Abstract: A magnetic sheet for a communications module includes a magnetic material. The magnetic sheet includes crushed cracks in a first region and a second region disposed adjacent to the first region. Degrees of crushed cracks are different in the first region and the second region.

Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the method. The all-solid batter may have edge portions that can be more effectively insulated. In particular, the all-solid battery may include a cathode layer, an anode layer, and an electrolyte layer, a first insulator disposed at an edge of the cathode layer and a second insulator disposed between the cathode layer and the first insulator, thereby forming a membrane of the second insulator for preventing contact between the cathode layer and the anode layer in pressing.

Abstract: A wireless communication antenna includes: a magnetic body including a plurality of bar-shaped unit ribbons arranged in columns, wherein the unit ribbons have shape anisotropy and a radiation direction on a side of the wireless communication antenna; and a solenoid coil including conductive patterns disposed around the magnetic body.

Abstract: Disclose are an electrolyte composite for a lithium secondary battery having an improved output; a cathode including a protective film on its surface; and a lithium secondary battery comprising the same.

Abstract: A magnetic sheet includes a magnetic layer, a heat radiation layer having a prominence and a depression formed in a surface and that faces the magnetic layer, and an adhesive layer disposed between the magnetic layer and the heat radiation layer, and including a heat radiation filler that has shape anisotropy.

Abstract: A coil component includes: a body having one surface and the other surface opposing each other in one direction; a coil portion including a coil pattern having at least one turn around the one direction, and embedded in the body; an external electrode disposed on the one surface of the body and connected to the coil portion; a shielding layer disposed on the other surface of the body; and an insulating layer disposed between the body and the shielding layer.

Abstract: A coil electronic component includes a magnetic body in which internal coil parts are embedded, and a metal shielding sheet disposed on at least one of an upper portion and a lower portion of the magnetic body in a thickness direction, in which permeability of the metal shielding sheet is 100 times or higher than permeability of magnetic metal powder contained in the magnetic body.

Abstract: A wireless power charging system includes a reception coil unit including an insulating layer, a first coil including a first body portion disposed as a spiral on one surface of the insulating layer and a first lead portion extending from one end of the first body portion and led out of the insulating layer, and a second coil including a second body portion formed on the other surface of the insulating layer and electrically connected to the other end of the first body portion through a via and a second lead portion extending from the second body portion and led out of the insulating layer. The second coil has a width larger than that of the first coil and has a thickness smaller than that of the first coil.

Abstract: A wireless communications antenna includes: a magnetic body including one or more slits formed therein; and a coil part having solenoid form and disposed around the magnetic body, wherein the one or more slits are configured such that the magnetic body is not disconnected and a magnetic path of the magnetic body is continuous.

Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the method. The all-solid batter may have edge portions that can be more effectively insulated. In particular, the all-solid battery may include a cathode layer, an anode layer, and an electrolyte layer, a first insulator disposed at an edge of the cathode layer and a second insulator disposed between the cathode layer and the first insulator, thereby forming a membrane of the second insulator for preventing contact between the cathode layer and the anode layer in pressing.

Abstract: An antenna device includes: a magnetic portion comprising a first surface and a second surface opposing the first surface; and a coil portion including a conductive wiring comprising a plurality of turns wound around the magnetic portion in a solenoid form, wherein in the coil portion, intervals between turns of the conductive wiring disposed on the first surface and intervals between turns of the conductive wiring disposed on the second surface are different from each other. Therefore, a recognition rate of the antenna device may be improved.

Abstract: A magnetic sheet includes a magnetic made of an Fe-based alloy, wherein the magnetic layer includes a first surface region and a second surface region opposing each other in a thickness direction of the magnetic layer, and an internal region disposed between the first surface region and the second surface region, and a crystallinity of the first surface region is higher than a crystallinity of the second surface region.

Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, bent plural times in a direction in which it connects the electrode assembly and the outer lead to each other, and cut by expansion force of the pouch case.

Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, and cut by expansion force of the pouch case.

Abstract: A magnetic field shielding structure includes a magnetic layer and a resonance reactive shielding circuit including a capacitor and a conductor connected to the capacitor and having a loop form. At least a portion of the magnetic layer overlaps an area surrounded by the conductor in a thickness direction of the magnetic layer.

Abstract: A magnetic sheet includes a first region and a second region disposed adjacent to each other on a same surface, wherein the first region includes first crack lines formed in a first direction, and the second region includes second crack lines formed in a second direction.

Abstract: A method of manufacturing a magnetic substance includes forming crack lines arranged in one direction on a magnetic sheet by crushing the magnetic sheet to divide the magnetic sheet by the crack lines; stacking the magnetic sheet with other magnetic sheets into layers; and press-processing the stacked magnetic sheets.

Abstract: A magnetic sheet includes one or more magnetic layers formed of a metal ribbon, the metal ribbon includes fragments with metal oxide coating layers formed in spaces between the fragments.

Abstract: A magnetic sheet includes one or more magnetic layers formed of a metal, the magnetic layer includes first and second regions having different degrees of crystallinity from each other.

Abstract: A wireless power transmission module includes a coil portion having a spiral form and including a hollow portion; and a magnetic portion including a coil accommodation portion in which the coil portion is disposed, the coil accommodation portion being formed as a hollow space in an upper surface of the magnetic portion, and having a bowl form having a greatest width at the upper surface of the magnetic portion; and a magnetic field concentration portion protruding upwardly from a central portion of the coil accommodation portion through the hollow portion of the coil portion.