Abstract: A battery module, which can improve safety against overcharge and puncture on a module basis. The battery module includes a plurality of battery cells arranged in a row, each of the plurality of battery cells including terminals and a safety vent, a plurality of bus bars connecting the plurality of battery cells, a duct mechanically coupled to the plurality of battery cells to seal the safety vent, an extension plate electrically connected to a first battery cell among the plurality of battery cells and extending toward the duct, and a short-circuit plate electrically connected to a second terminal of a second battery cell among the plurality of battery cells and extending toward the duct, wherein the duct is electrically connected to the extension plate and is spaced apart from the short-circuit plate.

Abstract: A prismatic secondary battery includes a prismatic hollow outer body having a mouth and a bottom and storing an electrode assembly, a positive electrode collector, a negative electrode collector, and an electrolyte, a sealing plate sealing up the mouth of the prismatic hollow outer body, and a positive electrode terminal and a negative electrode terminal attached to the sealing plate; the sealing plate includes a gas release valve at the center between the positive electrode terminal and the negative electrode terminal and includes an electrolyte pour hole on one side of the gas release valve and, on the other side on the front face, a concaved flat face with a height lower than that of the peripheral portion; and the concaved flat face is formed with an identification code.

Abstract: Provided is a secondary battery module having a through type cool channel for preventing contaminated air generated from a pouch type cell from being introduced into a vehicle, and more particularly, a secondary battery module having a through type cool channel capable of preventing contaminated air generated from battery cells from being introduced into a vehicle and easily cooling heat generated from the battery cells, by sealing an electrode assembly, in which a plurality of battery cells are stacked, by a case, forming a separate gas discharge pipe in the case to discharge the gases to a designated place, and coupling both ends of a partition tube having a cool channel formed therein to contact the battery cells and communicate with an outside of the case.

Abstract: Disclosed herein is a prismatic battery cell including a pouch-shaped battery cell having an electrode assembly mounted in a pouch-shaped battery case, a cell case, in which the pouch-shaped battery cell is mounted, the cell case having a polyhedral shape, and a terminal case including external input and output terminals, to which electrode terminals of the pouch-shaped battery cell are coupled, the terminal case being coupled to one end of the cell case, the terminal case having a polyhedral shape.

Abstract: An energy storage system, in particular a battery having a plurality of battery cells. These battery cells are accommodated in a first container. The first container is separated from a second container by a separating element, which allows for establishing a pressure difference ?p for expansion of a gas out of the first container into the second container.

Abstract: A rechargeable battery includes an electrode assembly that performs charging and discharging operations, a case that accommodates the electrode assembly therein, a cap plate coupled to the case, an electrode terminal connected to the electrode assembly and mounted in a terminal hole of the cap plate, and an insulation member that coats the case. The insulation member has a protruding portion that protrudes from an external circumference of the cap plate along a surface of the cap plate. The protruding portion has an exhaust groove on at least one side thereof.

Abstract: Provided is a lithium ion battery including a battery can, a battery core received in the battery can, electrolyte filled in the battery can, and a battery cover assembled to the battery can. The battery can or the battery cover is provided with a pressure relief valve, and the pressure relief valve is coupled with a mesh cover defining a number of through holes therein. According to the present invention, when thermal runaway occurs to the lithium ion battery, the pressure relief valve breaks timely. Only gases and electrolyte vapor can pass through the mesh cover. Solid particles cannot pass through the mesh cover. Therefore, ignition of the flammable gases, the electrolyte vapor and the high temperature solid particles in the surrounding air afar from the pressure relief valve is avoided and the safety performance of the lithium ion battery can be improved remarkably.

Abstract: A battery module including a plurality of battery cells aligned in one direction, the plurality of battery cells each having a vent on a top surface thereof; and at least one vent cover covering the vent and covering side surfaces of the plurality of battery cells, wherein one vent cover covers outer side surfaces of outermost battery cells among the aligned plurality of battery cells, or a plurality of vent covers cover side surfaces of a battery cell of the plurality of battery cells.

Abstract: A current interruption mechanism for prismatic secondary battery includes a tubular conductive member electrically connected to a positive electrode external terminal, an inversion plate, and a positive electrode collector connected to the inversion plate. The positive electrode collector has a first region that is parallel to a sealing body and a second region that is connected to a positive electrode plate. The boundaries between the first and second regions are disposed further outward than the inner surface of the tubular conductive member, and at least one of the edge portions, other than the boundaries between the first region and second region, is located further outward than the inner surface of the tubular portion of the conductive member. The current interruption mechanism is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc.

Abstract: The present disclose provides a lithium-ion battery with a gas-releasing and explosion-proof safety valve, which comprises a casing and a battery core. The casing includes an opening that is sealed by a thermal cover, on which a safety valve is disposed. The safety valve comprises a safety cover and a pressure filter. A middle portion of the safety cover includes a through hole. The pressure filter is affixed to the middle portion of the safety cover and has numerous pores. The safety cover and thermal cover are hooked together. The present invention offers multiple advantages. Firstly, simplified structure without aging issue enhances the safety and reliability of the battery. Secondly, during operation, gas is ventilated when an internal pressure of the battery reaches a certain threshold value to avoid rupture of the battery casing. Thirdly, with enhanced performance of the battery, the cycle life of the battery is greatly increased.

Abstract: A high-reliability prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock is provided. The prismatic secondary battery includes a second insulating member having a first through-hole, the second insulating member being arranged between a first region of a positive electrode collector and an inversion plate. The first region of the positive electrode collector and the inversion plate are electrically connected to each other through the first through-hole. The second insulating member has a plurality of fixing pawl portions. The fixing pawl portions are hooked and fixed to a fixing portion formed on the outer surface side of the conductive member.

Abstract: A battery container comprising an outer casing surrounding a housing intended to receive at least one electric energy accumulator comprising Lithium hexafluorophosphate, the container comprising a filter comprising a silicon oxide-based material capable of filtering hydrofluoric acid vapours. The filter including an inner casing disposed between the outer casing and the housing of the container, the outer casing comprising an inner face against which the inner casing is secured, and the inner casing completely surrounds the housing.

Abstract: Present embodiments are directed to a battery module including a venting assembly and a method of manufacturing the battery module. The venting assembly may, in certain embodiments, be designed to vent gases from a plurality of battery cells disposed in a housing of the battery module. Each of the plurality of battery cells may include a battery cell vent. The venting assembly may include a lid designed to be coupled to the housing and disposed over the battery cells in the housing. In some embodiments, the lid includes a vent chamber formed in the lid and designed to receive and direct gases vented from the plurality of battery cells away from the battery module.

Abstract: A battery module includes a plurality of cells and a plurality of holders. The plurality of cells are parallelly arranged in a row at intervals. The plurality of cells have explosion-proof valves which are provided therein and which are capable of opening upon an increase in an inner pressure in the plurality of cells. The plurality of holders are arranged among the cells so as to hold the cells. The holders have holder pieces which are integrally formed therein and which cover at least part of the explosion-valves so as to prevent emissions from the explosion-proof valves from being released in all directions.

Abstract: A secondary battery includes a battery unit that has an accommodation space for an electrode assembly, a vent housing that defines a housing space connected with the accommodation space through a first vent hole, the vent housing including a second vent hole through which the housing space is connected with an outside of the secondary battery, a revolving member that is rotatably mounted between a closing position for closing the first and second vent holes and an opening position for opening the first and second vent holes, and first and second sealing caps that are formed at opposite sides of the revolving member with respect to a rotation axis of the revolving member. The first and second sealing caps respectively close the first and second vent holes, when the revolving member is mounted at the closing position.

Abstract: There is a provided a secondary battery capable of preventing unloading and rotating caused by possible vibration or shock by increasing a coupling force among the vent plate, the insulator, and the cap-down that compose the cap assembly of the secondary battery. To increase the coupling force among the vent plate, the insulator, and the cap-down, protrusions and corresponding grooves or holes, and grooves with step areas may be formed. Alternatively, a plurality of insulators may be formed in a divided form. A secondary battery with a reliable cap assembly can be implemented through such a structural change.

Abstract: Disclosed herein is a plate-shaped secondary battery constructed in a structure in which an electrode assembly of a cathode/separator/anode structure is mounted in a battery case, and the battery case is sealed by thermal welding, wherein the secondary battery has at least one-way exhaust member, mounted at a sealed portion, formed at the outer circumference of an electrode assembly receiving part of the battery case, for allowing internal high-pressure gas to be exhausted out of a battery cell and preventing external gas from being introduced into the battery cell. The secondary battery according to the present invention has the effect of effectively exhausting internal high-pressure gas generated during the abnormal operation of the battery, such as overcharge, out of the battery case, while maintaining the sealability of the battery case, thereby simultaneously improving the efficiency and safety of the battery.

Abstract: A battery cell assembly for use in a battery module including a battery cell that includes a positive electrode and a negative electrode and a rigid frame coupled to the battery cell. The rigid frame includes a first frame connector and a second frame connector. The frame is configured to facilitate electrical coupling of the positive electrode of the battery cell with the first frame connector, and to facilitate electrical coupling of the negative electrode of the battery cell with the second frame connector. The first and second frame connectors are configured to interface with frame connectors of other battery cell assemblies to facilitate physical and electrical connection of a plurality of battery cell assemblies disposed in a stacked orientation relative to each other.

Abstract: An electrochemical cell includes a housing having a first end and a vent located at the first end that is configured to deploy from the housing to allow the expulsion of gases from within the cell. The electrochemical cell also includes at least one projection extending outward from the first end adjacent the vent. The at least one projection is configured to prevent accidental deployment of the vent.

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 sealed battery (10) provided by the present invention includes: a current cut-off valve (22); and a connecting member (30) having an engagement hole (34) formed in a location adjacent to the current cut-off valve. The current cut-off valve is conductively connected to the connecting member by joining linearly to a peripheral edge of the engagement hole and/or joining at a surface that is in contact with an inner wall of the engagement hole in a state in which part of the current cut-off valve is fitted into the engagement hole. When an internal pressure of a battery case (40) rises above a predetermined level, the current cut-off valve is deformed outward of the case by the internal pressure, the current cut-off valve is separated from the connecting member, and the electric connection between the connecting member and the current cut-off valve is broken.

Abstract: A cylindrical lithium secondary battery includes an anode and a cathode, capable of occluding or emitting lithium ions; a non-aqueous electrolyte; and a CID (Current Interrupt Device) for intercepting electric current and lowering inner pressure when the inner pressure of the secondary battery is increased. The cylindrical lithium secondary battery may ensure the safety of the battery with respect to overcharging and also at the same time prevent the problem wherein the CID is activated too early, such that the battery stops its operation when the battery is used in a high-temperature environment.

Abstract: A cylindrical lithium ion battery in which an electrode group formed by winding a positive electrode and a negative electrode is housed in a battery case is disclosed. A sealing plate seals an opening of the battery case. An insulating plate having a plurality of openings is provided on a side of the electrode group closer to the sealing plate. The plurality of openings include a first hole with a largest opening area, and a plurality of second holes with opening areas smaller than the opening area of the first hole. An opening ratio of the first hole is 12% or more and 40% or less; a sum of opening ratios of the second holes is 0.3% or more and 10% or less; and a total opening ratio of all the openings is 20% or more and 50% or less.

Abstract: A battery system, in particular a lithium-ion battery system, comprising a discharge line (AL) with an opening for discharging substances which are produced in the battery system, in particular gases, to the surroundings of the battery system.

Abstract: Provided are a battery cell and a battery module including the same, and more particularly, the battery cell can secure safety thereof, by forming an exhaust part in a predetermined region of a sealing part to have a sealing member thicker than the other region of the sealing part so that the exhaust part has relatively weaker adhesive strength than the sealing part not containing the exhaust part, and thus, the adhesive state of the exhaust part is broken when high pressure occurs within the cell due to overheat conditions such as overcharging or inner short circuits to cause a case of the cell to swell, thereby discharging out the substances within a pouch type secondary cell.

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: An electrode group formed by winding a positive electrode plate and a negative electrode plate with a separator interposed therebetween is housed in a battery case, and a sealing plate seals an opening of the battery case. The sealing plate includes an upper metal plate, a valve, and a lower metal plate that are stacked, an insulating plate is placed on a portion of the electrode group near the opening of the battery case, one of the positive electrode plate or the negative electrode plate of the electrode group is connected to the lower metal plate through a lead, the lower metal plate and the insulating plate have a first opening and a second opening, respectively, and a ratio of S2/S1 is within the range of 1.8-3.3, where S1 represents an area of the first opening, and S2 represents an area of the second opening.

Abstract: A lithium secondary battery is equipped with a non-recovering safety valve comprising a valve, which ruptures when the valve opens, and a valve surrounding part that surrounds the valve. The safety valve is further disposed in the valve surrounding part, and has an anti-scattering means that prevents shards, which are produced by the valve rupturing when the valve opens, from scattering outside the battery. The anti-scattering means constitutes an anti-fragmentation part of a form that prevents shards from fragmenting from the valve surrounding part.

Abstract: A lithium ion battery cell includes a graphite cathode, and an excess pressure valve. The excess pressure valve is configured to open in the presence of a predetermined battery cell internal pressure and discharging gases that have been produced inside the battery cell. Such gases are discharged together with graphite particles entrained in the gas. The battery cell further includes a capacitance sensor that has at least one capacitor positioned in the battery cell and configured such that the graphite particles that are entrained in the gas that is being discharged deposit themselves at least in part in a gap that is located between two electrodes of the capacitor and cause a change in the dielectric value in the gap. The change in the dielectric value causes a change in a capacitance of the capacitor.

Abstract: A battery packaging material 1 of this invention has a stretched heat-resistant resin film layer as an outer layer 2 which is laminated and integrated on one surface of an aluminum foil layer 4 through a first adhesive layer 5; and a non-stretched thermoplastic resin film layer which is laminated and integrated as an inner layer 3 on the other surface of the aluminum foil layer 4 through a second adhesive layer 6, in which the second adhesive layer 6 is an adhesive layer which is formed by a dry lamination method and whose melting point is 60° C. to 100° C., the adhesion strength of the inner layer 3 and the aluminum foil layer 4 is 3.0 N/15 mm width or more at 80° C., and the adhesion strength is 2.0 N/15 mm width or less at 120° C.

Abstract: A modular frame includes a first row of cell slots configured to receive first prismatic cells of a battery pack system. A second row of cell slots is configured to receive second prismatic cells of the battery pack system. A central interface beam is disposed between the first row of cell slots and the second row of cell slots. The central interface beam includes a first side and a second side. The first side is configured to receive terminals of the first prismatic cells. The second side opposes the first side and is configured to receive terminals of the second prismatic cells.

Abstract: A battery system including a passive cooling system for cooling a plurality battery cells during normal operation and during overheating of the battery cells. The passive cooling system may include a housing, a cooling fluid (coolant pool) within the housing, and a plurality of dividers between each of the plurality of battery cells.

Abstract: A bus bar module may have a bus bar including a battery side terminal portion and a connection portion. The battery side terminal portion may electrically connect electrode terminals of two adjacent battery cells of a battery assembly. The connection portion may electrically connect the battery side terminal portion and a terminal of a circuit side member associated with the battery assembly. The bus bar may be configured as a single member.

Abstract: A bus bar module may include a circuit side member associated with a battery assembly having a plurality of battery cells arranged next to each other in an arrangement direction, and a bus bar electrically connecting the circuit side member with the battery cells of the battery assembly. A gas discharge duct may be integrated with the circuit side member and configured to allow flow therethrough of gas discharged from safety valves associated with the battery cells.

Abstract: The present disclosure provides a system, method, and apparatus for battery thermal management. In one or more embodiments, the disclosed method involves sensing, with at least one temperature sensor, a temperature of at least one battery cell, where at least one battery cell is at least partially submerged within a liquid contained within a battery case. The method further involves comparing the temperature of at least one battery cell with a maximum threshold temperature, and commanding a cooling unit to be activated when at least one processor determines that the temperature of at least one battery cell is above the maximum threshold temperature. Further, the method involves circulating, by at least one pump, the liquid via tubing from the battery case to the cooling unit back to the battery case.

Abstract: A hermetically sealed battery is provided with a sealing member for air-tightly sealing the through-hole of a battery case from the outside. The sealing member has: a covering member secured to the battery case from the outside; an insertion portion inserted into the through-hole; an annular pressure contact portion in air-tight pressure contact with the hole surrounding portion of the battery case; and a connecting portion disposed between the insertion portion and the annular pressure contact portion so as to be integral with the insertion portion and the annular pressure contact portion. The connecting portion is provided with an annular groove surrounding the insertion portion.

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: According to one embodiment, there is provided a battery having a plurality of current collector tabs extended from a plurality of points of a current collector of at least one electrode of a positive electrode and a negative electrode. The battery further has a lid and a lead. The lead has a current collector tab junctional part connected with the current collector tabs, a lid junctional part fixed to the lid, and a vibration absorber part linking the current collector tab junctional part to the lid junctional part.

Abstract: A terminal-cover assembly for a secondary battery comprises a cover and at least two terminal assemblies. The cover is arranged on one side of the battery housing and has several through-holes where two terminal assemblies are installed. Each terminal assembly has an electric-conduction terminal penetrating the through-hole. The electric-conduction terminal has an installation member at one end thereof and at least one fixing element with a female thread. A fastening element with a male thread is inserted through the installation member and engaged with the female thread of the fixing element. The fixing element and fastening element are made of an identical material. Thereby, the fastening element and the fixing element can cooperate with electric-conduction plates to cascade secondary batteries to form a battery assembly, neither damaged by hardness difference nor loosened by different extents of deformations resulting from different thermal expansion coefficients.

Abstract: A battery module includes a cell unit, a first end plate, and a binding band. The cell unit includes a plurality of battery cells arranged in a first direction. The first end plate is located on one side of the cell unit in the first direction. The binding band extends in the first direction and is coupled with the first plate so as to bind the first end plate and the cell unit. The first end plate has an external terminal surface directed to an opposite side with respect to the cell unit in the first direction. An external terminal is connected to the external terminal surface. The binding band is located on a side surface of the cell unit and is coupled with the external terminal surface.

Abstract: Disclosed herein is a cap assembly loaded on an open upper end of a cylindrical container of a battery configured to have a structure in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, the cap assembly including a safety vent connected to a current interruptive device (CID) for safety, a protruding top cap connected to the safety vent along an outer circumference thereof, and a gasket mounted at an outer circumference of the top cap, wherein a cathode tab is attached to a cathode active material-uncoated portion of the cathode by welding and the gasket is provided with at least one groove depressed upward from an outer circumference of a lower end of the gasket for easy welding between the CID and the cathode tab at the time of manufacturing the battery.

Abstract: A battery module has a cell unit including battery cells and a battery monitoring element attached to the cell unit. The battery cells are arranged in a first direction. The battery cell includes pressure release section for releasing a pressure in the battery cell. The cell unit has side surfaces including at least one internal pressure release section surface which is a surface where the internal pressure release section is disposed. The battery monitoring element is disposed on a non internal pressure release section surface which is different from the internal pressure release section surface.

Abstract: A secondary battery includes an electrode assembly including a first electrode plate including a first non-coating portion, a second electrode plate including a second non-coating portion, and a separator between the first and second electrode plates; an insulating bag accommodating the electrode assembly and including first and second connection members electrically connected to the first and second non-coating portions, respectively; a case accommodating the electrode assembly and the insulating bag; a cap plate sealing an opening of the case; and first and second electrode terminals electrically connected to the first and second connection members, respectively. An upper part of the insulating bag having an opening is coupled to a lower surface of the cap plate.

Abstract: Disclosed are an electrolyte for a secondary battery, and a secondary battery including the same, the electrolyte including an electrolyte salt; an electrolyte solvent; and a compound generating heat through oxidation at voltages higher than drive voltage of a cathode, wherein the compound can decompose or evaporate electrolyte components by oxidation heat, thereby causing gas generation. Also, the compound is included in an internal pressure increase accelerant for a battery. Upon overcharge, since a compound subjected to oxidation at voltages higher than normal drive voltage of a cathode generates heat, electrolyte components can be decomposed or evaporated, thereby generating gas by the oxidation heat. Accordingly, it is possible to operate a safety means of a battery, without using an internal pressure increasing material directly generating gas through oxidation at overcharge voltage as the electrolyte additive, and thus to improve the overcharge safety of a secondary battery.

Abstract: An electric storage device is provided with an electrode assembly including a positive electrode plate and a negative electrode plate; a case for housing the electrode assembly; a positive-electrode external terminal arranged on an outer surface of the case and electrically connected to the positive electrode plate; a negative-electrode external terminal arranged on an outer surface of the case and electrically connected to the negative electrode plate; and a gas exhaust valve formed in a region of the case on the opposite side of a region where the positive-electrode external terminal and the negative-electrode external terminal are arranged.

Abstract: A power supply apparatus that supplies electric power to an external electrical device through a cable is provided with a battery pack, and a battery pack case that houses the battery pack. The battery pack case includes a case body having an opening through which the battery pack to be taken in and out, a cover member that liquid-tightly closes the opening of the case body, in which at least one of the case body and the cover member is formed with a ventilation hole so as to penetrate therethrough, and a filter apparatus that does not allow liquid to pass therethrough but allows gas to pass therethrough is provided in the ventilation hole.

Abstract: A seal arrangement for a housing for receiving a battery has a valve arrangement for compensating a pressure differential between an interior of the housing for receiving a battery and an environment outside of the housing for receiving a battery. A desiccant is provided for removing moisture from a gas contained in the interior or gas that flows into the housing for receiving a battery. A chamber is provided that is connected to the valve arrangement and that contains the desiccant, wherein the chamber and the valve arrangement are in gas-conducting communication with each other.

Abstract: In general, according to one embodiment, there is provided a battery. This battery includes a container, a lid, a gas-relief vent, an electrode group, an intermediate lead, and a terminal lead. The gas-relief vent is provided in the lid. The intermediate lead includes a first lead-joint part, an electrode-group-joint part, and a leg part. The leg part connects the first lead-joint part and the electrode-group-joint part to each other. The first lead-joint part and the electrode-group-joint part are located on planes different from each other.

Abstract: Apparatus and methods are provided for energy storage devices capable of mitigating the pressure differentials between adjacent bi-polar units using a pressure equalization valve at a projection from a substrate of a bi-polar unit, which prevents the pressure equalization valve from being submerged by free liquid in the unit.

Abstract: A rechargeable battery, which can improve safety, control operating level of a short-circuiting member, prevent external moisture from being induced to a short-circuiting member to cause a short-circuit, and can efficiently utilize an internal space. In an embodiment, the rechargeable battery includes an electrode assembly, a collector plate electrically connected to the electrode assembly, a case housing the electrode assembly and the collector plate, a cap plate sealing the case and having a short-circuiting groove formed at a lower portion thereof, and a short-circuiting member formed between the cap plate and the collector plate, wherein the short-circuiting member is coupled to the short-circuiting groove of the cap plate.