Patent application number | Description | Published |
20110317331 | ELECTROCHEMICAL CAPACITOR - The present invention provides an electrochemical capacitor, which includes: a cell electrode unit which includes cathodes, anodes, and separators interposed between the cathodes and the anodes which are alternately stacked in multiple layers; cathode terminals which are extended to one side of each of the cathodes and are stacked one above another; anode terminals which are extended to one side of each of the anodes and are stacked one above another with a separation space from the cathode terminals; a housing for receiving the cell electrode unit, the cathode terminals, and the anode terminals; and an output terminal unit which is insert-molded to penetrate from the inside to the outside of the housing, electrically connected to at least one of each of the stacked cathode and anode terminals, and immobilizes the cell electrode unit into the housing. | 12-29-2011 |
20120042490 | METHOD OF PRE-DOPING LITHIUM ION INTO ELECTRODE AND METHOD OF MANUFACTURING ELECTROCHEMICAL CAPACITOR USING THE SAME - The present invention provides a method of pre-doping lithium ions into an electrode, and a method of manufacturing an electrochemical capacitor using the same. The method for pre-doping lithium ions into an electrode includes the steps of: immersing a positive electrode, a negative electrode, and a lithium metal electrode into an electrolyte solution; performing a first pre-doping for directly doping lithium ions into the negative electrode from the lithium metal electrode; and performing a second pre-doping which includes a charging process for applying currents between the positive electrode and the negative electrode to charged with the applied currents, and a releasing process for releasing lithium ions from the lithium metal electrode, and a method for manufacturing the electrochemical capacitor using the same. | 02-23-2012 |
20120063061 | Electrolyte solution composition and energy storage device including the same - Disclosed herein are an electrolyte solution composition and an energy storage device including the same. The electrolyte solution composition contains: a lithium salt including lithium ions; and a solvent made of a material selected from a group consisting of at least one cyclic carbonate compound and propionate compound. The electrolyte solution composition may balancedly maintain characteristics at a room temperature and a low temperature and be used for pre-doping lithium ions, thereby making it possible to improve pre-doping efficiency. | 03-15-2012 |
20120063062 | Electrolyte solution composition and energy storage device with the same - Disclosed herein are an electrolyte solution composition and an energy storage device including the same. The electrolyte solution composition contains: a lithium salt including lithium ions; and a solvent made of a material selected from a group consisting of at least one cyclic carbonate compound. The electrolyte solution composition may balancedly maintain characteristics at a room temperature and a high temperature and be used for pre-doping lithium ions, thereby making it possible to improve pre-doping efficiency. | 03-15-2012 |
20120087063 | ELECTRODE STRUCTURE AND LITHIUM ION CAPACITOR WITH THE SAME - Provided is an anode structure of an energy storage device such as a lithium ion capacitor. The anode structure includes a current collector and an active material layer formed on the current collector, and the active material layer includes an active material, a conductive material for providing conductivity to the active material layer, and graphite surface-coated with amorphous carbon. | 04-12-2012 |
20120099245 | LITHIUM ION CAPACITOR AND MANUFACTURING METHOD OF LITHIUM ION CAPACITOR - Disclosed herein are a lithium ion capacitor (LIC) including: a positive electrode including a positive electrode activated material; a negative electrode including a negative electrode activated material; and an electrolyte solution disposed between the positive electrode and the negative electrode, wherein the positive electrode activated material includes graphite, thereby making it possible to considerably improve capacitance of a lithium ion capacitor as compared to a lithium ion capacitor according to the related art, and a manufacturing method of the lithium ion capacitor. | 04-26-2012 |
20120099246 | LITHIUM ION CAPACITOR - Disclosed herein is a lithium ion capacitor, including: a positive electrode including a positive electrode activated material; a negative electrode including a negative electrode activated material; and an electrolyte disposed between the positive and negative electrodes, wherein the positive electrode activated material includes a mixture of lithium iron phosphate (LiFePO4) and activated carbon, thereby having improved energy density and capacitance and a long life span. | 04-26-2012 |
20120262845 | MAGNESIUM CAPACITOR AND METHOD FOR PREPARING THE SAME - The present invention relates to a magnesium capacitor including: a cathode including a carbon material as an active material; an anode including magnesium and its alloys as active materials; and an electrolyte. | 10-18-2012 |
20120270116 | METAL AIR BATTERY AND METHOD FOR PREPARING THE SAME - Disclosed is a metal air battery a metal anode and an air cathode, wherein the metal anode includes an organic electrolyte and the air cathode includes an aqueous electrolyte, and a method for preparing the same. | 10-25-2012 |
20120293916 | ELECTROLYTE SOLUTION FOR LITHIUM-ION CAPACITOR AND LITHIUM-ION CAPACITOR INCLUDING THE SAME - Disclosed herein are an electrolyte solution composition and an energy storage device including the same. The electrolyte solution may include: a solvent including one or more compound selected from one or more cyclic carbonate compound; and additives including one or more selected from a group consisting of catechol carbonate (CC), fluoro ethylene carbonate (FEC), propane sulton (PS), and propene sulton (PST). | 11-22-2012 |
20120300365 | CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM ION CAPACITOR INCLUDING THE SAME - A cathode active material, a method for preparing the same, and a lithium ion capacitor including the same. The cathode active material has a surface with a porous structure and an inside with an amorphous structure where crystalline phases are not present. The cathode active material according to the present invention has the inside having an amorphous structure where crystal lattices are not contained in a short range order, thereby preventing the lithium ions from being intercalated into the inside of the cathode active material while the anode is pre-doped. The lithium ion capacitor containing the cathode active material having the above structure can maintain a potential difference between the cathode and the anode constantly, thereby obtaining high withstand voltage, high energy density, and high input and output characteristics. Furthermore, a large-capacitance lithium ion capacitor device having excellent reliability of high-speed charging and discharging cycle can be manufactured. | 11-29-2012 |
20120300366 | METHOD FOR PRE-DOPING ANODE AND LITHIUM ION CAPACITOR STORAGE DEVICE INCLUDING THE SAME - Disclosed herein are a method for pre-doping an anode and a lithium ion capacitor storage device including the same. The method of the present invention includes: disposing lithium metal films and anodes alternately; and charging the lithium metal films and the anodes to directly pre-dope lithium metal contained in the lithium metal films onto the anodes. The lithium ion capacitor storage device is manufactured by the method. According to the present invention, the lithium ion capacitor storage device including the anode can provide a high-capacitance capacitor capable of operating even at a high voltage range of up to 3.8V to 2.0V, and ensure high reliability even in a high-temperature (60° C.) cycle. | 11-29-2012 |
20130062571 | METHOD FOR PREPARING ELECTRODE ACTIVE MATERIAL SLURRY AND ELECTROCHEMICAL CAPACITOR COMPRISING ELECTRODE USING ELECTRODE ACTIVE MATERIAL SLURRY PREPARED BY THE METHOD - A method for preparing electrode active material slurry including: mixing a conductive agent and a first thickener with a low molecular weight to primarily disperse the mixture; and mixing an active material and a second thickener with a higher molecular weight than the first thickener in the primary dispersion to secondarily disperse the mixture, and an electrochemical capacitor comprising an electrode using electrode active material slurry prepared by the method. It is possible to prepare a low resistance and high capacity electrochemical capacitor by selectively using at least two thickeners with different degrees of polymerization and molecular weights to remarkably improve dispersibility of an active material and a conductive agent. Particularly, it is possible to reduce resistance based on an electrochemical capacitor with the same capacity. | 03-14-2013 |
20130070390 | ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND ELECTROCHEMICAL CAPACITOR INCLUDING THE SAME - An electrode active material having a partially crystalline structure in a fine area (short range), a method for preparing the same, and an electrochemical capacitor including the same. The electrode active material having a partially crystalline structure in a fine area (short range) can be prepared by performing heat treatment at a proper temperature. In a case where the electrode active material is used for an electrode of an electrochemical capacitor, the pores as well as the partially crystalline structure, of the electrode active material, can contribute to capacitance, and thus, energy density of the electrochemical capacitor can be significantly improved. | 03-21-2013 |
20130182371 | CAPACITOR AND METHOD OF MANUFACTURING THE SAME - Provided are a capacitor and a method of manufacturing the same. A first capacitor unit and a second capacitor unit are alternately stacked to three layers or more to form a stacked body, collector lead parts of the first capacitor units are connected to contact each other, collector lead parts of the second capacitor units are connected to contact each other, and the collector lead parts of the stacked body are stacked such that side surfaces thereof form a stepped shape. | 07-18-2013 |