An apparatus for compressing a joint between an electrode tab extending from an electrode assembly and electrode lead includes an upper pressing unit, a lower pressing unit, a suction unit, and a driving unit for moving the upper and lower pressing units up and down. The apparatus includes an air…
A battery module cooled by insulating oil, and a battery pack including the same, include a battery cell stack, in which a plurality of battery cells are stacked; electrode leads formed so as to protrude from the battery cells; a frame covering the upper, lower, left, and right surfaces of the…
A polymer solid electrolyte laminate and a preparation method thereof are provided. The polymer solid electrolyte laminate includes a protective layer formed on at least one surface of a polymer solid electrolyte, and the protective layer is capable of protecting the polymer solid electrolyte from…
A battery performance diagnosis apparatus according to an embodiment disclosed herein includes memory and one or more processors configured to generate a diagnosis command for diagnosing a first channel among a plurality of channels of a charger/discharger, data, when a battery is inserted into the…
A negative electrode includes a negative electrode active material layer that includes a negative electrode active material, a binder, a first conductive agent, and a second conductive agent. In the negative electrode, the number average length of the second conductive agent measured using an…
A method for manufacturing a pouch-type secondary battery according to an embodiment of the present invention may include: a first sealing operation of fusing a lead film, which is attached to an electrode lead of an electrode assembly, to a sealing portion of a pouch in which the electrode…
Disclosed herein are a case for secondary battery, a secondary battery including the case, and a method for manufacturing the case for the secondary battery. According to the present disclosure, a gas discharge device can be formed in the case for a secondary battery. The case may include a recess…
Disclosed is battery cell including a reception unit of a battery case having an electrode assembly and an electrolytic solution received therein, a gas storage unit disposed outside the reception unit, a storage space in the gas storage unit being partitioned into two or more sections, and a…
An electrode assembly manufacturing method according to the present disclosure uses a pre-compressed separator substrate. Therefore, a reduction in thickness of the separator by the pressure applied in a lamination process during the manufacture of an electrode assembly is small. For this reason…
A battery module includes a cell stack having a plurality of battery cells stacked in one direction, and an ICB assembly electrically connected to the plurality of battery cells to sense voltage information. The ICB assembly includes front and rear bus bar frames, a sensing member, and at least one…
A slurry supply device includes a slurry tank for storing slurry; a temperature controller for supplying hot or cold water to the slurry tank to control the temperature of the slurry; and a double pipe for supplying the slurry to the slurry tank while being connected to the slurry tank and for…
The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active…
An electrode assembly manufacturing apparatus for fabricating a stack includes a stack table, gripper, and first press unit. The stack includes a first electrode, a second electrode, and a section of a separator between the first and the second electrodes. The stack table is configured for…
A stacking inspection apparatus includes: camera units that generate an aligned image by photographing four corner points of the outer periphery of the electrode plates or the unit cells at an upper part in a stacking direction of the electrode plates or the unit cells; and light irradiation units…
Disclosed is a battery module with improved energy density and cooling efficiency. To achieve the object, the battery module according to the present disclosure includes a plurality of cylindrical battery cells electrically connected to each other and arranged in a horizontal direction, an upper…
A positive electrode active material for a secondary battery is provided, which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a particle of the lithium composite transition metal oxide includes a core portion and a resistance…
A silicon carbon composite, a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack are provided. The silicon carbon composite satisfies a condition of 3≤((B+C)/A)
A silicon carbon composite, a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack are provided. The silicon carbon composite satisfies a condition of 1.3≤((B+C)/A)
A busbar assembly includes a busbar, an insulating layer, and a cover plate. The busbar includes a body part and end parts extending from both ends of the body part and defining a through hole The insulating layer surrounds the body part, and the cover plate covers the insulating layer and the end…
An electrode assembly has a shape in which an electrode stack, which includes: a positive electrode including a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector; a negative electrode…
An electrode assembly includes a positive electrode having an insulating coating layer. More particularly, an electrode assembly includes at least one first monocell and a second monocell stacked on the uppermost end of the first monocell, and the second monocell is provided with an insulating…
An apparatus for manufacturing a unit cell including a first and second roller is provided. The first roller is positioned on a first side of the first and second separators. The second roller is positioned on a second side of the first and second separators opposite the first side wherein the…
The present invention relates to a pouch-shaped battery cell including a battery case made of a laminate sheet including an outer coating layer, a metal layer, and an inner adhesive layer, an electrode assembly received in the battery case, and a foam layer applied to an outer surface of an outer…
The present specification relates to an electrode coating apparatus and an electrode coating method that include a turbulent flow generator to uniformize a distribution of a velocity of a coating material transferred from a supply tank to an injection port of a slot die.
A method of manufacturing a shim for a die coater is disclosed herein. In some embodiments, a method of manufacturing a shim for a die coater, where the shim is applied to an electrode slurry die of the die coater and used for discharging an electrode slurry from the die coater, comprising milling…
A lithium secondary battery includes a positive electrode including a lithium manganese-based first positive electrode active material having a spinel structure and a lithium nickel-manganese-cobalt-based second positive active material and a negative electrode including artificial graphite having…
The gas collecting apparatus includes a loading unit configured to sequentially supply a plurality of batteries, one by one, to a first position on a first moving unit, a gripper unit configured to position the battery located at the second position in a gas extraction unit or move the battery…
The method for manufacturing a secondary battery according to various embodiments may comprise the steps of: preparing at least one pouch sheet having a masking tape attached thereto; placing an electrode assembly inside a battery case formed by overlapping the at least one pouch sheet; injecting…
Disclosed is a battery module including: a battery cell stack in which a plurality of battery cells are stacked; a module frame storing the battery cell stack; and a bus bar structure including a plurality of bus bars each electrically connected to the battery cells, and a bus bar frame on which…
A battery module includes a cell stack having a plurality of secondary batteries arranged along one direction; a module housing configured to accommodate the cell stack therein; a thermal conductive adhesive provided in a space between a lower end of the cell stack and a bottom surface of the…