Abstract: A lithium ion electrolyte, a preparation method and application thereof are provided. The lithium ion electrolyte includes: an ester solvent, a lithium salt and an electrolyte additive, where the electrolyte additive includes a compound as shown in the following formula I. According to the electrolyte provided by the present disclosure, all components have a synergistic effect and are matched with one another, so that the electrolyte can improve the interface stability of a high-nickel positive electrode material and prolong the cycle life of a lithium ion battery and a lithium ion capacitor.

Abstract: A lithium ion electrolyte, a preparation method and application thereof are provided. The lithium ion electrolyte includes: an ester solvent, a lithium salt and an electrolyte additive, where the electrolyte additive includes a compound as shown in the following formula I. According to the electrolyte provided by the present disclosure, all components have a synergistic effect and are matched with one another, so that the electrolyte can improve the interface stability of a high-nickel positive electrode material and prolong the cycle life of a lithium ion battery and a lithium ion capacitor.

Abstract: The present invention relates to an organic capacitor battery with high specific energy and high specific power. It is composed of an anode, a cathode, a separator in-between the cathode and anode, and an organic electrolyte. The characteristics of the capacitor battery are that the anode is a mixture of porous carbon materials with a lithium-ion intercalation compound, the cathode is hard carbon, and the electrolyte is an organic solvent electrolyte containing lithium ions. The super capacitor battery prepared according to this invention has high energy density (up to 20-90 W/Kg) and high power density (>4500 W/Kg, and it can be widely used in electric vehicles, power tools, solar energy storage, wind energy storage, portable appliances and other fields.

Abstract: The present invention relates to a preparation method of a long cycle life negative electrode as well as the organic hybrid capacitor battery using this negative electrode. The preparation steps of the negative electrode include: blending all materials including carbon material with a fast lithium intercalation capability, and a binder, and adding in solvent; pressing the blended material to get an electrode plate of a certain thickness; stirring the conductive agent to a paste, and attaching it to a cathode current collector; attaching the electrode plate to the conductive agent coated negative current collector; Drying, grinding, cutting and vacuum drying to form a negative electrode. In the present invention, the process of pressing the electrode plate into shape first and then attaching to the negative current collector is used, which enables the negative electrode to have a high compressed density and cycle life.

Abstract: A composite membrane for a capacitor, comprising: a carrier; a mixture of a catalytic material for catalyzing hydrogen and oxygen, and a dispersion resin. The catalytic material is selected from the group consisting of a precious metal in Group VIII of the periodic table of elements and their alloys, and a rare earth metal of the La group of rare earth metals and their alloys. The carrier is a film formed by at least one of the following: polypropylene, polyethylene, polytetrafluoroethylene and polyamide. The carrier can include asbestos fibers, polypropylene fibers, or their mixture. The dispersion resin can be one of the following: ethylene, Nafion™, polyvinyl alcohol, polyethylene, CMC, and the like. The present disclosure also provides a method for making a composite membrane, and a capacitor with the composite membrane.

Abstract: A composite membrane for a capacitor, comprising: a carrier; a mixture of a catalytic material for catalyzing hydrogen and oxygen, and a dispersion resin. The catalytic material is selected from the group consisting of a precious metal in Group VIII of the periodic table of elements and their alloys, and a rare earth metal of the La group of rare earth metals and their alloys. The carrier is a film formed by at least one of the following: polypropylene, polyethylene, polytetrafluoroethylene and polyamide. The carrier can include asbestos fibers, polypropylene fibers, or their mixture. The dispersion resin can be one of the following: ethylene, Nafion™, polyvinyl alcohol, polyethylene, CMC, and the like. The present disclosure also provides a method for making a composite membrane, and a capacitor with the composite membrane.