▎ 摘　　要

NOVELTY - High-voltage hybrid lithium-ion supercapacitor, comprises a anode sheet, a cathode sheet, a diaphragm between positive and cathode. An electrolyte filled in the gap between the positive and cathode and the diaphragm. A shell comprising organic material suitable for high-voltage electrolyte solvent. A lithium salt electrolyte suitable for high-voltage electrolyte. An electrolyte additive that can stabilize high-voltage positive electrode material. A prepared high-voltage electrolyte is suitable for high-voltage hybrid lithium-ion supercapacitor. The 5V positive electrode material modified by nano-carbon material and the cathodeof porous carbon material are encapsulated with high-voltage electrolyte. USE - Used as high-voltage hybrid lithium-ion supercapacitor. ADVANTAGE - The high voltage mixed type lithium ion super capacitor has high working voltage, energy density, power density, safety and circulating service life. The capacitor has simple preparation technique, green and environment-friendly, low cost preparation method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparing high voltage mixed type lithium ion super capacitor.