Abstract: In order to provide small electronic equipment which can be used for a long time, electronic equipment includes a casing, a hold portion provided as part of the casing, for holding the equipment, and a fuel cell, in which a recessed portion provided in the hold portion has a vent hole formed therein for supplying air to the fuel cell. A fuel cell mounting chamber for containing the fuel cell is provided inside the hold portion. At least a part of the fuel cell mounting chamber and the vent hole provided in the recessed portion adjoin each other such that air is supplied from the vent hole to the fuel cell.

Abstract: A battery box assembly for toys includes a frame having an engaging portion on a side thereof and a box has a first end pivotably connected to the frame and a battery unit 3 is inserted into the box via an open end defined in a second end of the box. Two pivotable locking members are connected on two sides of the box and the battery unit has two protrusions which are removably engaged with the locking members. A hook member is pivotably connected to one of the two sides of the box and removably hooked to the engaging portion.

Abstract: A secondary battery module including a plurality of secondary battery cells, each secondary battery cell including electrodes on one side thereof and a vent on the same side as the electrodes, a module frame coupled to the plurality of secondary battery cells and fixing the secondary battery cells in a predetermined arrangement, the module frame including a plurality of vent holes corresponding to the vents of the secondary battery cells, and protrusions disposed around the vent holes and protruding toward the vents, wherein each vent of the secondary battery cells is coupled to one of the protrusions of the module frame.

Abstract: A battery unit comprises a bypass structure. The bypass structure includes a bypass exit opening formed at one end of a second direction traversing a first direction at a first end of the battery case, the first direction being oriented from the first end to a second end at which an outlet is formed, a bypass entrance opening formed in a central part of the battery case along the first direction and in a central part along the second direction, a bypass duct by which the bypass exit opening communicates with the bypass entrance opening, and a flow path which guides a cooling gas downstream of the bypass entrance opening to both sides of the second direction.

Abstract: A secondary battery with a maximized cycle-life having a multi-stage safety valve so as to lower the inner pressure of the battery in stages. The multi-stage safety valve is installed on a case and the secondary battery is equipped with an electrode assembly including both positive and negative electrodes and a separator interposed therebetween.

Abstract: A serial interface interposed between two serially connected unit cells provides mechanical strength to the serial connection and conductive coupling therebetween. The serial interface includes an inter-connector having a first vent hole formed therein configured for conductively coupling an anode outer wall of a first unit cell and a cathode terminal of a second unit cell to each other; and a spacer having a second vent hole formed therein and configured to be disposed between the inter-connector and an anode outer wall of the second unit cell to prevent a short-circuit due to the movement of the inter-connector.

Abstract: There is provided a sealed prismatic battery having an opening vent excellent in reliability with use of a deformed state of a battery casing on occasion of abnormal increase in internal pressure of the battery. The battery casing is shaped like an oval quadrangle having a width in a direction of thickness smaller than a height in a longitudinal direction and a length in a lateral direction, and side walls of the casing that face in the lateral direction swell outward in the lateral direction so as to form circular-arc shapes in general. The opening vent is composed of a groove formed as a recess on the side wall. A distances from the upper end of the battery casing to the groove is set between 3 and 20% of the longitudinal height of the battery casing.

Abstract: A single point watering assembly for a monobloc battery having a plurality of cell access ports each have a top edge. The assembly includes a manifold and a plurality of valve cartridges. The manifold overlies the access ports and includes extensions each extending into one of the access ports. Each valve cartridge is supported by one of the manifold extensions and is located below the top edge of the respective access port. Consequently, the assembly presents a low profile extending above the battery.

Abstract: A thermal transfer barrier is disclosed that is positionable adjacent to an electrical storage cell having a vent configured to release gasses from the cell. The thermal transfer barrier may comprise a barrier member having a first side for orienting toward the vent on the cell. The first side is contoured in a manner configured to collect gas directed toward the first side of the barrier member from the vent when released from the vent and guide the collected gas away from a cell positioned adjacent to the cell.

Abstract: A system to vent a moist gas stream is disclosed. The system includes an enclosure and an electrochemical cell disposed within the enclosure, the electrochemical cell productive of the moist gas stream. A first vent is in fluid communication with the electrochemical cell for venting the moist gas stream to an exterior of the enclosure, and a second vent is in fluid communication with an interior of the enclosure and in thermal communication with the first vent for discharging heated air to the exterior of the enclosure. At least a portion of the discharging heated air is for preventing freezing of the moist gas stream within the first vent.

Abstract: A secondary battery module includes a unit battery aggregate having a plurality of unit batteries arranged spaced from each other; a housing adapted to receive the unit battery aggregate; and a communicating member installed inside the housing, the communicating member adapted to supply a cooling medium flowing into the housing between a plurality of the unit batteries. The housing includes an inlet for flowing temperature control air into the unit battery aggregate, an outlet for flowing out the air passing through the unit battery, and a communicating member arranged perpendicular to the direction of inflow and outflow of the air with respect to the inlet and the outlet to communicate with a flowing channel between unit batteries, respectively.

Abstract: Provided are a cap assembly for a secondary battery. The cap assembly includes a cap-up, a PTC thermistor disposed under the cap-up, a vent disposed under the PTC thermistor, and an insulating plate disposed between the vent and the cap-up and preventing contact between the vent and the PTC thermistor. Here, the vent includes a curling part bent to cover an external surface of the insulating plate. Further, the secondary battery includes an electrode assembly, a can accommodating the electrode assembly and having an opening, and the cap assembly which seals the can.

Abstract: A battery includes a battery can housing an cell that supplies electrical energy at terminals of the cell by an electro-chemical reaction with oxygen, the can including, a first member having at least one hole that is exposed to air; and a second member. The battery also includes a mechanism coupled to one of the first and second members to move the one of the first and second members such that when current is drawn from the battery, the opening in the member allows air to pass into the battery, and to move the one of the first and second members such that when current is not drawn from the battery, the opening in the member is not in registration to inhibit air to pass into the battery. The battery also includes a circuit to control the mechanism. In one embodiment the circuit monitors levels of O2 in a air plenum that surrounds the cell.

Abstract: A fluid consuming battery (10) is provided with a fluid regulating system (50) for regulating fluid entry into the battery. The battery (10) includes a fluid consuming cell (20) having a cell housing with fluid entry ports for the passage of a fluid into the cell housing. A first fluid consuming electrode and a second electrode are disposed within the cell housing. The fluid regulating system (50) includes a valve having a moving plate (66) disposed adjacent to a fixed plate (62). The moving plate and fixed plate both have fluid entry ports (68, 64) that align in an open valve position and are misaligned in a closed valve position. The fluid regulating system (50) also includes an actuator that may include one or more shape memory alloy (SMA) components (82a, 82b) for moving the moving plate (66) relative to the fixed plate (62) to open and close the valve.

Abstract: A rechargeable battery includes: an electrode group including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a case housing the electrode group; a cap-up electrically connected with the electrode group and combined with the case; a vent plate installed below the cap-up and having a notch; and a heterogeneous metallic member installed between the cap-up and the vent plate and made of a clad metal, whereby the stability and outputting of the rechargeable battery can be improved.

Abstract: A fluid consuming battery (10) is provided with a fluid regulating system (50) for regulating fluid entry into the battery. The battery (10) includes a fluid consuming cell (20) having a cell housing with fluid entry ports for the passage of a fluid into the cell housing. A first fluid consuming electrode and a second electrode are disposed within the cell housing. The fluid regulating system (50) includes a valve having a moving plate (66) disposed adjacent to a fixed plate (62). The moving plate and fixed plate both have fluid entry ports (68, 64) that align in an open valve position and are misaligned in a closed valve position. The fluid regulating system (50) also includes an actuator that may include one or more shape memory alloy (SMA) components (82a, 82b) for moving the moving plate (66) relative to the fixed plate (62) to open and close the valve.

Abstract: A fluid consuming battery (10) is provided with a fluid regulating system (50) for regulating fluid entry into the battery. The battery (10) includes a fluid consuming cell (20) having a cell housing with fluid entry ports for the passage of a fluid into the cell housing. A first fluid consuming electrode and a second electrode are disposed within the cell housing. The fluid regulating system (50) includes a valve having a moving plate (66) disposed adjacent to a fixed plate (62). The moving plate and fixed plate both have fluid entry ports (68, 64) that align in an open valve position and are misaligned in a closed valve position. The fluid regulating system (50) also includes an actuator that may include one or more shape memory alloy (SMA) components (82a, 82b) for moving the moving plate (66) relative to the fixed plate (62) to open and close the valve.

Abstract: Disclosed herein is a cooling system for vehicle battery packs, which is constructed such that an intake duct for introducing a coolant, such as air, which cools a battery pack, into the battery pack from a predetermined region is not included, air existing inside a vehicle at a region around a battery pack isolated from a cabin of the vehicle is directly introduced into the battery pack, and the air having passed through the battery pack, which has been heated, is discharged through an exhaust duct connected to an internal space of the vehicle, in which a possibility of air to be recirculated to the region around the battery pack is low. The battery pack cooling system according to the present invention uses air existing inside the vehicle. Consequently, the control of temperature and humidity is easier than when external air is used, and generation of noise and backward flow of flames and toxic gas generated during a fire, which are problems caused when the air in the cabin is used, are prevented.

Abstract: A sealed rectangular battery having a reliably operative explosion-proof valve is provided. A rectangular battery case 1 whose cross-section is oblong, the battery case having a prismatic shaped case body 5 with a bottom and a lid 6. An explosion-proof valve 2 is arranged near one of two opposing short sides of a main surface wall of the lid. The explosion-proof valve a V-cut groove 15 concavely formed in V-shaped or U-shaped in which a central bent part 15a is positioned at a central location in the main surface wall 6a of the lid, and a thin wall 16 formed by the V-cut groove. Cut grooves 18 connecting each of two ends of the V-cut groove and each of two long sides of the main surface wall of the lid which are parallel to each other, respectively, are cut and formed in the main surface wall of the lid.

Abstract: A battery module includes: a plurality of battery cells; a casing in which the plurality of battery cells are housed; a plurality of conductive members used to electrically connect the plurality of battery cells; a first chamber, formed in the casing, in which the plurality of battery cells are disposed; and a second chamber, formed in the casing and isolated from the first chamber, into which emitted matter from the battery cells is released, wherein: the conductive members and the battery cells are connected together within the second chamber.

Abstract: A battery includes a cathode having an interior surface and an exterior surface, and defining a cavity and two open ends; a separator disposed adjacent to the interior surface of the cathode; an anode disposed adjacent to the separator and inside the cavity; an air-permeable, liquid-impermeable barrier layer disposed adjacent to the exterior surface of the cathode, and defining an exterior surface of the battery; two end members connected to the open ends of the cathode; and an anode current collector extending through the two end members. Methods designed such a battery is also disclosed.

Abstract: The battery system is provided with battery blocks 2 having a plurality of stacked battery cells 1, a pair of endplates 4 stacked at opposite ends of a battery block 2, connecting rails 5 that join the pair of endplates 4, and output lines 20 that connect to battery cell 1 electrode terminals 13. Output lines 20 are connected to battery cell 1 electrode terminals 13 via transfer bus bars 22, and an output line 20 connecting terminal 21 is connected to a transfer bus bar 22 by a bolt 7, and a nut 8. In this battery system, the nut 8 is attached to an endplate 4 in a manner that does not allow it to rotate, and the bolt 7 is screwed into the nut 8 to attach it to the endplate 4. The output line 20 connecting terminal 21 and transfer bus bar 22 are connected via the bolt 7 and nut 8 and are fixed to the endplate 4.

Abstract: A sealed cell having a safety mechanism is provided. The safety mechanism has a non-resealable valve structure formed in a sealing plate that seals the cell. The valve structure is broken as soon as the internal pressure reaches or exceeds a predetermined value so as to permit the internal gas to be released outside. The valve structure has at least one dome protruding toward the interior of the cell, which in turn has at the periphery thereof a break groove for facilitating the breakage of the valve structure. This makes the valve structure highly responsive to the internal pressure and causes to form a break-opened orifice of a sufficient area at the time of operation in response to the increased internal pressure. The valve structure is not unnecessarily broken by the impacts of, for example, dropping. As a result, the safety of the sealed cell is significantly improved.

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: The present invention describes a monoblock for a plurality of lithium ion cells. The monoblock includes a case having a base and a cover dimensioned and configured to the base. The case includes a chamber that includes cell compartments for lithium cells. Each lithium cell is disposed in a leaf spring that applies compression pressure on the cell. The structural integrity of the battery and cells is maintained using internal and external anti-swelling features including a waffle pattern, backing plates, etc. A liquid and gas pressure management system is also incorporated with the case and realized by a vent plenum, check valves, bladders, bags, etc.

Abstract: A bipolar plate for a fuel cell including pores extending between cooling fluid flow channels and reactant gas flow channels defined by the plate. Pervaporation membranes cover the pores and selectively allow water in the cooling fluid flowing down the cooling fluid flow channels to pervaporate through the membrane and humidify the reactant gas flowing down the reactant gas flow channels. In one embodiment, the bipolar plate includes two stamped unipolar plates secured together.

Abstract: A closure assembly for an electrochemical cell including a container and an end assembly sealing an open end of the container in order to minimize mass or weight loss of the cell due to electrolyte vapor transmission is disclosed. The end assembly is provided with a vent member capable of venting a fluid when the pressure within the cell exceeds a predetermined limit; a contact member operatively in electrical contact with a conductive contact of the end assembly and a current collector of an electrode of the cell; and an insulating, polymeric seal member disposed at least between conductive components of the closure assembly having different polarities. In a preferred embodiment, the seal member has a selected dimensional ratio in order to minimize vapor transmission of the electrolyte through the seal member.

Abstract: A cap assembly and a secondary battery having the same, the cap assembly including a vent that breaks at a relatively low, uniform, breaking pressure. The vent includes a body, a connecting part that extends from an edge of the body and is bent towards the body, and a flange that extends from the connecting part and is bent away from the body. The connecting part is thinner than the body and the flange. The secondary battery includes an electrode assembly, a can to house the electrode assembly, and the cap assembly to seal the can.

Abstract: A battery assembly of the invention includes a secondary battery formed by stacking a plurality of unit battery cells having a cathode and an anode, collector electrodes provided on respective end surfaces of the secondary battery positioned in the stacking direction of the unit battery cells; and terminal portions formed at the collector electrodes, protruded outward from a side surface of the secondary battery, to which conductive members are connected for charging and discharging. A coolant is supplied to the terminal portions to cool the terminal portions.

Abstract: A metal-air battery is shown. The metal-air battery includes a housing holding at least one metal-air cell and an interface electrically coupled to the housing holding the at least one metal-air cell. The interface includes an air management system. The air management system includes a housing having at least one cavity and a passage to allow air flow from the cavity. The housing carries contacts to make electrical contact with the interface. A motor is disposed within the one cavity and an impeller is in communication with the motor. An electronic circuit is provided to control the motor and a cover disposed over one side of the housing. The metal-air battery can be a zinc-air battery.

Abstract: A lithium secondary battery includes a can made of a conductive metal. The can houses an electrode unit having positive and negative electrode plates with a separator interposed therebetween with an electrolytic solution. An upper opening of the can is sealed by a cap assembly. A bottom plate is welded to an outer bottom surface of the can, and a lead plate having a first end welded to the outer bottom surface of the can and a second end connected to a safety device so that the can is electrically connected to the safety device.

Abstract: A pressurized underground enclosure includes a battery venting system having a battery within a battery box in a sealed enclosure. A first pipe is fluidly connected to the battery box and an ambient atmosphere and includes a vacuum generator for reducing a pressure in the battery box. A second pipe is fluidly connected to the battery box and the ambient atmosphere and includes a one-way valve permitting airflow to the battery box and precluding airflow from the battery box to the ambient atmosphere. The enclosure includes a scissors lift including scissor linkage units having arms pivotally connected at terminal ends and at central positions. The scissor linkage units are moveable from a retracted to an extended position by pneumatic cylinders. The internal pressurization of the enclosure is selectively released and locking mechanisms are retracted before a rack of the scissors lift is extended through an opening of the enclosure.

Abstract: A lithium rechargeable battery includes a bimetal and a current interruption means that is actuated by the inner pressure or heat generated from within the rechargeable battery in the case of an abnormal operation thereof to interrupt the flow of current for improved stability of the lithium rechargeable battery.

Abstract: A nickel-zinc battery cell is formed with a negative can, a positive cap, and a jelly roll of electrochemically active positive and negative materials within. The inner surface of the can is protected with an anticorrosive material that may be coated or plated onto the can. Good electrical contact between the jelly roll and the cap is achieved through folding the nickel substrate over to contact a positive current collection disk.

Abstract: And end cap assembly and venting system therein for closing and sealing the open end of a cell housing. The end cap assembly comprises a sealing disk underlying an end cap, and a metal support disk between the end cap and the sealing disk. The metal support disk has a plurality of primary vent apertures and a plurality of secondary vent apertures through its surface. The primary vent apertures are spaced apart along a path located at a greater distance from the central longitudinal axis of the metal support disk than the secondary vent apertures. The insulating sealing disk may have a thinned portion therein forming an rupturable membrane circumventing the central hub of the sealing disk. The insulating sealing disk may have protrusions emanating from its top surface to deflect the membrane during rupture. The venting system releases internal gases rapidly from the cell in the event of an abusive or short circuit discharge.

Abstract: The gap between the bottom of a center gas vent pipe in a battery cell and the bottom of the cell can is established to be at least a minimum distance to reduce the risk of battery damage from inadequate gas venting.

Abstract: An electrochemical cell is provided with an enhanced pressure relief vent formed in a closed end of the cell container that allows for effective venting of gas from the closed end of the container. The cell includes a container having a first end, a second end, a side wall extending between the first and second ends, and an end wall extending across the first end. The cell has a positive electrode, a negative electrode, and an aqueous alkaline electrolyte, all disposed in the container. The cell further includes a pressure relief vent mechanism having a reduced thickness groove formed in the end wall of the container. A cover is welded to the closed end wall of the container over the pressure relief vent mechanism and is welded via at least three welds, wherein two adjacent welds are angularly separated by more than 120°.

Abstract: In a closure assembly for sealed rechargeable batteries, upon a metallic foil is placed a spacer having an aperture that is larger than an upwardly protruding portion of the foil but smaller than the outside diameter of the foil, and upon a metallic safety vent is placed either a spacer and a metallic cap, or a metallic cap only, the spacer and/or metallic cap having an aperture that is larger than a downwardly protruding portion of the safety vent but smaller than the outside diameter of the safety vent, so as to control and suppress deformation of the metallic foil and safety vent in the event of abnormal battery pressure increasing due to overcharging or the like and to ensure that rupture occurs at a predetermined pressure level, whereby a sealed rechargeable battery suitable for high-output applications and having high safety features is provided.

Abstract: A battery pack including at least a battery and a casing for accommodating the battery, in which the casing has a ventilation hole communicating with the outside of the casing, and a mesh member made of metal for covering at least the ventilation hole is provided at the side surface of the casing. Preferably, the mesh member is coated with an insulating resin.

Abstract: An air depolarized battery with an improved sealing member for sealing the air inlet port(s) of the battery before use is disclosed. The sealing member has areas of relatively high and low permeability, with an area of low permeability over at least a portion of an air inlet port. The sealing member may comprise a plurality of layers, where the area of highest permeability includes a portion of the lowest permeability layer that has a higher permeability than a surrounding portion thereof. The rate of flow of air through the low permeability area and into the battery can be easily modified to maintain a desired battery open circuit voltage during battery storage to allow activation of the battery within a short time after removal of the sealing member, while minimizing losses in discharge capacity before use.

Abstract: A multi-cell battery in which a plurality of electrochemical cells are disposed in a battery case. The battery case includes one or more partitions which divide the interior of the case into a plurality of cell compartments that house the electrochemical cells. The battery case includes at least one gas channel have a tortuous pathway designed to trap electrolyte which may escape from the cell compartments. A unique battery terminal may be molded into the battery case.

Abstract: A battery capable of preventing deformation thereof when gas is generated is provided. In the battery, a safety valve is electrically connected to a battery element, and an insulating plate is arranged between the battery element and the safety valve. The safety valve has a plurality of vent holes around a central portion thereof. The insulating plate has seven or more openings in the circumferential direction in a position where the openings can face to the vent holes of the safety valves around a central portion thereof.

Abstract: A multi-cell battery in which a plurality of electrochemical cells are disposed in a battery case. The battery case includes one or more partitions which divide the interior of the case into a plurality of cell compartments that house the electrochemical cells. The battery case includes at least one gas channel have a tortuous pathway designed to trap electrolyte which may escape from the cell compartments. A unique battery terminal may be molded into the battery case.

Abstract: A lithium ion secondary battery including an electrode assembly, a center pin positioned within the electrode assembly, a variable-length member coupled to the center pin, the variable-length member adapted to increase in length when an interior temperature of the center pin reaches a critical temperature, a can containing the electrode assembly, the center pin, and the variable-length member, and a cap assembly coupled to the can, the cap assembly having safety means fracturable in response to the variable-length member being increased in length.

Abstract: A lithium ion secondary battery including an electrode assembly, a center pin positioned within the electrode assembly, a variable-length member coupled to the center pin, the variable-length member adapted to increase in length when an interior temperature of the center pin reaches a critical temperature, a can containing the electrode assembly, the center pin, and the variable-length member, and a cap assembly coupled to the can, the cap assembly having safety means fracturable in response to the variable-length member being increased in length.

Abstract: A battery system includes a plurality of electric rechargeable cells which are stacked in a row and conductive members which electrically connect the electric rechargeable cells together. The electric rechargeable cells each has a gas exhaust port, and a positive electrode terminal and a negative electrode terminal which are disposed in such a manner as to hold the gas exhaust port therebetween. The battery system includes a gas exhaust member connected to the gas exhaust ports, a partition holding member which establishes partitions between the gas exhaust member and the positive electrode terminals and the negative electrode terminals in such a manner as to cover them and on which the conductive members are provided, and a voltage control circuit which is attached to an outer surface side of the partition holding member in a position which confronts the gas exhaust member and controls voltages of the electric rechargeable cells.

Abstract: A lithium ion secondary battery in which a safety vent as a safety device for a swelling phenomenon functions under a low pressure. A notch is formed in an inner surface of a large-area wall of the secondary battery, and an auxiliary notch is formed in an outer surface to correspond to the notch formed in the inner surface.

Abstract: A rechargeable battery includes an electrode assembly, a case, a cap assembly, and an arc interrupter. The electrode assembly includes an anode, a cathode, and a separator interposed between the anode and the cathode. The case houses the electrode assembly and has an opening for the electrode assembly, and the cap assembly is coupled to the opening of the case and is electrically connected to the electrode assembly. The arc interrupter includes an interrupting member movably disposed in the cap assembly and a driving member connected to the interrupting member to transfer the interrupting member.

Abstract: A battery includes a housing having a plurality of cell vessels and a plurality of positive and negative electrode plates provided within the cell vessels. The battery also includes a lower cover configured to close the cell vessels with a seal, the lower cover having openings for the cell vessels. The battery further includes a degassing channel system which is coupled to the lower cover by at least one member, the openings of the lower cover opening into the degassing channel system. Annular projections are integrally formed on each of the openings of the lower cover adjacent to the lower cover, and the at least one member is configured to couple the degassing channel system to the lower cover such that the projections seal the openings to the degassing channel system by surface pressure.

Abstract: A secondary battery is provided with a safety vent that can decrease the increased inner pressure of the secondary battery by being rapidly fractured when the inner pressure of the secondary battery is increased over a predetermined value. The secondary battery is constructed with a sealed outer case forming a receiving space in an inner side, an electrode assembly received in the receiving space of the outer case, a safety vent formed on one surface of the outer case, and a fracture induction part formed on the surface of the outer case and disposed at a portion of a circumference region of the safety vent. The fracture induction part is relatively thinner than the other portion of the surface of the outer case.