Samsung SDI Patente

Disclosed are positive electrodes (10) and rechargeable lithium batteries (100). The positive electrode includes a current collector (COL1), a first active material layer (ALT1) on the current collector, and a second active material layer (ALT2) on the first active material layer. The first active material layer includes a first positive electrode active material (CAM1) and a first lithium-based additive (LAD1). The second active material layer includes a second positive electrode active material (CAM2) and a second lithium-based additive (LAD2). An amount of the second lithium-based additive in the second active material layer is greater than the amount of the first lithium-based additive in the first active material layer.

A tape for battery attachment includes: an adhesive portion on one surface of the tape, the adhesive portion including: a weak adhesive portion; a strong adhesive portion having a stronger adhesive strength than that of the weak adhesive portion; and a perforation line perforated along an outer periphery of the strong adhesive portion.

A negative electrode active material, a negative electrode for a rechargeable lithium battery including the same, and a method for preparing the same are provided. A negative electrode active material includes a carbon-based material, and a surface modifier on a surface of the carbon-based material, where the surface modifier includes a polar functional group, and the polar functional group contains at least one of a carboxyl group, an amine group, a thiol group, and/or a combination thereof.

A protection circuit module includes: a protection circuit board electrically connected to an electrode tab protruding from one surface of a bare cell, and including a molding member covering one surface of the protection circuit board; a printed circuit board (PCB) on another surface of the protection circuit board opposite to the one surface; and a first spacer coupled with one end of the protection circuit board with respect to a longitudinal direction of the protection circuit board. The protection circuit board includes a first coupling portion coupled with the first spacer, and the first spacer includes a second coupling portion corresponding to the first coupling portion.

A battery attachment tape includes: an adhesive portion including an adhesive surface attached to a surface of a battery cell; and a gripping portion extending from one side of the adhesive portion. The adhesive portion includes: a first adhesive portion overlapping with the gripping portion in a first direction; and a second adhesive portion on opposite sides of the first adhesive portion. Adhesive strengths of the first adhesive portion and the second adhesive portion are different from each other.

An energy storage system includes a housing including an internal space accommodating one or more battery modules, and at least one open side, a first door and a second door arranged adjacent to each other at the at least one open side of the housing, a connection unit having a first end connected to the first door and a second end connected to the second door, and a sealing unit fastened to the connection unit and arranged between the first door and the second door.

An energy storage device (100) including one or more battery modules including a plurality of battery cells (260); a case (200) accommodating the battery module; a fire extinguishing pipe (300) disposed in the case, having one side open to accommodate a fire extinguishing agent (310) therein, and configured to melt at a certain temperature or higher to spray the fire extinguishing agent; and a connection portion (400) coupled to the case, having one end connected to the opened one side of the fire extinguishing pipe, and having the other end connected to a supply flow path (10) supplying the fire extinguishing agent.

An energy storage system includes: a rack including horizontal frames arranged at intervals in a vertical direction and having a length in a horizontal direction, vertical frames arranged at intervals in the horizontal direction, having a length in the vertical direction, and coupled to the horizontal frames, and guide rails coupled to inner sides of the horizontal frames and extending in an inward direction of the rack; a battery module mounted on the guide rails; and a fire extinguishing sheet coupled to the horizontal frames. The fire extinguishing sheet is configured to release a fire extinguishing agent to the battery module at a reference temperature.

An electrode assembly inspection device includes a communication unit configured to collect process data, and a processor configured to modify at least one related factor based on the process data and to model a prediction model that predicts a quality of an electrode assembly based on the modified at least one related factor.

A battery tape is disclosed. The battery tape includes a first member having a position relative to a first surface of a battery and a second member extending from a side of the first member, surrounding a side surface of the battery, and bonded to a second surface of the battery opposite to the first surface. The first member may be configured to shrink and contact the first surface of the battery based on exposing the first member to first heat, and the second member may be configured to shrink and contact the side surface of the battery based on exposing the second member to second heat.

A pressure drop responsive gas tank includes: a tank main body inside a container, filled with a non-combustible gas, and having a discharge passage configured to discharge the non-combustible gas; and an opening device mounted on the discharge passage and configured to open the discharge passage when an internal pressure of the container is lower than an atmospheric pressure so that the non-combustible gas is discharged from the tank main body.

Provided is an energy storage system including a plurality of battery modules, a cooler configured to supply a cooling fluid to the plurality of battery modules, and a fire-extinguishing tank accommodating a fire-extinguishing agent capable of being supplied to the plurality of battery modules, wherein the plurality of battery modules each include a plurality of cell units which each include a plurality of battery cells arranged in a first direction and which are arranged in a second direction different from the first direction, a cooling plate having a flow path arranged to correspond to an arrangement of the plurality of battery cells, and a fire-extinguishing tube connected to the flow path of the cooling plate and arranged between the plurality of cell units.

Provided are a battery cell and a battery module. The battery cell comprises a case comprising a space for accommodating an electrode assembly, a cap plate placed in an opening of the case to seal the case and comprising an electrolyte inlet formed therein, a first terminal and a second terminal installed to protrude outwardly through the cap plate, and a cell cap placed on a top side of the case to cover the cap plate.

An apparatus for controlling a main line switch mounted on an energy storage system is provided. The energy storage system includes a plurality of battery racks and a disconnect switch unit. The apparatus includes: a battery connection unit respectively on each of the battery racks, the battery connection unit being configured to measure a current of a corresponding one of the battery racks by using a built-in current measurement unit and to generate an overcurrent detection signal when the current of the corresponding one of the battery racks exceeds an overcurrent protection level; and a switch controller configured to open the disconnect switch unit to block a main line current flowing to the energy storage system in response to the overcurrent detection signal from a reference number or more of battery connection units.

A protection circuit module includes a substrate electrically connected to a battery cell, components in implementation regions on the substrate, a first insulating layer in regions other than the implementation regions on the substrate, a second insulating layer on the first insulating layer and separated from the components, and a coating layer on the first insulating layer and surrounding the components.

A welding apparatus for manufacturing a secondary battery includes an electrode tab welding tool configured to weld a plurality of electrode tabs formed on an electrode plate forming an electrode assembly to form an electrode tab welding portion and a strip conductor welding tool configured to weld a strip conductor to the welded electrode tab to form a strip conductor welding portion. The strip conductor to be electrically connected to an external terminal, and the strip conductor welding tool and the electrode tab welding tool being configured to form the strip conductor welding portion and the electrode tab welding portion in areas not overlapping each other.

An apparatus for notching electrode plates for secondary batteries and a method of notching electrode plates using the apparatus. The apparatus includes a first base, a punch plate coupled to a surface of the first base, a pair of punches spaced apart from each other, coupled to the punch plate, and configured to cut an electrode plate, a stripper positioned between the punches and coupled to the punch plate, a second base, a die coupled to the second base and configured to have the electrode plate placed on a first surface of the die. Each of separation distances between the punches and the stripper ranges from 0.25 mm to 1 mm.

A battery assembly includes a battery cell accommodating an electrode assembly and including a first side that includes a first electrode terminal and a second electrode terminal thereon, a protective circuit module above the first electrode terminal and the second electrode terminal, and a connecting portion connecting the first electrode terminal and the second electrode terminal to the protective circuit module, wherein the connecting portion has a foldable structure.

Provided are an apparatus and method for manufacturing a secondary battery. The apparatus for manufacturing a secondary battery may include an inserting part configured to support an upper portion of a case of the secondary battery, a pressurizing part configured to pressurize an outer surface of the case to form a beading part on the outer surface of the case during rotation of the case, a support part configured to support a lower portion of the case, and a gripper configured to selectively grip the case or release the grip of the case for rotation of the case.

The present disclosure relates to a die assembly used for notching or cutting an electrode plate of a secondary battery and a method of manufacturing the die assembly. The present disclosure provides a method of manufacturing a punch holder and a die holder of a die assembly for notching an electrode plate of a secondary battery, which includes fixedly overlapping a punch holder and a die holder, simultaneously polishing side surfaces of the punch holder and the die holder overlapping each other, setting a center point of each of the punch holder and the die holder overlapping each other, and generating a reference hole passing through each of the punch holder and the die holder overlapping each other at a position spaced from the center point, and a notching die assembly manufactured by the method.

The present disclosure relates to a die apparatus for manufacturing a secondary battery and a link-type knockout unit for the die apparatus. The die apparatus for manufacturing a secondary battery includes a lower die that supports an electrode plate and has one or more scrap discharge holes, an upper die positioned above the lower die and including a punch corresponding to each of the scrap discharge holes, and a knockout unit including a pad vertically moving inside the scrap discharge hole and a pad support that supports the pad upward and allows the pad to apply a reaction force corresponding to a downward pressure of the punch to a bottom surface of the electrode plate when the punch moves downward.

The present disclosure relates to a slurry mixer for a secondary battery electrode material and a secondary battery manufacturing apparatus including the slurry mixer. The slurry mixer includes an inner cylinder (50) including an inner cylinder body (54) configured to accommodate a slurry to be mixed and an upper support member (51) having a ring shape and fixed to an upper end portion of the inner cylinder body. An outer cylinder (40) including an outer cylinder body is configured to rotatably accommodate the inner cylinder, with the outer cylinder including a fixed flange (41) fixed to the upper end portion of the outer cylinder body, and the outer cylinder including a cover (42) mounted on the fixed flange and positioned on the upper support member. An elastic sealing portion (55) is mounted on the cover, with the elastic sealing portion being elastically deformable, the elastic sealing portion including a lower end portion (55a) in contact with the upper support member, and the elastic sealing portion being configured to prevent the slurry from leaking through a space between the cover and the upper support member.

A battery apparatus, including a battery switch (SW_B) that allows or blocks an electrical connection between a first battery (B1) and a second battery (B2), a first power conversion module (PC1) that performs power conversion between the first battery (B1) and an intermediary capacitor(C), a second power conversion module (PC2) that performs power conversion between the second battery (B2) and the intermediary capacitor (C), and a processor (10) configured to control the first and second power conversion modules (PC1, PC2) so that the first and second batteries (B1, B2) are complementarily charged and discharged via the intermediary capacitor (C) in an open state of the battery switch (SW_B) and obtains characteristic parameters of the first and second batteries (B1, B2) after complementarily charging and discharging the first and second batteries (B1, B2) is completed.

A lamination tape feeding system for an electrode plate substrate is provided. The lamination tape feeding system includes an input roll configured to input a lamination tape to be attached to an uncoated region of the electrode plate substrate to which an active material is applied, a plurality of guide rolls configured to guide the lamination tape, a discharge roll configured to discharge the lamination tape. The system also includes at least one crown roll that is disposed in a path of the lamination tape between the input roll and the discharge roll, disposed in the path between the guide rolls, and has a maximum height at the center of a width direction that intersects the moving direction of the lamination tape, with the height decreasing toward ends the at least one crown roll.

A slot die, a slot die temperature control apparatus, and a slot die control method are provided. The slot die includes an upper die (110), a lower die (120) configured to form a gap with the upper die (110), a slurry supply unit (130, 131, 132) configured to be connected to an external slurry supply source, one or more cavities (140) formed in the lower die (120) and connected to the slurry supply unit (130, 131, 132), a slot (150) connected to the one or more cavities (140) to coat a slurry (1) on a base material. The slot die also includes a temperature sensor (170, 171, 172) configured to measure a temperature of the slurry (1) and a temperature controller (160) provided adjacent to the slot (150), with the temperature controller (160) configured to control a temperature of the slurry (1) discharged from the slot (150) based on the temperature measured by the temperature sensor (160).

An apparatus for drying an electrode plate of a secondary battery comprises a hot air inlet pipe that includes a torsional structure that is configured to cause rotation hot air for drying an electrode plate coated with a secondary battery electrode material substance or a rolled electrode plate. The apparatus also includes a drying duct that includes hot air ejection ports configured to direct the rotating hot air discharged from the hot air inlet pipe to the electrode plate.

A positive electrode active material for an all-solid-state rechargeable battery, a method of preparing the positive electrode active material, and an all-solid-state rechargeable battery including the positive electrode active material are provided. The positive electrode active material includes secondary particles each including a lithium transition metal-based composite oxide and formed by agglomerating a plurality of primary particles, wherein at least a portion of the primary particles is arranged radially in the secondary particle, a first coating layer on the surface of the secondary particle and containing boron, and a second coating layer on the first coating layer and including ZrO<2> and Li<6>Zr<2>O<7>.

The present application relates to a positive electrode active material for a rechargeable lithium battery, and a method for preparing a positive electrode active material for a rechargeable lithium battery, the positive electrode active material including: a core particle comprising a lithium nickel-based composite oxide represented by Chemical Formula 11; and a coating layer located on a surface of the core particle and comprising one element or a combination thereof selected from the group consisting of Al, B, Ba, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Si, Sn, Sr, Ti, V, W, Y, Zn, and Zr, wherein the positive electrode active material has a value defined by Mathematical Formula 1 of greater than or equal to about 5. Chemical Formula 11 Li_a11Ni_x11M¹¹_y11M¹²_z11O_2-b11X_b11wherein, in Chemical Formula 11, 0.9≤a11≤1.2, 0.3≤x11<1, 0<y11≤0.7, 0≤z11≤0.7, 0.9≤x11+y11+z11≤1.1, and 0≤b11≤0.11, M¹¹ and M¹² are each independently one or more elements selected from Al, B, Ba, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Si, Sn, Sr, Ti, V, W, Y, Zn, and Zr, and X is one or more elements selected from F, P, and S, ∑MxEP-EDS/MxICPwherein Mx denotes a metal component contained in the coating layer, Mx (EP-EDS) denotes a mol% of the metal component Mx relative to total metals excluding lithium, present on the surface of the positive electrode active material as measured by Electron Probe - Energy Dispersive Spectroscopy (EP-EDS), and Mx (ICP) denotes a mol% of the metal component Mx relative to total metals excluding lithium, present in the entirety (surface and core) of the positive electrode active material as measured by Inductively Coupled Plasma analysis.

A dry binder, an electrode for a rechargeable lithium battery including the dry binder, a rechargeable lithium battery including the electrode, and a method for manufacturing the electrode are disclosed. The dry binder may include a crosslinking reaction product in which a polyamide-based polymer is crosslinked by an epoxy crosslinking agent, wherein the epoxy crosslinking agent is a novolac epoxy crosslinking agent.

The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator for a rechargeable lithium battery includes a porous substrate, and a coating layer located on at least one surface of the porous substrate.

Provided are a coolant leak detection apparatus (1) and method of detecting a coolant leak using the same. The apparatus is capable of measuring a mass and temperature of coolant (CW) stored in a tank part (20), and detecting a coolant leak using information on the mass and temperature of the coolant. The coolant leak detection apparatus (1) includes a mass measuring part (100) being installed on a tank part (20) that stores coolant (CW) and the mass measurement part being configured to measure a mass of the coolant stored in the tank part, a temperature measuring part (200) being installed on the tank part (20) and configured to measure temperature of the coolant, and a control part (300) electrically connected to the mass measuring part and temperature measuring part and configured to detect a leak of the coolant using information on the mass and temperature of the coolant received from the mass measuring part (100) and temperature measuring part (200), respectively.

The present disclosure relates to a system for predicting a life of a battery including a training data generation device configured to generate first data comprising life data of a reference battery and profile data for each battery degradation mode, a prediction model generation device configured to generate one or more life prediction models to predict profile data for each battery degradation mode with initial life data of a target battery as input, based on the first data, and a life prediction device configured to predict a life of the target battery based on second data comprising profile data for each battery degradation mode predicted by the one or more life prediction models based on the initial life data of the target battery.

The present technology relates to an apparatus and method for predicting quality of a product and a computer program and is directed to providing a solution capable of increasing a manufacturing yield of finished products and reducing a discard rate by verifying a tolerance range of a process factor applied to a product manufacturing process and optimizing a tolerance range of an unverified process factor. The present technology may provide a configuration in which a second target value of a performance factor of the finished product and an uncertainty range of the second target value are predicted from a first target value of a target process factor applied to a target manufacturing process and a tolerance range of the first target value using the performance prediction model, and the predicted uncertainty range is compared with a predefined reference range to verify the tolerance range of the first target value.

Provided is a positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the collector and including a positive electrode active material, a copolymer binder, and an amine. The copolymer binder includes a first structural unit including a carboxyl group and a nonionic second structural unit, and the carboxyl group and the amine are present in a form of a salt. The positive electrode increases capacity while reducing production cost, thereby ensuring long cycle-life characteristics and improving high-voltage characteristics and high-temperature storage characteristics. The rechargeable lithium battery including the positive electrode may exhibit high initial charge/discharge capacity and efficiency even under high voltage driving conditions, and can achieve long cycle-life characteristics.

A secondary battery, including a case, an electrode assembly accommodated in the case, a cap assembly coupled to the case to seal the case, an insulator between the electrode assembly and the cap assembly, and a fixing member fixing the insulator to the electrode assembly, wherein the fixing member is in contact with the insulator, and wherein a first surface of the electrode assembly and a second surface of the electrode assembly are opposite each other.

Disclosed are a positive electrode active material for an all-solid-state rechargeable battery, a method of preparing the positive electrode active material, and an all-solid-state rechargeable battery. The positive electrode active material includes a first positive electrode active material including a first lithium nickel-based composite oxide particle in a form of secondary particles formed by agglomeration of primary particles. A first coating layer is disposed on surfaces of the first lithium nickel-based composite oxide particles and includes boron. A second coating layer is disposed on the first coating layer and includes zirconium. The positive electrode active material also comprises a second positive electrode active material comprising a second lithium nickel-based composite oxide particle in a form of single particles. A third coating layer is disposed on surfaces of the second lithium nickel-based composite oxide particles and includes zirconium.

A secondary battery, including an electrode assembly having a first surface and a second surface facing each other, a lower case including a lower surface covering the first surface of the electrode assembly and first to fourth lower side surfaces extending from the lower surface, and an upper case including an upper surface bent and extending from the fourth lower side surface of the lower case and covering the second surface of the electrode assembly and first to third upper side surfaces extending from the upper surface, wherein the first to third upper side surfaces of the upper case are respectively coupled to the first to third lower side surfaces of the lower case.

A secondary battery, including an electrode assembly having a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, and a tape attached to an inner surface of the case, wherein the tape includes a first adhesive layer and a second adhesive layer, the first adhesive layer contacts and adheres to the inner surface of the case, and the second adhesive layer faces the electrode assembly.

The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a porous substrate, a coating layer located on at least one surface of the porous substrate, and an adhesive layer located on one surface of the coating layer. The coating layer includes a crosslinked product of a binder, a cross-linking agent, and a carboxyalkyl cellulose or a salt thereof, and a filler. The binder includes a (meth)acryl-based binder that includes a first structural unit derived from (meth)acryl amide and a second structural unit derived from (meth)acrylamidosulfonic acid or a salt thereof. The crosslinking agent includes an aziridine-based crosslinking agent, and the adhesive layer includes a (meth)acryl-based adhesive binder.

A method (1000) of inspecting a battery cell (400) includes: irradiating (S1010), by a light source device (310), an electromagnetic wave (522) toward the battery cell (400) including an electrode assembly and an electrolyte; generating (S1020), by a sensing device (320), reflected wave data by sensing a reflected wave from the battery cell (400); and generating (S1030) electrolyte impregnation data indicating a degree to which the electrode assembly is impregnated with the electrolyte based on the reflected wave data.