery with low cost and high energy density, Na/TEGDME/FeS cell was prepared using Ni-plated FeS powder. Electrochemical properties of Na/FeS cells were investigated by cyclic voltammogram measurement and charge-discharge tests. The Na/FeS cell showed a high initial discharge capacity of 525 mAh/g-FeS in the current density of 0.1C-rate. The FeS electrode showed two reduction peak potentials at 0.87 and 1.39 V and broad one oxidation peak between 1.23 V and 2.3 V. The discharge products might be sodium sulfide of Na2Sx (x=1 to 5). The discharge capacity of 195 mAh/g-FeS was maintained after 150th cycle.

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