| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1786927 | Current Applied Physics | 2011 | 4 Pages |
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 g−1 with a plateau potential at 0.84 V versus Na/Na+. The discharge capacity decreased to 255 mAh g−1 after 15 cycles. Iron additive in Ni3S2 electrode played a role as a conductive agent and did not form iron sulfide during charging.
► It was reported that Na/Ni3S2 cell showed a high capacity and good cycle life. ► Since iron is an electric conductor and iron-sulfide is a good active material for sodium battery, we prepare Ni3S2 electrode by addition of iron powder. ► Iron powder in the Ni3S2 electrode plays a role as a conductive agent and does not form iron sulfides.
