Resumen de: EP4418408A1
The present invention relates to a battery cell in which a cooling sheet is built in a unit cell to directly cool an electrode assembly inside the cell, and a battery module including the same.
Resumen de: EP4418389A1
A main object of the present disclosure is to provide a method for producing a storage module with excellent sealability. The present disclosure achieves the object by providing the method including: a preparing step of preparing a layered body, in which a plurality of electrode sheet that includes : an electrode including a current collector and an active material layer; and a frame body made of a resin arranged along an outer periphery of the electrode, is layered in a first direction; an arranging step of arranging a pair of restraining member of which heat conductivity is 1 W/m·K or less, in a position overlapping with the frame body in the layered body when viewed from the first direction; and a heating step of heating the frame body in the layered body and the pair of restraining member while applying a restraining pressure to the layered body by the pair of restraining member, and thereby welding the frame body adjacent to each other in the first direction to form a seal part.
Resumen de: EP4418354A1
The method comprises forming an electrode current collector layer and an electrode active material layer on one surface or both surfaces of the electrode current collector layer; and transferring lithium metal onto the electrode active material layer,wherein the transferring of lithium metal comprises preparing a transfer laminate in which a base layer, a release layer and a lithium metal are sequentially stacked, laminating the transfer laminate onto the electrode active material layer such that a surface of the lithium metal opposite to a surface in contact with the release layer comes into contact with a surface of the electrode active material layer opposite to a surface in contact with the electrode current collector layer, removing the base layer, and removing the release layer, and wherein the laminating is performed with a pressure of 10 kgf/cm<sup>2</sup> or higher and 150 kgf/cm<sup>2</sup> or lower under a temperature condition of 30°C or lower.
Resumen de: EP4418361A1
The present invention relates to a method for preparing a positive electrode active material capable of implementing a battery excellent in both initial capacity and lifespan properties includes (A) mixing a positive electrode active material precursor containing 80 mol% or greater of nickel (Ni) in all metals with a lithium-containing raw material, and then performing primary firing on the mixture to prepare a primary fired product, and (B) mixing the primary fired product and a nickel compound, and then performing secondary firing on the mixture to prepare a lithium transition metal oxide, wherein the nickel compound is added such that the mol% of nickel contained in the nickel compound is greater than 0.01 mol% to less than 0.15 mol% based on the total number of moles of the metals contained in the positive electrode active material precursor.
Resumen de: EP4418414A1
The present invention relates to a pouch type secondary battery, a secondary battery module including the same, and a pouch therefor, and more particularly, to a pouch type secondary battery with improved insulation performance, a secondary battery module including the same, and a pouch therefor.The present invention may provide a pouch type secondary battery including an electrode assembly, which includes an electrode and a separator, and a pouch in which the electrode assembly is embedded. The pouch type secondary battery is characterized in that the pouch includes: an accommodation part in which the electrode assembly is accommodated; and an edge part disposed along an outer circumference of the accommodation part to define an edge, wherein the edge part includes an insulating layer having an insulating material, and, in the insulating layer, a first insulating layer and a second insulating layer are stacked in sequence from the inside toward the outside.
Resumen de: KR20230052032A
An energy storage device according to the present invention comprises: a first cell group which is spaced apart from each other in a first direction and includes a plurality of first cell arrays connected in series with each other; a second cell group which is disposed on one side of the first cell group and includes at least one second cell array; a plurality of first bus bars which are disposed between the plurality of first cell arrays and connect two adjacent first cell arrays in series with each other; and at least one second bus bar which connects one of the plurality of first cell arrays to the second cell array in series, wherein, in each of the plurality of first cell arrays, a plurality of battery cells connected in parallel with each other are spaced apart from each other in a second direction perpendicular to the first direction, and in the second cell array, a plurality of battery cells connected in parallel with each other are spaced apart from each other in the first direction and the second direction. According to the present invention, it is possible to adjust a size of the battery module to fit a space.
Resumen de: EP4418398A1
The present invention relates to a secondary battery including: an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction; a battery can in which the electrode assembly is accommodated; and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material which includes a core having a single particle or quasi-single particle type and a coating layer formed on the core and including a conductive nano material.
Resumen de: EP4417529A1
The present application provides a transport device for an electrode double packaging device, in which before the electrode roll primarily packaged with the first packaging bag is moved to the secondary packaging location, the first packaging bag is arranged such that it is closely attached to the electrode roll, whereby the jamming of the first packaging bag that can occur in the process of being transported to the second packing location is prevented, so that it is possible to solve the problem that the packaging bag is torn or the peripheral devices are broken, and an electrode double packaging device comprising the same.
Resumen de: EP4418397A1
According to one embodiment of the present disclosure, an electrode assembly with a structure in which a plurality of unit cells are wound by a separation film,wherein the electrode assembly comprises a first unit cell and a second unit cell located at the outermost parts on both sides,wherein the unit cells comprise at least one selected from the group consisting of a cathode and anode, and a separator, the cathode and the anode each have a flat part where the thickness of the active material layer is constant and an inclined part where the thickness of the active material layer decreases toward the protruding direction of tabs, andwherein a first thickness supplement unit and a second thickness supplement unit that supplement for the thickness difference of the flat part and the inclined part are formed between the first unit cell and the outermost separation film facing the first unit cell, and between the second unit cell and the outermost separation film facing the second unit cell, respectively, a manufacturing method thereof, and a secondary battery comprising the same are provided.
Resumen de: EP4418194A1
A monitoring system according to an embodiment of the present disclosure includes a programmable logic controller (PLC) configured to receive specification information of at least one electrode from a first sensor, receive coordinates of a position of the at least one electrode from a second sensor, and generate identification information of each of the at least one electrode on the basis of the specification information and the coordinates of the position, an inspection device configured to inspect the at least one electrode to generate inspection information, and a controller configured to manage the identification information and the inspection information of the at least one electrode by matching the identification information and the inspection information.
Resumen de: EP4418388A1
A button cell (1000, 1002) includes an electrode assembly (100) including a first electrode (110), a second electrode (120), a separator (130) between the first electrode (110) and the second electrode (120), a first electrode tab (140) extending from the first electrode (110), and a second electrode tab (150) extending from the second electrode (120), a case (200) accommodating the electrode assembly (100), and including a through hole (210) exposing an upper central region of the electrode assembly (100) and an opening (220) exposing a lower portion (102) of the electrode assembly (100), a bottom plate (300) coupled to the case (200) to cover the opening (220), and connected to the first electrode tab (140), a terminal plate (400) insulated from and bonded to the case (200) to cover the through hole (210), and connected to the second electrode tab (150), and a bonding layer (500) between the case (200) and the terminal plate (400), and configured to insulate and bond the case (200) and the terminal plate (400).
Resumen de: EP4418436A1
The present disclosure provides an electrode assembly, a battery cell, a battery, and an electric device. The electrode assembly comprises an electrode assembly body and an end protection layer. The electrode assembly body comprises a positive electrode sheet body part, a negative electrode sheet body part, and a separator used for separating the positive electrode sheet body part from the negative electrode sheet body part. The separator protrudes outwards relative to the positive electrode sheet body part and the negative electrode sheet body part from two ends of the electrode assembly body along a first direction. A non-contact surface which is not in contact with the positive electrode sheet body part and the negative electrode sheet body part is provided at two ends of the separator in the first direction. The end protection layer is provided at two ends of the electrode assembly body in the first direction and forms an integrated structure with the electrode assembly body. The end protection layer comprises a separator coating part. The separator coating part covers at least part of the non-contact surface and is directly combined with the non-contact surface to form an integrated structure with the separator.
Resumen de: EP4418352A1
Disclosed is an electrode pre-lithiation method, a pre-lithiated electrode for a lithium secondary battery, and an electrode pre-lithiation apparatus.
Resumen de: EP4418395A1
The present invention relates to a method for manufacturing an electrode assembly, in which after transferring a transfer laminate in which a base layer, a surface protection layer, and a lithium metal layer are sequentially laminated so that the lithium metal layer is brought into contact with a separator, the separator onto which the lithium metal layer is transferred is brought into contact with the surface of the electrode layer, and the surface protection layer is made to face an electrode.
Resumen de: EP4418367A1
The present invention provides: a negative electrode active material having high discharge capacity, high charge output, and excellent discharge output characteristics; and a carbon material therefor.A carbon material for a negative electrode active material according to an embodiment of the present invention provides a carbon material having the total fibrosity index (TFI) of 0.58 to 0.78.
Resumen de: EP4418349A1
Provided are a production apparatus and a production method capable of producing an electrode industrially by an efficient method. A mixture sheet production apparatus for an electrochemical device includes a stacking mechanism that stacks two or more mixture sheets containing a binder resin and a press-fusing mechanism that is provided downstream of the stacking mechanism and that integrates the stacked mixture sheets by applying pressure.
Resumen de: CN118120104A
A battery module having a plurality of battery cells, the plurality of battery cells being arranged in a group, the group being located in two or more module sections. A plurality of monolithic interconnect structures are connected to the battery cells. The interconnect structure is connected to the battery cells such that current flows in a first direction in one of the module sections and in an opposite second direction in the other of the module sections. The interconnect structure is arranged in a single layer.
Resumen de: TW202335346A
Methods and apparatuses for processing lithium batteries with a laser source having a wide process window, high efficiency, and low cost are provided. The laser source is adapted to achieve high average power and a high frequency of picosecond pulses. The laser source can produce a line-shaped beam either in a fixed position or in scanning mode. The system can be operated in a dry room or vacuum environment. The system can include a debris removal mechanism, for example, inert gas flow, to the processing site to remove debris produced during the patterning process.
Resumen de: EP4418378A1
Disclosed is an electrode plate-loading device for secondary batteries. The electrode plate-loading device for secondary batteries comprises a pick-up unit for picking up electrode plates one by one; and first and second loading units for receiving the electrode plate picked up by the pick-up unit and alternately loading the received electrode plate on the align table, in which while the first loading unit performs the operation of loading the received electrode plate on the align table, the second loading unit performs the operation of receiving other electrode plate from the pick-up unit, and while the second loading unit performs the operation of loading other received electrode plate on the align table, the first loading unit performs the operation of receiving another electrode plate from the pick-up unit.
Resumen de: EP4417663A1
This application relates to the field of battery technologies, and in particular, to a binder and a preparation method thereof, and a separator, electrode assembly, battery cell, battery, and electric apparatus containing such binder. The binder includes a capsule and a core material provided in the capsule, where the capsule includes an organic polymer, and the core material includes a plasticizer. The plasticizer is encapsulated as the core material inside the capsule of the organic polymer to improve adhesion performance of the organic polymer, so as to increase adhesion force between a separator and an electrode plate by the binder.
Resumen de: EP4418369A1
This application discloses a binder and a preparation method thereof, a separator, an electrode plate, an electrode assembly, a battery cell, a battery, and an electric apparatus, and relates to the field of battery technologies. The binder includes a polyacrylate copolymer and a lithium-containing compound. As the binder includes a polyacrylate copolymer and a lithium-containing compound, the polymer possesses excellent anti-swelling ability. This also facilitates a good bonding effect, enhances ionic conductivity, and helps control the molecular weight and glass transition temperature of the polymer, and thus improves the bonding performance of the binder. The binder further including a lithium-containing compound, allows the binder to serve as both a binder and a lithium replenisher. This eliminates the need for a separate lithium metal layer or lithium replenishment layer in lithium-ion batteries, improving kinetic performance of the lithium-ion battery, reducing electrochemical impedance, and thus enhancing both the cycling performance and rate performance of the lithium-ion battery.
Resumen de: EP4418360A1
This application provides a cathode material, a method for preparing the same, a positive electrode plate, a battery, and an electrical device. The cathode material includes a ternary cathode bulk and a coating layer disposed on a surface of the ternary cathode bulk. The coating layer includes a component represented by LiXaO(2-b)Fb, wherein X represents at least one of Ni, Co, Mn, Al, B, Y, Zr, Sr, La, Ti, Mg, Zn, Fe, Nb, Ge, W, or Ce; and 0
Resumen de: EP4418428A1
Embodiments of this application provide an end cover assembly, a battery cell, a battery, and an electric device. The end cover assembly includes: an electrode terminal; a first fastener, where the first fastener encloses an accommodating space with openings at two ends in a first direction, at least a portion of the electrode terminal is accommodated in the accommodating space, and a surface of the first fastener facing the accommodating space is provided with a first insulating layer; a second fastener, where the second fastener connects at least a portion of a surface of the electrode terminal facing the first fastener and the first fastener; and an end cover plate, where a first end of the first fastener in the first direction is fixedly connected to the end cover plate to fix the electrode terminal to the end cover plate. The provision of the first insulating layer can avoid a short circuit problem caused by overlapping of the electrode terminal and the first fastener, guaranteeing the safety performance of the battery cell.
Resumen de: AU2022366812A1
A control system for operating a modular arrangement of electrolysis cells under variable input voltage conditions, such as those from renewable energy sources, to optimize operation by reducing under and over potential of cells. Energy supply and electrolyte flow to cells or groups of cells is interrupted or resumed in response to available electrical potential and the optimal electrical potential required by active cells.
Nº publicación: EP4418400A1 21/08/2024
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4418400A1
Disclosed is a lithium secondary battery including: an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction; a battery can in which the electrode assembly is accommodated; and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material, and the positive electrode active material includes single particles or quasi-single particles, having an average particle diameter D<sub>50</sub> of 5 um or less.