Abstract: Provided are an olivine-type positive electrode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same, wherein the olivine-type positive electrode active material may be represented by Formula 1: LiwMn1-(x+y+z)MxM?yM41zPO4 ??Formula [1] wherein, in Formula 1, 0.95<w?1.05, 0<x?0.1, 0<y?5 0.1, 0<z?0.1, provided that 0<x+y+z?0.2, and M, M?, and M? are each independently an element selected from the group consisting of Ni, Co, Fe, Mg, V, Zn, Cu, Al, and Ga.

Abstract: A lithium metal oxide composite for a lithium secondary battery includes a core portion formed of a Mn metal compound and a shell portion formed of a three-component system metal compound at an outside of the core portion. A method of preparing a lithium metal oxide composite for a lithium secondary battery includes: mixing an Mn metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a first precursor; thermally treating the obtained first precursor; mixing the thermally treated first precursor with a three component system metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a second precursor; and mixing the obtained second precursor with a lithium-containing compound to synthesize a powder via a firing.

Abstract: A lithium metal oxide composite for a lithium secondary battery includes a core portion formed of a Mn metal compound and a shell portion formed of a three-component system metal compound at an outside of the core portion. A method of preparing a lithium metal oxide composite for a lithium secondary battery includes: mixing an Mn metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a first precursor; thermally treating the obtained first precursor; mixing the thermally treated first precursor with a three component system metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a second precursor; and mixing the obtained second precursor with a lithium-containing compound to synthesize a powder via a firing.

Abstract: The present invention relates to an ink composition for spacer formation and a spacer element using the same, and more particularly to an ink composition for spacer formation including a) 10 to 70 parts by weight (dry weight) of a polymer emulsion; b) 0.1 to 50 parts by weight of weight of wetting agent; and c) 20 to 90 parts by weight of solvent, and a spacer element using the same. The ink composition of the present invention has a significantly low viscosity and can be sprayed easily by inkjet, so that it is useful for spacer formation in liquid crystal displays.

Abstract: The present invention relates to an composition for spacer formation and a spacer element using the same, and more particularly to an composition for spacer formation comprising a) 10 to 70 parts by weight (dry weight) of a polymer emulsion; b) 0.1 to 50 parts by weight of a wetting agent; and c) 20 to 90 parts by weight of a solvent, and a spacer element using the same. The composition of the present invention has a significantly low viscosity and can be sprayed easily by inkjet, so that it is useful for spacer formation in liquid crystal displays.

Abstract: The present invention relates to an ink composition for spacer formation and a spacer element using the same, and more particularly to an ink composition for spacer formation comprising a) 10 to 70 parts by weight (dry weight) of a polymer emulsion; b) 0.1 to 50 parts by weight of a wetting agent; and c) 20 to 90 parts by weight of a solvent, and a spacer element using the same.