Abstract: There is provided a cathode active material for a lithium ion battery having good battery properties. The cathode active material for a lithium ion battery is represented by a composition formula: LixNi1?yMyO2+?wherein M is one or more selected from Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr; 0.9?x?1.2; 0<y?0.7; and ?>0.1, and has a moisture content measured by Karl Fischer titration at 300° C. of 1100 ppm or lower.

Abstract: An organic electrolyte for magnesium batteries including an ether solvent; a magnesium compound represented by Formula 1 dissolved in the ether solvent; and a Lewis acid: wherein CY1 is an optionally substituted C6-C50 aromatic ring, X1 is, each independently, an electron withdrawing group, X2 is a halogen, n is an integer of 1 to 10, and an angle between a CY1-X1 bond and a CY1-Mg bond is 150 degrees or less.

Abstract: The present invention relates to a lithium manganese composite oxide and a method for preparing the same, and more particularly, to a lithium manganese composite oxide and a method for preparing same, in which a wet-milling process and a spray-drying process are applied, and the abundance ratio of Mn3+ ions to Mn4+ ions at the surface of the composite oxide is adjusted by controlling an oxidizing atmosphere during heat treatment.

Abstract: A method for manufacturing the lithium ion conductive substance is provided that includes the following steps: (a) a step of forming an inorganic substance that contains predetermined quantities of a Li component, an Al component, a Ti component, a Si component, and a P component, into a sheet shape, and (b) a step of interposing between materials that contain at least one kind of element selected from Zr, Hf, Y, and Sm, and sintering, a sheet-shaped formed body obtained at step (a).

Abstract: An alumina sintered body contains alumina as a main component and titanium. The alumina sintered body further contains at least one element selected from the group consisting of lanthanum, neodymium, and cerium. Aluminum is contained in the alumina sintered body in an amount such that a ratio of aluminum oxide to total oxides in the alumina sintered body becomes 93.00 to 99.85% by weight where the total oxides are defined as a total amount of all oxides contained in the alumina sintered body. Titanium is contained in an amount such that a ratio of titanium oxide to the total oxides becomes 0.10 to 2.00% by weight. Lanthanum, neodymium, and cerium are contained in a combined amount such that a ratio of the combined amount to the total oxides becomes 0.05 to 5.00% by weight. Volume resistivity is 1×105 to 1×1012 ?·cm at room temperature.

Abstract: A moisture absorbent for an organic EL element having hydrophobicity and no reduction in moisture absorption speed, and a method for producing the moisture absorbent are provided. The moisture absorbent for an organic EL element includes, as a main component, calcium oxide particles each having an alkoxide layer on the surface thereof. Furthermore, the method for producing a moisture absorbent for an organic EL element includes dry-pulverizing calcium oxide in the presence of an alcohol, and thereafter dry-treating the pulverized calcium oxide.

Abstract: Disclosed is cathode active material comprising a combination of a lithium manganese composite oxide having a spinel structure represented by the following Formula 1 with a lithium nickel composite oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2?yO4?zAz??(1) wherein 0.9?x?1.2, 0<y<2, and 0?z<0.2; M is at least one element selected from the group consisting of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti and Bi; and A is at least one monovalent or bivalent anion, and Li1+y?Niz?M?1?z?O2?z?A?z???(2) wherein 0?y??0.1, 0<z??0.5, and 0?z?<0.2; M? is at least one selected from the group consisting of elements stable for 6-coordination, including Mn, Co, Mg and Al; and A? is at least one monovalent or bivalent anion. Disclosed is also a secondary battery comprising the cathode active material.

Abstract: Disclosed is a cathode active material (and secondary battery comprising the same) comprising a combination of a lithium manganese composite oxide having a spinel structure represented by the following Formula 1 with a lithium nickel composite oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2?yO4?zAz??(1) wherein 0.9?x?1.2, 0<y<2, and 0?z<0.2; M is at least one element selected from the group consisting of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti and Bi; and A is at least one monovalent or bivalent anion, and Li1+y?Niz?M?1?z?O2?z?A?z???( 2) wherein 0?y??0.1, 0.5<z??0.9, and 0?z?<0.2; M? is at least one selected from the group consisting of elements stable for 6-coordination, including Mn, Co, Mg and Al; and A? is at least one monovalent or bivalent anion.

Abstract: A lithium silicate-based compound according to the present invention is expressed by a general formula, Li(2?a+b)AaMn(1?x?y)CoxMySiO(4+?)Cl? (In the formula: “A” is at least one element selected from the group consisting of Na, K, Rb and Cs; “M” is at least one member selected from the group consisting of Mg, Ca, Al, Ni, Fe, Nb, Ti, Cr, Cu, Zn, Zr, V, Mo and W; and the respective subscripts appear to be as follows: 0?“a”<0.2; 0?“b”<1; 0<“x”<1; 0?“y”?0.5; ?0.25?“?”?1.25; and 0?“?”?0.05). The lithium silicate-based compound is used as a positive-electrode active material for secondary battery whose discharge average voltage is higher, and which is able to sorb and desorb lithium ions.

Abstract: A conductive paste is provided, which includes 3 wt % to 20 wt % of epoxy resin, 10 wt % to 25 wt % of solvent, 0.3 wt % to 5 wt % of latent curing agent, 3.5 wt % to 35 wt % of flaky metal powder surface-treated by saturated fatty acid, and 35 wt % to 75 wt % of flaky metal powder surface-treated by unsaturated fatty acid.