Patent application number | Description | Published |
20100148115 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.106-17-2010 | |
20110089367 | PRECURSOR FOR PREPARATION OF LITHIUM TRANSITION METAL OXIDE - Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO | 04-21-2011 |
20110168944 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi′bNi″cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions. | 07-14-2011 |
20110195303 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.108-11-2011 | |
20120012780 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO | 01-19-2012 |
20120012781 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a lithium transition metal oxide having an α-NaFeO | 01-19-2012 |
20120043499 | NOVEL PRECURSOR FOR THE PREPARATION OF A LITHIUM COMPOSITE TRANSITION METAL OXIDE - Provided is a transition metal precursor comprising a composite transition metal compound represented by Formula 1, as a transition metal precursor used in the preparation of a lithium-transition metal composite oxide: | 02-23-2012 |
20120064395 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.103-15-2012 | |
20120112125 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi′bNi″cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions. | 05-10-2012 |
20130284972 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO | 10-31-2013 |
20140272587 | PRECURSOR PARTICLES OF LITHIUM COMPOSITE TRANSITION METAL OXIDE FOR LITHIUM SECONDARY BATTERY AND CATHODE ACTIVE MATERIAL COMPRISING THE SAME - Disclosed are precursor particles of a lithium composite transition metal oxide for lithium secondary batteries, wherein the precursor particles of a lithium composite transition metal oxide are composite transition metal hydroxide particles including at least two transition metals and having an average diameter of 1 μm to 8 μm, wherein the composite transition metal hydroxide particles exhibit monodisperse particle size distribution and have a coefficient of variation of 0.2 to 0.7, and a cathode active material including the same. | 09-18-2014 |
20140346393 | PRECURSOR FOR PREPARING LITHIUM COMPOSITE TRANSITION METAL OXIDE AND METHOD FOR PREPARING THE SAME - Disclosed is a transition metal precursor used for preparation of lithium composite transition metal oxide, the transition metal precursor comprising a composite transition metal compound represented by the following Formula 1: | 11-27-2014 |