In this work lithium ion capacitors (LICs) built using a TiSb2 alloy as the negative electrode and activated carbon (AC) derived from recycled olive pits biomass as the positive electrode are reported. TiSb2 shows high capacity (360 mAh g−1 at 10 C) and excellent rate capability performance together with exceptional volumetric features, enabling its use as a promising candidate for high power requiring technologies. So far, to the best of our knowledge, this is the first Sb alloy‐based LIC ever reported. In order to maximize the output performance, the influence of the mass ratio of the active materials (TiSb2 : AC) is studied. The best TiSb2‐based LIC is able to deliver an energy density as high as 167 Wh kgAM−1 (78 Wh dm−3) at 115 W kgAM−1 (53 W dm−3), more than a 6‐fold increase with respect to its EDLC counterpart. Under high power demanding situations, i. e., 11 kW kgAM−1 (6 kW dm−3), it retains up to 90 Wh kgAM−1 (48 Wh dm−3), which is among the best reported values for LICs. In addition, the device with the most appropriate mass ratio presents an encouraging 80 % retention of the initial capacitance after 10000 charge‐discharge cycles at tdischarge=11 s.