A practical high-energy lithium-ion capacitor enabled by multiple conducting bridges triggered electrode current reallocation

•Multiple conducting bridges among HC anode / AC cathode powders were in-situ constructed via a self-propagating high-temperature synthesis methodology.•This multiple conducting strategy can effectively connect isolated electrode powders, triggering a fast inter-particle electrons/ions migration, obtaining a uniform current reallocation at electrode scale, leading to an enhanced electronic conductivity of by ∼3 folds and multiple ions diffusion pathway.•A practical 1000 F Lithium-ion capacitor is fabricated, which exhibits State of the art device performance.