Patent application number | Description | Published |
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 |
20150034865 | PRECURSOR FOR PREPARATION OF LITHIUM COMPOSITE TRANSITION METAL OXIDE AND METHOD OF PREPARING THE SAME - Disclosed are a transition metal precursor for preparation of a lithium composite transition metal oxide, the transition metal precursor including a composite transition metal compound represented by Formula 1 below and a hydrocarbon compound, and a method of preparing the same: | 02-05-2015 |
20150064557 | CATHODE ACTIVE MATERIAL INCLUDING LITHIUM TRANSITION METAL PHOSPHATE PARTICLES, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a cathode active material including lithium transition metal phosphate particles, wherein the lithium transition metal phosphate particles include a first secondary particle formed by agglomeration of two or more first primary particles, and a second secondary particle formed by agglomeration of two or more second primary particles in the first secondary particle, and a method of preparing the same. Since the cathode active material according to an embodiment of the present invention may include first primary particles and second primary particles having different average particle diameters, the exfoliation of the cathode active material from a cathode collector may be minimized and performance characteristics, such as high output characteristics and an increase in available capacity, of a secondary battery may be further improved. In addition, since the first secondary particles are porous, the secondary particles are collapsed and fractured due to rolling when used in a cathode. | 03-05-2015 |
20150064563 | METHOD OF MANUFACTURING LITHIUM NICKEL COMPLEX OXIDE, LITHIUM NICKEL COMPLEX OXIDE MANUFACTURED THEREBY, AND CATHODE ACTIVE MATERIAL INCLUDING THE SAME - Provided are a method of manufacturing a lithium nickel complex oxide including mixing a nickel-containing mixed transition metal precursor, a lithium compound, and a polyvinylidene fluoride-hexafluoropropylene (PVdF-HFP) copolymer, and heat treating the mixture, a lithium nickel complex oxide manufactured thereby, and a cathode active material including the lithium nickel complex oxide. | 03-05-2015 |
20150069293 | PRECURSOR FOR PREPARING OF LITHIUM COMPOSITE TRANSITION METAL OXIDE - Disclosed is a precursor for preparing a lithium composite transition metal oxide. More particularly, a transition metal precursor, including a composite transition metal compound represented by Formula 1 below, used to prepare a lithium transition metal oxide: | 03-12-2015 |
20150079473 | HIGH VOLTAGE POSITIVE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a cathode active material for high voltage and a lithium secondary battery including the same. More particularly, a cathode active material including spinel-type compound particles having a composition represented by Formula 1 below; and metal oxides or metal hydroxides present on surfaces of the spinel-type compound particles, and a lithium secondary battery including the same. | 03-19-2015 |
20150079474 | HIGH VOLTAGE POSITIVE ACTIVE MATERIAL AND METHOD FOR PREPARING THE SAME - Disclosed herein is a high voltage cathode active material and a method for preparing the same. The cathode active material includes particles of a spinel-type compound having a composition represented by Formula (1) and a carbon-based material present on surfaces of the particles of the spinel-type compound: | 03-19-2015 |