Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based oxide. A crystallite size in a (104) plane is in a range from 50 nm to 100 nm, and a slab ratio is in a range from 0.4 to 0.45. An active capacity of the cathode active material can be improved, and an elution amount of doping elements during washing process can be reduced, thereby improving capacity properties of a lithium secondary battery.

Abstract: A lithium secondary battery for thermal runaway delay, includes an electrode coated with a coating ink prepared by the method The method of preparing a coating ink composition uses expandable graphite (EG) as a starting material to obtain non-oxidized graphene, so there is no reduction process, no acid is used, and through a simple manufacturing process, manufacturing costs and times can be reduced while enabling mass-production and causing no environmental problems. Further, the coating ink composition prepared by the method of preparing the coating ink composition can improve properties such as viscosity, dispersion stability, electrical conductivity, and substrate adhesion of the ink by using a polymer as an additive. In addition, by coating the electrode of the secondary battery with the coating ink composition containing graphene nanoplatelets or non-oxidized graphene, thermal runaway due to overload of thermal energy generated within the secondary battery can be delayed and prevented.

Abstract: A liquid cooling structure may include a lower structure and an upper structure. The lower structure may be configured to cover one surface of an object. The upper structure may be combined with the lower structure to provide a channel through which a cooling fluid may flow. The channel may include a plurality of passages connected between a channel inlet through which the cooling fluid may enter and a channel outlet through which the cooling fluid may exits.

Abstract: A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: Disclosed is a method of producing a reusable positive electrode active material, including the steps of: dipping a stack cell including a stacked and integrated positive electrode plate, separator and negative electrode plate, in a polar solvent to separate the positive electrode plate; heat treating the separated positive electrode plate to perform thermal decomposition of a binder and a conductive material in a positive electrode material layer of the positive electrode plate, separating a current collector from the positive electrode plate and recovering an active material from the positive electrode active material layer; washing the recovered active material with an aqueous lithium compound solution showing alkalinity in an aqueous solution state; and adding a lithium precursor to the washed active material and carrying out annealing to obtain a reusable positive electrode active material.

Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.

Abstract: The pharmaceutical composition according to the present invention can be usefully used for the prevention or treatment of systemic fibrosis.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: A cathode active material for a lithium secondary battery including a lithium-transition metal composite oxide particle is provided. A crystal grain size of the lithium-transition metal composite oxide particle measured by an XRD analysis is 250 nm or more, and an XRD peak intensity ratio of the lithium-transition metal composite oxide particle is 9.8% or less. A lithium secondary battery including the lithium-transition metal composite oxide particle and having improved life-span and rate capability is provided.

Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.

Abstract: The present disclosure relates to a pharmaceutical composition that can be usefully used for the prevention or treatment of fibrosis. According to the present invention, there is a feature that the preventive or therapeutic effect of fibrosis can be further enhanced by using the first component and the second component in combination.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: A cathode active material for a lithium secondary battery has a structure of a lithium-nickel-based metal oxide. A crystal size in a (104) plane defined by Equation 1 is less than 200 nm. A thickness of a TM slab measured by a Rietveld method in a crystal structure of a space group R-3m by an X-ray diffraction (XRD) analysis is 2.15 ? or less. A thickness of a Li slab thickness measured by the Rietveld method in the crystal structure of the space group R-3m by the XRD analysis is 2.585 ? or more.

Abstract: A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a lattice strain (?) of 0.18 or less, which is calculated by applying Williamson-Hall method defined by Equation 1 to XRD peaks measured through XRD analysis, and having an XRD peak intensity ratio of 8.9% or less, which is defined by Equation 2. By controlling the lattice strain and XRD peak intensity ratio of the lithium-transition metal composite oxide particle, a lithium secondary battery with improved life-span characteristics as well as output characteristics is provided.

Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.

Abstract: Provided is a method for recovering and reusing an active material from a positive electrode scrap.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium-transition metal oxide particle. The lithium-transition metal oxide particle has a FWHM ratio measured by an in-situ X-ray Diffraction spectroscopy (XRD) and defined by Equation 1 of 400% or less. Life-span properties of a lithium secondary battery can be improved by preventing deformation of a lattice structure and/or a crystal structure in the lithium-transition metal composite oxide particles.