Abstract: A secondary battery that has flexibility and can inhibit degradation of a positive electrode lead connection portion or a negative electrode lead connection portion is provided.

Abstract: A battery cell and a battery module include a direct water-cooling battery cell and a direct water-cooling battery module. The corrosion resistance of the battery cell can be improved by using a sacrificial metal having a higher metal ionization tendency than that of a battery cell case, and the battery cell can be cooled by using general cooling water for vehicles.

Abstract: An end cover assembly includes a top cover unit, a pole, an upper plastic member, and a fixing member. The pole penetrates the top cover unit and includes a base portion and a connecting portion protruding from an end surface of the base portion. A part of the end surface of the base portion outside a coverage area of the connecting portion is formed as a step surface surrounding the connecting portion. The upper plastic member is at least partially sleeved on a peripheral side of the base portion. The upper plastic member is partially located at a side of the top cover unit. The fixing member is partially located at the other side of the top cover unit. A seam is formed between the fixing member and the connecting portion and surrounds the connecting portion, and the step surface abuts against the fixing member and cover the seam.

Abstract: Provided is a battery container (1) including a can body (2) and a can lid (3), each being made of a metal. A peripheral edge portion of the can lid (3) is joined to a peripheral edge of an opening portion of the can body (2) formed in a bottomed cylindrical shape. A bottom portion (21) of the can body (2) is formed so as to include a curved surface, and the can lid (3) is formed so as to include a curved surface that is curved in the same manner as an area of the bottom portion (21) of the can body (2) that is formed as the curved surface.

Abstract: A secondary battery according to an embodiment of the present disclosure includes an electrode assembly to which an electrode lead is attached, a case accommodating the electrode assembly, a sealing portion formed to seal the electrode assembly in the case, and a lead film surrounding a portion of the outer surface of the electrode lead and interposed between the electrode lead and the sealing portion. At least a partial region of an edge portion facing the electrode assembly in the lead film is non-linear.

Abstract: A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal (GTMS) comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule. The outer ferrule is secured to an opening in the casing. Two methods are described for manufacturing a co-axial GTMS depending on the melting temperatures of the inner and outer insulating glasses. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.

Abstract: Discussed is a battery module, which may include a plurality of battery cells each having electrode leads protruding in a first direction, the plurality of battery cells being stacked in a second direction; and a bus bar including a body portion and a junction portion, the junction portion being a portion of a body portion that is bent and electrically connected to an electrode lead among the electrode leads.

Abstract: A method for manufacturing a rechargeable battery pack for an electric handheld power tool, wherein the rechargeable battery pack has a housing including a plurality of preferably cylindrical rechargeable battery cells, wherein the rechargeable battery cells are surrounded, at least in sections, by a thermally conductive potting material for the purpose of dissipating heat.

Abstract: A battery module frame accommodates a plurality of battery cells. The battery module frame includes a first layer made of aluminum or aluminum alloy material; a second layer made of metallic material with a mesh structure, and stacked over the first layer; and a third layer made of aluminum or aluminum alloy material, and stacked over the second layer.

Abstract: A case of battery includes a base plate and a plurality of side beams. The plurality of side beams are connected to the base plate and enclosed together with the base plate to form an accommodation space. At least one of the side beams includes a beam body and a protrusion protruding from a surface of the beam body facing towards the accommodation space.

Abstract: The power storage module includes power storage cells, a resin frame, and a case. The resin frame includes an intervening portion interposed between the pair of power storage cells, and a flow path forming portion forming a flow path of the cooling fluid. The flow path forming portion includes a one-side flow path forming portion provided in a region on one side of the intervening portion in the second direction, and an other-side flow path forming portion provided in a region on the other side of the intervening portion in the second direction. The cross-sectional second moment of the one-side flow path forming portion is larger than the cross-sectional second moment of the other-side flow path forming portion. The spring constant of the other-side flow path forming portion in the first direction is larger than the spring constant of the one-side flow path forming portion in the first direction.

Abstract: A system applies a variable pressure to an electric battery including at least one electrochemical cell inserted between a first end plate and a second end plate which are parallel to one another. The system includes a first assembly including a first actuating wall, at least a first spring inserted between the first actuating wall and the first end plate, a link extending parallel to the first actuating wall and moved by an actuator. The link is connected to the first actuating wall by at least one cam, a first end of which is rotatably mounted on the link, and a second end of which is rotatably mounted about an axis of rotation rigidly connected to a stationary wall. The second end bears against the first actuating wall.

Abstract: A cell unit includes a cell and a bracket. The cell includes a cell housing and an electrode terminal. The cell housing includes a body portion and a first sealing part. The first sealing part includes a first connection portion. The bracket includes a first portion. The first portion covers a part of the first connection portion. The first connection portion includes a first end face. The first end face includes a first region. The first portion includes a first section and a second section. The first section covers a part of the first end face and a part of an outer surface of the first connection portion. The second section is connected to the first section, the first region is located outside the second section. When viewed along a second direction, the first section and the second section form a notch. The first region is located in the notch.

Abstract: A battery module can comprise: an end plate; a pressure plate spaced apart from the end plate by a distance; an array of pouch cells disposed between the end plate and the pressure plate; and an expansion protection system configured to allow the distance to increase from a first length to a second length in response to charging the array of pouch cells, and/or decrease from a second length to the first length or a third length in response to discharging the array of pouch cells.

Abstract: A battery protective bottom plate, a battery pack composite protective structure and a vehicle. The battery protective bottom plate comprises an upper fiber reinforced resin layer, a metal plate and a lower fiber reinforced resin layer, wherein the metal plate is located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer, and the following condition is satisfied: (I) 1 ? ? 2 * ( d 1 + d 2 + d 3 ) / d 2 ? 2 + ( ? 1 * d 1 + ? 3 * d 3 ) / ( d 1 + d 3 ) * ( ? 1 * d 1 + ? 3 * d 3 ) / ( d 1 + d 3 ) ? 2 ? 2 .

Abstract: The battery pack composite includes a battery pack and a battery protection bottom plate. The battery protection bottom plate includes a metal plate and is disposed below the battery pack. A buffer zone is disposed between the battery pack and the battery protection bottom plate, and the buffer zone and the metal plate satisfying: 0.018 ? ( d - 0.4 ) ? h ? * ? ? 0 . 0 ? 8 ? 5 , where d is a thickness in mm of the metal plate, ? is a tensile strength in MPa of the metal plate, ? is an elongation at break of the metal plate, and h is a height in mm of the buffer zone.

Abstract: A battery pack for a vehicle, includes a tray assembly; a plurality of battery modules arranged to form a planar grid in the tray assembly; and a pack cover coupled to an upper side of the tray assembly, and together with the tray assembly, forming a pack internal space to accommodate the battery modules therein, in which the battery modules arranged in the tray assembly includes first battery modules of which module outlets for discharging venting gas from insides thereof are formed in a longitudinal direction of the battery pack, and second battery modules of which module outlets are formed in a transverse direction, and the first battery module and the second battery module are alternately disposed inside the tray assembly to form the planar grid.

Abstract: Provided in embodiments of the present application are a battery, a power consuming apparatus, and a method and apparatus for manufacturing a battery. The battery includes: a battery cell group including a plurality of battery cells arranged in a first direction; an enclosure including a first beam and a second beam that are arranged at an interval in the first direction, where the battery cell group is arranged between the first beam and the second beam, at least one of the first beam and the second beam is a locking beam, and a wedge-shaped gap is provided between the locking beam and the battery cell group; and a wedge-shaped component configured to fill the wedge-shaped gap, so as to lock the battery cell group to the enclosure. The technical solution described above can improve stiffness and strength of the battery, thereby improving performance of the battery.

Abstract: An energy storage system includes: a rack frame; a tray provided to the rack frame; a battery module on the tray and insertable in the rack frame while moving in a first direction; a guide rail arranged to face the battery module and configured to guide movement of the battery module; and a stopper between the battery module and the guide rail and configured to selectively restrict movement of the battery module in a second direction opposite the first direction.

Abstract: Vehicle and power battery pack thereof are provided, where the vehicle includes a frame, a first seat, a second seat, a power battery pack, a fuel tank assembly, a drive motor and a transmission shaft. The first seat and the second seat are arranged in a cab at intervals in a second direction. In a third direction, part of the power battery pack is located in a space between the first seat and the frame, and rest of the power battery pack is located in a space between the second seat and the frame. An avoidance portion is arranged at a bottom of the power battery pack, and is located between the first seat and the second seat. The avoidance portion is arranged to cooperate with the transmission shaft, and the transmission shaft extends in the avoidance portion in a first direction.

Abstract: An energy storage system includes: a rack frame accommodating battery modules; a sub-frame secured to the rack frame and facing a battery module of the battery modules; a guide rail concavely formed on a surface of the sub-frame; a fire extinguishing pipe arranged within the guide rail and including a spray hole through which a fire extinguishing liquid is sprayable; a heat detection member configured to surround the fire extinguishing pipe and open or close the spray hole in conjunction with a temperature variation; and a first anti-detachment member arranged between the guide rail and the heat detection member to prevent the fire extinguishing pipe from being detached from the guide rail.

Abstract: A battery pack includes: a battery stack; a lower case that houses the battery stack; an upper cover that covers the battery stack; a restraint band that restrains the upper cover; a first fastening member that fastens the upper cover to the lower case; and a second fastening member that fastens the restraint band to the upper cover. The upper cover has a top wall provided above the battery stack, and the top wall includes a base for fastening the second fastening member. The restraint band has a top plate portion provided above the top wall, the top plate portion has a bead extending in one direction, and the bead has a covering portion that covers the base. The second fastening member fastens the covering portion to the base.

Abstract: A battery module unit, including a plurality of sequentially stacked first brackets and a plurality of battery cells. Each first bracket includes a bracket body. At least one battery cell on one side of a first fixing bracket forms a first battery cell group. At least one battery cell on the other side of the first fixing bracket forms a second battery cell group. The battery module unit further includes a first connecting structure, disposed at one end of a plurality of the bracket bodies. A fastener is disposed on the first fixing bracket. The fastener is fixed to a sidewall of the first connecting structure so that the first connecting structure is fixed to the first fixing bracket in a first direction. The first direction is a stacking direction of the plurality of first brackets.

Abstract: A battery pack may include a plurality of batteries and an enclosure surrounding the plurality of batteries. The enclosure includes: a first metal wall member, a second wall member, the second wall member including a fiber-reinforced plastic laminate and having a metal mesh layer within the fiber-reinforced plastic laminate. The battery pack may include a joint between the first metal wall member and the second wall member, wherein the joint includes: an electrically conductive metal fastener that mechanically couples the first metal wall member to the second wall member, and an electrically conductive coupling member in mechanical and electrical contact with the first metal wall member and with the metal mesh layer.

Abstract: A battery module includes a cell holder including insertion regions in which battery cells arranged in a plurality of columns are inserted, and a blocking part which covers an insertion region of the insertion regions in which a battery cell is not inserted.

Abstract: A power storage device includes: a stack formed of a plurality of battery cells arrayed in an X direction (array direction); a smoke exhaust duct placed on the stack and extending in the X direction; a bus bar module including a plurality of bus bars connected to the stack; and a sponge (elastic body) placed on the smoke exhaust duct. The bus bar module covers at least a part of the smoke exhaust duct. The sponge is placed between the bus bar module and the smoke exhaust duct.

Abstract: Aspects of the subject disclosure relate to various features of a battery subassembly, such as a battery module. The battery subassembly may be implemented in an electric vehicle or in a building.

Abstract: A battery explosion-proof valve, a battery plug-in box and an electric apparatus are provided. The battery explosion-proof valve includes a fire-fighting medium pipeline, a housing and a piercing assembly. The fire-fighting medium pipeline has a medium outlet and a protective film connected to the medium outlet to block a fire-fighting medium in the fire-fighting medium pipeline. The housing has a cavity, a first opening and a second opening. The first opening and the second opening are communicated with the cavity. The fire-fighting medium pipeline is fitted in the first opening. The cavity is configured to be communicated with an inner cavity of a battery plug-in box through the second opening. The piercing assembly is arranged in the cavity and is movable relative to the fire-fighting medium pipeline to pierce the protective film.

Abstract: An end cap includes a cap body and a pressure relief groove and the pressure relief groove is provided in the cap body. The pressure relief groove includes a long groove section and a short groove section located in different orientations, wherein the long groove section is connected to the short groove section. The long groove section is provided with a thickening zone, and a thickness of the cap body in the thickening zone is greater than a thickness of the cap body in the short groove section.

Abstract: A battery cell includes: a housing having a closed inner cavity; an electrode assembly arranged in the inner cavity; and a first pressure relief component arranged on the housing. The first pressure relief component has a first weakened portion, and the first weakened portion is a reduced thickness portion and is configured to be opened when a first preset condition is met within the housing.

Abstract: The disclosure belongs to the technical field of power batteries, and in particular, relates to a battery pack. A box body and an upper cover are included, and box body has a cell installation compartment and an exhaust compartment. The upper cover covers the box body and has a gas-solid separation flow channel adapted to centrifugally separate gas from particulate matter in flue gas flowing through the gas-solid separation flow channel. A gas inlet of the gas-solid separation flow channel communicates with the cell installation compartment, and a gas outlet of the gas-solid separation flow channel communicates with the exhaust compartment.

Abstract: A battery assembly with a battery and a cell degassing channel for discharging gases from the battery, which includes at least one battery cell. The cell degassing channel has a chamber which is designed such that a gas emerging from the at least one battery cell can be introduced into it and can be guided through it along at least one gas discharge path to at least one outlet opening of the chamber. The chamber has at least one gas guiding structure arranged in an interior of the chamber and not running in a straight line in a main course direction that corresponds to a first direction, which is designed such that the at least one gas discharge path has multiple changes of direction in its course in the main course direction with respect to a second direction perpendicular to the first direction.

Abstract: A battery pack assembly includes a first battery cell stack, a second battery cell stack, and an enclosure having an interior area. The first and second battery cell stacks are housed within the interior area. A shield spans over the first and second battery cell stacks within the interior area. The shield defines a first channel with the first battery cell stack to receive vent byproducts from at least one battery cell within the first battery cell stack. The shield defines a second channel with the second battery cell stack to receive vent byproducts from at least one battery cell within the second battery cell stack.

Abstract: A pouch cell manufacturing method of the present disclosure prevents the sealing quality of a pouch from being deteriorated by an electrolyte solution, by reducing the amount of the electrolyte solution staining the sealing portion in the pouch, and a pouch cell in which gas inside the pouch can be efficiently discharged to the outside of the pouch is provided. The pouch cell of the present disclosure includes: an electrode assembly; a pouch within which the electrode assembly is accommodated; and a gas discharge pipe that is disposed such that the gas discharge pipe extends from the inside of the pouch to the outside, in which gas inside the pouch can be transmitted through the gas discharge pipe and discharged to the outside of the pouch.

Abstract: A battery module may be configured to include a frame providing an interior space; a plurality of battery cells accommodated inside the frame and disposed in the left-right direction; a bus bar frame assembly located in front of the plurality of battery cells and electrically connected to the plurality of battery cells; and a barrier disposed between the plurality of battery cells and configured such that a front edge is covered by a fire-resistant coating portion.

Abstract: An energy storage system includes a structural cabinet, a battery module and a PCS module mounted in the structural cabinet, where the PCS module is arranged on top of the battery module or at an end side of the battery module, and a heat insulation layer is arranged between the PCS module and the battery module. In a practical application process of the energy storage system, since the heat insulation layer is arranged between the PCS module and the battery module, even if an electric arc in the PCS module causes a fire, under an action of the heat insulation layer, flame generated by the electric arc in the PCS module mainly spreads in a direction away from the thermal insulation layer.

Abstract: An exterior material for battery module or battery pack includes a metal layer including aluminum or an aluminum alloy and a fire extinguishing agent layer laminated on the metal layer and including a solid fire extinguishing agent for metal fires.

Abstract: A battery device includes a case including a cover having a venting hole formed therein, a cell assembly disposed within the case and including a plurality of battery cells, a fixing structure formed on a rear surface of the cover, a first heat blocking member having at least a portion disposed between at least some of the plurality of battery cells and including a first end connected to the fixing structure, and a second heat blocking member disposed between the cell assembly and the cover and covering the venting hole.

Abstract: A battery module includes at least one battery cell, a module case accommodating the at least one battery cell, at least one leakage prevention pocket provided in the module case to prevent leakage of flame or spark in case of an abnormal situation of the at least one battery cell, and a fire extinguishing agent injection unit provided to the at least one leakage prevention pocket and configured to inject a fire extinguishing agent into the module case in the event of the abnormal situation.

Abstract: A battery containment construct including a first housing portion, a second housing portion complimentary to the first housing portion to define a cavity therebetween, and a fastening system to join the first housing portion to the second housing portion. The cavity defined therebetween being adapted to retain a plurality of reactive metal battery cells therein. The battery containment construct further including at least one fire department connection joined to at least one of the first housing portion or the second housing portion and in fluid communication with the cavity so enable connection of a fire hose to the battery containment construct for providing a fire inhibitor to the reactive metal battery cells in order to extinguish or contain a fire.

Abstract: A battery includes a battery cell provided with a pressure relief mechanism configured to be actuated in response to internal pressure or temperature in the battery cell reaching a threshold to release the internal pressure, a collection pipe configured to accommodate a firefighting medium, and a firefighting pipe configured to connect to the collection pipe to allow the firefighting medium to be fed to the firefighting pipe. The firefighting pipe is configured to discharge the firefighting medium toward the battery cell in response to the pressure relief mechanism being actuated. Two ends of the firefighting pipe are a first end and a second end respectively. The first end is configured to connect to the collection pipe to allow the firefighting medium to enter the firefighting pipe through the first end, and the second end is closed.

Abstract: A traction battery pack includes an enclosure assembly; and a pressure equalization device received within a wall of the enclosure assembly. The pressure equalization device includes a housing assembly and a flow restrictor configured to restrict flow through the housing assembly during a battery thermal event of the traction battery pack.

Abstract: A secondary battery includes: an electrode assembly including a first electrode tab and a second electrode tab at a top portion; a first terminal electrically connected to the first electrode tab of the electrode assembly; a case accommodating the electrode assembly and a portion of the first terminal and including a safety vent at a bottom portion; a side retainer between a side of the case and a side of the electrode assembly; and a cap plate sealing a top opening of the case, and the side retainer includes a gas movement passage extending in a third direction, which is a longitudinal direction of the case.

Abstract: Electrochemical cells and batteries including a polymeric support system in lieu of a conventional, metal-based structures. The polymer support system provides mechanical strength and mechanical flexibility to the electrochemical cells in a manner that is advantageously greater than what is provided by conventional structures, in spite of the fact that the polymer support system contributes far less to the overall weight of the electrochemical cells. The polymer support system may be present in an interior volume of an electrochemical cell, e.g., in the form of a continuous polymeric network penetrating various components of the electrochemical cell. The penetrating structures may include the anode and cathode current collectors, and any/all components therebetween. Additionally or alternatively, the polymer support system may include various forms of external support structures, chemical anchors, coatings and/or casings of the electrochemical cell.

Abstract: The present disclosure provides a low-internal-resistance ceramic-coated separator, a preparation method thereof, and a lithium battery. The low-internal-resistance ceramic-coated separator of the present disclosure includes a polymer base film, and a ceramic layer coated on one or two sides of the polymer base film. The ceramic layer adopts low-sodium boehmite and does not contain sodium carboxymethyl cellulose (CMC). A sodium content of the ceramic layer is less than 1000 ppm, so that a Gurley increase value of the separator is significantly lowered. When applied to the lithium battery, the ceramic layer can greatly reduce an internal resistance of a cell, thereby improving the power performance and discharge efficiency of the battery.

Abstract: Problem: The invention provides a separator for a lithium-ion secondary battery exhibiting excellent strength, wettability with nonaqueous electrolyte solutions, voltage endurance and cycle characteristics in lithium-ion secondary batteries, and a method of increasing the puncture depth of the separator. Solution: A separator for a lithium-ion secondary battery is formed of a microporous film comprising a polyolefin resin (A) as a major component, and a resin (B), at least portions of the surfaces of the micropores in the microporous film being coated with resin (B).

Abstract: Provided is a multilayered porous membrane that comprises a porous membrane containing polyolefin resin as the main component thereof, and that comprises a porous layer layered on at least one surface of the porous membrane and containing inorganic particles and a binder polymer. The total thickness of the porous layer is 0.5-3.0 ?m; the number of pores in the porous layer having an area for the individual pore of at least 0.001 ?m2 is 65-180 per 10 ?m2 of the field of observation; of the pores in the porous layer that have an area of at least 0.001 ?m2, the proportion therein of pores in the range from 0.001 ?m2 to 0.05 ?m2 is at least 90%; the proportion taken up by the inorganic particles in the porous layer is from 90-99 mass %; and the aspect ratio of the inorganic particles is from 1.0-3.0.

Abstract: The present disclosure relates to a secondary solid-state battery. This battery includes a current collector, comprising a poly 3,4-ethylenedioxythiphene polystyrene sulfonate (PEDOT-PSS) layer, which is in direct areal contact with a negative electrode. The battery also includes a positive electrode and a solid electrolyte separator between the positive and negative electrodes. The PEDOT-PSS layer can compress and expand in response to the expansion and contraction of the negative electrode. In some embodiments, the current collector may include a carrier film onto which the PEDOT-PSS layer is coated. A cell stack of multiple assemblies further comprises the positive electrode, solid electrolyte separator, negative electrode, and current collector with some adjacent pairs separated by carbon fiber papers.

Abstract: A power storage cell includes: an electrode assembly. The electrode assembly includes a plurality of positive electrodes and a plurality of negative electrodes disposed side by side in a thickness direction, and a separator. The electrode assembly has a shape longer in a width direction. The electrode assembly includes an upper portion, a bottom portion, a first end portion, and a second end portion. A first welding portion is formed in the first end portion. A second welding portion is formed in the second end portion. A third welding portion in contact with the first welding portion and a fourth welding portion in contact with the second welding portion are formed in the bottom portion. The third welding portion and the fourth welding portion are disposed at an interval with a central portion of the bottom portion being interposed between the third welding portion and the fourth welding portion.

Abstract: A secondary battery includes an electrode assembly, a tubular member, a pair of sealing bodies, a first external terminal, a second external terminal, and a spacer disposed inside the tubular member, wherein the electrode assembly has a first end portion located on one side in a direction parallel to the cylindrical axis direction and a second end portion located on the other side in the parallel direction, and the first end portion is provided with one or more first current collector tabs electrically connected to the first external terminal, and the second end portion is provided with one or more second current collector tabs electrically connected to the second external terminal, and the spacer includes a first member provided between the one sealer and the first end portion, and a second member provided between the other sealer and the second end portion.