rate/kinetic performance compared to carbon electrode materials. In the above work, Ni3(HITP)2 exhibits a drop in capacitance to approx. 32 % of the initial value as the current density is increased from 0.05 -10 A g -1 and when charged across its stable double-layer voltage window of 0 -1 V. This rate capability is significantly lower than that for YP-50F porous carbon (94 %) in the same current density range (Figure ).