Abstract: A flexible battery a first electrode layer, a first current collector layer disposed on the first electrode layer, where a plurality of through-holes is defined in the first current collector layer, a separator disposed on the first current collector layer, a second current collector layer disposed on the separator, where a plurality of through-holes is defined in the second current collector layer, and a second electrode layer disposed on the second current collector layer.

Abstract: An anode active material including: a core having a molybdenum-based material; and a coating layer formed on at least a portion of a surface of the core, wherein the coating layer comprises at least one material selected from the group consisting of molybdenum oxynitride and molybdenum nitride, a method of preparing the same, and an anode and a lithium battery.

Abstract: A cathode, a method of forming the cathode and a lithium battery including the cathode. The cathode includes a current collector and a cathode active material layer disposed on the current collector; the cathode active material layer includes a lithium transition metal oxide having a spinel structure, a conductive agent, and a binder; and at least a portion of a surface of the cathode active material layer is fluorinated.

Abstract: An anode active material, an anode including the anode active material, a lithium battery including the anode, and a method of preparing the anode active material. The anode active material includes: a multilayer metal nanotube including: an inner layer; and an outer layer on the inner layer, wherein the inner layer includes a first metal having an atomic number equal to 13 or higher, and the outer layer includes a second metal different from the first metal.

Abstract: An anode active material, an anode including the anode active material, a lithium battery including the anode, and a method of preparing the anode active material. The anode active material includes: a multilayer metal nanotube including: an inner layer; and an outer layer on the inner layer, wherein the inner layer includes a first metal having an atomic number equal to 13 or higher, and the outer layer includes a second metal different from the first metal.

Abstract: A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.

Abstract: A positive electrode active material including: a lithium complex oxide represented by Formula 1; and a carbon coating layer disposed on the lithium complex oxide, wherein, in a C1s XPS spectrum of the positive electrode active material, a peak intensity of a first peak at a binding energy from about 288 eV to about 293 eV is greater than a peak intensity of a second peak at a binding energy from about 283 eV to about 287 eV, and in an O1s X-ray photoelectron spectrum of the positive electrode active material, a peak intensity of a third peak at a binding energy from about 530.5 eV to about 535 eV is greater than a peak intensity of a fourth peak at a binding energy from about 527.5 electron volts to about 530 electron volts, LiaMbM?cM?dOe.

Abstract: A three-dimensional shaped battery includes a cell structure including a first electrode layer, a second electrode layer, and a separation layer disposed between the first electrode layer and the second electrode layer, where the cell structure may include a plurality of pattern units having different sizes from each other and a connecting portion which connects the pattern units to each other.

Abstract: A polymer electrolyte including: a lithium salt; an organic solvent; a fluorine compound; and a polymer of a monomer represented by Formula 1 below. H2C?C—(OR)n—OCH?CH2??Formula 1 In Formula 1, R is a C2-C10 alkylene group, and n is in a range of about 1 to about 1000.

Abstract: A polymer including a first repeating unit represented by Formula 1 and a second repeating unit including a substituted or unsubstituted C2-C30 alkenyl group: wherein, in Formula 1, groups R, R?, A, A?, Y, and Y? are defined in the specification.

Abstract: A negative electrode and a lithium battery including the same, the negative electrode including nanotubes including a Group 14 metal/metalloid, disposed on a conductive substrate.

Abstract: A negative electrode and a lithium battery including the same, the negative electrode including nanotubes including a Group 14 metal/metalloid, disposed on a conductive substrate.

Abstract: A stack type battery includes a stack including: a plurality of cathode sheets; a plurality of anode sheets, which are alternately disposed with the cathode sheets; and a plurality of separators, where each of the separator is disposed between a corresponding cathode sheet of the cathode sheets and a corresponding anode sheet of the anode sheets, where the stack includes first to third protrusions, the first protrusion includes a portion of the cathode sheets which does not overlap the anode sheets and the separators, and the second protrusion includes a portion of the anode sheets which does not overlap the cathode sheets and the separators.

Abstract: A flexible battery and a flexible electronic device including the flexible battery as a power source. The flexible battery includes a cell stack comprising a plurality of unit cells, and an external casing sealing the cell stack, wherein each of the unit cells comprises a negative electrode, a positive electrode, an electrolyte layer disposed between the negative electrode and the positive electrode, and a first polymer film at least partially surrounding the negative electrode, the positive electrode, and the electrolyte layer.

Abstract: A polymer including a first repeating unit represented by Formula 1, a polymer composition for a lithium battery including the polymer, an electrode for a lithium battery including the polymer composition, and a lithium battery including the electrode: wherein, in Formula 1, R, R?, A, A?, Y, and Y? are as defined in the specification.

Abstract: A silicon nanowire including metal nanoclusters formed on a surface thereof at a high density. The metal nanocluster improves electrical and optical characteristics of the silicon nanowire, and thus can be usefully used in various electrical devices such as a lithium battery, a solar cell, a bio sensor, a memory device, or the like.

Abstract: A silicon nanowire includes metal nanoclusters formed on a surface thereof at a high density. The metal nanoclusters improve electrical and optical characteristics of the silicon nanowire, and thus can be usefully used in various electrical devices such as a lithium battery, a solar cell, a bio sensor, a memory device, or the like.

Abstract: A flexible secondary battery includes an electrode stack structure. The electrode stack structure includes a first electrode layer including a first metal current collector, a second electrode layer including a second metal current collector, an isolation layer between the first electrode layer and the second electrode layer, connection tabs respectively extended from an end portion of the first metal current collector at a first end portion of the first electrode layer and an end portion of the second metal current collector at a first end portion of the second electrode layer; and a fixing element which fixes the end portions of the first and second metal current collectors only at a first end portion of the electrode stack structure. Second end portions of the first and second electrode layers opposite to the first end portions thereof are movable.

Abstract: A flexible battery and a flexible electronic device including the flexible battery as a power source. The flexible battery includes a cell stack comprising a plurality of unit cells, and an external casing sealing the cell stack, wherein each of the unit cells comprises a negative electrode, a positive electrode, an electrolyte layer disposed between the negative electrode and the positive electrode, and a first polymer film at least partially surrounding the negative electrode, the positive electrode, and the electrolyte layer.

Abstract: A three-dimensional shaped battery includes a cell structure including a first electrode layer, a second electrode layer, and a separation layer disposed between the first electrode layer and the second electrode layer, where the cell structure may include a plurality of pattern units having different sizes from each other and a connecting portion which connects the pattern units to each other.