Patent application number | Description | Published |
20120217452 | MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a mixed cathode active material including lithium manganese oxide expressed as Chemical Formula 1 and a stoichiometric spinel structure Li | 08-30-2012 |
20120244432 | MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a mixed cathode active material including layered structure lithium manganese oxide expressed as Chemical Formula 1 and a second cathode active material having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode active material and the lithium secondary battery including the same may have improved safety and simultaneously, may be used in an operating device requiring the foregoing battery by widening a state of charge (SOC) range able to maintain power more than a required value by allowing the second cathode active material to complement low power in a low SOC range. | 09-27-2012 |
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 |
20130228718 | COMPOSITE CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS, AND SECONDARY BATTERY, BATTERY MODULE, AND BATTERY PACK INCLUDING THE SAME - Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. | 09-05-2013 |
20140147727 | HIGH-CAPACITY CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a cathode active material having high capacity and excellent lifetime characteristics as well as being inexpensive by mixing transition metal oxide having high irreversible capacity with composite dimensional manganese oxide (CDMO) of the following Chemical Formula 1, which has high capacity and good lifetime characteristics but is difficult to be charged and discharged by being used alone, and a lithium secondary battery including the cathode active material: | 05-29-2014 |
20140231720 | POSITIVE ELECTRODE ACTIVE MATERIAL WITH IMPROVED OUTPUT AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - A mixed positive electrode active material comprising a lithium manganese oxide represented by following [Chemical Formula 1] and a second positive electrode active material represented by following [Chemical Formula 2], and a lithium secondary battery comprising the same are disclosed. | 08-21-2014 |
20140356715 | COMPOSITE CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS, AND SECONDARY BATTERY, BATTERY MODULE, AND BATTERY PACK INCLUDING THE SAME - Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. | 12-04-2014 |
20160108507 | Chromium-Aluminum Binary Alloy Having Excellent Corrosion Resistance and Method of Manufacturing Thereof - The present disclosure relates to a chromium-aluminum binary alloy with excellent corrosion resistance and a method of producing the same, and more particularly to a chromium-aluminum binary alloy with excellent corrosion resistance, including: 1 to 40% by weight of aluminum (Al), the balance of chromium (Cr), and other unavoidable impurities with respect to a total weight of the alloy, and a method of producing a chromium-aluminum binary alloy with excellent corrosion resistance, the method including: (Step | 04-21-2016 |