Moreover, the obtained DFT results correlate well with the observed difference in the initial voltage drop during the start of the discharge step for the cells based on ODQC and TQC (0.39 V vs. 0.26 V, respectively) attained from the measured voltage curves of the rate performance test at 2 Ag -1 (Fig. ). In general the magnitude of the initial voltage drop (read out as the extrapolated Ohmic drop, V, Fig. ) at the reversal of current is proportional to the sum of resistances of bulk electrolyte (in separator) plus the resistance of electron wiring (resistance along carbon black matrix and all the electron contact resistances). In fact, due to the current reversal at the switch from charge to discharge direction the read out value of V corresponds to 2 × Ohmic resistance. Accordingly, for similar electrode thicknesses and the same electrode composition (similar packing of active material and conductive additive) and for the same type of electrolyte the change of the value of V (at the same current density) can serve as an approximate measure for the change of the electron wiring resistance of the electrode composite. We presume that the latter is directly affected by the quality of contact between carbon black and active material and so it is typically improved when the intrinsic conductivity of the active material is higher (considering similar effective contacting area). Thus the combined results of V determination and found lower energy gap of TQC material suggest that the observed better rate performance in comparison with ODQC is (at least partially) due to its higher electronic conductivity. Stationary grid storage requires the utilization of moderate cycling rates between 0.25 C and 2 C . Many reports of organic cathode materials show cycling at rates as high as 1000 C, which can mask the instability of the materials and is of limited importance for grid storage. Cycling of the TQC at a higher current of 500 mAg -1 (≈ 1.7 C cycling rate) showed capacity retention of 88 % after 100 cycles (Fig. ).