Abstract: An energy storage apparatus includes at least one battery rack having at least two battery packs; a container configured to accommodate the at least one battery rack; and an air conditioner provided with a coolant supply part, which includes at least two blowout units respectively having a nozzle with a discharge hole through which a coolant is discharged and configured to individually switch a discharge direction of the coolant, toward any, one of the at least two battery packs and individually increase or decrease a discharge amount of the coolant and a control unit configured to adjust the discharge direction and the discharge amount of the coolant of each of the at least two blowout units, and a coolant suction part configured to suck a heated coolant inside the container.

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly comprises electrode units stacked in an axial direction of the accommodating cavity. The cap assembly comprises a cap plate and a vent piece, the cap plate is connected with the case and positioned at a side of the electrode assembly in the axial direction. The cap plate is provided with a through-hole, and the vent piece covers the through-hole. The cap plate has a first inner surface, the vent piece has a second inner surface, and a distance between the first inner surface and the electrode assembly is larger than a distance between the second inner surface and the electrode assembly.

Abstract: This disclosure provides a battery, an electric device, a manufacturing method and a manufacturing system for the battery. The battery includes a battery module, a casing, and a flow guide member. The battery module includes an explosion-proof assembly. The casing accommodates the battery module. The casing includes a gas discharge passage. The gas discharge passage includes a gas inlet and a gas outlet. The flow guide member is disposed inside the casing and shields the explosion-proof assembly to form a gas guide passage. The gas guide passage is in communication with the gas inlet, for guiding gas generated by the battery module to an exterior of the casing through the gas outlet after the explosion-proof assembly is destroyed. This disclosure intends to solve the technical problem of use safety of the battery being seriously affected due to the battery being prone to catching fire quickly and then exploding.

Abstract: A battery pack includes a battery block including battery cells connected to one another and a case accommodating the battery block. Each battery cell includes a discharge valve on an end surface of the cell which is configured to open when an internal pressure exceeds a predetermined pressure. The battery cells are arranged on a straight line such that respective end surfaces of the calls face each other. The battery block has a discharge gap between the end surfaces of the cells facing each other which is configured to guide exhaust gas from the discharge valve The case includes lower case, an upper case, a heat dissipation plate arranged in lower case and between the lower case and battery block, and a bendable heat-resistant cover protruding from a side edge of the heat dissipation plate and arranged at a position covering an opening of discharge gap.

Abstract: A power storage module includes: a plurality of power storage devices arranged in a first direction; and a separator provided between two adjacent power storage devices and insulating the two power storage devices from each other. The power storage device includes an exterior can that have an opening, a sealing plate that blocks the opening, and a joint part between the exterior can and the sealing plate. The separator includes a contact area that abuts a surface of the exterior can facing the first direction and a separation area that overlaps the joint part as viewed in the first direction and concaved with respect to the contact area in a direction away from the exterior can.

Abstract: A battery cell including a case and an electrode assembly. The case having an accommodation portion in which the electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof. An electrode tab of the electrode assembly is electrically connected to an electrode lead that protrudes out of the case through the sealing portion. A lead film is located at a portion corresponding to the sealing portion in at least one of an upper portion or a lower portion of the electrode lead. The lead film has a dented portion recessed in an outer direction of the case and that is open toward the inside of the case. The sealing portion has an indented sealing portion that does not overlap with at least a part of the gas discharge portion on a plane.

Abstract: The present invention discloses an electrochemical cell design that safely discharges after cell venting. The cell includes a housing and a lid assembly connected to the housing via a vent. The housing houses an electrode assembly with a first electrode separated from a second electrode by a separator. The first electrode is electrically connected to the housing, and the second electrode is electrically connected to the lid assembly structure. The cell has a non-venting configuration characterized by the vent connecting the lid assembly to the housing such that the internal pressure is maintained at a pressure above atmospheric pressure. A venting configuration is characterized by (A) the vent releasing the housing from the lid assembly when a predetermined internal pressure is exceeded; (B) venting the internal pressure; and (C) the venting dislodging the lid assembly such that it makes electrical contact with the housing, thus discharging the cell.

Abstract: A cover assembly includes a cover plate including a gas vent, a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent, and a sealing part. The gas exhaust valve includes a metal sheet and a fixing part. The metal sheet seals the gas vent. The sealing part is arranged between the metal sheet and the cover plate for sealing a gap between the metal sheet and the cover plate. The fixing part is connected to the metal sheet. The metal sheet is fixed to the cover plate by the fixing part. The fixing part is configured to deform in response to an increase in temperature in such a manner that the metal sheet gets out of the state of sealing the gas vent.

Abstract: A pressure equalization device for a housing has a base body and a closure element with a flow path between them being open in a normal operating state of the pressure equalization device. A flow opening in the flow path is spanned by a membrane. An emergency venting spike projects from the closure element toward the membrane. The pressure equalization device transitions after emergency venting into an emergency operating state in which the closure element gas-tightly closes the base body. A housing with such a pressure equalization device is provided. In a method for pressure equalization with such a pressure equalization device between a housing interior and an environment, gas exchange between interior and environment is performed through the membrane and the flow path between closure element and base body. During emergency venting, the membrane is destroyed by the emergency venting spike. The closure element then closes the base body.

Abstract: The present disclosure relates to a battery pack and transportation vehicle, wherein the battery pack includes: a box assembly; a restraint assembly disposed within the box assembly, wherein the restraint assembly is internally provided with an accommodating cavity, a first exhaust passage is provided between the restraint assembly and the box assembly, and the restraint assembly is provided with a communication hole which communicates the accommodating cavity with the first exhaust passage; and a battery module disposed within the accommodating cavity.

Abstract: The present disclosure relates to a busbar for connecting battery cells, a battery pack, and a method for manufacturing the battery pack, and more particularly, to a busbar for electrically connecting a plurality of battery cells, a battery pack and a method for manufacturing the battery pack. In accordance with an exemplary embodiment, a battery pack includes: a plurality of battery cells; and a busbar for electrically connecting the plurality of battery cells, wherein the busbar includes: a lead part extending onto each of electrode terminals of the battery cells; a first welding protrusion formed on the lead part and joined to each of the electrode terminals; and a second welding protrusion formed on the lead part and disposed to be spaced apart from each of the electrode terminals.

Abstract: A secondary battery includes: an electrode assembly; a case including an opening and accommodating the electrode assembly; a cap assembly sealing the opening of the case and having a valve hole formed therein; and a valve vertically movably installed in the valve hole and selectively openable and closeable, to allow an internal gas to be discharged.

Abstract: The present application provides a battery cell and a manufacturing method and manufacturing system, a battery, and a power consumption apparatus. The battery cell includes an electrode assembly, a housing, a pressure relief mechanism and a cover assembly. The housing is provided with an accommodating space for accommodating the electrode assembly, and the housing includes a first side plate located on a side in a first direction; the pressure relief mechanism is disposed on the first side plate; and the cover assembly is configured for sealing the housing, where an inner surface of the first side plate of the housing is provided with a first flow channel extending along the inner surface, and the first flow channel is configured to guide a gas in the accommodating space to the pressure relief mechanism so that the pressure relief mechanism is actuated when a pressure reaches a threshold, and relieve the pressure.

Abstract: A conductive roller includes: a core member including an outer surface along and about an axial line thereof; and a surface layer arranged along the outer surface of the core member. The surface layer includes a conductive portion formed of a conductive resin composition, and a surface roughness imparting material in a form of particles dispersed in the conductive portion. An average particle size of the surface roughness imparting material is in a range of 6 micrometers or greater and 10 micrometers or less. The number of particles of the surface roughness imparting material per unit area of the surface layer is in a range of 1.0×104 particles per mm2 or greater and 2.0×106 particles per mm2 or less. An average thickness of the surface layer is in a range of 3.0 micrometers or greater and 15.0 micrometers or less.

Abstract: An insulating plate for a secondary battery includes a wound electrode group, an electrolyte, a cylindrical battery case that houses the electrode group and the electrolyte, and a sealing body that seals an opening of the battery case and includes a discharge valve. The insulating plate is disposed between the electrode group and the sealing body and has a disk shape with a thickness T of 0.1 mm or more. The insulating plate has a first hole formed centrally therein and at least one second hole formed around the first hole so as to extend along the outer periphery of the disk shape. The ratio (=T/D) of the thickness T to a diameter D of the insulating plate is 0.016 or less, and the insulating plate has an opening ratio of 36% or less.

Abstract: A kitchen appliance, including at least one kitchen appliance base and at least one preparation module is provided. The kitchen appliance base includes at least one electrical interface and at least one receiving region. The preparation module includes at least one electrical counter-interface for electrical contacting with the electrical interface. The electrical interface includes at least two power contacts and at least one auxiliary contact. The electrical counter-interface includes at least two power counter-contacts and at least one auxiliary counter-contact. In the kitchen appliance, the insertion forces for the electrical contacting for the user are reduced, are realized by the power contacts and the power counter-contacts, as well as the auxiliary contact and the auxiliary counter-contact being designed and configured such that the power contacts are electrically contacted with the power counter-contacts at a different point in time than is the auxiliary contact with the auxiliary counter-contact.

Abstract: The present invention provides a battery module which includes: a battery stack formed by stacking a plurality of battery cells on each other, each of which includes electrode tabs; a first case unit including a bottom section which surrounds one side of the battery stack and a pair of first sidewalls located on both sides of the battery stack in a direction in which battery cells are stacked; and a second case unit including a top section which surrounds the other side of the battery stack and a pair of second sidewalls located on both sides of the battery stack in the direction in which battery cells are stacked, wherein the first sidewall and the second sidewall are located on both sides of the battery stack in the direction in which battery cells are stacked, in a state in which at least portions thereof are overlapped with each other.

Abstract: The present disclosure provides an explosion-proof valve core, an explosion-proof valve, and a box body gas tightness detection clamp, including an explosion-proof valve core, a valve body, and sealing rings. The waterproof gas-permeable explosion-proof valve core of the present disclosure timely discharges high-temperature and high-pressure in a box body, which prevents explosion or reduces damage caused by explosion. An inner sealing ring in the explosion-proof valve is fixed through an inner sealing ring groove, so that a problem of poor sealing caused by easy falling and displacement of the inner sealing ring is solved. A metal protective shell is disposed on an outer side of an explosion-proof valve spring, a problem that the spring is blocked by battery core jets to weaken pressure relief performance when working is solved. The present disclosure further provides the box body gas tightness detection clamp, which is simple to use and operate.

Abstract: Embodiments of the present application provide a battery, a power consumption device, a method and a device for producing the battery. The battery includes: a battery cell, including a pressure relief mechanism, wherein the pressure relief mechanism is disposed on a first wall of the battery cell; a thermal management component, wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is provided with a pressure relief hole opposite to the pressure relief mechanism; and a baffle configured to cover a part of the pressure relief hole, so that when the pressure relief mechanism is actuated, a discharge direction of the emissions entering the pressure relief hole is changed. The battery, the power consumption device, the method and the device for producing the battery provided in the embodiments of the present application can enhance safety of batteries.

Abstract: A rechargeable lithium-ion button cell battery having a sealed housing includes a top flat plate and a round or oval cup sealed by laser at the rim of top plate whereas connecting the opening end of the cup sidewall. The top plate has a centered sandwiched structure including two outer plates at upper and lower position, that clamping one inner pin-like conductive plate by its flange, insulated by a gasket. The upper plate of the outer plates has an asymmetric shape to its center line, which allows asymmetric sealing force applied on the inner pin-like plate flange to act as a safety vent. Inside the sealed housing the anode and cathode electrodes are either spiral wound or stacked with separator to be a round or oval roll, one electrode is connected to the cup, the other electrode is connected to the inner pin-like conductive plate of the top plate.

Abstract: Batteries and other devices heat during operation and must be cooled to optimal temperatures. Our SuCCoR method differs from the previous thermal management systems by keeping batteries and devices continuously immersed in a coolant bath kept in a sealed enclosure at its supercritical fluid (SCF) and/or a neighboring thermodynamic state with superb heat conducting properties. While many previous inventions circulated coolants, and some kept devices sealed in a fluid, our invention differs by its use of SCF coolants with no distinct liquid and gas phases. Such a single-phase coolant prevents abrupt loss of cooling due to “vapor lock” formation. Also, using an outer jacketed vessel and a network of heat conducting pipes containing high thermal conductivity and high heat capacity coolants, and deploying cooling fins will enhance efficiency and accelerate heat removal. Our system avoids complex pumps to circulate the coolants, and is lighter and cheaper.

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The housing has an accommodating chamber, the accommodating chamber having an opening, and the electrode assembly being accommodated in the accommodating chamber. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate, a first electrode terminal and a second electrode terminal, the top cover plate being connected to the housing and located on a side of the electrode assembly in the axial direction, and the first electrode terminal and the second electrode terminal both protruding from the top cover plate and being electrically connected to the electrode assembly.

Abstract: A venting assembly for battery ejecta opposite an egress, wherein the venting assembly comprises a plurality of battery packs configured to power the electric aircraft, a plurality of vents wherein each vent of the plurality of vents is attached to each battery pack of the plurality of battery packs, and at least an outlet in fluidic communication with the plurality of vents, wherein the at least an outlet is located on an opposite side of the electric aircraft as an egress.

Abstract: A pressure balancing device comprises a mounting seat, a breathable film and a drying component. The mounting seat comprises a mounting seat housing and a support portion connected to the mounting seat housing. A fluid channel is formed in the mounting seat housing, the support portion is disposed in the fluid channel, and the fluid channel is capable of fluidly communicating an interior space of a component to be depressurized with the external environment. The breathable film covers on the fluid channel. The drying component is disposed on the support portion and is located between the support portion and the breathable film, and the drying component is configured to absorb moisture entering the fluid channel. In the present disclosure, the drying component is provided inside of the breathable film of the pressure balancing device, and water vapor entering the pressure balancing device is absorbed by the drying component.

Abstract: Embodiments described herein relate generally to systems and methods for improving safety features in electrochemical cells. In particular, the systems and methods as described herein can solve safety issues concerning gas generation in electrochemical cells.

Abstract: Provided is a rectangular secondary battery with improved rigidity against vibrations and impacts. A rectangular secondary battery of the present invention includes: a flat-shaped electrode group; a current-collecting plate electrically connected to the electrode group; a battery case accommodating the current-collecting plate and the electrode group; a battery cover that closes an opening of the battery case; an electrode terminal penetrating through the battery cover, the electrode terminal being connected to the current-collecting plate via a connecting member; and a gasket that is inserted between the electrode terminal and the battery cover for insulating and sealing. An insulator is disposed between the current-collecting plate and the battery cover, the battery cover includes a battery cover side fixing part that fixes the insulator, and the insulator includes a current-collecting plate side fixing part that fixes the current-collecting plate.

Abstract: A winding-type battery includes a battery case, a power generating element, a cap for blocking an opening of the battery case, and a gasket for insulating the battery case from the cap. The power generating element includes a first electrode, a second electrode, a separator interposed between them, and an electrolyte. The first electrode and the second electrode are wound via the separator to form an electrode group, and the first electrode is connected to the cap via a first current collecting lead, and the second electrode is connected to the battery case via a second current collecting lead. A groove is formed near the opening end of the battery case. The gasket includes: an annular seal portion interposed between a rim of the cap and the region from the groove to the end; and a tubular portion that is integrated with the seal portion, and is disposed closer to the electrode group than the seal portion is. The first current collecting lead is connected to the cap through a hollow in the tubular portion.

Abstract: An insulating plate for a secondary battery includes a wound electrode group, an electrolyte, a cylindrical battery case that houses the electrode group and the electrolyte, and a sealing body that seals an opening of the battery case and includes a discharge valve. The insulating plate is disposed between the electrode group and the sealing body and has a disk shape with a thickness T of 0.1 mm or more. The insulating plate has a first hole formed centrally therein and at least one second hole formed around the first hole so as to extend along the outer periphery of the disk shape. The ratio (=T/D) of the thickness T to a diameter D of the insulating plate is 0.016 or less, and the insulating plate has an opening ratio of 36% or less.

Abstract: The present disclosure provides a power battery pack having a heat superconducting heat exchanger, and a power battery pack system. The power battery pack includes a heat superconducting heat exchanger and a plurality of battery cells. The heat superconducting heat exchanger includes a heat radiator, a heater, and a plurality of heat superconducting plates arranged at intervals in parallel. The heater is located at one side of the heat radiator. The heat superconducting plates are located between the heat radiator and the heater, a heat superconducting pipeline is formed inside each heat superconducting plate, each heat superconducting pipeline is a closed pipeline, and each heat superconducting pipeline is filled with a heat transfer medium. The battery cells are located between the heat radiator and the heater, and each battery cell is in contact with the corresponding heat superconducting plate.

Abstract: A battery cover plate assembly includes a cover plate, an electrode terminal, a current interrupt structure, and an arc extinguishing portion. The electrode terminal is disposed on the cover plate and includes an electrode inner terminal and an electrode outer terminal. The electrode inner terminal and the electrode outer terminal are electrically connected through the current interrupt structure. The current interrupt structure is capable of disrupting the electrical connection between the electrode inner terminal and the electrode outer terminal under the action of a gas pressure. The arc extinguishing portion is configured to reduce an electric arc generated when the current interrupt structure disrupts the electrical connection between the electrode inner terminal and the electrode outer terminal.

Abstract: A method for manufacturing a cylindrical three-electrode cell, according to the present invention, can comprise the steps of: preparing a cylindrical can in which an electrode assembly is accommodated; manufacturing a reference electrode assembly by coupling lithium metal to one side of a reference electrode lead; separating a cap assembly coupled to the upper end of the cylindrical can; inserting the reference electrode assembly such that the lithium metal is inserted in the electrode assembly and the one side of the reference electrode lead is withdrawn to the outside of the cylindrical can; coupling the separated cap assembly to the opened upper end of the cylindrical can; mounting a holder so that same encompasses the side of the cap assembly and the end part of the side of the cylindrical can; and injecting an adhesive into the holder, and then curing same.

Abstract: A secondary battery includes a rectangular exterior body having an opening and containing a first electrode assembly and a second electrode assembly, a sealing plate sealing the opening, and a positive-electrode current collector. The sealing plate has an electrolytic solution introduction hole. The first electrode assembly includes a first insulating sheet on an outermost surface thereof adjacent to the second electrode assembly. The second electrode assembly includes a second insulating sheet on an outermost surface thereof adjacent to the first electrode assembly. A first tape is attached to both an outermost surface of a first positive-electrode tab group and the first insulating sheet. A second tape is attached to both an outermost surface of a second positive-electrode tab group and the second insulating sheet. At least one of the first tape and the second tape is located to face the electrolytic solution introduction hole.

Abstract: A starter module adapter for a vehicle or other equipment including a starter module and a housing assembly having a pair of terminals. The starter module adapter may include a metal receiver functioning as an electrical connector defining a receptacle for receiving the starter module. The exterior dimensions of the housing assembly may be the same as the exterior dimensions of a standard battery.

Abstract: A lead-acid battery is provided with a lid. A communication chamber is formed inside the lid. In the communication chamber, a first distance between an inner wall and a vent hole in a sidewall is shorter than a second distance between the inner wall and an exhaust hole, and a tip of the inner wall is formed below the vent hole in a direction opposite to the first direction.

Abstract: A cylindrical lithium secondary battery according to the present invention can reduce gas explosion by preventing gas concentration from being concentrated only on the upper top cap vent by increasing the gas spouting passage through which the inner gas of the can is spouted by forming a rupture portion of a material different from that of the can member on a part of the cylindrical can member, and when the inside or outside of the battery is exposed to a high temperature, by making, a shape-based alloy member, which causes cracking of the can member by deformation, included a part of the can member, the gas is discharged through the can vent by the cracking of the can member to prevent explosion before the tap cap safety vent operates by the internal air pressure, and ignition that may be caused by heating by internal or external heat may be prevented.

Abstract: A high-voltage battery for a motor vehicle includes at least one battery module including a cell block with stacked battery cells, wherein the battery cells are embodied as solid-body cells, the internal resistance of which decreases as the temperature rises, a battery housing having a receiving space for receiving the at least one battery module, and a heat-insulating holding device for holding the at least one battery module in the receiving space. The heat-insulating holding device is designed to minimize heat exchange between the at least one battery module and the battery housing for preventing cooling of the battery cells. A motor vehicle with the high-voltage battery is also provided.

Abstract: An energy storage apparatus includes one or more energy storage devices and an outer housing that houses the one or more energy storage devices. The outer housing includes an opening that allows communication between an interior and an exterior of the outer housing. The opening is sealed by a first pressure adjuster and a second pressure adjuster arranged complementary to each other. The first pressure adjuster allows passage of gas and prohibits passage of liquid. The second pressure adjuster prohibits passage of the gas and the liquid, and releases an internal pressure in the interior of the outer housing when the internal pressure exceeds a predetermined pressure.

Abstract: Disclosed is a battery module, which includes: a plurality of battery cells stacked on one another; a cell housing configured to accommodate the plurality of battery cells; and a cover bus bar configured to cover an entire upper side of the cell housing and including electrode connection layers. The cover bus bar may be electrically connected to electrodes of the plurality of battery cells through the electrode connection layers. The electrode connection layers may be arranged in a layered structure.

Abstract: A secondary battery according to the present invention including a battery case with an accommodation part accommodating an electrode assembly and an electrolyte, a fluid inlet/outlet port provided in the battery case to provide a moving passage through which a fluid is movable so that discharge of an inner gas and reinjection of the electrolyte are enabled, a gas discharge part restricting the discharge of the inner gas passing through the fluid inlet/outlet port, and an electrolyte reinjection part provided to reinject the electrolyte through the fluid inlet/outlet port.

Abstract: A power storage module includes a laminate constituted of a plurality of laminated bipolar electrodes, each of the bipolar electrodes including an electrode plate, a positive electrode provided on one surface of the electrode plate, and a negative electrode provided on the other surface of the electrode plate, wherein a plurality of internal spaces is formed between the bipolar electrodes adjacent to each other in the laminate; a frame body holding an edge portion of the electrode plate and provided with an opening communicating with at least one of the plurality of internal spaces; and a pressure regulating valve attached to the frame body.

Abstract: The present disclosure provides a cell and a battery. The cell includes a cell body and a packaging pouch configured to accommodate the cell body therein. The packaging pouch includes a seal portion, the seal portion includes a sealed area, and the sealed area defines a cavity therein. According to embodiments of the present disclosure, the seal strength of the seal portion of the cell may be increased significantly, and the reliability and safety of the cell may be improved.

Abstract: A hydrogen system includes: a generator which generates hydrogen-containing gas; a storage which stores the hydrogen-containing gas generated by the generator; a first gas passage which connects the generator and the storage; a housing which houses the generator, the storage and the first gas passage; a second gas passage in which the hydrogen-containing gas discharged from the first gas passage to an outside of the housing flows; a first valve provided to the second gas passage; a third gas passage in which the hydrogen-containing gas discharged from the storage to the outside of the housing flows; a second valve provided to the third gas passage; and a controller which opens at least one of the first valve and the second valve.

Abstract: The present disclosure includes a battery module having a housing with a first end (having a cell receptacle region) and a second end opposite to the first end. The battery module includes a stack of electrochemical cells inserted through the cell receptacle region of the housing, disposed between the first end and the second end of the housing, and having terminal ends of all the electrochemical cells of the stack aligned in a planar area. The battery module includes a bus bar carrier disposed over the stack of electrochemical cells and within the cell receptacle region of the housing. The bus bar carrier includes bus bars disposed thereon that interface with the terminal ends. The battery module includes a layer of thermal epoxy disposed between the second end of the housing and a bottom side of the stack of electrochemical cells.

Abstract: The present disclosure pertains to motion-generating pumps, energy storage devices including such motion-generating pumps, and methods of making and using the same for the desulfation of lead-acid batteries. The energy storage device includes a battery casing defining a plurality of chambers, each of the plurality of chambers may include one or more electroactive plates disposed therein and an electrolyte disposed so as to surround the one or more electroactive plates. The energy storage device further includes one or more circulating systems configured to agitate the electrolyte in each of the plurality of chambers. A method for desulfation in a lead-acid battery may include using one or more circulating systems to circulate an electrolyte so as to prevent precipitation.

Abstract: The battery pack includes a cell module assembly that includes battery cells arranged to be stacked, a cell case accommodating the battery cells, and first positive and negative electrode bus bars electrically connected to the battery cells. The battery pack further includes a battery management system (BMS) assembly that includes a BMS circuit board, a current sensor unit vertically disposed at an edge of the BMS circuit board, and a BMS housing that supports the BMS circuit board. Further, the battery pack includes a pack cover that includes positive and negative electrode terminals and second positive and negative electrode bus bars electrically connected to the positive and negative electrode terminals. The pack cover is configured to cover an upper portion of the BMS housing, and the first negative electrode bus bar and the second negative electrode bus bar respectively have one end vertically connected to the current sensor unit.

Abstract: The present application provides a battery pack. The battery pack includes a box, the box being configured as a cavity structure; an exhaust channel arranged at the bottom of the box; and a plurality of battery cells, the plurality of battery cells being stacked and housed in the cavity structure of the box, and the plurality of battery cells being located on an end face of the exhaust channel facing away from the bottom of the box, and an end face of each of the battery cells facing the exhaust channel being provided with an explosion-proof valve, where a structural layer of the exhaust channel facing the explosion-proof valve is provided with a weakened zone, and when thermal runaway occurs in any battery cell, a gas in the battery cell is capable of being collected into the exhaust channel via the weakened zone and discharged.

Abstract: A battery ejection system is disclosed. The battery ejection system comprises a pressure vessel, a battery submodule positioned at least partway in the pressure vessel and configured to release gas into the pressure vessel, and a seal of the pressure vessel configured to release in the event a pressure level in the pressure vessel exceeds a threshold pressure level. The battery submodule is configured to be ejected from an electrical connection in the event the seal is released.

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The battery module includes a plurality of secondary batteries arranged in sequence. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The electrode assembly is accommodated in an accommodating chamber of the housing. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate and an insulating member arranged on an inner side of the top cover plate, the top cover plate being connected to the housing, the insulating member being located on a side of the electrode assembly in the axial direction. A first buffer gap is provided between the insulating member and the top cover plate.

Abstract: A hydrogen production apparatus includes a water electrolysis unit, a storage unit, a supply unit, and an electrical equipment unit. A first ventilation flow path causes air to flow through an electrical equipment chamber and a storage chamber, which is formed by at least one of a water electrolysis chamber, a storage chamber, and a supply chamber. A second ventilation flow path causes air to flow through at least one of the water electrolysis chamber, the storage chamber, and the supply chamber that is not the storage chamber. The electrical equipment chamber is positioned farthest upstream in the first ventilation flow path, and the first ventilation flow path and the second ventilation flow path are separated from each other.

Abstract: A system comprising one or more battery modules mounted in a rack assembly has a structure which defines a cooling air pathway for flowing cooling air across the side and/or bottom of each battery module thereby cooling the battery module, or alternatively, across the energy calls in the battery module. Further, the system has a structure which defines a thermal runaway gas pathway for flowing thermal runaway gases from a battery module out of the system. The system structure is configured to ensure that the cooling air pathway and thermal runaway gas pathway are physically separated, thereby minimizing the risk of the thermal runaway gas substantially mixing with cooling air thereby potentially resulting in a spontaneous ignition and an explosion.