Abstract: A cap assembly for a battery and a battery incorporating the cap assembly. The cap assembly includes a plate that connects the electrodes of the bare cell of the battery. The cap assembly includes a vent member that includes a protrusion that is physically connected to the plate. Excess pressure within the bare cell results in the protrusion disconnecting from the plate thereby interrupting current. The vent further includes two circular notches, an inner notch and an outer notch. The vent further includes a cross notch that extends radially outward so as to intersect and extend beyond both the first and second notches. The notches are configured to release when the pressure within the bare cell exceeds a burst pressure.

Abstract: A battery cover includes an inner assembly and an outer assembly. The inner assembly includes an upper board defining an L-shaped groove, a bottom board screwed connected with the upper board; and a metal dome fixed between the upper board and the bottom board to pass throughout the bottom board for contacting the battery compartment. The outer assembly includes a front cover defining a first opening thereon, a slide button receiving in the first opening and the L-shaped groove of the upper board to slidably move along the L-shaped groove.

Abstract: A sealed battery with a film casing, comprising: a film casing covering a battery element; an electrode terminal pulled out by being conductive-connected to a positive electrode and a negative electrode of the battery element is taken out from a sealing part of the film casing; and a part of the electrode terminal between a portion positioned at the sealing part of the electrode terminal and a part of a portion of the electrode terminal extending outward beyond the sealing part being covered by an insulating resin layer, a region with low strength against bending being formed at the insulating resin layer positioned at a part extending outward beyond the sealing part or a part of the electrode terminal positioned at a lower layer of the insulating resin layer positioned at a part extending outward beyond the sealing part.

Abstract: There is provided a secondary battery enabling an electrode terminal to be deformed in an internal direction of a can by preventing the upper plate of the can from being deformed in an internal direction of the can when a compression is applied in a direction perpendicular to the longitudinal axis. In one embodiment, a secondary battery includes a can having one opened portion to accommodate an electrode assembly. An upper plate is positioned at the opened portion of the can and has a pair of short side portions and a pair of long side portions connected both sides of the short side portions. In the secondary battery, a short circuit preventing portion formed thinner than other regions while crossing between the long side portions is further formed at a central portion of the bottom surface of the upper plate. Accordingly, the stability of the secondary battery can be improved.

Abstract: A secondary battery includes a bare cell having an electrode terminal and a cap plate, and a protective circuit module protecting the bare cell. The protective circuit module includes a first module positioned on an upper surface of the bare cell, a second module positioned on a lower surface of the bare cell and having a charge/discharge terminal, and a third module positioned on a side surface of the bare cell and electrically connecting the first module to the second module.

Abstract: Disclosed are a battery pack and a fabricating method which can increase the coupling strength of a bare cell and a circuit accessory and prevent the circuit accessory from being separated from the bare cell due to external forces such as bending, twisting and falling of a battery, by forming a fixing member protruding from the upper part of the bare cell, and coupling the fixing member with a fixing member hole of the circuit accessory formed in advance by injection molding in the type of the fixing member being laid across the fixing member hole. The battery pack includes: a bare cell having a cap plate on the upper part of the bare cell; and a circuit accessory coupled with the upper part of the bare cell, wherein a fixing member is formed to protrude from the outer surface of the cap plate, a fixing member hole corresponding to the fixing member is formed on the circuit accessory, and the fixing member is inserted in and is coupled with the fixing member hole.

Abstract: A battery pack includes: a battery including a battery element covered with a packaging member, the battery element including a positive electrode and a negative electrode which are spirally wound together or stacked on one another through a separator; a protection circuit board for the battery; and a covering material collectively covering the battery and the protection circuit board. The covering material includes a shape-retaining polymer. The shape-retaining polymer contains an insulating curable polyurethane resin including polyol and polyisocyanate.

Abstract: According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material (1) of a first embodiment of the present invention has a base material layer (11), first adhesive layer (12) containing an adhesive, aluminum foil layer (13), corrosion prevention treated layer (14), second adhesive layer (15) containing an adhesive or adhesive resin, and sealant layer (16) laminated in that order. The base material layer (11) is a film base material in which the difference (?2??1) of the elasticity (?1) to the yield point and the elasticity (?2) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.

Abstract: A secondary battery in which bending of a portion of long sides of a cap assembly is prevented or reduced during insertion of the cap assembly into a can. A secondary battery includes a can having an opening and accommodating an electrode assembly, and a cap assembly sealing the opening of the can and including a cap plate including long sides and short sides extending between the long sides, wherein ductility of the short sides of the cap assembly is greater than that of portions of the cap plate other than the short sides.

Abstract: In one embodiment, a cap for an energy storage cell is provided, the cap including: a body including a dome formed therein, the dome including a through-way; and, an electrode assembly including a hemispherically shaped electrical insulator surrounding an electrode; wherein the insulator is disposed in and hermetically seals the dome and the electrode is electrically separated from the body by the throughway. A method of manufacture and an energy storage cell are also disclosed.

Abstract: A battery packet (50) comprises a battery case (51) formed by processing a battery case forming laminated sheet (10), a battery 50a contained in the battery case (51), and tabs (59, 60) extending outside from the battery case (51). The battery case forming laminated sheet (10) is formed by laminating a first base film layer (1a), i.e., an outermost layer, a metal foil layer (2), and a heat-adhesive resin layer (3) in that order. The first base film layer (1a) is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer (2) is an aluminum or copper foil. The heat-adhesive resin layer (3) is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.

Abstract: The present invention relates to a secondary battery. The present invention is aimed to provide a secondary battery having a thin upper case formed of a metal. The secondary battery includes a bare cell; a protection circuit module having a circuit board; an upper case formed of a metal and having a cover plate for covering the circuit board of the protection circuit module; and a case-insulating layer formed on an external surface of the cover plate of the upper case.

Abstract: A battery pack having increased resistance against an external impact by increasing a coupling strength between a bare cell and a case resulting in increased reliability and quality. The battery pack includes a bare cell; a circuit module electrically connected to the bare cell; a frame case surrounding the bare cell and including a channel groove arranged at a region facing the bare cell; and a coupling reinforcement portion arranged in the channel groove to couple the frame case to the bare cell.

Abstract: A secondary battery including an electrode assembly, a can accommodating the electrode assembly, a cap assembly sealing the can, and an insulating case interposed between the electrode assembly and the cap assembly and having two facing long side walls and two facing short side walls, wherein the two facing long side walls include opposing end portions and opposing central portions, the opposing end portions and the opposing central portions each include outer surfaces and a distance between the outer surfaces of the opposing end portions of the long side walls is greater than a distance between the outer surfaces of the opposing central portions of the long side walls.

Abstract: A battery safety system that includes a battery terminal configured for making an electrical connection to the system, an electrical disconnect operable to a disconnected state whereby a battery voltage is electrically isolated from the battery terminal, and a connected state, whereby the battery voltage is electrically coupled to the battery terminal. The battery safety system also includes and a terminal guard movable to an exposed position effective to allow making the electrical connection to the battery terminal, and a protected position effective to prevent electrical contact with the battery terminal other than via the electrical connection. The system is configured to prevent the electrical disconnect from being operated to the connected state if the terminal guard is not at the protected position.

Abstract: Provided is a sealed battery that can offer excellent battery performances by having its electrode terminal and a current collector securely welded to each other, and its manufacturing method. The sealed battery is formed by hermetically sealing a casing storing an electrode assembly and the current collector, wherein: the electrode assembly formed by layering positive and negative electrode plates with a separator sandwiched therebetween is electrically connected to the current collector; and a shaft portion of the electrode terminal penetrates through the current collector. A part of the electrode terminal projecting out from a pass-through of the current collector is a (conical) frustum-shaped portion whose bottom base is in contact with the current collector. The frustum-shaped portion is pressed against the current collector, and the frustum-shaped portion and the current collector are welded together in at least one area on a perimeter of the bottom base of the frustum-shaped portion.

Abstract: A rechargeable battery including: an electrode assembly with a positive electrode, a negative electrode and a separator interposed therebetween; a case housing the electrode assembly; a cap plate connected to the case; a first terminal and a second terminal protruding from an upper part of the cap plate; and a current interrupt module electrically connected to the electrode assembly and the first terminal, wherein the current interrupt module includes a current interrupt unit coupled to the electrode assembly and the current interrupt unit is configured to uncouple from the electrode assembly when an internal pressure of the case increases.

Abstract: A sealed cell has a sealing body with a space-saving safety valve that has excellent safety. The sealing body includes a terminal cap and a safety valve. The terminal cap includes one or more gas releasing holes for releasing a gas from inside to outside of the cell. The gas releasing holes are provided in the external terminal. A safety valve includes a conductive contact portion projecting toward an inside of the sealed cell, a peripheral portion in a periphery of the conductive contact portion, and one or more break grooves formed radially in the peripheral portion. At least one of the gas releasing holes overlap with at least one of break grooves in planar view of the sealed cell.

Abstract: A battery provided by the present invention includes a sealing plate (20) for closing an opening portion in a case for housing an electrode body unit. A fitting convex portion (24) that intrudes into the case opening portion when the sealing plate is attached to a predetermined position of the case opening portion is formed on a rear surface side of the sealing plate. The sealing plate is subjected to thickness increasing molding in a pressing process such that at least a part (27A) of an outer peripheral part (25, 27) of the fitting convex portion that contacts a peripheral edge of the case opening portion is thicker than an inner part (28) of the fitting convex portion that does not contact the peripheral edge of the case opening portion.

Abstract: A battery cover assembly using for accommodating a battery therein comprises a battery cover and a housing. The battery cover has a plurality of arcuate elements protruding therefrom. Each arcuate element has a latching portion protruding therefrom. The housing has a plurality of guiding grooves corresponding to the arcuate elements of the battery cover. The housing further has a plurality of troughs latching with the latching portions and a plurality of notches corresponding to the troughs. The arcuate elements are rotatably received in the guiding grooves. The notches communicate with the troughs, the latching portions releasably latches into the troughs via the notches. When the latching portions is received into the troughs, the battery cover is rotated relative to the housing to latch the latching portions in the troughs.

Abstract: A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, a second coating layer on the first coating layer, and a third coating layer on the second coating layer. The first coating layer fills the concavities and covers the surface of the substrate.

Abstract: A secondary battery, sheathes a protection circuit board with a separate cover, connects the sheathed protection circuit board to a bare cell, and executes a molding or hard pack operation with a molding resin member in a space between the protection circuit board and the bare cell. The secondary battery may be constructed with a rechargeable bare cell, a protection circuit board supporting a protection circuit electrically connected to the bare cell and an external terminal, a board exterior cover adhering to the protection circuit board and the board exterior cover exposing the external terminal, and a first lead plate and a second lead plate that electrically connect the bare cell to the protection circuit board.

Abstract: An end cover assembly for a battery comprises a cover plate; a scabbard mounted on the cover plate; a connector; and a sealing material. The cover plate comprises an opening. The scabbard comprises an interior channel. The opening is in communication with the channel. The connector is disposed in the interior channel and protrudes from the scabbard. The sealing material is disposed in the interior channel and extends beyond the upper portion of the scabbard and wraps around the outside of the scabbard to form a protective flange.

Abstract: A battery pack includes a battery compartment, a terminal plate positioned within the battery compartment for retaining at least two batteries within the battery compartment, and a cover for enclosing the battery compartment, wherein, upon enclosing the battery compartment with the cover, the cover is configured to urge an exterior surface of one of the at least two batteries against an exterior surface of another of the at least two batteries to establish both physical and thermal contact between the at least two batteries.

Abstract: A sealed cell includes a sealing body that includes an iron-based terminal cap and an aluminum-based safety valve. The terminal cap includes an external terminal, a flange in a periphery of the external terminal, and a hole in the flange. The hole has a diameter smaller on an inner side than on an outer side of the sealed cell. The safety valve includes a conductive contact portion projecting toward an inside of the sealed cell, a peripheral portion in a periphery of the conductive contact portion, and a pin projection in the peripheral. The sealed cell has a riveted portion in which the pin projection and the hole of the terminal cap together are riveted by inserting the pin projection into the hole and crushing a tip of the pin projection. A diameter of the terminal cap is larger than a diameter of the safety valve.

Abstract: An upper base portion of a top portion of a battery cell cap functions as a positive terminal, and paths for flow of electrical current are defined between the top portion and portions for welding. The portions for welding are positioned to face a side wall region between a pair of apertures adjacently provided in the top portion, and the current flowing regions are defined between the portions for welding and the side wall regions of the top portion facing to the portions for welding, each forming a symmetrical current flowing region.

Abstract: An electronic device with a battery cover waterproof structure includes a body having a first end and a second end, a battery compartment disposed in the body, a waterproof gasket disposed in the battery compartment, and a battery cover coupled to the body. The waterproof gasket includes an oblique engage surface, and one end of the oblique engage surface near the first end is elevated higher than the other end of the oblique engage surface near the second end. The battery cover has an oblique rib arranged corresponding to in the oblique engage surface. One end of the oblique rib near the first end is elevated higher than the other end of the oblique rib near the second end. The oblique rib will interfere with the oblique engage surface for sealing the battery compartment when the battery cover is pushed towards one end of the battery compartment near the first end.

Abstract: A safety device for use in a lithium ion battery includes a top cover defining a central hole and a number of peripheral holes set around the central hole, a rupture plate fixed to the bottom surface of the top cover and sealing the peripheral holes and the central hole, and a vent plate defining an air hole electrically connected to the rupture plate via an electrical connection point. Other part of the rupture plate is electrically insulated from the vent plate via an insulating gasket. The central hole and the peripheral holes around the central hole can prevent the deformed rupture plate from blocking the air vent passage of the lithium ion battery to improve the safety performance of the lithium ion battery.

Abstract: A cap assembly and a secondary battery using the cap assembly, the cap assembly including: a cap-up having a groove; a PTC thermistor disposed in the groove; and inner components disposed below the cap-up. The inner components can include a vent disposed under the cap-up; a cap-down disposed under the vent; a sub-plate disposed under the cap-down; and an insulating vent disposed between the vent and the cap-down The secondary battery includes: an electrode assembly; a can containing the electrode assembly, having an opening at one side; and the cap assembly to seal the opening of the can.

Abstract: A lithium polymer battery where the corrosion or the electrical short resulting from contact of the metal film of the cut region of external material with the connecting lead or the terminal of the adjacent protective circuit cover can be prevented. The lithium polymer battery comprises: a chargeable and dischargeable bare cell; a protective circuit cover installed on one side surface of the bare cell so as to be electrically coupled to the bare cell; and a holder cap installed between the protective circuit cover and the bare cell so as to block contact between the bare cell and a terminal of the protective circuit cover.

Abstract: A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate and a separator interposed therebetween. A pouch case includes an accommodating portion for accommodating the electrode assembly and a cover portion for sealing the accommodating portion. A reinforcing member is formed between the pouch case and the electrode assembly. In the secondary battery, the reinforcing member includes a first frame formed along one surface of the pouch case, which comes in contact with the electrode assembly, a support portion formed in form of a plate while being spaced apart from the first frame, and a second frame to connect the first frame and the support portion to each other.

Abstract: An insulative nonwoven battery cover and method of construction thereof is provided. The cover includes a plurality of nonwoven sections bonded together to form a desired structural configuration. The nonwoven sections are mats of heat-settable textile fibers and green materials including natural fibers, recycled materials and/or waste stream materials. The mats are formed having a bonded seam of the melted heat-settable textile fibers such that the cover is provided with a circumferentially continuous wall.

Abstract: A cover assembly for a Lithium-ion battery container to improve the durability of the battery. A high pressure injection molded polymer is combined with flanges disposed on the current collecting posts of the battery to provide an improved seal for the battery cover, especially at the interface of the cover and the current collecting posts. The injection molded polymer is fused to the flanges, current collecting posts and container cover to result in a diffusion path of increased length for gases and/or liquids which are known to enter or escape from battery containers. Additional polymer layers can be applied to the assembly to further improve the seal.

Abstract: A secondary battery module includes a row of cells arranged with a gap therebetween, a lid covering one side of the cell row, inner ribs formed on the inner surface of the lid and each determining the gap between the adjacent cells, an outer rim extending along the outer periphery of the lid and cooperating with the corresponding inner ribs to hold the cells located at the opposite ends of the cell row, and a plurality of busbars used to electrically connect the cells in series. The cells and the lid are mechanically connected together by means of the busbars.

Abstract: Provided is a high voltage secondary battery used for a hybrid electric truck among hybrid electric vehicles (HEV), and more particularly, covers are configured to electrically connect to each other by the earth member to ground the covers so as to move current induced to the covers to a chassis of a car body along the earth member due to the high voltage battery module and set a potential difference of each cover to be 0 (equipotential), thereby preventing a fault of a secondary battery and an electric shock at the time of maintenance thereof from occurring due to noise.

Abstract: A secondary battery includes a plurality of bare cells including a first bare cell and a second bare cell and a protective circuit module spaced above the plurality of bare cells. A first lead plate electrically connects the protective circuit module and the first bare cell, the first lead plate having a first foot plate electrically connected to the first bare cell. A second lead plate electrically connects the protective circuit module and the second bare cell, the second lead plate having a second foot plate attached to the second bare cell and arranged generally diagonally from the first foot plate with respect to the protective circuit module.

Abstract: In a portable electronic device having a battery compartment and a removeable cover therefor, the battery compartment and cover are configured to accommodate batteries of at least two different sizes.

Abstract: A battery cover latching assembly includes a body member defining a guiding slot, a battery cover slidably mounted to the body member, and an elastic member. The battery cover includes a resisting block. The resisting block is slidably received in the guiding slot. The elastic member abuts against the resisting block.

Abstract: Provided is a battery capable of providing both fixing durability of a protective film during normal use and peeling easiness of the protective film during operation of a safety valve. A lithium ion secondary battery (100) includes a protective film (140) fixed to a battery case (110) while covering a safety valve part (125) including a breakable portion (126). This protective film (140) has a first fixed portion (145) located around a valve-corresponding unfixed portion (144) and fixed to the battery case (110) and a second fixed portion (147) located more outside than the first fixed portion and fixed to the battery case (110) through an intermediate unfixed portion (146). They are configured such that the first fixed portion (145) first peels off when the safety valve part (125) operates, prompting peeling of the second fixed portion (147), thus releasing gas to the outside.

Abstract: A secondary battery has a bare cell including a can, an electrode assembly in the can and a cap assembly sealing the can. A protective circuit module is on the bare cell, the protective circuit module including a metal protective circuit board.

Abstract: A secondary battery according to the present invention includes a polymer cell in which insulating wing portions are provided on lead tabs and a top case assembled to the polymer cell and having an evasion portion to reduce interference with the insulating wing portions. A secondary battery can reduce interference which occurs between an insulating wing portion having an irregular shape. Further, as a result, it is possible to reduce the variance of the external dimension of an inner pack and achieve a more stable manufacturing process of the inner pack, and increase the reliability and competency of the inner pack to which the polymer cell is applied.

Abstract: An electricity storage device has: an enclosed container; an electricity storage unit contained in the enclosed container; a coolant, contained in the enclosed container, for cooling the electricity storage unit; and protrusions that extend into the coolant and conduct the heat of the coolant to a top lid of the enclosed container. The protrusions are formed on the top lid.

Abstract: An electronic device includes a main body and a cover. The main body includes an elastic latch. The latch has a latching opening. The cover is coupled to the main body and forms a receiving tab. The latch is at least partially deformable to allow the receiving tab to enter the latch opening and engage the latch.

Abstract: An battery end cap is disclosed for limiting current flow of a battery. The battery end cap includes a cap terminal, the cap terminal comprising an external conductive surface and an internal conductive surface. The battery end cap further includes a pressure sensitive switch, wherein when the battery end cap is installed on a battery, the pressure sensitive switch is configured to bias the internal conductive surface of the cap terminal from being in electrical communication with an electrical source of the battery. Electrical communication between the cap terminal and the electrical source is created or maintained when a sufficient external pressure is applied to the battery end cap and electrical contact between the cap terminal and the internal electrical source is broken without the sufficient external pressure.

Abstract: A battery terminal cover is provided. The battery terminal cover has a base arranged to cover a battery terminal root, a tower arranged to cover a battery terminal post, and a projection coupled to the battery terminal cover. The projection has a retention area for temporary storage of a later used fastener for coupling to the battery terminal post. A battery is also provided.

Abstract: An electrochemical storage cell retention system is provided for storage cells (1) with a container comprising a bottom portion (12), and a top portion (11) provided with electrical output terminals (13, 14). The system comprises a first tray member (2) provided with through openings (20) and a plurality of adapter cups (3), each adapter cup (3) being designed to be placed on the top portion (11) of a storage cell (1) and to be received in one of the through openings (20) of the first tray member. The retention system is modular and mechanically strong.

Abstract: An electric storage device includes: an electrode assembly including a positive electrode sheet, a negative electrode sheet, and a separator for insulating between the electrode sheets; positive and negative current collectors disposed on both ends of the electrode assembly; a case in which the electrode assembly and the current collectors are housed and that fixes one ends of the positive and negative current collectors; and a support member extending from the positive current collector to the negative current collector.

Abstract: A battery pack includes a battery including a battery element covered with a packaging member, a battery protection circuit board, a covering material, and a rippable portion formed in a part of the covering material. The battery element includes a positive electrode and a negative electrode which are spirally wound or stacked through a separator. The covering material collectively covers the battery and the battery protection circuit board. The rippable portion rips open due to a gas generated from the battery in the event of an abnormal condition to form a gas release hole for releasing the gas outside the battery pack.

Abstract: A pouch-type secondary battery including: an electrode assembly having a first electrode plate, a second electrode plate, and a separator disposed therebetween; and a pouch case including a first case part having a pouch to house the electrode assembly, a second case part disposed over an open end of the pouch, and sealing portions to seal the second case part to the first case part. The sealing portions include wing portions that are bent to cover opposing sides of the pouch, and bent portions that are bent from the wing portions, to cover a bottom surface of the pouch.

Abstract: A secondary battery having a cap assembly, including an electrode assembly; a case in which the electrode assembly is located; a cap assembly having a cap plate coupled to and hermetically sealing the case. A terminal member has a head with a stepped protrusion penetrating the cap plate and insulated from the cap plate by an insulating member. The stepped protrusion presses the insulating member in multiple steps. The terminal member is connected to a positive or negative electrode terminal of the electrode assembly.