Abstract: A prismatic secondary battery includes an electrode assembly having a cathode, an anode, and a separator mounted in a prismatic battery case in a sealed state, the battery case including a hexahedral case body open at the top thereof, the hexahedral case body being made of a metal material, and a case cap coupled to the open top of the case body, the case cap having an electrode terminal, wherein the case body is provided at a region exhibiting a stress distribution equivalent to 40% or less of the maximum stress of the case in a high pressure state with a line-shaped safety groove configured to be ruptured when high pressure occurs in the battery, and the safety groove is configured such that a residual thickness of the case body is decreased toward the middle from opposite ends of the safety groove in the longitudinal direction.

Abstract: A battery module includes a plurality of battery cells, at least one barrier between respective adjacent battery cells of the plurality of battery cells, and a housing. The plurality of battery cells are aligned along a first direction. At least one barrier is between respective adjacent battery cells of the plurality of battery cells. The housing accommodates the plurality of battery cells and the barriers therein. In the battery module, each barrier between respective adjacent battery cells includes a base parallel to a wide surface of the respective adjacent battery cells, at least one spacer protruding in a direction parallel to the first direction and extending toward the wide surface of a respective adjacent battery cell from the base, and at least one support extending further from the base than the at least one spacer.

Abstract: A vehicle is provided including a battery module with front and rear battery cell arrays arranged generally parallel to and spaced apart from one another. The battery module includes a cover having an inlet port proximate to the front battery cell array and arranged obliquely thereto. A blower unit is configured to draw air through the inlet port such that a first portion of the air travels into the front battery cell array. A tray cooperates with the front battery cell array to define a passageway configured to direct a second portion of the air underneath the front battery cell array. The tray also defines a ramp underneath, and extending substantially a length of, the rear battery cell array and is configured to direct the second portion of air into the rear array.

Abstract: Disclosed herein is a cap assembly disposed at an open upper end of a cylindrical container of a battery in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, wherein an electrode lead of the jelly roll is electrically connected to the lower end of a safety vent having notches, which are ruptured to discharge high pressure gas when high pressure is generated in the battery, and a safety element to interrupt current at a predetermined temperature is provided between the safety vent and the electrode lead.

Abstract: A cell housing, such as for a backpack battery pack, includes a first wall, a second wall, and a cell retention structure there-between, wherein the cell retention structure is configured to retain battery cells arranged in a matrix of rows and columns such that the longitudinal axis of each battery cell is substantially parallel to the longitudinal axes of the other battery cells. A plurality of connectors are located on the exterior of the cell housing and are electrically connected to the battery cells through openings in the first and second walls of the cell housing. The connectors electrically connect the cells in each row in parallel and the cells in each column in series. The connectors may comprise unitary connectors that electrically connect the positive terminals of at least two cells of one row of cells to each other and also to the negative terminals of at least two cells of another row of cells.

Abstract: The case 20 housing a plurality of cells 100 is divided, by a circuit board 30 provided at the same sides of the cells 100, into a housing space 50 housing the cells 100 and an exhaust duct 60 for releasing a gas from the vents 8a of the cells 100 to outside the case 20. The vents 8a of the cells 100 communicate with the exhaust duct 60 through openings 30a formed in the flat plate 30. The exhaust duct 60 is divided into a first space 61 and a second space 62 by a partition 40 provided between the flat plate 30 and an external plate 21 of the case 20. The first space 61 communicates with the second space 62 through through holes 40a formed in the partition 40.

Abstract: An apparatus, system, and method are disclosed for battery venting containment that include a battery enclosure configured to contain emissions from one or more battery cells within the enclosure upon a rupture of a case of the one or more battery cells. The battery enclosure includes a first side of the battery enclosure configured to expand upon rupture of the case of the one or more battery cells within the enclosure and a second side of the battery enclosure configured to be rigid.

Abstract: A cooling plate for a battery pack with a plurality of battery cells is provided. The cooling plate includes a cooling fin with a substantially planar surface and a perimeter. The cooling plate includes a frame abutting the cooling fin and forming a seal with the cooling fin adjacent the perimeter of the same. The frame and the cooling fin define at least one fluid inlet, at least one fluid outlet, and a flow channel therebetween. The at least one fluid inlet and the at least one fluid outlet are disposed through the seal and are in fluid communication with the flow channel. The flow channel is disposed adjacent the perimeter and in heat transfer communication with the substantially planar surface of the cooling fin. A battery pack with the cooling plate, and a method for controlling a temperature of the battery pack, are also provided.

Abstract: The invention relates to a venting device (1) for an electrochemical battery (90). The venting device comprises at least one inlet opening (2) for receiving gases venting from the battery (90), at least one outlet opening (3) for venting the gases received from the battery (90), and at least one flame arrester element (4). The inlet opening (2) is in communication with the outlet opening (3) via the flame arrester element (4). An explosion chamber (5, 6) is located within the venting device (1) on the side of the flame arrester element (4) which is directed to the outlet opening (3). The explosion chamber (5, 6) is arranged for developing and temporarily storing an explosive mixture of the gases received from the battery (90) and oxygen from the ambient air, which explodes in case a flame occurs within the explosion chamber (5, 6), thereby blowing off the flame.

Abstract: A battery module includes a first battery cell, a first barrier, and a second barrier, the first battery cell being between the first barrier and the second barrier, wherein a first opening is in flow communication with a first space defined between a first side of the first battery cell and a first side portion formed by at least one of the first and second barriers, the first space being in flow communication with a second space defined between a second side of the first battery cell and a second side portion formed by at least one of the first and second barriers.

Abstract: A battery cooling system has a case that forms an internal space surrounded by a plurality of walls to accommodate a plurality of battery cells, a blower accommodated in the case that circulates a fluid for cooling the plurality of battery cells inside of the case, and a passage-along-wall forming member. The passage-along-wall forming member forms passage-along-walls along with and between side walls among the plurality of walls that forms the case. The passage-along-wall forming member has an inflow part where the fluid flowing out of the blower before contacting the battery cells passes when flowing into the passage-along-wall, and an outflow part where the fluid flowed in from the inflow part into the passage-along-wall passes when flowing out from the passage-along-wall.

Abstract: A cover 1b of a battery pack case has an intake port and an exhaust port 31. With in the battery pack case, battery accommodation sections respectively accommodate battery modules and a junction box accommodation section. A supply flow path and an exhaust flow path are provided at ends of each of the battery accommodation section. A guide is provided between the cover and the battery modules accommodated in the battery accommodation portions. The guide and a lower surface of the cover define a distribution flow path. The air introduced from the intake port flows to the exhaust port through the distribution flow path, supply flow paths, clearances between battery cells, exhaust flow paths, and exhaust port. The battery cells are efficiently cooled.

Abstract: A battery pack includes battery stacks each formed of battery cells stacked on one another and bus bars disposed at a first end side of the battery stack for connection between electrode terminals of the battery cells, a battery pack case housing the battery stacks, a fan device disposed inside the battery pack case for circulating fluid within the battery pack case and a spacer disposed between respective adjacent battery cells to guide the fluid to flow in a direction from the first end side to a second end side opposite to the first end side along lateral sides of the battery cells. Each of the battery cells includes a battery cell case as an outer shell thereof that includes an exposed portion having a predetermined exposed length by which the battery cell case projects from an end at the first end side of the spacer.

Abstract: A vent adapter for a lead-acid battery includes a first side configured to mate with a vent port of the lead-acid battery via a first connector having a first geometry; and a second side in fluid communication with the first side and configured to mate with a vent passage of an automobile via a second connector having a second geometry, wherein the first and second geometries have respective shapes that are different from one another.

Abstract: A vehicle battery pack container is provided. The container includes a base portion having an aperture extending therethrough, a peripheral wall coupled to the base portion, and a cover coupled to the peripheral wall. The container further includes a venting device having a housing and a ball disposed within an interior region of the housing. The housing is coupled to the base portion such that the venting device is in fluid communication with the aperture in the base portion. The ball seals against a sealing tab of the housing at a first operational position to prevent fluids from passing through the venting device into the container. The ball allows gases from the container to flow through the venting device when the ball is at a second operational position.

Abstract: A rechargeable battery pack forms an outlet at a pack cover to discharge a gas and an erupting material erupted from a unit cell. The rechargeable battery pack includes at least one unit cell including a rechargeable battery, and a pack cover covering the unit cell, where the pack cover forms an outlet corresponding to a cap plate side of the unit cell.

Abstract: In a battery pack, a plurality of cells are arranged, the cells each have an outlet through which gas generated in the cell is released in one direction, each two of the cells are arranged as one unit, and the each two of the cells are arranged such that directions of gas released through the outlets of the two cells are opposite to each other.

Abstract: A battery pack temperature control structure is provided for an electric vehicle, and basically includes first and second battery modules, a temperature control unit and an air duct. The first and second battery modules are disposed inside a battery pack case. The second battery module has a lower height than the first battery module. The temperature control unit has an air blowing port for blowing a temperature control air to the first and second battery modules. The air duct is connected to the air blowing port of the temperature control unit, and has an air blowout opening arranged to blow out the temperature control air to a front of the first battery module at a location above the top of the second battery module. The air blowout opening-extends in a vehicle width direction and blows out the temperature control air toward the first battery module.

Abstract: A rechargeable battery includes an electrode assembly having a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode; a case housing the electrode assembly, the case having an opening; a cap assembly including a cap plate coupled to the opening of the case and a vent member on the cap plate adapted to discharge a gas from the case; and a separation member located between the electrode assembly and the cap plate to prevent the electrode assembly from significantly moving toward the cap plate.

Abstract: A battery unit that prevents an expansion of a battery cell, and that can prevent an increase in size of the battery unit or an increase in the number of components. The battery unit includes a box-like battery case that accommodates therein a battery module having a generally rectangular solid shape and including plural sheet-like battery cells stacked flat in a vertical direction of a vehicle body. The battery unit includes: a bottomed box-like casing body that forms a part of the battery case and into which the battery module is accommodated from above the vehicle body; and a fixing plate that abuts on a top surface of the battery module. The battery module is fixed to the casing body with pressure being applied to the battery module from above the vehicle body, by fastening the fixing plate to the casing body.

Abstract: A battery module is provided that includes a plurality of battery cells. Each battery cell can include a vent. A cover encloses the vents, and an insulation member is located between the plurality of battery cells and the cover. The insulation member can include a bent part that sealably engages the cover. The plurality of battery cells can be arranged in a first direction such that the vent of each battery cell is aligned with the vent of an adjacent battery cell. The cover and the insulating member can extend in the first direction to enclose the vents.

Abstract: A battery element (2) includes a positive electrode and a negative electrode stacked via a separator. A collector portion (3) is formed by collectively bonding each of positive electrode plates and negative electrode plates which extend outward from this stacked region. Laminated films (5, 6) are obtained by laminating a thermally-fusible resin layer and a metal layer, and by sealing the battery element (2) and electrolyte by thermally fusing sealing portion (8) at a peripheral edge. A tab (4) is connected to collector portion (3) and extends outward from the laminated films (5, 6). An overlaying member (7) includes a protective region (7d) which protects the laminated films (5, 6) from corners (2c) of the battery element (2), corners (3c) of the collector portion (3) and corners (4c) of the tab (4), and a communication portion (7c) through which electrolyte can pass.

Abstract: A secondary battery includes an electrode assembly comprising a first electrode plate, a second electrode plate, and a separator located between the first electrode plate and the second electrode plate; a case accommodating the electrode assembly; and a cap assembly coupled to the case, wherein the cap assembly comprises a cap plate sealing the case and having a short-circuit hole, an inversion plate in the short-circuit hole of the cap plate, a connection plate covering the short-circuit hole of the cap plate, and an insulation layer on the inversion plate or the connection plate.

Abstract: A battery pack assembly including: an inner pack accommodating a plurality of secondary cells; an outer pack accommodating the inner pack; a first shock absorbing member between a first surface of the inner pack and a first surface of the outer pack, the first shock absorbing member configured to absorb a shock between the inner pack and the outer pack; and a second shock absorbing member between at least a side surface of the inner pack and a side surface of the outer pack among surfaces of the inner pack and the outer pack other than the first surfaces, the second shock absorbing member configured to absorb a shock between the inner pack and the outer pack.

Abstract: An energy storage apparatus includes: one or more energy storage devices; a wiring connection component for connecting first wiring and second wiring, the first wiring being connected to at least one of the one or more energy storage devices, the second wiring being external wiring; and an attachment portion to which the wiring connection component is detachably attached.

Abstract: A battery pack may include a drainage device provided at a bottom portion of the housing case. The drainage device may include a drain hole communicating between the inside and the outside of the housing case, so that water introduced into the housing case is discharged to the outside of the housing case. The drainage device may be disposed between two of the terminal members that are connected to electrodes of the battery cells.

Abstract: A battery module includes a plurality of battery cells aligned in one direction, the plurality of battery cells being adjacent to each other along a first direction, a pair of side plates spaced apart from each other along a second direction perpendicular to the first direction, the plurality of aligned battery cells being positioned between the pair of side plates, and barriers respectively interposed among the plurality of battery cells, each barrier including at least one first fixing portion on a side thereof, the at least one first fixing portion being coupled to a corresponding second fixing portion on a side plate of the pair of side plates.

Abstract: A battery case within which a battery is housed includes a first layer that is made of metal, a second layer that is made of heat insulating material, and a third layer that is made of phase-change heat storage material. The second layer is closer to the battery than the first layer is. The third layer is closer to the battery than the second layer is.

Abstract: A battery case comprises a tray member (20), a cover member (22), a first holding member (24) of a metal arranged to contact a tray flange (32) with its outer circumferential edge portion projecting outward from the tray flange by a predetermined length, a second holding member (26) of a metal arranged to contact a cover flange (36) with its outer circumferential edge portion projecting outward from the cover flange by a predetermined length, and a fastening means (28, 29) fastening the first and second holding members together at a predetermined location outwardly away from the tray and cover flanges.

Abstract: A wet battery package includes a casing defining a receiving space, an electrically insulating liquid received in the receiving space, a battery unit installed in the receiving space, and an electrical power control unit installed in the receiving space and electrically coupled to the batteries. The battery unit includes a plurality of spaced-apart batteries at least a portion of each of which is immersed in the electrically insulating liquid. The electrical power control unit includes two output terminals that are exposed from the casing and that output electricity of the batteries.

Abstract: The present disclosure is directed at a cell carrier, a stack that includes multiple cell carriers, and a method for assembling the stack. The cell carrier has a rigid backing and bus bar supports that are rigidly mounted to the rigid backing. The bus bar supports have sockets positioned to receive fasteners for securing bus bars to the bus bar supports. A battery cell that has electrodes in the form of pliable tabs can be secured to the cell carrier by, for example, adhering the cell body to the rigid backing. The cell tabs are secured between the bus bars and the bus bar supports when bus bars are fastened to the bus bar supports, and the rigidly mounted supports help prevent relative motion between the cell body and tabs. This helps prevent the cell tabs from ripping or tearing when the battery cell is subjected to vibrations during use.

Abstract: The invention relates to an article comprising: a) one or more stacks of battery plates comprising one or more bipolar plates; b) located between each plate is a separator and a liquid electrolyte; further comprising one of more of the features: 1) c) the one or more stacks of battery plates having a plurality of channels passing transversely though the portion of the plates having the cathode and/or the anode deposited thereon; and d) i) one or more seals about the periphery of the channels which prevent the leakage of the liquid electrolyte into the channels, and/or posts located in one or more of the channels having on each end an overlapping portion that covers the channel and sealing surface on the outside of the monopolar plates adjacent to the holes for the transverse channels and applies pressure on the sealing surface of the monopolar plates wherein the pressure is sufficient to withstand pressures created during assembly and operation of electrochemical cells created by the stacks of battery plates;

Abstract: A method of managing leakage of liquid inside a battery system comprises: containing leaking liquid in a non-liquid sensitive region of the battery system so as to protect internal electrical components of the battery system from coming in contact with the leaking liquid; and in direct response to the leakage, expunging the leaking liquid from the battery system. A drain device includes: a body with a port therethrough, the body configured to be positioned in a wall of a container; means for opening the port in response to a first liquid contacting the drain device on an inside of the container; and means for resisting ingress into the container by a second liquid that contacts the drain device on an outside of the container.

Abstract: A vehicle battery system has a vehicle battery, a cooling device to cool the vehicle battery and which includes a heat sink in thermal contact with the battery cells to transfer heat from the battery cells to the heat sink. The heat sink has at least one cooling channel through which a coolant may flow and connection ends formed by delimitations of the at least one cooling channel. A coolant distributor is provided at and connected to at least one end of the heat sink at a receiving region which is adhesive bonded to the heat sink, the receiving region of the coolant distributor surrounding the connection ends of the heat sink, in which the end faces of the delimitations of the cooling channel form stops for the coolant distributor which abut contact surfaces of the coolant distributor.

Abstract: A battery pack includes at least one unit cell with a top end, the unit cell including a vent hole, and a pack cover over the top end of the unit cell. The pack cover includes a discharge part having a bottom member that is sloped with respect to the top end of the unit cell. The bottom member of the pack cover including an aperture corresponding to the vent hole of the unit cell.

Abstract: A hermetic battery including: a safety valve through which gas generated in the battery due to increase in pressure in the battery is discharged outside the battery, wherein the safety valve includes a first safety valve 9a, 10 which is operated at a first operating pressure, and a second safety valve 15a which is operated at a second operating pressure higher than the first operating pressure, a rate at which the gas is discharged while the second safety valve 15a is operated is higher than a rate at which the gas is discharged while the first safety valve 9a, 10 is operated, and the first safety valve 9a, 10 is closed at least while the second safety valve 15a is operated.

Abstract: A rechargeable battery includes an electrode assembly comprising a positive electrode and a negative electrode; a case accommodating the electrode assembly; and a cap assembly combined to the case and electrically connected to the electrode assembly, wherein the cap assembly comprises a first member and a second member that are electrically connected to each other, and a minute current transporting member located between the first member and the second member, the minute current transporting member having a larger resistance than the first member and the second member, and electrically connected to the first member and the second member.

Abstract: The disclosed embodiments relate to systems that produce electric energy.

Abstract: A battery pack includes: at least one battery module having a plurality of battery cells arranged in one direction; and a housing including a module accommodating portion for accommodating the battery module therein and a flange portion coupled to an entrance of the module accommodating portion, and the flange portion includes an inclined surface and a drainage port at the end of the inclined surface.

Abstract: An electricity storage device according to the present invention includes a battery module having side plates and cover members assembled to both the sides of a case member of the battery module, so that gas discharge spaces are defined into which gas is emitted from the terminals of battery cells that are stored within the case member. Projecting portions are provided to the side plates respectively, and have through-holes communicating with the gas discharge spaces. The lowermost surfaces of the through-holes of the projecting portions are positioned lower than a axe of any of the battery cells. The projecting portions are connected by a tubular rubber members.

Abstract: A rechargeable battery including an electrode assembly including a first surface; a case containing the electrode assembly and an electrolyte solution; a cap plate covering an opening of the case and including a first surface spaced apart in a first direction from and facing the first surface of the electrode assembly; and an electrolyte solution absorption member inside the case and located between the first surface of the electrode assembly and the first surface of the cap plate in the first direction, the electrolyte solution absorption member configured to absorb a portion of the electrolyte solution.

Abstract: An electricity storage device has an electricity storage unit and a case that contains the electricity storage unit and a coolant for cooling the electricity storage unit. The case includes guide portions on an inner wall surface above the electricity storage unit, each of the guide portions having an oblique portion for, when gas is produced by the electricity storage unit, leading the gas to a predetermined position; and contact portions each of which protrudes in a direction of the electricity storage unit with respect to the oblique portions of the guide portions and is brought into contact with the coolant.

Abstract: A secondary battery module includes a cell block in which a plurality of square batteries are layered, and includes: a pair of end plates arranged to respectively face one side and another side of the cell block in a layering direction; and a pair of side frames and arranged to respectively face one side and another side in a cell width direction perpendicular to the layering direction of the cell block, and in the one side and another side in the cell width direction, one end portion being engaged with one end plate at the one side in the layering direction, and other end portion being engaged with other end plate at another side in the layering direction.

Abstract: A cooling/heating element for a rechargeable battery, the cooling/heating element including a cooling area having a first boundary which physically contacts a first cell of the rechargeable battery, and a second boundary which physically contacts a second cell of the rechargeable battery. The cooling/heating element can be stacked and also include an inlet and/or outlet which interacts with an inlet and/or outlet of an adjacent cooling/heating element in a stack.

Abstract: A battery module includes a plurality of battery cells arranged in a first direction, the battery cells having vents, a housing accommodating the battery cells, and an insulating member corresponding to the vents.

Abstract: A battery pack includes a plurality of cell assemblies each of which include one or more prismatic batteries. A frame has legs sized and configured to be positioned around the prismatic batteries. At least one leg includes a rear face, curved outer edge and a side face. A thermal transfer sheet is made from a sheet of a compressed mass of exfoliated graphite particles. Each thermal transfer sheet is positioned to contact the major surface of the at least one prismatic battery and is bent over the curved outer edge. At least a portion of each thermal transfer sheet is secured between a heat sink and the side face.

Abstract: Provided is an electrical energy storage device including an electrode winding body, which includes a positive electrode generating electrons by oxidation and reduction, a negative electrode for absorbing the generated electrons, and separation layers for physically separating the negative electrode from the positive electrode, which are sequentially wound around a winding core, and an electrolyte provided between the positive electrode and the negative electrode, the electrical energy storage device including: a terminal plate for connecting the electrode winding body to an external electrode interconnecting member such as an external resistor; a cylindrical can for accommodating the electrode winding body connected to the terminal plate; and a ring-shaped sealing member for closing an opening formed in the can; wherein the sealing member includes a vent part having a vent hole and integrally formed in the center of at least one side of the sealing member.

Abstract: An electric storage apparatus has an electric-generating element performing charge and discharge and a case accommodating the electric-generating element and an electrolytic solution. The case has an injection portion, a cap, a worked portion, and a valve. The injection portion is used for injecting the electrolytic solution into the case. The cap closes the injection portion. The worked portion is formed along the outer shapes of the injection portion and the cap by working the wall face of the case. The valve is used for discharging gas produced within the case to the outside of the case and is provided between the injection portion and the worked portion.

Abstract: Provided is a water addition plug for a storage battery, which is for carrying out water addition into a container of the storage battery. The water addition plug comprising a water addition plug main body having a water supply port through which the water is supplied, a water addition port through which the supplied water is discharged into the container, and a valve chest disposed between the water supply port and the water addition port and provided with a first valve and a second valve and a float that moves up and down following an electrolyte level in the container. The first valve comprises a first drain port, which is open to the valve chest and communicates with the water addition port, and a first valve element for closing the first drain port in synchronization with a vertical movement of the float. The second valve comprises a second drain port, which is open to the valve chest and communicates with the water addition port, and a second valve element for closing the second drain port.

Abstract: An electrochemical cell includes a cell element and a current collector disposed in a housing that includes a vent. The current collector includes an outer member and an inner member coupled together by one or more flexible arms. The outer member is coupled to the cell element and the inner member is coupled to the vent, such that the flexible arms allow axial movement of the inner member with respect to the outer member when the vent moves from an undeployed position to a deployed position. The housing may include a shoulder that holds the cell element in the housing. The electrochemical cell may also include a coil plate provided at an end of the cell element. The coil plate is coupled to an edge of at least one electrode of the cell element.