Abstract: 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).

Abstract: 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. The metal air battery having a structure according to the exemplary embodiment of the present invention may prevent the electrolytes of the cathode and the anode from being mixed and activate battery reaction, thereby preparing a high-capacity battery.

Abstract: There is provided an electric double layer capacitor including: an exterior case having a housing space provided therein and formed of insulating resin; first and second external terminals buried in the exterior case, each having a first surface exposed to the housing space and a second surface exposed to an outside of the exterior case; and a chip-type electric double layer capacitor cell disposed in the housing space and electrically connected to the first surface. The chip-type electric double layer capacitor cell includes first and second electrodes facing each other and having electricity of opposite polarities applied thereto, at least one induction electrode layer disposed between the first and second electrodes and having no electricity applied thereto, and first and second separators disposed between the first electrode and the induction electrode layer and between the second electrode and the induction electrode layer, respectively.

Abstract: 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. Since the magnesium capacitor in accordance with the present invention can use magnesium metal and its alloys as anode materials, a separate pre-doping process of magnesium metal is not needed. Further, it is possible to provide a magnesium capacitor that can be charged and discharged in a predetermined range as well as overcome reduction in stability due to leakage of an electrolyte occurred when using lithium ions as an anode material in the prior art.

Abstract: Disclosed are a method for forming an organic layer pattern which is characterized by forming a thin layer by coating a coating solution including a polyimide-based polymer having a heteroaromatic pendant group including a heteroatom in its polyimide major chain, a photoinitiator and a crosslinking agent on a substrate and drying the substrate, and exposing and developing the thin layer, an organic layer pattern prepared by the method, and an organic memory device comprising the pattern. According to example embodiments, a high-resolution micropattern may be formed without undergoing any expensive process, e.g., photoresist, leading to simplification of the preparation process and cost reduction.

Abstract: The present invention provides a chip type electric double layer capacitor including: a lower case having an internal space of which an upper surface is opened and an external terminal of which portions exposed to a bottom of the internal space and the outside are connected to each other; an electric double layer capacitor cell disposed in the internal space of the lower case to be electrically connected to the portion of the external terminal, which is exposed to the bottom of the internal space; and an upper cap mounted on the lower case to cover the internal space, and a method for manufacturing the same.

Abstract: A method of manufacturing the electric double layer capacitor cell includes preparing first and second electrode sheets by printing electrode material onto conductive sheets, respectively, with the exception of regions to be provided as first and second terminal lead-out portions in the conductive sheets; punching the first and second electrode sheets so as to form a plurality of first and second unit electrodes, respectively, each first unit electrode having the first terminal lead-out portion and each second unit electrode having the second terminal lead-out portion; stacking the first and second electrode sheets with a separator interposed therebetween in order that the plurality of first and second unit electrodes are overlapped; and cutting the first and second electrode sheets being stacked into the first and second unit electrodes.

Abstract: An organic memory device having a memory active region formed by an embossing structure. This invention provides an organic memory device including a substrate, a first electrode formed on the substrate, an organic memory layer formed on the first electrode, a second electrode formed on the organic memory layer and an embossing structure provided at the organic memory layer to form a memory active region.

Abstract: Disclosed herein are an organic memory device and a method for fabricating the device. The organic memory device may include a first electrode, a second electrode and an organic active layer wherein the organic active layer includes an upper organic material layer formed of an electrically conductive organic material containing heteroatoms and a lower organic material layer formed of an electrically non-conductive organic material containing heteroatoms. Because the organic memory device exhibits improved thermal stability and non-volatility, it may be well suited for use in nonvolatile large-capacity storage units. Flexible electrodes may be used in the organic memory device to fabricate flexible memory devices.

Abstract: Disclosed is a piezoelectric energy harvesting apparatus. The piezoelectric energy harvesting apparatus includes: a piezoelectric energy harvesting array that includes a plurality of piezoelectric energy harvesting devices converting an external vibration into electric energy; a plurality of switches that is connected in series to the piezoelectric energy harvesting devices, respectively, and fits the resonance frequency of the piezoelectric energy harvesting array to the frequency of the external vibration by adjusting the resonance frequencies of the piezoelectric energy harvesting devices through the operation of the switches; and at least one or more rectifiers that convert alternating voltage outputted from the piezoelectric energy harvesting array into direct voltage.

Abstract: Disclosed are an electrode for a low-resistance energy storage device, a method of manufacturing the same, and an energy storage device using the same. In detail, the electrode for an energy storage device is manufactured by forming electrode materials on a metal layer having a dendrite formed thereon. The energy storage device using the electrode for an energy storage device has low resistance characteristics.

Abstract: Disclosed are a hybrid energy harvester and a portable device including the same. The hybrid energy harvester according to an exemplary embodiment of the present disclosure includes: a thermoelectric/piezoelectric element part that includes a thermoelectric element layer generating a voltage by a temperature difference, and a piezoelectric element layer generating a voltage by any one of vibration, pressure and force; an energy source selection part that selects a voltage generated in the thermoelectric element layer or the piezoelectric element layer; and a voltage controlling part that stores the voltage in an energy storage device by controlling the voltage selected in the energy source selection part.

Abstract: There are provided methods of manufacturing an electric double layer capacitor cell and an electric double layer capacitor and an apparatus for manufacturing an electric double layer capacitor cell.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Provided is an energy harvesting electric device capable of increasing output power. The energy harvesting electric device includes an energy harvester array including a plurality of energy harvesters, a single rectifier connected to the energy harvester array, and an output unit which is connected to the single rectifier and has a load resistance. The energy harvesters include a plurality of first energy harvesters connected to each other in parallel and a single second energy harvester connected in parallel to the first energy harvesters. The first energy harvesters have a first specific resistance higher than the load resistance and the second energy harvester has a second specific resistance higher than the first specific resistance.

Abstract: 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.

Abstract: 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.