Samsung SDI Patente

The present disclosure relates to a protection circuit module and a battery assembly including the same. The protection circuit module may include a first substrate on which a first-first connection member connected to a first electrode terminal of a battery cell and a second connection member connected to a second electrode terminal of the battery cell are located, and a second substrate connected to the first substrate and on which a first-second connection member is located, wherein the second substrate may be electrically connected to the first-first connection member from among the first-first connection member and the second connection member.

An explosion-proof panel (100) includes a support portion (110) fixed to a container portion (12), the container portion accommodating one or more battery modules, a cover portion (120) parallel to the support portion (110), and a length-adjusting portion (130) configured to adjust a separation distance between the support portion (110) and the cover portion (120), wherein the cover portion (120) is movable in a first direction D1 according to an internal pressure of the container portion, the separation distance being adjustable.

A secondary battery and a battery module are disclosed. A secondary battery includes a case accommodating an electrode assembly; and a sensor, and the sensor includes a circuit on a surface of the case and configured to be shorted in response to a volume of the case reaching a certain volume or more; and a processor configured to determine a state of the secondary battery based on whether the circuit is shorted.

A coating apparatus may include a separating part configured to separate a composite substrate including a first substrate, a second substrate, and a central functional layer between a first surface of the first substrate and a first surface of the second substrate. The separating part may include a first slurry nozzle positioned at one side of the separating part and configured to apply a slurry onto the first surface of the first substrate, and a second slurry nozzle positioned at an other side of the separating part and configured to apply an other slurry onto the first surface of the second substrate. An electrode manufacturing apparatus may include the coating apparatus.

A dry electrode fabricating apparatus includes a chute including a chute housing. The chut housing includes 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. The chute also includes a plurality of spacers that divide the outlet port into a plurality of outlets and are coupled to the chute housing. The apparatus also includes a pair of calender rolls between which a gap is formed in which the electrode powder discharged through the outlets passes and is compressed into columns of electrode films.

Disclosed herein are a battery casing, a battery pack, and a method of manufacturing battery packs. The battery casing is configured to house a plurality of battery cells, and includes a first casing, and a second casing coupled to the first casing at a bonding area by laser bonding. The first casing has a convex semicircular cross-sectional shape in the bonding area.

The present disclosure relates to a battery module, and the technical problem to be solve is to provide a battery module eliminating a pressure imbalance. To this end, the present disclosure provides a battery module, which includes a cell assembly comprising a plurality of battery cells; and a band that includes an elastic material, and surrounds the cell assembly while applying pressure, wherein each of the plurality of battery cells includes a case; and a pair of tabs extending from at least one side of the case and passing through the band.

An apparatus for manufacturing a film for an electrode may include a feeder (110) configured to transport mixed powder, a guide chute (120) including a filter portion (150) configured to pass small particles (B) and leave large particles (A) among the powder falling from the feeder (110), and a guide portion (130) that guides the large particles in a given direction, and a rolling roll (140) configured to roll the powder delivered through the guide portion (130).

The present application relates to a welding device (1) which includes a driving portion (10) that generates ultrasonic waves, a welding horn (20) connected to the driving portion (10), and an anvil, wherein the welding horn (20) is configured to be positioned on one side of a welding object and the anvil is configured to be positioned on an other side of the welding object, wherein the welding horn (20) and the anvil, together, are configured to pressurize the welding object, wherein the welding horn (20) includes a body portion (21), a welded portion formed along an outer surface of the body portion (21), wherein the welded portion includes a first welded portion formed along the outer surface of the body portion, and a second welded portion formed on one side of the first welded portion. A method of manufacturing an electrode is also described.

The present disclosure provides an apparatus for notching and a method for notching. The apparatus for notching includes at least one wire cutter that cuts at least one of a first side surface and a second side surface positioned opposite to the first side surface and at least one pattern cutter that cuts at least one of the first side surface and the second side surface to form a cut pattern, and the wire cutter is disposed to face the electrode plate along the first direction.

A laser notching apparatus of the present disclosure includes a supporting member for supporting an electrode plate; and a laser irradiating member above the supporting member and which irradiates a laser to the electrode plate at a set angle to cut the electrode plate.

A laser test device for a laser selection includes a roll-to-roll unit, a laser irradiation unit, and an inspection unit. The roll-to-roll unit includes a supply roller for unwinding a substrate sheet and a winding roller for rewinding the substrate sheet, and roll-to-roll unit transports the substrate sheet at a predetermined speed. The laser irradiation unit includes a laser oscillator, a scanner and an optical system, and irradiates a laser beam for notching the substrate sheet being transported to thereby form a plurality of extension tabs in the substrate sheet. The inspection unit is positioned at the rear of the laser irradiation unit and obtains a magnified image of the notched area of the substrate sheet being transported.

A roll press apparatus (100) for manufacturing an electrode plate (11), the roll press apparatus including a frame portion (10), a first pressure roller (20) rotatably fixed on the frame portion to press a first surface of the electrode plate, the first pressure roller being configured to have a first expansion roller (23) protruding at each of opposite ends of the first pressure roller, a second pressure roller (30) rotatably fixed on the frame portion to pressurize a second surface facing the first surface of the electrode plate, the second pressure roller being configured to have a second expansion roller (33) protruding at each of opposite ends of the second pressure roller, and a driver (40) configured to provide a driving force to the first pressure roller and the second pressure roller

An apparatus for inspecting a coating status of punching oil includes a first sprayer, a first inspector, and a second sprayer, and a control unit. The first sprayer sprays punching oil onto an electrode plate according to a first spray direction and a first spray amount setting value, the first inspector acquires a first image of the electrode plate by using a first camera, the control unit determines whether or not an uncoated area of the electrode plate is present based on the first image, and when the uncoated area is determined to present on the electrode plate, the control unit sets a second spray direction and a second spray amount setting value to be applied by the second sprayer, and the second sprayer sprays punching oil onto the electrode plate according to the second spray direction and the second spray amount setting value.

The present disclosure relates to a secondary battery module and is directed to providing a secondary battery module capable of maintaining a physically stable structure even when a secondary battery deforms. The secondary battery module includes a plurality of secondary batteries arranged in a first direction, and a partition member positioned in a gap between two adjacent secondary batteries among the plurality of secondary batteries. The partition member has a variable length at least in the first direction in response to an electrical signal applied to the partition member.

The present disclosure relates to a secondary battery, and the technical problem to be solved is to provide a secondary battery that can secure current interruption performance due to high current and reduce cell resistance. To this end, the present disclosure provides a secondary battery including a fire extinguishing agent structure that includes a disk-shaped member; and a stick-shaped member vertically connected to the disk-shaped member, wherein the stick-shaped member and the disk-shaped member include a fire extinguishing agent that causes an endothermic reaction at a temperature of 100 °C or higher.

The present disclosure relates to a bonding strength inspection apparatus capable of inspecting a bonding strength of a bonding part without destruct an inspection target. The present disclosure provides a bonding strength inspection apparatus (300) comprising: a roughness measurement part (310) configured to measure a roughness of a bonding part (W) in which a base metal and a bonding member are bonded to each other; and a processor (320) configured to determine a bonding strength of the bonding part (W) based on the roughness.

The present disclosure relates to a rolling apparatus for manufacturing an electrode and a method of operating the rolling apparatus. A mechanism for is provided for inputting a rolling gap between a first roller and a second roller for rolling an electrode, thereby minimizing a quality deviation of the electrode. To this end, the present disclosure provides a configuration for predicting a rolling gap value using a gap prediction model and performing control such that a rolling gap between a first roller and a second roller becomes the predicted rolling gap value.

A battery module (10) includes: a frame (100) including a cell mounting portion (110) on which a battery cell (300) is mounted, and a board mounting portion (120) connected to a side of the cell mounting portion (110). The battery module (10) includes a protection circuit board portion (200) electrically connected to the battery cell (300) and mounted on the board mounting portion (200). The board mounting portion (200) includes a contact support portion (121) protruding toward an inside of the board mounting portion (200) and contacting and supporting the protection circuit board portion (200).

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a mixture of a first additive represented by Chemical Formula 1 and a second additive represented by Chemical Formula 2.

An electrode may include a current collector, a coating layer on the current collector, and an active (e.g., electrically active) material layer on the coating layer, wherein the coating layer includes a carbon-based conductive (e.g., electrically conductive) material and a copolymer binder, and the copolymer binder includes about 5 mol% to about 20 mol% of a hydrophilic structural unit and about 80 mol% to about 95 mol% of a hydrophobic structural unit, based on 100 mol% of the copolymer binder. The electrode may maximize or increase capacity (e.g., electrical capacity) while minimizing or reducing production cost, thereby ensuring long cycle-life characteristics and improving or enhancing high-voltage characteristics and high-temperature storage characteristics. The rechargeable lithium battery including the electrode may exhibit high initial charge/discharge capacity and efficiency even under high voltage driving conditions and may implement long cycle-life characteristics.

The present disclosure relates to a rechargeable battery and a battery pack including the rechargeable battery. The rechargeable battery includes a case having an open portion, an electrode assembly and an electrolyte accommodated in the case, and a cap-up in the open portion. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate. The separator includes a base and a coating layer located on at least one surface of the base. A sum of machine direction (MD) elongation rate and transverse direction (TD) elongation rate of the base is 200% or less. A sum of MD tensile strength and TD tensile strength of the base is 4,000 kgf/cm² or less. The coating layer includes a binder, and the binder includes one or more of an aramid-based resin and an acrylic resin.

A secondary battery includes: an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; a lower case having an open top, and including a receiving portion to receive the electrode assembly; and an upper case sealing the open top of the lower case. A first electrode terminal electrically connected to the first electrode is located on one side surface of the lower case; the upper case is integrally extended from an upper edge portion of the one side surface; and the upper case is connected to edge portions of the lower case, other than the upper edge portion of the one side surface, from among open upper edge portions of the lower case.

A method for preparing a positive electrode active material includes: (1) pulverizing a carbon-based raw material to prepare carbon-based fine powder having an average particle diameter of about 10 nm to about 100 nm, (2) mixing a lithium metal composite oxide and the carbon-based fine powder to prepare a mixed powder, and (3) applying rotation of about 1,000 rpm to about 6,000 rpm for about 2 minutes to about 10 minutes to the mixed powder to form or provide a carbon-based coating layer on a particle surface of the lithium metal composite oxide Also disclosed are a positive electrode active material and a rechargeable lithium battery including the positive electrode active material.

A battery module includes: a housing; a plurality of battery cells accommodated in the housing and each including a case including a vent hole and a cell terminal protruding from the case; a bus bar electrically connecting the cell terminal of a battery cell of the plurality of battery cells and the cell terminal of another battery cell of the plurality of battery cells; and a bus bar holder including a holder body that supports the bus bar and includes a holder through hole corresponding to the vent hole, and a first protective member including an insulating material and located between the holder body and the case to face the case.

The present disclosure relates to a secondary battery inspection apparatus, a secondary battery inspection method, and a secondary battery manufacturing method, and the problem solved by the present disclosure is to identify an internal state of a secondary battery in a non-destructive manner. A secondary battery inspection apparatus according to one embodiment includes a magnetic field generator configured to apply a magnetic field to the secondary battery to be tested, a high frequency generator configured to generate a high frequency of a predetermined frequency and apply the high frequency to the secondary battery to be tested, a sensor configured to detect electromagnetic waves emitted from the secondary battery to be tested to which the high frequency is applied while the magnetic field is applied and a processor configured to determine an internal state of the secondary battery to be tested using the emitted electromagnetic waves detected by the sensor.

A battery module includes a plurality of battery cells, busbars electrically connecting the plurality of battery cells, a holder positioned on the plurality of battery cells and accommodating the bus bars, and a cover portion positioned on the holder and covering the bus bars, wherein the cover portion includes a first layer, a second layer positioned on the first layer, and a third layer positioned on the second layer, and the second layer includes a material different from those of the first layer and the third layer.

A positive electrode active material, a method for preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a rechargeable battery (e.g., a rechargeable lithium battery) including the positive electrode are disclosed. The positive electrode active material may have a disordered rocksalt structure. The positive electrode active material includes a compound represented by Chemical Formula 1, wherein a ratio of M<1> having an oxidation number of +2 is less than or equal to about 25 at%, based on a total of 100 at% of M<1>.

A secondary battery includes: an electrode assembly including a first electrode including a first electrode tab, and a second electrode including a second electrode tab; a case including a three-dimensional shaped body having an accommodating space therein to accommodate the electrode assembly, and a flange extending in a horizontal direction from an open end of the body around the accommodating space; a cover on the case and joined to the flange to seal the accommodating space; and a first side plate joined to the body.

The present disclosure relates to a face-to-face cooling plate and a battery pack including the same. The face-to-face cooling plate capable of absorbing displacement that occurs when a battery cell swells to prevent a sudden decrease in lifetime of a battery and prevent leakage of coolant that is caused by swelling compression. The face-to-face cooling plate includes a cooling chamber which is provided between battery cells and forms a space therein so that cooling fluid is circulated and a leakage prevention unit provided in the cooling chamber, and accommodates the cooling fluid when the battery cell swells.

A method for preparing a single-particle type positive electrode active material precursor includes (a) mixing a nickel-based hydroxide and an inactive lithium salt to prepare a mixture; and (b) performing a first heat treatment on the mixture to obtain a nickel-based oxide in a form of single particles. According to some example embodiments, a positive electrode active material precursor and a method for preparing the same, and a method for preparing a positive electrode active material including the same minimize or reduce the production process, thereby ensuring long cycle-life characteristics and improving high-temperature storage characteristics. A rechargeable lithium battery using the positive electrode active material can exhibit high initial charging and discharging capacity and efficiency, and can implement long cycle-life characteristics.

An electrode assembly (20) includes a separator (13) folded multiple times with bent portions alternating on a first side (13a) and a second side (13b) thereof in a zigzag form, a first electrode (11) inserted into an inner side of each of the bent portions on the first side (13a) of the separator (13), a second electrode (12) inserted into an inner side of each of the bent portions on the second side (13b) of the separator (13), and a fixing member (14) fixing the separator (13), the first electrode (11), and the second electrode (12), the fixing member (14) including a hydrogel.

A secondary battery testing device including: a support bulkhead configured to contact one side surface of a battery cell for an internal short-circuit test; a penetration bulkhead opposite to the support bulkhead and configured to contact an opposite side surface of the battery cell, the penetration bulkhead having an access opening extending therethrough toward the support bulkhead; a bulkhead connector connecting the support bulkhead and the penetration bulkhead to each other and maintaining a gap between the support bulkhead and the penetration bulkhead; an alignment mechanism mounted on the penetration bulkhead and having a nail guide corresponding to the access opening and having a guide passage; and a nail configured to penetrate the battery cell through the guide passage to cause an electrical short-circuit of the battery cell.

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The electrolyte includes a non-aqueous organic solvent; a lithium salt; and an additive, and the additive includes a mixture of a first additive represented by Chemical Formula 1 and a second additive represented by Chemical Formula 2.

A protection circuit module (210) of a battery assembly includes a substrate (220), a component mounted on the substrate (220), and a tab connection portion (240) spaced from the component on the substrate and to which an electrode tab (150) of a battery cell (100) is connected, wherein a first barrier (410) and a second barrier (420) are on the tab connection portion (240) and face each other.

The present disclosure relates to a thermal runaway detection method and a thermal runaway detection device and battery system performing the same. An embodiment provides a thermal runaway detection device including: a measuring device configured to measure a temperature of a battery; and a control device configured to monitor the temperature of the battery based on a measurement value received from the measuring device, the control device being further configured to determine that a thermal runaway event has occurred in the battery based on the temperature of the battery and a status of the measuring device satisfying one or more conditions.

The present disclosure relates to a battery apparatus and a battery pack that are made safer by detecting a battery charging situation through a discharge path (400) when the battery pack is in a shutdown state of the battery pack. To this end, the present disclosure provides a configuration for waking up a processor (100) using a voltage at both ends of a current detection element (500) when the processor (100) is in a sleep state and a battery is charged by a charging current supplied through a discharge path (400).

The present disclosure relates to a battery module, and the object to be solved is directed to providing a battery module capable of preventing heat propagation of a battery using an insulating cover. To this end, the present disclosure provides a battery module including one or more cell stacks formed by arranging a plurality of battery cells and having a first stack surface facing in a first direction and a second stack surface facing in a second direction and a module case in which the cell stacks are accommodated, wherein the battery cell includes an electrode assembly, a cell case having a first surface facing in the first direction and a second surface facing in the second direction, and an insulating cover coupled to the first surface and the second surface, and the second stack surface is insulated by a plurality of insulating covers provided on a plurality of battery cells.

The present disclosure relates to a battery protection circuit module and a method of protecting a battery using the same, and more particularly, to a battery protection circuit module that prevents an overvoltage protection malfunction and a method of protecting a battery using the same. A battery protection circuit module may include a first integrated circuit (IC) disposed relatively closely to an output stage, a first field effect transistor (FET) connected to the first IC, a second IC disposed relatively closely to an input stage, a second FET connected to the second IC, and a first shunt resistor disposed at a preset node by considering a difference between voltages recognized by the first IC due to a second shunt resistor and the second FET that are connected to the second IC.

A battery case and a pouch-type (kind) secondary battery including the same are provided. The battery case includes an accommodating portion (111) accommodating an electrode assembly having an electrode lead (20) attached thereto and a sealing portion (130) provided along an outer periphery of the accommodating portion, sealing the accommodating portion, and having a side from which the electrode lead is drawn, in which the outer periphery of the accommodating portion is defined by a first edge on which the electrode lead is arranged and a second edge forming a preset angle with the first edge, and a bending portion having a set or predetermined depth is formed to extend in the sealing portion, and the sealing portion (130) is bent from the bending portion toward the accommodating portion (111).