Abstract: A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.

Abstract: A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1: x[Li2-y(M1)1-z(M2)y+zO3]-(1?x)[LiMeO2]??Formula 1 wherein 0<x<1, 0?y<1, 0?z<1, 0<y+z<1, M1 includes at least one transition metal, M2 includes at least one metal selected from magnesium (Mg), aluminum (Al), vanadium (V), zinc (Zn), molybdenum (Mo), niobium (Nb), lanthanum (La), and ruthenium (Ru), and Me includes at least one metal selected from nickel (Ni), cobalt (Co), manganese (Mn), iron (Fe), chromium (Cr), titanium (Ti), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B).

Abstract: A cathode active material including a lithium metal oxide represented by Formula 1 below: Li[LixMeyM?z]O2+d??Formula 1 wherein x+y+z=1, 0<x<0.33, 0.05?z?0.15, 0?d?0.1, Me includes at least one metal selected from the group consisting of manganese (Mn), vanadium (V), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), aluminum (Al), and boron (B), and M? includes at least one metal selected from the group consisting of germanium (Ge), ruthenium (Ru), tin (Sn), titanium (Ti), niobium (Nb), and platinum (Pt).

Abstract: A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements.

Abstract: A cathode active material including a lithium metal oxide represented by Formula 1: Li[LixMeyM?z]O(2+d)??Formula 1 wherein x+y+z=1, 0<x<0.33, 0<z?0.1, and 0?d?0.1, Me is at least one metal selected from Mn, V, Cr, Fe, Co, Ni, Al, and B, and M? is at least one metal selected from Sc, Y, and La.

Abstract: A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide.

Abstract: A positive active material including a lithium transition metal oxide with a layered or spinel structure; and a plurality of CNTs on a surface of the lithium transition metal oxide.

Abstract: A cathode active material includes a lithium metal phosphate represented by Formula 1; and one or more compounds selected from the group consisting of a metal oxynitride, a metal nitride, and a mixture thereof: LiMPO4??<Formula 1> where M is selected from the group consisting of Fe, Ti, V, Cr, Co and Ni.

Abstract: A cathode including an active material composite and a lithium battery using the same. The active material composite of the cathode includes a mixed oxide complex and a lithium-containing compound, the lithium-containing compound having a metal based compound coated on the surface of the lithium-containing compound.

Abstract: Disclosed is a lithium secondary battery including a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive and negative electrodes; and an electrolyte, where an alkaline metal powder layer is formed by dispersion coating on a surface of at least one of the positive and negative electrodes and the separator.

Abstract: An electrolyte solution for a secondary lithium battery, the electrolyte solution including: a lithium salt, a non-aqueous organic solvent, and a phenanthroline-based compound having a polar substituent. The electrolyte solution enables production of a secondary lithium battery having good high-temperature lifetime characteristics and good high-temperature preservation characteristics.

Abstract: Organic electrolytic solutions are provided. One solution includes a lithium salt, an organic solvent including a first solvent having high permittivity and a second solvent having a low boiling point, and a phosphate compound. By using the phosphate based compound, the organic electrolytic solution and the lithium battery including the organic electrolytic solution are flame resistant and have excellent charge/discharge properties. As a result, the lithium battery is highly stable and reliable and has good charge/discharge efficiency.

Abstract: A cathode active material including a lithium metal oxide represented by Formula 1 below: Li[LixMeyM?z]O2+d??Formula 1 wherein x+y+z=1, 0<x<0.33, 0.05?z?0.15, 0?d?0.1, Me includes at least one metal selected from the group consisting of manganese (Mn), vanadium (V), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), aluminum (Al), and boron (B), and M? includes at least one metal selected from the group consisting of germanium (Ge), ruthenium (Ru), tin (Sn), titanium (Ti), niobium (Nb), and platinum (Pt).

Abstract: An anode includes a collector; and an anode active material layer disposed on the collector comprises an anode active material, which is lithium oxide coated Li4Ti5O12, a conductive material, and a binder, wherein the lithium oxide intercalates and/or deintercalates lithium ions into and from the lattice structure of Li4Ti5O12. By coating the surface of the anode active material with lithium oxide, an anode including the surface-treated anode active material has a high capacity, high-rate properties, and a high initial efficiency.

Abstract: A cathode active material includes a lithium metal phosphate represented by Formula 1; and one or more compounds selected from the group consisting of a metal oxynitride, a metal nitride, and a mixture thereof: LiMPO4 ??<Formula 1> where M is selected from the group consisting of Fe, Ti, V, Cr, Co and Ni.

Abstract: Cathode active materials for lithium batteries are provided. In one embodiment, the cathode active material is a lithium complex material represented by the following Formula: yLi[Li1/3Me2/3]O2-(1-y)LiMe?O2. In the formula, 0<y?0.8, Me is a metal group having an oxidation number of +4 and includes a transition metal selected from Mo, W, V, Ti, Zr, Ru, Rh, Pd, Os, Ir, Pt and combinations thereof, and Me? includes a transition metal selected from Ni, Mn, Co and combinations thereof. Lithium batteries employing the cathode active materials are also provided and exhibit improved energy density and high-rate capabilities of an electrode.

Abstract: A cathode including an active material composite and a lithium battery using the same. The active material composite of the cathode includes a mixed oxide complex and a lithium-containing compound, the lithium-containing compound having a metal based compound coated on the surface of the lithium-containing compound.

Abstract: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a dicarboxylic acid derivative having at least one substituted silyl group. The organic electrolytic solution and the lithium battery employing the same have improved reductive decomposition stability, thereby decreasing an irreversible capacity after a first cycle and improving the charge/discharge efficiency and lifespan of the battery. The lithium battery has non-varying chemical properties at room temperature and a uniform thickness after standard charging, and thus has high reliability.

Abstract: Cathode active materials for lithium batteries are provided. In one embodiment, the cathode active material is a lithium complex material represented by the following Formula: yLi[Li1/3Me2/3]O2-(1-y)LiMe?O2. In the formula, 0<y?0.8, Me is a metal group having an oxidation number of +4 and includes a transition metal selected from Mo, W, V, Ti, Zr, Ru, Rh, Pd, Os, Ir, Pt and combinations thereof, and Me? includes a transition metal selected from Ni, Mn, Co and combinations thereof. Lithium batteries employing the cathode active materials are also provided and exhibit improved energy density and high-rate capabilities of an electrode.

Abstract: Cathodes and lithium batteries employing the same are provided. According to one embodiment, a cathode can minimize reductions in initial irreversible capacity, thereby improving electrode characteristics. In one embodiment, a cathode includes a cathode active material comprising a transition metal oxide and a complex compound represented by the formula xLi2MO3?(1?x)LiMeO2, where 0<x?0.8, and M and Me are each independently a metal ion.