Abstract: A railess variable seatback type rear seat includes: a linear movement device configured to convert a rotation of a motor into a linear movement; a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward; and a reclining angle change device configured to convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward.

Abstract: An electrode assembly includes a radical unit in which electrodes and separators are alternately stacked, the radical unit having a structure in which one electrode is stacked at the uppermost end. An auxiliary unit is provided with a separation sheet disposed at the uppermost end side of the radical unit. The separation sheet includes a separation part disposed at the uppermost end side of the radical unit and a side surface protection part connected to each of side surfaces of the separation part and folded to contact a side portion of the radical unit to cover the side portion of the radical unit.

Abstract: A sealing device for a pouch-type battery includes an upper sealing block and a lower sealing block. The upper sealing block has a two-stage upper sealing groove, including a first upper step and a second upper step, and the lower sealing block has a two-stage lower sealing groove, including a first lower step and a second lower step. The upper sealing block contacts a first surface of an electrode lead sealing part of the pouch-type battery, and the lower sealing block contacts a second surface of the electrode lead sealing part of the pouch-type battery in a process of performing sealing through heat fusion. A pouch-type battery having an electrode lead sealing part formed by the sealing device is also provided.

Abstract: The present invention provides a secondary battery, in which an electrode assembly is embedded in a pouch, and a lead electrically connected to the electrode assembly has one side protruding to the outside of the pouch, the secondary battery comprising: the pouch in which the electrode assembly is embedded, and sealing is performed along an edge thereof; the lead having one end connected to the electrode assembly and the other end protruding to the outside of the pouch; and a lead film disposed between the lead and the pouch and adhering to each of the pouch and the lead when the sealing of the pouch is performed, wherein an expansion part expanded by a predetermined length along a longitudinal direction of the lead is formed on the pouch, and the lead film has an area so that the entire expansion part is accommodated therein.

Abstract: A secondary battery includes: an electrode assembly; an electrode lead; a battery case with an accommodation portion for the electrode assembly and a sealing portion sealing the accommodation portion; and a lead film. The sealing portion includes a connection-sealing region connected to the accommodation portion, a front end-sealing region, and a reinforcement-sealing region therebetween. The reinforcement-sealing region includes a compressed surface, provided in the sealing portion between the connection-sealing region and the front end-sealing region and recessed into the sealing portion, and raised surfaces, provided in the sealing portion between the connection-sealing region and the compressed surface and between the front end-sealing region and the compressed surface and each of which is formed thicker than the compressed surface. The battery case has a resin layer, a metal layer, and an insulating layer.

Abstract: Disclosed are a pouch type secondary battery, a battery pack, and a method for manufacturing the pouch type secondary battery. According to one aspect of the present invention, in an exterior accommodating an electrode assembly, a sealing part is formed along a circumference of the electrode assembly. The sealing part includes a first sealing part formed to cover an electrode lead, and one end of the first sealing part is formed below an upper end of a circumference of a cup formed in the pouch.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. The separator has a larger size than the electrode to expose an edge part of the separator to outside of the electrode and the separator. The edge parts of the separators included in one radical unit or in the cell stack part are attached to form a sealing part.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit having a same number of electrodes and separators alternately disposed and integrally combined is repeatedly disposed, or (b) a structure in which at least two kinds of radical units having a same number of electrodes and separators alternately disposed and integrally combined are disposed in a predetermined order, and a fixing part extending from a top surface along a side to a bottom surface thereof for fixing the cell stack part. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a radical unit in which electrodes and separators are alternately stacked, the radical unit having a structure in which one electrode is stacked at the uppermost end. An auxiliary unit is provided with a separation sheet disposed at the uppermost end side of the radical unit. The separation sheet includes a separation part disposed at the uppermost end side of the radical unit and a side surface protection part connected to each of side surfaces of the separation part and folded to contact a side portion of the radical unit to cover the side portion of the radical unit.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. The separator has a larger size than the electrode to expose an edge part of the separator to outside of the electrode and the separator. The edge parts of the separators included in one radical unit or in the cell stack part are attached to form a sealing part.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. The separator has a larger size than the electrode to expose an edge part of the separator to outside of the electrode and the separator. The edge parts of the separators included in one radical unit or in the cell stack part are attached to form a sealing part.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, the one kind or the at least two kinds of radical units having same number of electrodes and separators alternately disposed. The one kind of radical unit has four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or repeating structure of the four-layered structure. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. An outer separator that is a separator among separators of a radical unit positioned at the outermost part of the cell stack part is extended from a side of the cell stack part.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit having a same number of electrodes and separators alternately disposed and integrally combined is repeatedly disposed, or (b) a structure in which at least two kinds of radical units having a same number of electrodes and separators alternately disposed and integrally combined are disposed in a predetermined order, and a fixing part extending from a top surface along a side to a bottom surface thereof for fixing the cell stack part. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.

Abstract: Provided is a pouch type secondary battery including an electrode assembly accommodated in an accommodating part of a pouch exterior part. A vertex part of an inner surface of the accommodating part is rounded. The electrode assembly includes a unit stack part that has a structure (a) in which a type of radical units are repeatedly disposed, wherein electrodes and separators are alternately disposed and are integrally coupled in the radical units, and the number of the electrodes is the same as the number of the separators, or a structure (b) in which two or more types of radical units are disposed in a predetermined order, wherein electrodes and separators are alternately disposed and are integrally coupled in the radical units, and the number of the electrodes is the same as the number of the separators. Distal ends of neighboring ones of the separators are not adhered to each other.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit having a same number of electrodes and separators alternately disposed and integrally combined is repeatedly disposed, or (b) a structure in which at least two kinds of radical units having a same number of electrodes and separators alternately disposed and integrally combined are disposed in a predetermined order, and a fixing part extending from a top surface along a side to a bottom surface thereof for fixing the cell stack part. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a cell stack part having a structure of steps obtained by stacking at least two groups of radical units having different sizes or having different geometric shapes according to the size or the geometric shapes. The radical unit has a combined structure into one body by alternately disposing same number of electrodes and separators, and each step of the cell stack part has a structure in which one kind of radical units is disposed once or repeatedly, or a structure in which at least two kinds of radical units are disposed. The one kind of radical unit has a four-layered structure of first electrode, first separator, second electrode and second separator sequentially stacked or a repeating structure of the four-layered structure. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.