Figure 6: Ultra-Ni–Fe battery made of Ni(OH)2/MWNT and FeOx/graphene. | Nature Communications

Figure 6: Ultra-Ni–Fe battery made of Ni(OH)2/MWNT and FeOx/graphene.

From: An ultrafast nickel–iron battery from strongly coupled inorganic nanoparticle/nanocarbon hybrid materials

Figure 6

(a) CV curves at various scan rates in two-electrode configuration in 1 M KOH. 1.1 mg of Ni(OH)2/MWNT and 0.7 mg of FeOx/graphene were loaded into 1 cm2 Ni foams to form the electrodes. (b) Two-electrode specific capacity of the ultra-Ni–Fe battery at various scan rates based on CV data in (a). (c) Galvanostatic discharge curves at various current densities. Charging was performed at 3.7 A g−1 till 1.67 V. (d) Ragone plot of the ultra-Ni–Fe battery measured in (c). (e) Galvanostatic charge and discharge curves of the ultra-Ni–Fe at a current density of 37 A g−1. (f) Capacity retention vs cycle number for the ultra-Ni–Fe battery at a galvanostatic charge and discharge current density of 37 A g−1.

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