Samsung SDI Patente

A battery management system (400) includes a battery pack (300) includes a plurality of battery modules (340), and a plurality of battery-management modules (410) respectively corresponding to the plurality of battery modules (340), wherein each of the plurality of battery modules (340) includes a first set of temperature sensors (11, 13) disposed at a first position (341) of the battery module (340), and a second set of temperature sensors (21, 23) disposed at a second position (343) of the battery module (340) different from the first position (341), and wherein each of the plurality of battery-management modules (410) includes a first analog front end (413a) connected to at least one temperature sensor of the first set of temperature sensors (11, 13), and a second analog front end (413b) connected to at least one temperature sensor of the second set of temperature sensors (21, 23).

The present disclosure refers to a battery module with a cooling system including plastic cooling plates. This allows for an efficient cooling and extinguishing in case of a thermal run-away. Further, the present disclosure relates to a vehicle, in which at least one battery module with a cooling system including plastic cooling plates is employed. Moreover, the present disclosure is related to a method for controlling a battery module with a cooling system including plastic cooling plates.

The present disclosure relates to a positive electrode for a rechargeable lithium battery, a rechargeable lithium battery including the positive electrode, and a method for manufacturing a positive electrode for a rechargeable lithium battery. The positive electrode includes a positive electrode current collector, a first positive electrode active material layer on the positive electrode current collector, and a second positive electrode active material layer on the first positive electrode active material layer. At least one of the first and second positive electrode active material layers includes a first particle and a second particle, wherein an amount of the first particle in the first positive electrode active material layer is in a range of about 55 wt% or more, and an amount of the second particle in the second positive electrode active material layer is in a range of about 55 wt% or more.

The present invention relates to systems (1) and method for temperature prediction for secondary battery. A system (1) may include: a storage device (11, 21, 25) configured to store a plurality of first data sets related to heat transfer of at least one battery; and a control device (13, 24, 27) configured to generate a plurality of second data sets by performing dimensionless conversion on the plurality of first data sets, and train an artificial neural network-based temperature prediction model based on the plurality of second data sets, wherein temperature of a target battery is predicted based on the artificial neural network-based temperature prediction model, and an aspect of the target battery is modified based on the temperature.

A wireless security device and method and a battery pack may be provided. The wireless security device comprises: a plurality of antennas associated with a battery management system, BMS; an angle-of-arrival estimator configured to estimate an angle of arrival from a signal received through at least one antenna among the plurality of antennas and calculate a reliability index for the angle of arrival; a beam forming controller configured to calculate a beam forming weight and control a phase and an amplitude of the signal based on the beam forming weight; a channel estimator configured to estimate a channel state of the signal and calculate a channel change rate based on the channel state; and an anomaly detector configured to perform anomaly detection for the signal based on the channel state, the channel change rate, the angle of arrival, and the beam forming weight.

The present disclosure relates to a composite substrate for a deposition-type negative electrode, a negative electrode including the composite substrate, and a rechargeable lithium battery including the composite substrate. The composite substrate includes an elastic layer, and a metal layer on the elastic layer. The elastic layer includes a polymer foam and a carbon-based conductive material.

The present invention relates to a secondary battery and a method of fabricating the secondary battery. The secondary battery of includes a case, an electrode assembly accommodated within the case, and a first insulating plate located exterior to the electrode assembly, the first insulating plate comprising a core portion and an insulating portion, the insulating portion having a rigidity less than a rigidity of the core portion, the insulating portion comprising an insulating material, the insulating portion surrounding the core portion.

An apparatus for manufacturing a separator for a rechargeable battery, a method of manufacturing a separator for a rechargeable battery, and a rechargeable battery are provided. The separator includes a porous substrate and a coating layer formed on at least one surface of the porous substrate. The apparatus includes a drying unit of a coating film for the coating layer, wherein the drying unit includes a drying oven providing a drying space for the coating film for the coating layer, and an injector located in the drying oven and having an injection plate having a plurality of discharge holes which inject hot air toward the coating film for the coating layer.

Disclosed is an apparatus (200) for measuring thermal conductivity of a secondary battery (10) using a detachable jig. The thermal conductivity measurement apparatus (200) includes: a plurality of independent thermal conduction blocks (210) arranged to correspond to respective surfaces of the secondary battery (10); a heat source (220) attached to at least one of the thermal conduction blocks (210); and an insulation unit (230) configured to enclose peripheries of the thermal conduction blocks (210). The thermal conduction blocks (210) are configured to independently measure thermal conductivities of the respective surfaces of the secondary battery (10).

The invention relates to a secondary battery (100), a secondary battery module (200), and a method for manufacturing the secondary battery module (200). The secondary battery (100) includes an electrode assembly (110) including a positive electrode and a negative electrode, a case (120) configured to accommodate the electrode assembly (110), and a bending portion (130) formed on a bottom portion of the case (120).

Disclosed are an electrolyte storage device and a method of manufacturing the electrolyte storage device, and more particularly, an electrolyte storage device configured such that a fine pattern is formed inside the electrolyte storage device to increase surface hydrophobicity, thereby preventing an electrolyte from adhering to the electrolyte storage device, and a method of manufacturing the electrolyte storage device.

The present disclosure refers to a battery system (10) including a battery housing (11) including a top cover (20), a plurality of battery cells (12) accommodated within the battery housing (11), wherein each of the battery cells (12) includes a venting side (13) with a venting exit (14) for allowing a venting gas stream (V) to exit the battery cells (12) in case of a thermal runaway (TR), the venting sides (13) facing the top cover (20), at least one pipe (30, 30') filled with a liquid and extending across the battery cells (12) at their venting sides (13), wherein the at least one pipe (30, 30') is configured to rupture and expel the liquid when exerted to the venting gas stream (V), a plurality of cell spacers (40) alternatingly stacked with the battery cells (12), each cell spacer (40) being adapted to absorb the liquid expelled by the at least one pipe (30, 30').

The present disclosure refers to battery system (100), including a battery housing (11) including a cover element (20), a plurality of battery cells (12) accommodated within the battery housing (11), wherein each of the battery cells (12) includes a venting side (13) with a venting exit (14) for allowing a venting gas stream (V) to exit the battery cells (12) in case of a thermal runaway, the venting sides (13) facing the cover element (20), an extinguishing agent supply (40), a first supply pipe (30) connected to the extinguishing agent supply (40) and extending laterally along the venting exits (14) of the battery cells (12) at a first side, a first outlet pipe (32) for each of the battery cells (12), and the first outlet pipe (32) connected to the first supply pipe (30) and extending towards the venting exit (14) of the associated battery cell (12) such that a free end (34) of the first outlet pipe (32) is located laterally of the venting exit (14) and directed at the venting exit (14), wherein the first outlet pipe (32) is configured to expel an extinguishing agent, supplied by the extinguishing agent supply (40) and the first supply pipe (30), via its free end (34) onto the venting exit (14) when exerted to the venting gas stream (V).

A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, the case including an opening, a cap plate sealing the opening of the case, a pair of electrode terminals coupled to the cap plate and electrically connected to the electrode assembly, and a protective member between the electrode assembly and the cap plate.

A secondary battery includes a battery can that accommodates an electrode assembly, a cap assembly connected to the battery can, a vent portion in the cap assembly, the vent portion being configured to open when an internal pressure of the battery can reaches a predetermined threshold, and a diffusion prevention unit on the vent portion, the diffusion prevention unit being expandable in response to pressure of a gas when the gas and flames are released through the vent portion, and the diffusion prevention unit being configured to block the gas and flames from spreading to an outside.

Disclosed are a positive electrode and a rechargeable lithium battery. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a first positive electrode active material layer adjacent to the positive electrode current collector, and a second positive electrode active material layer facing the positive electrode current collector with the first positive electrode active material layer interposed therebetween. The first positive electrode active material layer includes a first positive electrode active material and a first irreversible positive electrode additive. The second positive electrode active material layer includes a second positive electrode active material and a second irreversible positive electrode additive. An average particle diameter (D<50>) of the first irreversible positive electrode additive is larger than an average particle diameter (D<50>) of the second irreversible positive electrode additive.

A secondary battery, including a case, an electrode assembly in the case, a cap plate coupled to the case, the cap plate facing the electrode assembly, a terminal protruding outward from the cap plate, the terminal being connected to the electrode assembly, an insulating member between the cap plate and the terminal, and a first fastening member extending from the insulating member, the first fastening member being coupled to the terminal.

A secondary battery and a method of manufacturing a secondary battery are disclosed. The secondary battery includes: an electrode assembly including a plurality of electrodes that are stacked, the plurality of electrodes each including: a mixture portion having a first width; and an uncoated portion which has a second width equal to the first width and extends from the mixture portion, and a plurality of the uncoated portions are stacked to form an uncoated portion bundle; and a current collecting member which covers at least two surfaces of the uncoated portion bundle and is connected to the uncoated portion bundle.

A secondary battery, including a case, an electrode assembly accommodated in the case, a terminal connected to the electrode assembly, a cap plate facing the electrode assembly, and an insulating member between the cap plate and the electrode assembly, the insulating member including an accommodating groove in which the terminal is accommodated.

A secondary battery (2) includes a case (100), an electrode assembly (200) accommodated in the case (100), a cap plate (300) coupled to the case (100) and including an inner surface (301) facing the electrode assembly (200) and an outer surface (302) opposite to the inner surface (301), a terminal (400) protruding outward from the cap plate (300) and connected to the electrode assembly (200), a gasket (500) between the cap plate (300) and the terminal (400), and an outer groove (600) that is concave from the outer surface (302) toward the inner surface (301) and surrounds the gasket (500).

A composite positive electrode active material for a rechargeable lithium battery includes a composite positive electrode active material including a first positive electrode active material in a form of single particles and including a lithium nickel-based composite oxide and a second positive electrode active material in a form of secondary particles in which primary particles are agglomerated and including a lithium nickel-based composite oxide. The first positive electrode active material is included in an amount of more than about 50 wt% and less than about 100 wt% based on 100 wt% of the composite positive electrode active material. The second positive electrode active material is included in an amount of greater than 0 wt% and less than about 50 wt% based on 100 wt% of the composite positive electrode active material.

A rechargeable battery and a battery pack including the same are disclosed. A rechargeable battery includes a case, an electrode assembly accommodated in the case, a cap plate facing the electrode assembly, and a first vent member on the cap plate, and the first vent member is coupled to the cap plate in a snap-fit manner.

A secondary battery includes a cell case including an electrode assembly, a vent hole in the cell case, and a safety vent coupled to the vent hole, the safety vent configured to rupture when internal pressure of the cell case is higher than a reference pressure, wherein the vent hole is in a bottom portion of the cell case, and the safety vent does not contact a bottom plate of the cell case when swelling occurs due to an increase in the internal pressure of the cell case.

A secondary battery includes: an electrode assembly including: a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a first horizontal portion at one end of the electrode assembly; and a second horizontal portion having a step difference relative to the first horizontal portion; a can accommodating the electrode assembly; and a first electrode tab connected to the first electrode. The second electrode is coupled to the can.

A battery includes an electrode assembly, a case accommodating the electrode assembly, the case including a vent hole, and a vent formed of a polymer material, the vent includinga body portion covering the vent hole, and a flange portion extending from the body portion toward a surface of the case, the flange portion being coupled to the case and including at least one protrusion protruding in a thickness direction of a portion of the case coupled to the flange portion.

A welding device (1000) includes an anvil (1100), and a welding horn (1200) configured to apply ultrasound to weld an electrode plate (100a), a first substrate tab (120), and a second substrate tab (130) together, while pressing the electrode plate (100a), the first substrate tab (120), and the second substrate tab (130) on the anvil (1100). The welding horn (1200) includes a disk-shaped welding head (1300), and a body portion (1400) connected to a central axis of the welding head (1300), wherein the welding head (1300) is rotatable. The disk-shaped welding head (1300) includes a first pressing portion (1310) configured to press a first region located between the electrode plate (100a) and the first substrate tab (120), and a second region located between the electrode plate (100a) and the second substrate tab (130) between the anvil (1100) and the welding horn (1200), and a second pressing portion (1320) configured to press part of a third region located between the first substrate tab (120) and the second substrate tab (130).

The present disclosure relates to a secondary battery testing apparatus including a case, a drum rotatably disposed in the case, a cable configured to be wound around the drum and having a detection terminal extending outward from the case, an adjustment member connected to the drum and configured to adjust rotation of the drum, and a measurement member connected to the cable and configured to measure a detection signal transmitted through the cable.

A secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate wound together. The first electrode plate of the electrode assembly includes a long uncoated portion and a short uncoated portion having different lengths in a width direction of the first electrode plate. Each of the long uncoated portion and the short uncoated portion of the first electrode plate has a plurality of cut pieces cut in the width direction. Furthermore, a method of manufacturing a secondary battery is comprised.

1. A secondary battery, comprising: a case; an electrode assembly accommodated in the case; a cap plate (300) welded to the case, the cap plate having a welded portion (300a) and a pair of terminals (400), each terminal having a polarity different from the other terminal; and a gasket (500) between the cap plate and each terminal, wherein the pair of terminals includes a first terminal portion (410) connected to the electrode assembly and a second terminal portion (420) extending from the first terminal portion, the second terminal portion being between the welded portion and the first terminal portion.

A battery (2), including a case (100), an electrode assembly (200) inside the case (100), the electrode assembly (200) including an electrode (210, 220), a tab member (301, 302) connected to the electrode (210, 220), the tab member (301, 302) extending from the electrode assembly (200), a cap assembly (400) facing the electrode assembly (200), the cap assembly (400) having a terminal (420, 430), and a current collector assembly (500, 600) between the electrode assembly (200) and the cap assembly (400), wherein the current collector assembly (500, 600) includes a current collecting plate (520, 620) coupled to the tab member (301, 302) and a flexible current collector (510, 610, 710) electrically connecting the current collecting plate (520, 620) and the terminal (420, 430).

An electrode assembly and a battery including the same are disclosed. An electrode assembly is formed by winding a laminate having a separator interposed between a positive electrode plate and a negative electrode plate a plurality of times to have a winding center, wherein a cutting shape at a winding end portion of the separator has a shape in which an upper end is removed.

A rechargeable battery includes: an electrode assembly; a can accommodating the electrode assembly in an internal space and including an opening at one side; and a cover portion coupled to the can at the opening, wherein the cover portion comprises a vent comprising metal, wherein the vent comprises a first region and a second region surrounding the first region, wherein the first region includes: a first portion extending in a first direction; and a second portion extending in a second direction intersecting the first direction and crossing the first portion at an intersection area, and wherein an average grain size of a microstructure of the metal in the first region is larger than an average grain size of a microstructure of the metal in the second region.

An apparatus for cutting a secondary battery can includes a support fixedly supporting a molded battery can product having a removal target portion, a cutter having an incision blade inserted into the molded battery can product, the cutter being configured to incise a portion of the removal target portion, and a cutting blade configured to continuously cut from the portion of the removal target portion incised by the incision blade, and a cutter driver that moves the cutter and causes the incision blade to move along a linear path perpendicular to an inner wall of the molded battery can product, resulting in a cutting start incision portion on the inner wall, the cutter driver causing the cutting blade to cut from the cutting start incision portion.

A rechargeable battery (200) includes an electrode assembly (150), and a cap plate (120) defining a terminal hole, a pair of terminals (130, 140) connected with the electrode assembly (150), one of the terminals (130, 140) including a rivet terminal (50) in the terminal hole with a seal gasket (40) between the rivet terminal (50) and the cap plate (120), a terminal plate (60) coupled to the rivet terminal (50), surrounding a part of the rivet terminal (50) at an exterior of the cap plate (120), and having an air layer (80) therein, and an insulator (70) between the cap plate (120) and the terminal plate (60), and overlapping the air layer (80) in a thickness direction of the cap plate (120).

An electrode assembly, including a plurality of first electrode plates, a plurality of second electrode plates spaced apart from the plurality of first electrode plates, separators between the plurality of first electrode plates and the plurality of second electrode plates, and first electrode tabs connected to the plurality of first electrode plates, wherein the first electrode tabs include a plurality of first inner electrode tabs connected to some of the plurality of first electrode plates and a plurality of first outer electrode tabs connected to others of the plurality of first electrode plates, the plurality of first inner electrode tabs and the plurality of first outer electrode tabs being spaced apart from the plurality of first electrode plates.

A rechargeable battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator, a case accommodating the electrode assembly therein, a linear welding portion extending across a first surface among a plurality of surfaces of the case along a first direction, the linear welding portion having two sides, and a protruding extension on at least one of the two sides of the linear welding portion along a second direction crossing the first direction, the protruding extension protruding from the first surface and extending along the first direction.

The present disclosure refers to a disassembling facility (1000) for disassembling HV-battery (200) after a thermal damage event. The facility (1000) includes at least one work space (10) accessible for a user. The contamination tunnel (20) is separated from the at least one work space (10) by at least one tunnel wall (30) and including a tunnel inlet (23) for entering of the HV-battery (200) and a tunnel outlet (24) for discharging the disassembled HV-battery (200). The facility (1000) a transparent member (32) at the at least one tunnel wall (30). The plurality of operating gloves (40) sealed to the at least one tunnel wall (30) so that the user can manually operate inside the contamination tunnel (20) through use of the operating gloves (40) from the at least on work space (10). A transport member (50) is provided inside the contamination tunnel (20) which supports the HV-battery (200) and is controllable to move the HV-battery (200) at least partially along the contamination tunnel (20).

An electrode assembly according to some embodiments may include a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The separator may include a protrusion protruding from the first electrode and the second electrode, and a protective layer may be disposed on the protrusion.

Provided is a battery module. The battery module includes a plurality of battery cells, a housing accommodating the plurality of battery cells, and a vent part arranged in a portion of the housing, wherein the vent part includes an outer hopper arranged through the housing, an inner surface of the outer hopper defines a vent hole penetrating the housing, and a diameter of the vent hole increases toward outside of the battery module.

Disclosed are a heating sheet of a battery cell for a thermal propagation evaluation and a thermal propagation evaluation apparatus including the same. A thermal propagation evaluation apparatus (100) according to embodiments includes a power source (130), a housing (110) including a cell occupancy space, in which a plurality of battery cells (C1-C5) including a target battery cell are disposed in parallel, and a heating sheet connected to the power source and configured to heat the target battery cell (120) in the housing, wherein the heating sheet includes a cover in a sheet shape having an area corresponding to one surface of the battery cell and a predetermined thickness and a heating member including a heating coil pattern disposed in one region inside the cover and electrically connected to the external power source, and an area of a region in which the heating coil pattern is disposed may range from 5 to 20% of an area of the cover.