Samsung SDI Patente

The present disclosure relates to a secondary battery, a device for manufacturing a secondary battery, and a method of manufacturing a secondary battery. The secondary battery includes an electrode assembly and a case including a body portion accommodating the electrode assembly, a cover covering an opening of the body portion, and a sealing portion if formed where outer surfaces of the body portion and the cover contact each other to thereby seal the electrode assembly in the case. The sealing portion includes a top sealing portion extending in a first direction from an upper surface of the case; side sealing portions each of which extend from a side surface of the case in (i) a second direction that intersects the first direction or (ii) a direction opposite to the second direction. A corner sealing portion folded in the first direction when the top sealing portion and the side sealing portions are folded in a third direction intersecting the first direction and the second direction.

A method and apparatus for compressing stacked cells (SC) are described. The method of compressing stacked cells includes a relative position correction operation of correcting a relative position of a workpiece carrier (310) that has entered, a high-speed movement operation of moving a compression block (350) at a first speed after stacked cells are seated inside the workpiece carrier, a medium-speed movement operation of moving the compression block at a second speed lower than the first speed to a start point of compression, and a low-speed movement operation of moving the compression block at a third speed lower than the second speed to a target compression distance.

An electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode are disclosed. The electrode may include a current collector and an electrode active material layer on the current collector, wherein the electrode active material layer includes an electrode active material; and a polymer binder including a first repeating unit represented by Chemical Formula 1 and a second repeating unit represented by Chemical Formula 2.

An electrode includes: an insulating layer having a through hole; a first metal layer on one surface of the insulating layer; a second metal layer on another surface of the insulating layer; a first active material layer on the first metal layer; a second active material layer on the second metal layer; and a connecting metal layer in the through hole, and electrically connecting the first metal layer to the second metal layer.

An electrode for a battery according to an example embodiment includes a substrate, a first active material layer formed on a first surface of the substrate and having first holes, and a second active material layer formed on a second surface of the substrate and having second holes, wherein the density of the first holes is different from the density of the second holes.

Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the positive electrode. The positive electrode includes a positive electrode active material layer, and the positive electrode active material layer includes a positive electrode active material, a conductive material, an acrylic binder, and a polyimide binder. The acrylic binder is a copolymer containing a styrene unit and an acrylate unit.

The present disclosure relates to a battery pack (100) and a communication method thereof, and a technical problem to be solved is to propose a mechanism that enables a master battery management system (BMS) (30) and a plurality of slave BMSs (200) to perform surface plasmon resonance (SPR)-based optical communication. To this end, the present disclosure is directed to providing a configuration in which a nano-structured surface is formed on an inner side of an upper cover of a pack case (110), and the nano-structured surface allows a slave BMS (200) and a master BMS (30) to perform SPR-based optical communication.

A battery module includes: a plurality of battery cells each comprising a terminal part on one side of the corresponding battery cell, and a vent at an opposite side to the one side; and a cooling plate comprising a cooling passage extending in a direction in which the plurality of battery cells are located, wherein the cooling plate comprises a vent gas passage arranged to correspond to the vents of the plurality of battery cells.

A secondary battery module includes a battery cell including terminals and a vent, a vent potting plate including a base plate configured to cover at least the vent of the battery cell and a potting material accommodation portion provided on the base plate and located at a position corresponding to a position of the vent of the battery cell.

An all-solid rechargeable battery includes a first electrode powder layer, a solid electrolyte powder layer disposed on the first electrode powder layer, and a second electrode powder layer disposed on the solid electrolyte powder layer.

The present disclosure relates to a separator for a rechargeable battery, and a rechargeable battery including the separator. The separator includes a porous substrate and a coating layer located on at least one surface of the porous substrate. The coating layer includes a crosslinked product of a binder and a crosslinking agent, and a filler. The binder includes a (meth)acrylic binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof. The crosslinking agent includes an aziridine-based crosslinking agent. The filler includes a mixture of a first filler and a second filler, the first filler is an inorganic filler, and the second filler is a fibrous filler.

The present disclosure relates to a tape attachment device for a secondary battery and a tape attachment method using the same and provides a tape attachment device for a secondary battery which includes a first attachment roller disposed in a direction substantially parallel to a first direction and a second attachment roller disposed in a direction substantially parallel to a second direction intersecting the first direction, wherein the first attachment roller and the second attachment roller bring tape into close contact with a secondary battery while moving in a direction substantially parallel to a third direction intersecting the first direction and the second direction.

The present disclosure relates to a battery pack and a battery charging method using the same and is directed to providing a mechanism capable of effectively charging a battery quickly. To this end, the present disclosure provides a plurality of charging switches, each of which is connected to one of a battery cells, a first switch connected to a first battery cell charged by a charge pulse, a second switch which connects a second battery cell to the first battery cell, and a charging control device which charges the first battery cell and the second battery cell by controlling at least one of the plurality of charging switches, the first switch, and the second switch to be turned on or off according to an on/off-time of the charge pulse when the plurality of battery cells are charged through pulse charging.

Provided are an electrode binder for a rechargeable lithium battery, an electrode manufactured using the electrode binder, and a rechargeable lithium battery. The electrode binder for a rechargeable lithium battery includes a metal salt of hydrophilic amino acid.

Electrodes and rechargeable lithium batteries including the electrodes are disclosed. The electrode may include an electrode current collector and a multi-layered active material layer thereon. The multi-layered active material layer may include first to third active material layers sequentially stacked on the electrode current collector. The first active material layer may include a first active material. The second active material layer may include a second active material and a first composite conductive material. The third active material layer may include a third active material and a second composite conductive material. The first composite conductive material may include a first carbon nanostructure and a first polymer. The second composite conductive material may include a second carbon nanostructure and a second polymer. The first polymer and the second polymer may be different from each other. The first polymer may have higher ionic conductivity than the second polymer.

A secondary battery and a battery module are disclosed. A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a terminal over the case and electrically connected to the electrode assembly, a connection member over the terminal and connected to the terminal, and a safety member between the terminal and the connection member and configured to separate the terminal from the connection member at a set temperature or higher.

Disclosed are an insulation member, a battery module, and a method of manufacturing a battery module. The insulation member may include an adiabatic material formed along the outskirts of battery cells and having a space formed therein and a potting liquid filled into the space within the adiabatic material.

A dry electrode fabricating apparatus and method are disclosed. A dry electrode fabricating apparatus includes a chute including an inner space in which an electrode powder is accommodated, an inlet port through which the electrode powder is input to the inner space, and an outlet port through which the electrode powder is discharged from the inner space, a pair of calender rolls through which the electrode powder discharged through the outlet port passes and by which the electrode powder is compressed into an electrode film, a temperature sensor to measure a temperature of the chute, a chute moving part, and a controller configured to control the chute moving part such that the chute-calender roll distance becomes greater than a reference distance if the temperature of the chute is higher than or equal to a reference temperature.

The present disclosure relates to a battery pack and a wireless communication apparatus, and a wireless communication method thereof. The battery pack comprises a pack case; a plurality of battery modules mounted inside the pack case; a plurality of slave battery management systems (BMSs) that are mounted on each battery module and collect battery status information of each battery module; and a master BMS configured to receive the battery status information from each of the plurality of slave BMSs through radio frequency (RF) communication and integrate and manage the plurality of slave BMSs, wherein RF communication is performed between the plurality of slave BMSs and the master BMS through a repeater based on an active phased array antenna system.

The present disclosure refers to a battery module (100) with a plurality of battery cells (10) arranged in a stacking direction (D) and a plurality of cooling plates (20) arranged between battery cells (10) in the stacking direction (D). A plurality of telescopic cooling connectors (30) is provided each interconnected with an adjacent telescopic cooling connector (30) along at least one side of the battery cells (10) in the stacking direction (D) to form a fluid-connected cooling path (32) in the stacking direction (D) and which are respectively connected to a corresponding cooling plate (20) to be fluid-connected with the cooling plate (20). Each telescopic cooling connector (30) includes a first hollow connection portion (36, 36', 36") extending in a stacking direction (D) or a direction opposite to the stacking direction, and a second hollow connection portion (38, 38', 38") extending in a direction opposite to the first hollow connection portion (36, 36', 36"), wherein each interconnection between adjacent telescopic cooling connectors (30) includes a first hollow connection portion (36, 36', 36") of a telescopic cooling connector (30) fitted into the second hollow connection portion (38, 38', 38") of the adjacent telescopic cooling connector (30), wherein the telescopic cooling connector (30) includes a connection opening (34) extending in a height direction (H) of the battery module (100), and wherein an end portion (22) of the respective cooling plate (40) passes through the connection opening (34) to be connected with the telescopic cooling connector (30).

Disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the negative electrode. The negative electrode includes a current collector and a negative electrode active material layer on the current collector. The negative electrode active material layer includes a first region, a second region, and an edge region, the first region is in contact with the edge region, and the second region is not in contact with the edge region, the second region includes a crystalline carbon negative electrode active material. The edge region includes a first layer in contact with the current collector and including a silicon-carbon composite negative electrode active material and a second layer disposed on the first layer and including a crystalline carbon negative electrode active material.

The present disclosure refers to a battery system, an electric vehicle including the battery system and a cooling plate (12) for the battery system.The battery system (100) includes a plurality of battery cells (10) stacked along a stacking direction (S) and at least one cooling plate (12) arranged between two adjacent battery cells (10) of the plurality battery cells (10) along the stacking direction (S). The cooling plate (12) includes a chamber (14) for cooling liquid with a deformation structure (16) configured to transfer compressive forces along the stacking direction (S) between opposite sides of the cooling plate (12) facing the adjacent battery cells (10). The deformation structure (16) is configured to equalize compressive forces caused by length deviations of the plurality of stacked battery cells (10) along the stacking direction (S) through deformation of at least a portion of the deformation structure (16) at a substantially constant force over a given displacement.

A positive electrode slurry composition, a positive electrode, a manufacturing method thereof, and a rechargeable lithium battery. The positive electrode slurry composition includes a positive electrode active material including secondary particles of a lithium nickel-based composite oxide, carbon nanotubes, and a cellulose-based additive.

An electrode assembly includes an electrode plate including a coated portion where an active material is coated on sides of a composite substrate and an uncoated portion where the active material is not provided on the composite substrate. A conductor is coupled to the uncoated portion, and an insulating layer covers at least a part of each of the uncoated portion, the coated portion, and the conductor. The uncoated portion is coupled to a first side of the conductor, and the insulating layer is disposed on a second side of the conductor that is opposite to the first side.

Provided are a negative electrode for a rechargeable lithium battery, a rechargeable lithium battery including the same, and a method of manufacturing a negative electrode. A negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes a first negative electrode active material layer and a second negative electrode active material layer, which are stacked on the negative electrode current collector, at least one of the first and second negative electrode active material layers has a DD (degree of divergence) value, a DD value of the second negative electrode active material layer is about 60% to about 120% of a DD value of the first negative electrode active material layer, and at least one of the first and second negative electrode active material layers has a DD value of 19 or more.

An electrode sheet manufacturing apparatus (1) comprising: a coating part (100) configured to apply electrode slurry onto a substrate (10) to form a coating layer; a spraying part (200) configured to spray compression gas onto the coating layer; a drying part (300) configured to supply a heat source onto the substrate (10) to dry the coating layer; a measurement part (400) arranged spaced apart from the substrate (10) and configured to measure a thickness of an edge portion forming an edge of the coating layer; and a control part electrically connected to the measurement part (400) and configured to detect a change in thickness of the edge portion based on receipt of a thickness value of the edge portion from the measurement part.

A viscosity control apparatus for an electrode slurry, includes a mixing unit (10) configured to stir an electrode slurry, a dispersion unit (20) into which the electrode slurry is introduced, and which is configured to disperse a material contained in the electrode slurry and re-supply a dispersed slurry to the mixing unit, a first circulation line (11) going from the mixing unit to the dispersion unit and, via a separate path, from the dispersion unit back to the mixing unit, and configured to connect the mixing unit and the dispersion unit to circulate the electrode slurry, a viscosity measurement unit (30) connected to the first circulation line so that the electrode slurry having passed through the dispersion unit is introduced and configured to measure a viscosity of the electrode slurry, and a control unit (40) configured to receive a signal of the viscosity measurement unit, and control the dispersion unit to re-operate to re-disperse the electrode slurry and supply the redispersed electrode slurry to the mixing unit when the viscosity of the electrode slurry is not a value in a predetermined range.

Provided are an insulating composition for a rechargeable lithium battery, an electrode manufactured using the insulating composition, and a rechargeable lithium battery. The insulating composition for the rechargeable lithium battery includes a binder including a crosslinked polymer of a polymer and a monomer, inorganic particles, and a solvent. The polymer includes an amine group, and the monomer includes two or more halide groups in one molecule.

Embodiments of the present disclosure relates to a protection circuit module, and the technical problem to be solved is to provide a protection circuit module capable of dissipating heat. To this end, embodiments of the present disclosure provides a protection circuit module including a substrate, a circuit pattern disposed on the substrate, and an insulating layer provided on the substrate while covering the circuit pattern, wherein the insulating layer includes one or more holes formed on at least a portion of the circuit pattern.

Embodiments of the present disclosure relates to a protection circuit module, and the technical problem to be solved is to provide a protection circuit module capable of dissipating heat. To this end, embodiments of the present disclosure provides a protection circuit module including a substrate, a circuit pattern disposed on the substrate, and an insulating layer provided on the substrate while covering the circuit pattern, wherein the insulating layer includes an opening formed on a side of at least a portion of the circuit pattern.

Provided are an insulating composition for a rechargeable lithium battery, an electrode manufactured using the insulating composition, and a rechargeable lithium battery. The insulating composition for the rechargeable lithium battery includes a binder including a crosslinked polymer of a first polymer and a second polymer, inorganic particles, and a solvent. The first polymer includes a first main chain and a first pendant group, and the second polymer includes an amine group.

A roll press apparatus for manufacturing the electrode plate includes a frame portion, a base roller rotatably installed on the frame portion and configured to press a first surface of an electrode plate; a plurality of pressing rollers slidably arranged on the frame portion in a direction of the base roller; a first driver configured to provide a rotational driving force to the base roller; a second driver arranged on the frame portion and configured to provide a sliding driving force to each of the plurality of pressing rollers; a plurality of pressure sensors arranged on the second driver to sense a pressing force applied by respective pressing rollers of the plurality of pressing rollers; and a controller configured to control the second driver to increase the sliding driving force applied to any one of the plurality of pressing rollers if a smaller pressure is sensed relative to another pressure.

A cover for an energy storage apparatus includes: a rotation shaft arranged on one side of an open upper surface of an apparatus main body; and a cover main body having one end portion fixed to the rotation shaft and configured to open and close the open upper surface of the apparatus main body by being wound or unwound around the rotation shaft at the one end portion thereof.

A method of analyzing a slurry, which is performed by a processor of a slurry pressurizing and filtering apparatus, may include collecting a cumulative discharge amount of a slurry of an active material for a secondary battery at preset time intervals, calculating a discharge amount per hour of the slurry by using a cumulative discharge amount of the slurry at a previous time and a cumulative discharge amount of the slurry at a current time, classifying state information of the slurry based on the cumulative discharge amount of the slurry and the discharge amount per hour of the slurry, and deriving a discharge rate, which represents flow characteristics and a dispersion state of the slurry, as an evaluation characteristic value based on a result of classifying the state information of the slurry.

An apparatus for manufacturing an electrode plate for a secondary battery, the apparatus including a welding unit contacting an electrode plate, the electrode plate including a stack of a plurality of substrates, the welding unit being configured to weld the plurality of substrates in a thickness direction, resulting in a welded surface, a coating unit configured to apply an insulating material onto the welded surface of the electrode plate, resulting in a coated insulating material, a welded-surface imaging unit outside the electrode plate, the welded-surface imaging unit being configured to capture an image of the welded surface, and a control unit electrically connected to the coating unit and the welded-surface imaging unit, the control unit being configured to receive, from the welded-surface imaging unit, information about the welded surface and move the coating unit above the electrode plate.

An apparatus for manufacturing a secondary battery and an electrode plate cutting unit are disclosed.. The apparatus includes a transfer part configured to move an electrode plate, a winding part configured to wind the electrode plate transferred by the transfer part, an ascending/descending upper cutter which is installed above the transport path to allow a mounting direction to be changed and on which is formed an upper cutter blade, a stripper positioned below the electrode plate and configured to support the electrode plate when the electrode plate is cut, a fixed body configured to elastically support the stripper, and a lower cutter which is supported on a side portion of the fixed body and on which a lower cutter blade is formed, wherein one of the upper cutter blade and the lower cutter blade includes two or more blades.

A slot die for manufacturing a secondary battery electrode includes an upper die, a lower die below the upper die, a shim plate between the upper die and the lower die, and a supplier in the lower die and configured to supply a slurry to a space defined in the shim plate.

The present disclosure is directed to suppressing movement of an electrode plate when cutting an electrode plate to prevent deintercalation of an active material, and not causing damage or deformation of a front end surface through a uniform surface contact between a cutter and a tilting stripper. The electrode plate cutting unit includes a lower cutting unit having a lower cutter installed below a transport path of an electrode plate moving along the transport path and having an inclined blade and a support stripper positioned at a side portion of the lower cutter to support the electrode plate upwardly, and an upper cutting unit having an upper cutter provided to move upwardly and downwardly above the transport path to cut the electrode plate through cross motion with the lower cutter when moving downwardly and a tilting stripper installed at a side portion of the upper cutter and tilted while supporting the electrode plate toward the lower cutter.

Disclosed are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery includes a positive electrode current collector, a first positive electrode active material layer on the positive electrode current collector and including a first positive electrode active material including a lithium iron phosphate-based compound, and a second positive electrode active material layer on the first positive electrode active material layer and that includes a second positive electrode active material including a lithium nickel-based composite oxide and a third positive electrode active material including a lithium manganese-based oxide.

A battery management system (300) includes an impedance measurement unit (310) configured to measure at least one of an impedance of a battery (400) for each charging cycle or an impedance of the battery (400) for each discharging cycle, and a battery control unit (330) configured to perform at least one of calculating an amount of change in a charging impedance by comparing an impedance of a current charging cycle with an impedance of a previous charging cycle, and setting a next discharging completion voltage of the battery (400) based on the amount of change in the charging impedance, or calculating an amount of change in a discharging impedance by comparing an impedance of a current discharging cycle with an impedance of a previous discharging cycle, and setting a next charging completion voltage of the battery (400) based on the amount of change in the discharging impedance.