Samsung SDI Patente

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.

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.

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.

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 secondary battery (100), including an electrode assembly (110) including a winding of a first electrode (112), a second electrode (114), and a separator (116) between the first electrode (112) and the second electrode (114), a case (120) accommodating the electrode assembly (110), and a first protective tape (510_1) attached to the first electrode (112) of the electrode assembly (110), wherein the first protective tape (510_1) wraps at least one turn around an interior of the electrode assembly (110) along a winding direction thereof.

Disclosed are methods of manufacturing positive electrode slurries for all-solid-state batteries, and positive electrodes manufactured using the methods. The method includes preparing a first mixture including a positive electrode active material and a solid electrolyte, adding a binder solution to the first mixture to perform a first kneading process on a second mixture having a solid content adjusted to a range of ≥ 94 wt% to ≤ 95 wt%, adding the binder solution to the second mixture to perform a second kneading process on a third mixture having a solid content adjusted to a range of ≥ 90 wt% to ≤ 93.9 wt%, and adding a conductive material solution to the third mixture to perform a mixing process on a fourth mixture having a solid content adjusted to a range of ≥ 70 wt% to ≤ 89.9 wt%.

The present disclosure provides a secondary battery. A secondary battery according to the present disclosure includes an electrode assembly including a plurality of first electrode tabs and a plurality of second electrode tabs, and a collector plate joined to the plurality of first electrode tabs, in which the plurality of first electrode tabs includes a first tab group, the first tab group is joined to the collector plate while at least some of the plurality of first electrode tabs of the first tab group are bent in a first direction and others of the plurality of first electrode tabs of the first tab group are bent in a second direction, and the first direction and the second direction are substantially parallel to a stacking direction of the electrode assembly and are substantially opposite to one another.

A battery assembly includes a battery cell that accommodates an electrode assembly and includes a first electrode terminal on a first side surface of the battery cell and a second electrode terminal on a second side surface of the battery cell different from the first side surface, a protective circuit module on the first side surface of the battery cell, and a connection unit electrically connecting the first electrode terminal to the protective circuit module and the second electrode terminal to the protective circuit module.

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 spacer in contact with at least a portion of an outer surface of the electrode assembly, a case including a top opening and accommodating the electrode assembly and the spacer, and a cap assembly at the top opening to seal the electrode assembly.

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.

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.

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.

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 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.

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 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 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>.

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 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).

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.

An energy storage system (ESS) includes a container to accommodate a plurality of battery modules, and an explosion-proof panel (200) arranged on one surface of the container (100) to seal the container. The explosion-proof panel (200) includes a gas tank (300) to release inert gas into the container when a pressure inside the container is lower than a pressure outside the container.

Examples of the disclosure include an electrode substrate for a rechargeable lithium battery, an electrode and a rechargeable lithium battery including the electrode substrate, and a method for manufacturing the electrode. The electrode substrate for a rechargeable lithium battery includes a first metal layer including a first metal; an insulating layer on the first metal layer and including a polymer; and a second metal layer on the insulating layer and including a second metal. The insulating layer has an interconnected pore structure and is divided into a first region and a second region, and the first region further includes a third metal that substantially fills the interconnected pore structure within the insulating layer.

A secondary battery, including a case, an electrode assembly in the case, a cap plate that seals the case, a tab member connected to the electrode assembly, the tab member extending toward the cap plate, a terminal body coupled to the cap plate, the terminal body facing the tab member, a guide plate extending from the terminal body, the guide plate being in the tab member, and a connection member in the terminal body, the connection member being connected to the tab member.

A secondary battery and a battery pack are disclosed. A secondary battery includes an electrode assembly including an electrode tab, a case in which the electrode assembly is accommodated, a connection member electrically connected to the electrode tab, a side terminal electrically connected to the connection member, a cap plate passing through the side terminal and coupled to an opening of the case, and an insulating part insulating the cap plate from the side terminal and insulating the cap plate from the electrode assembly.

Disclosed are a system and method for preventing the reuse of a battery monitoring system (BMS) and a system and method for preventing an unauthenticated private company from reusing a BMS only when a cell is replaced in a battery pack. The system for preventing the reuse of a BMS includes a battery monitoring unit configured to monitor specifications of a battery, a cell replacement determination unit configured to determine whether a cell has been replaced in a battery pack based on results of the monitoring of the specifications of the battery, and a permanent failure mode entry unit configured to determine whether to enter a permanent failure mode for the battery pack based on the results of the determination of whether the cell has been replaced.

An electrode assembly according to the present disclosure includes a positive electrode plate, a negative electrode plate, a separator positioned between the positive electrode plate and the negative electrode plate, and an electrode tab electrically connected to the positive electrode plate. The electrode tab includes a first metal and a second metal that at least partially surrounds the first metal.

Aspects of embodiments of the present disclosure relate to pouch-type secondary batteries (100), press devices (150) for secondary batteries (100), and manufacturing methods (180) of secondary batteries (100). A pouch-type secondary battery (100) includes: an electrode assembly (110) including a stack of unit cells (112) including: a first electrode plate (114); a first electrode tab (116) on the first electrode plate (114); a second electrode plate (120); a second electrode tab (122) on the second electrode plate (120); and a separator (118) between the first electrode plate (114) and the second electrode plate (120); and a first tape (130, 132) attached to a front side of the electrode assembly (110) perpendicular to a stacking direction of the stack of unit cells (112). The first tape (130, 132) is located at a corner portion (138) of the electrode assembly (110) where the first electrode tab (116) or the second electrode tab (122) is located, and the corner portion (138) is located at an inclined area (128, A, A') where a thickness of the electrode assembly (110) decreases.

Disclosed are a positive electrode for a rechargeable lithium battery including a positive active material including a small particle diameter monolith particles having a particle diameter of about 1 µm to about 8 µm as a nickel-based lithium metal oxide, and a large particle diameter secondary particles having a particle diameter of about 10 µm to about 20 µm as a nickel-based lithium metal oxide, wherein an X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrodeis greater than or equal to about 3, a method of preparing the same, and a rechargeable lithium battery including the positive electrode.

A battery management system (BMS) including a memory in which a resistance value of a wiring resistor of an electrical connection path between a battery cell and the BMS is stored, and a processor configured to measure a first cell voltage of the battery cell and to remove a voltage error due to the wiring resistor reflected in the measured first cell voltage based on the resistance value of the wiring resistor stored in the memory to estimate a second cell voltage that is an actual voltage of the battery cell.

A battery cell holder for accommodating a battery cell includes: an upper cover configured to extend around an upper portion of a battery cell while exposing a first electrode terminal of the battery cell; and a lower cover configured to extend around a lower portion of the battery cell while exposing a second electrode terminal of the battery cell, the lower cover and the upper cover being coupled to each other. A pair of parting sides of the upper cover and the lower cover that contact each other when the upper cover and the lower cover are coupled together extend diagonally.

A battery module includes a housing (100), a plurality of battery cells (200), each of which includes an electrode assembly (210), a case (220) accommodating the electrode assembly (210), a cap plate (230) sealing the case (220), a pair of terminals (240) protruding from the cap plate (230), and a vent (250) between the terminals (240). The plurality of battery cells (200) is arranged in the housing (100) in a first direction. The battery module further comprises a holder (300) in the housing (100) and facing the cap plate (230), and an inner sheet (400) between the cap plate (230) and the holder (300) to cover the vent (250).