Patent application number | Description | Published |
20130207476 | APPARATUS AND METHOD FOR VARIABLY CONTROLLING DISCONNECTION OF INTERCONNECTION LINES IN BATTERY SYSTEM - Disclosed are an apparatus and method for variably controlling the disconnection or connection of switch connections between battery units in a large battery system based on the degree of a sensed dangerous external situation to convert the battery system into a small capacity and low voltage state. The apparatus includes: switches provided to interconnection lines between battery assembly units to electrically connect or disconnect the interconnection lines; a switch control module adapted to apply on/off signals to the switches; and a disconnection control module adapted to control the switch control module based on a sensed dangerous level to vary the position and number of the target switches to be opened or closed and the disconnection intervals. According to the apparatus and method, dangerous external situations of a large battery system can be sensed and the disconnection of physical connections between the battery units can be variably controlled. | 08-15-2013 |
20130208197 | OPTICAL ELEMENT - The present application relates to an optical device. The optical device according to one embodiment may be a light-dividing device, for example, a device that can divide incident light into at least two kinds of light having different polarization states. For example, the optical device can be used to realize a stereoscopic image. | 08-15-2013 |
20130209861 | LITHIUM SECONDARY BATTERY - Disclosed is an organic/inorganic composite porous film, having: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. Further disclosed is a porous film having: (a) a porous substrate having pores; and (b) a coating layer formed on at least one region selected from the group consisting of a surface of the substrate and a part of the pores present in the substrate, wherein the coating layer comprises styrene-butadiene rubber. Also disclosed is an electrochemical device containing the organic/inorganic composite porous film, a method of manufacturing the film. | 08-15-2013 |
20130209865 | Cathode For Lithium Secondary Battery And Lithium Secondary Battery Comprising The Same - Disclosed is a cathode for a lithium secondary battery and a lithium secondary battery comprising the same. The cathode may include a current collector, a first composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the current collector, and a second composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the first composite layer. A specific surface area of the olivine-type lithium iron phosphate cathode active material powder in the second composite layer may be at least 1.2 times larger than that of the olivine-type lithium iron phosphate cathode active material powder in the first composite layer. The cathode for a lithium secondary battery has excellent safety, high energy density, and high output performance. | 08-15-2013 |
20130215514 | ANTI-REFLECTIVE COATING FILM - The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process. | 08-22-2013 |
20130216729 | METHOD FOR MANUFACTURING ANTI-REFLECTIVE COATING FILM - The present invention relates to a method for manufacturing an anti-reflective coating film. The method for manufacturing an anti-reflective coating film is used to form an anti-reflective coating film exhibiting more improved interface adhesion and scratch resistance and excellent anti-reflective effect by a simple process. | 08-22-2013 |
20130216817 | ANTI-REFLECTIVE COATING FILM - The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process. | 08-22-2013 |
20130216818 | COMPOSITION FOR ANTI-REFLECTIVE COATING AND ANTI-REFLECTIVE COATING FILM USING THE SAME - The present invention relates to an anti-reflective coating composition that can be used to form at least two layers by a single coating process and is allowed to provide an anti-reflective coating film having more improved interface adhesion between the formed layers and scratch resistance, and an anti-reflective coating film manufactured using the same. | 08-22-2013 |
20130216819 | Anti-Reflective Coating Film - The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process. | 08-22-2013 |
20130216870 | CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME - Cap assembly, coupled to an open end of a battery can free from a beading portion, includes a top cap at an uppermost portion in a protrusive form forming a cathode terminal, a safety element below the top cap contacting the top cap, a safety vent contacting the safety element, a gasket surrounding outer circumferences of top cap, the safety element and vent, a cover surrounding the gasket so the top cap, safety element and vent adhere to each other, and a welding member at an upper portion of the cover having an outer end protruding more outwards than the outer end of the cover placed on the open end of the battery can, the welding member having a first notch at an upper surface thereof, protruding more than the outer end of the cover, and welded to the open end of the battery can where first notch is formed. | 08-22-2013 |
20130216871 | CAP ASSEMBLY OF NOVEL STRUCTURE AND CYLINDRICAL BATTERY EMPLOYED WITH THE SAME - Disclosed herein is a cap assembly disposed at an open upper end of a cylindrical container of a battery in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, wherein an electrode lead of the jelly roll is electrically connected to the lower end of a safety vent having notches, which are ruptured to discharge high pressure gas when high pressure is generated in the battery, and a safety element to interrupt current at a predetermined temperature is provided between the safety vent and the electrode lead. | 08-22-2013 |
20130216875 | BATTERY PACK OF EXCELLENT COOLING EFFICIENCY - Discussed herein is a battery pack configured to have a structure in which a battery pack case is provided at the upper part and the lower part thereof with a coolant inlet port and a coolant outlet port, respectively, the battery pack case is provided with a coolant introduction part and a coolant discharge part, the coolant introduction part includes (a) a parallel introduction part adjacent to the coolant inlet port, the parallel introduction part extending in parallel to a top of the unit cell stack and (b) an inclined introduction part connected to the parallel introduction part, the inclined introduction part extending from the coolant inlet port to an end of the battery pack case opposite to the coolant inlet port such that a distance between the inclined introduction part and the top of the unit cell stack is gradually decreased. | 08-22-2013 |
20130216876 | SECONDARY BATTERY OF IMPROVED SEALABILITY - Disclosed herein is a secondary battery having an electrode assembly placed in a prismatic container, wherein an upper part of the inside of an electrolyte injection hole formed in a base plate mounted to an open upper end of the prismatic container is configured to have a chamfered structure in which the diameter of the electrolyte injection hole is gradually decreased downward, a lower part of the inside of the electrolyte injection hole is configured to have a non-chamfered structure, the chamfered structure is formed in an irregular shape to increase the length of an electrolyte leakage route along which an electrolyte leaks out of the secondary battery, and, when a sealing member is pressed into the electrolyte injection hole, the sealing member is deformed so as to correspond to an internal structure of the electrolyte injection hole such that the electrolyte injection hole is sealed by the sealing member. | 08-22-2013 |
20130216880 | POUCH TYPE CASE AND BATTERY PACK INCLUDING THE SAME - The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity. | 08-22-2013 |
20130216897 | CATHODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode for a lithium secondary battery and a lithium secondary battery comprising the same. The cathode for a lithium secondary battery may include a current collector, a first composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the current collector, and a second composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the first composite layer. A specific surface area of the olivine-type lithium iron phosphate cathode active material powder in the second composite layer may be 0.8 times or less that of the olivine-type lithium iron phosphate cathode active material powder in the first composite layer. The cathode for a lithium secondary battery has excellent stability, high energy density, and improved cycle life characteristics. | 08-22-2013 |
20130216898 | INHIBITOR OF REDUCTION OF LIFE CYCLE OF REDOX SHUTTLE ADDITIVE AND NON-AQUEOUS ELECTROLYTE AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed is an inhibitor of the reduction of life cycle of a redox shuttle additive that undergoes oxidation-reduction cycling, the inhibitor being at least of one compound selected from the group consisting of vinylene carbonates, ethylene carbonates, cyclic sulfites and unsaturated sultones. Also, Disclosed is a non-aqueous electrolyte and secondary battery comprising the same inhibitor. | 08-22-2013 |
20130216902 | CARBON-COATED LITHIUM IRON PHOSPHATE OF OLIVINE CRYSTAL STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is a lithium iron phosphate with an olivine crystal structure wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the surface of the lithium iron phosphate by chemical bonding via a heterogeneous element other than carbon. Li | 08-22-2013 |
20130222915 | ANTI-REFLECTIVE COATING FILM - The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process. | 08-29-2013 |
20130224529 | BATTERY PACK OF NOVEL STRUCTURE - Disclosed herein is a battery pack having a plurality of battery cells electrically connected to each other, the battery cells being chargeable and dischargeable, wherein the battery pack includes two or more kinds of battery groups having different capacities or sizes, wherein each of the battery groups includes two or more battery cells having the same capacity or size, the battery cells in each of the battery groups are connected in series to each other, and the battery cells between the battery groups are connected in parallel to each other. | 08-29-2013 |
20130224537 | BATTERY COOLING SYSTEM AND BATTERY RACK APPLIED TO THE SAME - Disclosed is a battery cooling system having a main frame for defining a structure of a battery rack; a space dividing frame for dividing the inside of the main frame into a plurality of levels; a battery module located inside the main frame and supported by the space dividing frame; a pair of refrigerant guide plates respectively installed at the upper and lower ends of the battery module and installed to be inclined in the same direction with predetermined angles with respect to the upper and lower surfaces thereof; and side panels coupled to the sides of the main frame and having a channel slit formed in at least a part thereof. | 08-29-2013 |
20130224548 | BATTERY PACK OF IMPROVED DURABILITY - Disclosed herein is a battery pack including a bracket coupled between at least one side supporting member and a rear mounting member to distribute load of battery modules to a rear mounting member via the at least one side supporting member, thereby effectively supporting vibration of the battery pack in a forward and backward direction and load of the battery pack. | 08-29-2013 |
20130224549 | BATTERY MODULE WITH EXCELLENT COOLING EFFICIENCY AND COMPACT STRUCTURE AND MIDDLE OR LARGE-SIZED BATTERY PACK - Disclosed herein is a battery module including a plurality of battery cells mounted in a module case in a stacked state, wherein cooling members are mounted at interfaces between the battery cells, the module case is configured in a structure in which two opposite sides of the module case are open so that corresponding portions of the battery cell stack are exposed outward through the two open opposite sides of the module case, the cooling members are partially exposed outward through the two open opposite sides of the module case, and a coolant flows along the two open opposite sides of the module case while contacting the outwardly exposed portions of the cooling members. | 08-29-2013 |
20130224584 | ELECTRODE INCLUDING MULTI-LAYERED ELECTRODE ACTIVE MATERIAL LAYER AND SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to an electrode comprising multi-layered electrode active material layer and a secondary battery comprising the same. According to the embodiments of the present invention comprises electrode having multi-layered electrode active material layer, wherein the content of the active materials which forms the electrode active material layers is equally maintained and the loading amounts at each layer are either the same or different from each other, thereby solving the problem of performance deterioration caused by an increase in battery resistance due to non-uniform dispersion of a binder or the like. | 08-29-2013 |
20130224585 | HIGH-CAPACITY CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided is a cathode active material including lithium manganese-based oxide, wherein the lithium manganese-based oxide has a layered crystal structure, has a content of manganese (Mn) greater than contents of other transition metal(s), includes 1 mole or more of lithium (Li) with respect to 1 mole of lithium transition metal oxide, has a plateau potential range in which lithium deintercalation as well as oxygen release occurs during initial charging in a high voltage range of 4.4 V or more, has domains included in the layered crystal structure exhibiting electrochemical activity due to a structural change in a potential range of 3.5 V or less after the initial charging, and includes conductive materials for improving electrical conductivity of the lithium manganese-based oxide in a potential range of 3.5 V or less after the initial charging. | 08-29-2013 |
20130266852 | LITHIUM SECONDARY BATTERY OF IMPROVED HIGH-TEMPERATURE CYCLE LIFE CHARACTERISTICS - Disclosed is a lithium secondary battery comprising a cathode including a lithium-containing transition metal oxide, an anode including a carbon-based material, and a non-aqueous electrolyte with addition of a compound (A) and a compound (B) of formula (1). Incorporation of the compounds (A) and (B) into the electrolyte significantly improves the high-temperature performance and cycle life characteristics of the battery. | 10-10-2013 |
20130280969 | SECONDARY BATTERY PACK BASED ON MECHANICAL CONNECTION MANNER - Disclosed herein is a battery pack constructed in a structure in which a plurality of secondary battery cells are electrically connected to one another via a connection member while the secondary battery cells are mounted in a receiving part of a pack case having no partition, wherein the connection member is located between the battery cells arranged in the longitudinal direction or in both the longitudinal direction and the lateral direction, the connection member is connected, in a mechanical coupling manner, to a lower electrode terminal of the front battery cell in the longitudinal direction and/or to an upper electrode terminal of the rear battery cell in the longitudinal direction, and the connection member is elastically pressed while the connection member is located between the battery cells. | 10-24-2013 |
20130288057 | RESIN BLEND FOR MELTING PROCESS - Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing a resin article using the same and a resin article. The resin blend may include a first resin, and a second resin that comprises an acrylic copolymer containing a silica particle and has a molecular weight distribution of 1 to 2.5. The resin blend can improve surface characteristics of a resin article. Also, the resin blend can realize excellent scratch resistance of a resin article. Further, since an additional coating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased. | 10-31-2013 |
20130288104 | BATTERY CELL OF ASYMMETRIC STRUCTURE AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery cell configured to have a structure in which an electrode assembly including a separator disposed between a cathode and an anode is mounted in a battery case, wherein an asymmetric structure with respect to a central axis crossing the electrode assembly in plane is formed at a portion of at least one side of the electrode assembly constituting the outer circumference of the electrode assembly. | 10-31-2013 |
20130295398 | RESIN BLEND FOR MELTING PROCESS - Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing the same and a resin article having a certain layer separated structure. The resin blend may include a first resin, and a second resin that comprises a resin to which an organic functional group containing one oxygen atom or more is introduced, and that has a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s | 11-07-2013 |
20130295440 | MOISTURE-LIMITED ELECTRODE ACTIVE MATERIAL, MOISTURE-LIMITED ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an electrode active material containing moisture in an amount less than 2,000 ppm per 1 g of lithium metal oxide or moisture in an amount less than 7,000 ppm per 1 cm | 11-07-2013 |
20130302677 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material comprising a lithium manganese composite oxide with a spinel structure represented by the following Formula 1, wherein the lithium manganese composite oxide is surface-coated with a conductive polymer in an area of 30 to 100%, based on the surface area of the lithium manganese composite oxide: | 11-14-2013 |
20130302681 | CATHODE ACTIVE MATERIAL AND THE SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material comprising a lithium nickel manganese composite oxide with a spinel structure represented by the following Formula 1, wherein the cathode active material is surface-coated with a silane compound and a silicon content of the silane compound is 0.01 to 5% by weight, based on the total amount of the cathode active material: | 11-14-2013 |
20130309562 | SECONDARY BATTERY INCLUDING ELECTROLYTE ADDITIVE - Disclosed is a secondary battery including a cathode, an anode, and an electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the electrolyte includes an electrolyte additive to be decomposed at 4.5 V or higher to less than 5.5 V vs. reduction voltage of Li | 11-21-2013 |
20130316075 | CATHODE FOR FUEL CELL HAVING TWO KINDS OF WATER-REPELLENCY AND METHOD OF PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING SAME - A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls a water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell. | 11-28-2013 |
20130316223 | ANODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is an anode active material for secondary batteries enabling intercalation and deintercalation of lithium ions, the anode active material comprising lithium metal oxide containing a halogen atom. | 11-28-2013 |
20130316224 | Method For Preparing Secondary Battery And The Secondary Battery Prepared By Using The Same - Disclosed is a method for producing a secondary battery in which an electrode assembly comprising a cathode, an anode and a separator interposed between the cathode and the anode is accommodated in a battery case, the method comprising inserting the electrode assembly into the battery case, injecting an electrolyte into the battery case accommodating the electrode assembly to obtain a secondary battery, storing the secondary battery at a SOC of 1 to 20 for 3 hours to 10 days, removing gas present in the secondary battery, and sealing the battery case, wherein the anode comprises lithium titanium oxide (LTO) represented by the following Formula 1 as an anode active material: | 11-28-2013 |
20130317177 | OLEFIN COMPOSITION - Provided are an olefin composition, filler and an optoelectronic device. One illustrative olefin composition may be effectively used as a filling material for various optoelectronic devices. | 11-28-2013 |
20130324689 | 1-ALKENE-ACRYLATE BASED COPOLYMER - The present invention provides ethylene-acrylate based copolymer prepared by a method comprising step of a radical polymerization reaction of ethylene and acrylate based monomer under presence of a metal oxide or Lewis acid. The ethylene-acrylated based copolymer according to the present invention is processed into a polymer film, a transparency of the polymer is not affected. Due to such a feature, the copolymer can be used for optical products. | 12-05-2013 |
20130334718 | BIAXIAL-OPTICAL POLYNORBORNENE-BASED FILM AND MTEHOD OF MANUFACTURING THE SAME, INTEGRATED OPTICAL COMPENSATION POLARIZER HAVING THE FILM AND METHOD OF MANUFACTURING THE POLARIZER, AND LIQUID CRYSTAL DISPLAY PANEL CONTAINING THE FILM AND/OR POLARIZER - Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate. | 12-19-2013 |
20140002785 | PHOTO-CURABLE COMPOSITION, OPTICAL ANISTROPIC FILM AND ITS PREPARATION METHOD | 01-02-2014 |