Abstract: Disclosed are a pouch-shaped battery cell including a pouch-shaped battery case made of a laminate sheet, an electrode assembly received in the pouch-shaped battery case, and a venting portion configured to discharge gas in the pouch-shaped battery case, wherein the pouch-shaped battery case is provided with an opening, and the opening is opened or closed by the venting portion attached to the inside of the opening, and wherein the venting portion is opened to rapidly discharge gas when pressure in the pouch-shaped battery cell increases and reversibly blocks the inside and the outside of the battery cell, and a method of manufacturing the same.

Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.

Abstract: The present invention relates to a pouch-shaped battery sealing apparatus including a stopper capable of adjusting a thickness after sealing in a process of sealing the outer edge of a battery case made of a laminate sheet by applying heat and pressure thereto when a pouch-shaped battery is manufactured and a pouch-shaped battery sealing method using the same.

Abstract: The present invention relates to a pouch-shaped battery sealing apparatus including a position adjustment unit capable of adjusting relative positions of an electrode lead and an insulative film before sealing during a process of applying heat and pressure to an outer periphery of a battery case made of a laminate sheet to seal the outer periphery of the battery case when a pouch-shaped battery is manufactured and a pouch-shaped battery sealing method using the same.

Abstract: A lumbar support for a vehicle seat includes: a support panel made of an elastic material and supporting the user's lumbar vertebra; a first guide rod supporting the support panel; a second link bracket fastened to the first guide rod to be movable up and down; a first link bracket disposed under the second link bracket to be movable up and down with respect to the second link bracket, and having an operation block providing a supporting force to the lumbar vertebra; a first rotary screw vertically extending, thread-fastened to the first link bracket, and moving up and down the first link bracket by rotating about a longitudinal axis; and a second rotary screw vertically extending, thread-fastened to the second link bracket, and moving up and down the second link bracket by rotating about a longitudinal axis.

Abstract: A lumbar support for a vehicle seat includes: a support panel made of an elastic material and supporting the user's lumbar vertebra; a first guide rod supporting the support panel; a second link bracket fastened to the first guide rod to be movable up and down; a first link bracket disposed under the second link bracket to be movable up and down with respect to the second link bracket, and having an operation block providing a supporting force to the lumbar vertebra; a first rotary screw vertically extending, thread-fastened to the first link bracket, and moving up and down the first link bracket by rotating about a longitudinal axis; and a second rotary screw vertically extending, thread-fastened to the second link bracket, and moving up and down the second link bracket by rotating about a longitudinal axis.

Abstract: A battery cell evaluation method is provided. The method includes molding a pouch film to form a receiving part to which an electrode assembly is mounted, providing an impact to at least one of corners of the receiving part, storing the pouch film inside a second container together with a first container configured to contain an electrolytic solution, and detecting presence or absence of peeling of an outer layer of the pouch film.

Abstract: An electrode lead for achieving the above object is provided. The electrode lead includes a first electrode lead having one end connected to an electrode tab protruding from one side of an electrode assembly, a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to the outside of a battery case accommodating the electrode assembly, and a connection part configured to connect the first electrode lead to the second electrode lead, wherein the connection part is formed by a cured adhesive applied between the first electrode lead and the second electrode lead. The adhesive is formed by a mixture of a conductor and a solvent. The solvent is formed by a mixture of a polymer and a diluent. The solvent contains 5 wt % to 15 wt % of the diluent.

Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to the present invention, since an external protrusion protruding from the outside of an exterior constituting a body of the secondary battery as a component through which a secondary battery according to a related art is electrically connected to external electric equipment is removed, the secondary battery may be reduced in volume under the same capacity.

Abstract: A venting device for insertion into a sealing part of a pouch of a secondary battery includes: a housing configured to be inserted between two surfaces of the sealing part so as to be sealed together with the sealing part; a sheet disposed in the housing and defining a passage through which an inside and an outside of the pouch are configured to communicate with each other; a plate spring configured to open and close the passage according to an internal pressure of the pouch and made of a metal having elasticity; and a ball disposed between the sheet and the plate spring so as to contact or be spaced apart from the sheet at an outlet-side of the passage, thereby opening and closing the passage, wherein the ball has a hemispherical shape to be attached to an inner surface of the plate spring.

Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.

Abstract: Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between positive and negative electrodes, together with an electrolytic solution, the pouch-shaped battery case including an outer coating layer defining an outer surface of the battery case and configured to protect the electrode assembly from an outside of the battery case, the outer coating layer made of a polymer resin, a metal barrier layer located between the outer coating layer and an inner surface of the battery case, the metal barrier layer having high moisture-blocking efficiency and high thermal conductivity, and an inner sealant layer located between the metal barrier layer and an inner surface of the battery case, the inner sealant layer made of a polymer resin that has high thermal fusibility, the metal barrier layer includes a first metal that has high formability and a second metal that has high rigidity.

Abstract: To solve the above problem, a method for manufacturing an electrode lead according to an embodiment of the present invention includes: a step of manufacturing each of a first electrode lead and a second electrode lead by cutting a metal plate; a step of applying an adhesive to at least one of one end of the first electrode lead or the other end of the second electrode lead; a step of forming a lead stack by bonding the one end of the first electrode lead and the other end of the second electrode lead to each other; a step of placing the lead stack on a die; and a step of applying heat and pressure to a connection portion of the lead stack, in which the first electrode lead and the second electrode lead are connected to each other, by using a pressing device.

Abstract: To solve the above problem, a venting device inserted into a sealing part of a pouch of a secondary battery according to the present invention includes: a housing inserted between confronting surfaces of the sealing part and sealed together with the sealing part; an element made of a metal and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a ball disposed at an outlet-side of the passage, the ball configured to open and close the passage, wherein, in the element, an edge of an inner circumference of a surface of the outlet-side of the passage is chamfered or filleted so as to face the ball, and the element includes: a surface treatment layer formed on the chamfered or filleted surface; and a layer made of a polymer and fused to the surface treatment layer.

Abstract: Disclosed herein is a method for manufacturing an electrode lead. The method may include manufacturing each of a first electrode lead and a second electrode lead, bonding the first electrode lead to the second electrode lead form a connection part. Manufacturing the first electrode lead may include unwinding a first metal plate from a first metal reel, attaching a first tape to perform masking on a first connection area to form the connection part, plating and surface treating on the first metal plate, and removing the first tape. Manufacturing the second electrode lead may include unwinding a second metal plate from a second metal reel, attaching a second tape to perform masking on a second connection area to form the connection part, plating and surface treating the second metal plate, and removing the second tape.

Abstract: A battery case for a secondary battery according to an embodiment of the present invention for achieving the object can include a cup part provided with an accommodation space configured to accommodate an electrode assembly formed by stacking an electrode and a separator; a sealing part extending outward from the cup part; and a gas discharge part which is attached from the inside to a hole formed by perforating at least one of the cup part or the sealing part and through which a gas passes. The gas discharge part can include a gas discharge layer through which the gas passes; and an outer functional layer which is formed on an outer surface of the gas discharge layer and has hydrophobicity.

Abstract: A battery case for a secondary battery according to an embodiment of the present invention can include a cup part having an accommodation space configured to accommodate an electrode assembly in which electrodes and separators are stacked, a sealing part extending to the outside of the cup part, and a gas discharge part which is attached to a hole formed to be punched in at least one of the cup part or the sealing part and through which a gas passes. The gas discharge part can include a melted layer comprising a thermoplastic resin that is melted when heat is applied, and a thermosetting layer laminated on one surface of the melted layer and comprising a thermosetting resin that is not melted by heat.

Abstract: A venting device inserted into a sealing part of a pouch of a secondary battery according to an embodiment of the present invention includes: a housing inserted between confronting surfaces of the sealing part so as to be sealed together with the sealing part, the housing being made from a metal plate; a gasket made of a polymer and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a plate spring made of a metal, the plate spring being disposed in the housing and assembled with the gasket, the plate spring being configured to open and close the passage in response to a change in an internal pressure of the pouch, wherein the housing includes a crimping part crimped together with the gasket on an upper end of the housing.

Abstract: A battery case for a secondary battery according to an embodiment of the present invention can include a cup part having an accommodation space configured to accommodate an electrode assembly in which electrodes and separators are stacked; a sealing part extending to the outside of the cup part; a gas discharge part attached to a hole which is formed to be punched in at least one of the cup part or the sealing part from the outside and through which a gas passes; and a coating part applied to an inner circumferential surface of the hole and having electrolyte resistance, wherein the gas discharge part includes: a gas discharge layer through which the gas passes; and an outer functional layer formed on an outer surface of the gas discharge layer and having a hydrophobic property.

Abstract: A venting device inserted into a sealing part of a pouch of a secondary battery according to an embodiment of the present invention includes: a housing inserted between confronting surfaces of the sealing part so as to be sealed together with the sealing part, the housing being made from a metal plate; a gasket made of a polymer and disposed in the housing and through which a passage is defined providing gas communication between an inside and an outside of the pouch; and a plate spring made of a metal, the plate spring being disposed in the housing and assembled with the gasket, the plate spring being configured to open and close the passage in response to a change in an internal pressure of the pouch, wherein the housing includes a crimping part crimped together with the gasket on an upper end of the housing.