The addition of iron to Ni3S2 electrode for sodium secondary battery

Elsevier Inc
Publication Type:
Journal article
Kim Jong-Seon et al. 2011, 'The addition of iron to Ni3S2 electrode for sodium secondary battery', Elsevier Inc, vol. 11, no. 1, pp. S215-S218.
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In order to investigate the role of iron additive in the Ni3S2 electrode, the Ni3S2 electrode was prepared by addition of iron. The discharge properties of Na/Ni3S2 cells using 1 M NaCF3SO3 in tetra(ethylene glycol)dimethyl ether liquid electrolyte were investigated at room temperature. The Na/Ni3S2 cell had an initial discharge capacity of 400 mAh ga??1 with a plateau potential at 0.84 V versus Na/Na+. The discharge capacity decreased to 255 mAh ga??1 after 15 cycles. Iron additive in Ni3S2 electrode played a role as a conductive agent and did not form iron sulfide during charging.
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