Patent application number | Description | Published |
20130273427 | SECONDARY BATTERY HAVING IMPROVED SAFETY - Disclosed is a secondary battery comprising an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode, the secondary battery comprising a moisture scavenger. | 10-17-2013 |
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 |
20130295455 | METHOD FOR PREPARING ELECTRODE MIX AND THE ELECTRODE MIX PREPARED BY USING THE SAME - Disclosed are a method for preparing an electrode mix comprising (i) adding an electrode active material, a conductive material and a binder to a solvent, (ii) further adding a surfactant to the mixture of step (i), and (iii) mixing the resulting mixture of step (ii) and an electrode mix for secondary batteries prepared by the method. | 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 |
20130313470 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material (and secondary battery comprising the same) comprising a combination of a lithium manganese composite oxide having a spinel structure represented by the following Formula 1 with a lithium nickel composite oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: | 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 |
20130330597 | ANODE ACTIVE MATERIAL HAVING HIGH CAPACITY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an anode active material comprising a lithium metal oxide, and a metal powder reacting with lithium ions present in an electrolyte to form a lithium alloy, or a metal oxide, the metal powder or the metal oxide having a content of not lower than 1% by weight and not higher than 30% by weight, based on the total weight of an anode mix, and a lithium secondary battery comprising the same. | 12-12-2013 |
20140120406 | BATTERY MODULE OF IMPROVED CONNECTION RELIABILITY AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery module including a plurality of unit modules, based on battery cells which can be charged and discharged, electrically connected to each other, wherein the unit modules are electrically connected to each other in series and/or in parallel or the unit modules are electrically connected to a bus bar in series and/or in parallel, the battery module has two or more electrical connection points, and the number of electrically connected members at each of the electrical connection points is less than the total number of the electrically connected members of the battery module. | 05-01-2014 |
20140349170 | METHOD OF MANUFACTURING ELECTRODE FOR LITHIUM SECONDARY BATTERY AND ELECTRODE MANUFACTURED USING THE SAME - Disclosed are a method of manufacturing an electrode for secondary batteries that includes surface-treating a current collector so as to have a morphology wherein a surface roughness R | 11-27-2014 |
20140349181 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING CATHODE AND ANODE HAVING DIFFERENT SHAPES - Disclosed is an electrode assembly including a plurality of alternately arranged cathode and anode plates, a separator interposed between the cathode plate and the anode plate, a plurality of cathode tabs respectively formed on the cathode plates, a plurality of anode tabs respectively formed on the anode plates, a cathode lead coupled to the cathode tabs, and an anode lead coupled to the anode tabs, wherein i) the cathode and anode tabs have different shapes and widths of the cathode tabs and the anode tabs are equal to 2 to 100% the length of electrode surfaces with the tabs formed thereon, or ii) the cathode tabs and the anode tabs are asymmetrically arranged with respect to electrode surfaces with the cathode and anode tabs formed thereon and widths of the cathode tabs and the anode tabs are equal to 5 to 45% the length of the electrode surfaces. | 11-27-2014 |
20140356704 | ELECTRODE ASSEMBLY INCLUDING CATHODE AND ANODE HAVING DIFFERENT WELDING PORTION SHAPES AND SECONDARY BATTERY INCLUDING THE SAME - Disclosed is an electrode assembly including a plurality of alternately arranged cathode and anode plates, a separator interposed between the cathode plate and the anode plate, a plurality of cathode tabs respectively formed on the cathode plates, a plurality of anode tabs respectively formed on the anode plates, a cathode lead coupled to the cathode tabs, and an anode lead coupled to the anode tabs, wherein the welding portions in which the cathode and anode tabs are respectively coupled to the cathode and anode leads have different shapes, or kinds of the cathode and anode tabs are identical and kinds of the cathode and anode leads are different. | 12-04-2014 |
20140377656 | LITHIUM BATTERY HAVING HIGHER PERFORMANCE - Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the anode includes a lithium titanium oxide (LTO) as an anode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V. | 12-25-2014 |
20140377657 | Lithium Secondary Battery With Excellent Performance - Disclosed is a lithium secondary battery including: an electrode assembly including a cathode including a cathode mixture layer formed on a cathode current collector, an anode including an anode mixture layer formed on an anode current collector, and a separator disposed between the cathode and the anode; and an electrolyte, wherein the anode includes lithium titanium oxide (LTO) as an anode active material, and four planes of the cathode mixture layer have the same or greater length than four planes of the anode mixture layer and thus the cathode mixture layer has the same or greater area than the anode mixture layer. | 12-25-2014 |
20140377661 | MULTI LAYERED ELECTRODE AND METHOD OF MANUFACTURING THE SAME - Disclosed are an electrode for secondary batteries including an electrode mixture coated on one surface or opposite surface of an electrode current collector, and a method of manufacturing the same. The electrode mixture includes an electrode mixture layer A, which is a portion close to a current collector, and an electrode mixture layer, which is a portion distant from a current collector. The electrode mixture layer A includes a mixture of two active materials, average diameters of which are different, and the electrode mixture layer B includes active materials, average diameters of which are the same. | 12-25-2014 |