Abstract: A lithium ion secondary battery includes: a plurality of cathodes including a cathode current collector, a cathode coating layer coating the cathode current collector, and a cathode lead; a plurality of anodes including an anode current collector, an anode coating layer coating the anode current collector, and an anode lead; a separation membrane positioned between the cathodes and the anodes; first bent portions where a plurality of cathode leads are bent at points spaced apart from the cathode coating layer; second bent portions where the plurality of cathode leads are bent at points where the plurality of cathode leads bent at the first bent portions meet; and a first overlapping portion at which the plurality of cathode leads bent at the second bent portions overlap in parallel. The first overlapping portion includes a portion welded to the plurality of cathode leads overlapping in parallel and a non-welded portion.

Abstract: Disclosed is a lithium secondary battery having an improved lifetime. The lithium secondary battery may include: a cathode including a cathode active material; an anode including an anode active material; a separator disposed between the cathode and the anode; and an electrolyte including bis(trimethylsilyl) 2,2-thiodiacetate.

Abstract: Provided are a cathode active material for a lithium secondary battery, a cathode and a lithium secondary battery each including the same, and a method of manufacturing the same. The cathode active material for a lithium secondary battery includes a core including a lithium metal oxide and a coating layer formed on a surface and the inner grain boundaries of the core, wherein the coating layer includes a metal sulfide.

Abstract: Disclosed are a lithium secondary battery including: a positive electrode; a negative electrode; an electrolyte; and a separator including a separator substrate and a ceramic layer formed on one surface or both surfaces of the separator substrate. Particularly, the ceramic layer may include a first ceramic particle including an epoxide group and a second ceramic particle including an amine group, and the first ceramic particle may be chemically bonded to the second ceramic particle.

Abstract: A cathode active material for a lithium secondary battery, the cathode method including a core including a lithium metal oxide and a coating layer disposed on the surface and the inner grain boundaries of the core, wherein the coating layer includes a metal carbide, and a method of manufacturing the same.

Abstract: Disclosed is lithium secondary battery that may include: a positive electrode; a negative electrode; an electrolyte; and a separator positioned between the positive electrode and the negative electrode. The separator may include: a separator substrate; and a fibrous adhesive layer formed on one or both surfaces of the separator substrate.

Abstract: An all-solid-state battery includes: a cathode substrate; a cathode portion; a solid electrolyte layer; an anode portion; and an anode substrate. The cathode portion includes a cathode active material, a first solid electrolyte, a conductive material, and a binder, the anode portion is configured by a first anode portion having a pore structure and a second anode portion having metal foil, and the first anode portion includes a second solid electrolyte, a conductive material, and a binder.

Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.

Abstract: An all-solid-state battery includes: a cathode substrate; a cathode portion; a solid electrolyte layer; an anode portion; and an anode substrate. The cathode portion includes a cathode active material, a first solid electrolyte, a conductive material, and a binder, the anode portion is configured by a first anode portion having a pore structure and a second anode portion having metal foil, and the first anode portion includes a second solid electrolyte, a conductive material, and a binder.

Abstract: The present invention provides a secondary battery that includes a metal ion receptor, which can absorb metal dendrites generated on the surface of a cathode while the battery is used, in a battery cell, whereby it is possible to improve safety by suppressing growth of dendrites and preventing a short due to a dendrite by making metal dendrites be absorbed in the metal ion receptor before the dendrites growing on the surface of the cathode reach the surface of an anode.

Abstract: An all-solid-state battery includes: a cathode substrate; a cathode portion; a solid electrolyte layer; an anode portion; and an anode substrate. The cathode portion includes a cathode active material, a first solid electrolyte, a conductive material, and a binder, the anode portion is configured by a first anode portion having a pore structure and a second anode portion having metal foil, and the first anode portion includes a second solid electrolyte, a conductive material, and a binder.

Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the same for efficiently insulating an edge portion of the all-solid battery. Particularly, the all-solid batter may include a hybrid current collector comprising a porous metal current collector at the edge portions thereof, and a cathode layer or an anode layer may be further fabricated by coating a cathode active material or an anode active material on the hybrid current collector. Therefore, a short-circuit of the edge portion that may occur due to the detachment of the electrode material at the edge portion of the electrode may be prevented and a use rate and energy density of the edge portion electrode may be improved.

Abstract: Disclosed are an electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same. The electrode for a lithium secondary battery includes a lithium metal matrix layer, and a support that is formed in a net-shape and impregnated into the lithium metal matrix layer.

Abstract: Disclosed are an electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same. The electrode for a lithium secondary battery includes a lithium metal matrix layer, and a support that is formed in a net-shape and impregnated into the lithium metal matrix layer.

Abstract: Disclosed is a lithium secondary battery including: a positive electrode current collector comprising a positive electrode material mixture; a negative electrode current collector comprising of a negative electrode material mixture and laminated on the positive electrode current collector; a separator disposed between the positive electrode current collector and the negative electrode current collector; and a composite conductive material coated on the separator which faces the positive electrode current collector.

Abstract: A wireless charging system for a vehicle includes a wireless power receiver receiving electric power wirelessly. A heat transfer device transferring heat generated from the wireless power receiver. A rechargeable battery is charged with the electric power received from the wireless power receiver and heated by receiving the heat that is transferred by the heat transfer device.

Abstract: A battery cell includes an electrode assembly, a pouch case accommodating the electrode assembly, and an electrode lead having an outer lead of which at least a portion outwardly protrudes from the pouch case and an inner lead connected to the electrode assembly and the outer lead, wherein the inner lead and the outer lead are connected by a coupling portion, and the coupling portion is fractured when the pouch case expands.

Abstract: A battery module having a bipolar cell includes a plurality of anode plates and cathode plates alternately stacked and connected to each other in series. The anode plates have anode terminals and measuring terminals for measuring a voltage, and the respective cathode plates have cathode terminals and measuring terminals for measuring a voltage, such that steps are formed in the anode terminals, cathode terminals, and measuring terminals. A voltage monitoring terminal part also has steps formed in terminal connecting parts to correspond to the measuring terminals, allowing the measuring terminals to be inserted therein for measuring a voltage of the bipolar cell. The voltage of the bipolar cell is measured in a process to improve defect sorting performance to more easily detect an abnormal cell, thereby making it possible to improve marketability, durability and safety of the battery.

Abstract: The present invention relates to a functional shoe and, more particularly, to a shoe having a sole and a body which are freely separated and coupled so as to have a function of changing a color thereof according to wear of the sole of the shoe and a fashion and a shape thereof according to a function. The present invention provides the functional shoe in which an interval between the body and the sole of the shoe is not widened and the body and the sole of the shoe are also easily coupled, using a coupling structure of the surface of the body of the shoe coupled to the sole of the shoe.

Abstract: Disclosed are a positive electrode for a lithium ion battery and a lithium ion battery comprising the same. The positive electrode for a lithium ion battery includes a composite conductive layer comprising a binder and a conductive and is formed on a positive electrode active material layer, such that output and safety is improved at the same time. Further, battery life time is improved by inhibiting reaction on the interface between the electrode active material and a separator.