Abstract: A secondary battery includes an electrode assembly including a positive electrode, a negative electrode, and separators which are wound together, current collecting plates attached to the electrode assembly, a case configured to accommodate the electrode assembly and the current collecting plates, and a cap configured to cover an opening of the case and electrically connect to the current collecting plates. Each of the current collecting plates includes a current collecting part and a welding part. The current collecting parts electrically connect to the electrode assembly. The welding part is welded to the electrode assembly and the current collecting part.

Abstract: A secondary battery including a case having an opening; an electrode assembly housed in the case; at least one current collector coupled to an uncoated portion of the electrode assembly and forming an electrode terminal, wherein the case has a coupling groove recessed toward the at least one current collector; and a cap plate coupled to seal the opening of the case.

Abstract: A secondary battery that can easily adjust power by disposing a plurality of jelly-rolls for the secondary battery in a case and connecting electrodes of the jelly-rolls in either electrical series or in electrical parallel, with corresponding welds. The secondary battery is constructed with a plurality of jelly-rolls each having a first electrode tab and a second electrode tab protruding from the jelly-roll, a case having an opening accommodating insertion of the jelly-rolls, and a cap plate sealing the opening of the case and bearing electrode terminals on a bottom side of the cap plate facing the jelly-rolls. The first electrode tabs protruding from the jelly-rolls are electrically connected to the electrode terminals and the second electrode tabs protruding from the jelly-rolls are electrically connected to the cap plate.

Abstract: An electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, negative portion and removable portion. The mandrel has two faces with grooves dimensioned to accommodate positive and negative feedthrough pins. Electrodes are welded to the mandrel using an ultrasonic weld to the face on which the electrodes are attached. An additional weld is made to at least one ultrasonic weld using a through-mandrel laser weld, incident on the opposite face from which the ultrasonic weld. The laser melts the mandrel such that molten mandrel material fills the area under the foil at the area of the ultrasonic weld, the surface area of the foil being significantly increased by knurls formed by ultrasonic welding. Electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. The mandrel allows tighter wrapping of the jelly roll assembly increasing battery miniaturization.

Abstract: A carrier matrix for battery cell connectors 1, comprising a carrier formed from a non-conductive material, at least one vertical receiver 34 formed in a column to vertically receive a battery cell connector 1, at least two columns arranged horizontally next to one another and a horizontal receiver 36 formed to horizontally receive a battery cell connector 1 connecting batteries arranged next to one another into columns.

Abstract: A rechargeable battery including an electrode assembly that is chargeable and dischargeable, the electrode assembly including a first assembly portion and a second assembly portion; a case accommodating the electrode assembly therein; a cap plate coupled to the case; and an electrode terminal group connected to the electrode assembly through a lead tab, the electrode terminal group being in a terminal hole of the cap plate, wherein the electrode terminal group includes three electrode terminals that are selectively connected to first electrodes and second electrodes of the first assembly portion and the second assembly portion.

Abstract: A wound electrode body is fabricated by laminating and winding positive and negative electrode sheets together with a separator therebetween for insulation. On both positive and negative electrode side ends of the wound electrode body, laminates of current-collecting foil layered portions of the electrode sheets are bent or folded f toward the outer peripheral side to be separated into two. The separated laminates and forked connector leaves are overlapped and clamped between an ultrasonic chip and an anvil. Then, they are welded. The forked connector leaves are arranged such that no opposing forked connector leaf is present in the direction of a line normal to the forked connector leaf, so that the anvil does not have to be cantilevered. This allows welding by using the ultrasonic chip and the anvil without interfering with the collector rs. As a result, the quality of welding is improved.

Abstract: A battery structure including a first battery unit, a second battery unit, a separation membrane and a packing is provided. The first and the second battery units respectively include at least one anode, at least one cathode and a dielectric layer located between the at least one anode and the at least one cathode close to each other. The at least one anode and the at least one cathode are alternately stacked with each other. The second battery unit is stacked on the first battery unit. A dimension of the first battery unit is smaller than that of the second battery unit. The separation membrane is disposed between the first and the second battery units. The packing covers the first and the second battery units and the separation membrane. An electronic device including the battery structure, and a manufacturing method of the battery structure, are further provided.

Abstract: The positive electrode substrate exposed portions or the negative electrode substrate exposed portions, or both, of an electrode assembly is split into two groups, and therebetween is disposed an intermediate member made of a resin material and holding one or more connecting conductive members. Collector members for the substrate exposed portions split into two groups is electrically joined by a resistance welding method to the substrate exposed portions split into two groups, together with the connecting conductive member(s) of the intermediate member. The resin material portion of the intermediate member protrudes, in the extension direction of the substrate exposed portions split into two groups, beyond the ends of the substrate exposed portions split into two groups and the ends of the collector member to a prismatic outer can. This structure enables enhanced resistance between the substrate exposed portions and the collector member and curbs variation in the welding strength.

Abstract: An apparatus is provided that includes a two or more cell elements stacked internally to create a single cell with a non-uniform height. A first bus bar may electrically couple to a first side or first end of the cell elements in order to connect the terminals of the battery elements. A second bus bar may electrically couple to a second side or second end of the cell elements in order to connect the terminals of the battery elements.

Abstract: A rechargeable battery including an electrode assembly; a case in which the electrode assembly is installed; a cap assembly coupled to an opening of the case and to an externally protruded terminal, the cap assembly including a cap plate; a first gasket between the terminal and the cap plate; and a second gasket between the terminal and the cap plate, the second gasket having a blocking portion overlapped with the first gasket.

Abstract: Embodiments provide a secondary battery, which can suppress deformation of an electrode assembly and a current collector by installing a damping member between a non-coating portion of the electrode assembly and a can. In one embodiment, the secondary battery includes a can having an accommodating space and an open top portion; a plurality of electrode assemblies inserted into the can; a current collector connected to the non-coating portion of the electrode assembly; a damping member made of an elastic material between the electrode assembly and the can; and a cap plate sealing the can.

Abstract: A battery having a cooling apparatus for temperature control of the battery is provided. The battery has a plurality of individual cells connected in parallel and/or in series with one another using cell connectors. The individual cells are attached to the cooling apparatus such that they can be prestressed by means of the cell connectors.

Abstract: An electrode plate of a secondary battery includes an electrode current collector, an active material coated portion on at least one surface of the electrode current collector, and an uncoated portion on the electrode current collector, the uncoated portion including pressed portions extending from a boundary of the active material coated portion and the uncoated portion to a distance on the uncoated portion in a widthwise direction of the electrode current collector.

Abstract: According to an embodiment, a battery includes a cap plate, the cap plate having an opening penetrating therethrough and having at least a first protrusion extending from a first side, an electrode terminal extending through the opening in the cap plate, a collector extending from the electrode terminal, and a gasket interposed between a portion of the electrode terminal and the first side of the cap plate, the first protrusion extending through the gasket and the collector.

Abstract: In a stack type battery containing a stacked electrode assembly in which a positive electrode plate having a positive electrode current collector tab extending therefrom and a negative electrode plate having a negative electrode current collector tab extending therefrom are alternately stacked interposing a separator therebetween, a through portion for positioning that passes through in the thickness direction is formed in at least one of the positive and negative electrode current collector tab, and the width at the through portion-unformed position of the positive or negative electrode collector tab is 50 mm or more, and the width of the through portion for positioning is 10% or less of the width at the through portion-unformed position of the positive or negative electrode current collector tab.

Abstract: A negative current collector includes a base, which is fixed to a cover of a battery and is electrically connected to a negative external terminal, and a leg which projects from the base and is electrically connected to a negative electrode in a power generating element. There is provided a rib projecting in the same orientation as that of the leg along at least a part of the outer peripheral edge of the base.

Abstract: A battery pack includes a plurality of unit batteries; at least one bus bar electrically connecting electrode terminals of unit batteries of the plurality of unit batteries; and a bus bar holder including a holder body extending in a lengthwise direction, and at least one bus bar receiver on the holder body and mounting a respective bus bar of the at least one bus bar thereon, the at least one bus bar receiver having at least one connection hole formed therethrough, wherein the at least one bus bar is connected to an electrode terminal of the electrode terminals through the at least one connection hole.

Abstract: A battery pack, or battery pack module, is provided that is configured to respond to a short circuit of moderate current in a manner that minimizes the risk of an initial thermal runaway event propagating throughout the battery pack/battery pack module. In general, the battery pack/battery module allows pre-selection of which cell of the cells comprising the battery pack/battery pack module will be the last cell to respond to the short circuit. As a result, a thermal isolation barrier may be used to separate the preselected cell from the other cells of the battery pack/battery pack module, thereby minimizing the risk of excessive heating and extensive collateral damage.

Abstract: There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units.

Abstract: The present disclosure relates to an electrode assembly formed by stacking a plurality of electrode units, the electrode assembly including: two or more steps formed by stacking three or more types of the electrode units having different areas, wherein an array of electrode units having a maximum area among the electrode units is positioned in the interior of the electrode assembly, and electrodes having different polarities face each other at an interface between the electrode units having different areas.

Abstract: A battery pack which can improve welding efficiency of a lead plate by performing welding in a state in which the lead plate is in close contact with a bare cell, and can prevent leakage of an electrolyte by preventing welding failure of the lead plate. The battery pack includes a bare cell having an electrode terminal protruding on a first surface of the bare cell, a circuit module disposed on the first surface of the bare cell, and a first lead plate coupled to one side of the circuit module and connected to the first surface of the bare cell. The first lead plate includes at least one bent portion, and a first notch recess is formed in the at least one bent portion.

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 assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.

Abstract: Provided are a bi-cell for a secondary battery having improved stability which may reduce shrinkage of a separator, and a method of preparing the bi-cell. The bi-cell for a secondary battery having improved stability according to an exemplary embodiment of the present invention is characterized in that a cathode and an anode are alternatingly disposed in a state in which the cathode has one more layer than the anode or the anode has one more layer than the cathode, separators having a bigger size than the cathode and the anode and insulating the cathode and the anode are disposed between the cathode and the anode, and edges of an upper separator and edges of a lower separator, which face to each other having the cathode and the anode disposed therebetween, are attached to each other to form fused portions.

Abstract: Provided herein are electrochemical cells having improved heat collection and transfer systems. For example, one electrochemical cell includes a drawn can having a blind side and a second side opposite the blind side. The cell also includes a positive terminal disposed in the blind side of the can and electrically coupled to at least one positive electrode disposed within the can and a negative terminal disposed in the blind side of the can and electrically coupled to at least one negative electrode disposed within the can. The cell further includes a base coupled to a substantially flat edge disposed on the second side of the can. A bottom surface of the base is adapted to maintain a substantially flat configuration when coupled to a heat sink.

Abstract: A battery including an electrode assembly having a positive electrode, a negative electrode and a separator interposed between the electrodes, a container housing the electrode assembly, a tab attached to a first side of an uncoated region of the electrode assembly, the tab having a terminal, a first insulator interposed between the tab and a first inner surface of the container, and a cap assembly closing the container and having the terminal passing therethrough.

Abstract: A protective circuit board includes a printed circuit board, the printed circuit board including a first region and a second region, at least one safety device on the first region of the printed circuit board, the first region being thinner than the second region along a direction perpendicular to a contact plane between the printed circuit board and the safety device, and an external connection terminal on the printed circuit board.

Abstract: A battery pack including: a bare cell; a holder disposed at an end of the bare cell, having a connection groove on a side surface thereof; a protection circuit board seated in the holder; and an outer case disposed upon a side of the bare cell, having a connection protrusion mated with the connection groove, to secure the holder. Another battery pack includes: a bare cell including an electrode assembly and an cell case to accommodate the electrode assembly, including an outer casing and a inner casing, the cell case having a connection protrusion disposed at an edge of at least one of the outer and inner casings; a holder disposed at an end of the bare cell, having a connection groove to mate with the connection protrusion and thereby secure the holder; and a protection circuit board seated in the holder.

Abstract: Disclosed herein is an electrode assembly configured to have a structure in which one bi-cell and at least one monocell are folded in a state in which the bi-cell and the monocell are arranged on a continuous separation film.

Abstract: A vehicle propulsion system comprising a plurality of solid state rechargeable battery cells configured to power a drivetrain. In accordance with once aspect of the invention, a transportation system that is powered at least in part by electricity stored in the form of rechargeable electrochemical cells. According to an embodiment of the present invention, these cells are combined in series and in parallel to form a pack that is regulated by charge and discharge control circuits that are programmed with algorithms to monitor state of charge, battery lifetime, and battery health.

Abstract: A secondary battery including a case having an internal space; an electrode assembly in the case, the electrode assembly including a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and a non-coating portion; a collector plate, the collector plate including a plate section and a protrusion extending from the plate section, the protrusion being inserted into and coupled to the non-coating portion; a collector terminal coupled to one end of the collector plate, the collector terminal protruding upwardly from the case; and a cap plate coupled to a top end of the case and sealing the case.

Abstract: A stacked energy storage device (ESD) has at least two cell segments arranged in a stack. Each cell segment may have a first electrode unit having a first active material electrode, a second electrode unit having a second active material electrode, and an electrolyte layer between the active material electrodes. Variable volume containment may be used to control the inter-electrode spacing within each cell segment. In some embodiments, one or more dynamic flexible gaskets may be included in each cell segment to seal the electrolyte within the cell segment and to deform in preferred directions. In some embodiments, hard stops may set the inter-electrode spacing of the ESD.

Abstract: The invention relates to a battery, particularly a lead storage battery, having at least one battery cell connector element (20) comprising a substantially prismatic base body (22) extending along a longitudinal axis (L) for connection to a plurality of pole flanges on a lower face (26) of the base body (22) and a contact lug (24) disposed adjacent to a contact-lug-side end face (30) of the base body (22) on the side of the contact lug, said contact lug being connected to the base body as one piece. A second groove (46) formed in the base body (22) and running to the lower face (26) is provided according to the invention.

Abstract: An electrode terminal connection body, which is configured to electrically connect a positive electrode terminal and a negative electrode terminal that are formed of mutually different kinds of metals, includes a positive electrode terminal connection part formed of the same kind of metal as a metal of the positive electrode terminal, and a negative electrode terminal connection part formed of the same kind of metal as a metal of the negative electrode terminal. The positive electrode terminal connection part and the negative electrode terminal connection part are connected via an interposing part formed of a metal that has an ionization tendency between the metal of the positive electrode terminal and the metal of the negative electrode terminal.

Abstract: A battery module includes a plurality of rechargeable batteries having terminals, bus bars electrically connecting the terminals of the rechargeable batteries, connection parts protruding from the bus bars, and transmission wires electrically connecting the connection parts to a battery management system (BMS), the transmission wires being configured to transmit voltages of the rechargeable batteries to the BMS.

Abstract: A battery cell interconnect and voltage sensing assembly and method are provided. The assembly includes a frame member having a rectangular ring-shaped peripheral wall with first, second, third and fourth wall portions. The frame member further includes a central plate portion. The assembly further includes an electrical interconnect member electrically that is coupled to an electrical terminal of a battery cell. The electrical interconnect member has a tab that extends through an aperture in the central plate portion. The assembly further includes a circuit board and an encapsulation portion that is bonded to and covers a side of the circuit board.

Abstract: A rechargeable battery including a collector plate having a fuse hole and a fuse protrusion, increasing the reliability of the fuse hole in view of its functionality as a fuse while strengthening a section where the fuse hole is formed, thereby improving safety of the rechargeable battery. A rechargeable battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a case containing the electrode assembly; and a collector plate electrically connected to the first electrode plate and including a fuse portion including a fuse hole formed therein and a fuse protrusion extending from a first side of the fuse portion adjacent a first end of the fuse hole.

Abstract: A rechargeable battery includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a first collecting plate electrically coupled to the first electrode plate, the first collecting plate including a fuse reinforcement part having a fuse opening and a reinforcement protrusion protruding from a periphery of the fuse opening; a case housing the electrode assembly and the first collecting plate; and a cap assembly coupled to the case and comprising a cap plate.

Abstract: The purpose of the present invention is to provide simpler and more reliable electrical wiring than a lead wire. A battery pack includes at least one rechargeable secondary battery (1), a battery holder (70) for housing the secondary battery (1) in a predetermined position, a pack circuit board (74) having a mounted electronic circuit for monitoring the secondary battery (1), and an electrical connection wire (85) for electrically wiring the pack circuit board (74). Here, the electrical connection wire (85) is a bent metal wire. Because wiring is realized using metal wire, and the metal connection is secured after the wiring has been completed, movement and deformation due to vibrations and other factors, such as that which occurs in the case of conventional lead wires, are avoided, and reliability can be improved.

Abstract: A method of making a hermetically-sealed feed-through device includes inserting an elongate conductor or conductors within a hollow portion or portions of a plastic insulator body and inserting the plastic insulator body within a hollow outer jacket to form an assembly. At least one of the conductor or conductors, insulator body, or jacket of the assembly has a plurality of circumferential grooves. Thereafter, the assembly is crimped and/or is swage-crimped at ambient temperature to cause the materials of the conductor or conductors, insulator body, and outer jacket to be displaced or extrude into the grooves thereby creating mechanical interlocks between the conductor or conductors, insulator body, and outer jacket. Additional methods and feed-through devices made by the methods are also disclosed.

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

Abstract: A battery pack having a case where connection tabs can be accurately positioned within the case and where welding holes in the case are formed to provide access to a welding rod and to allow heat to escape. Connection tabs are fixed into a lower case, batteries are arranged in the case, and then a welding process is performed to attach electrode tabs of the battery to the connection tabs so that the batteries can be connected together, to an external terminal and to a protection circuit module.

Abstract: Disclosed is a secondary battery including a plurality of electrode assemblies. The secondary battery includes a first electrode assembly including a first cathode, a first separator and a first anode, and a second electrode assembly including a second cathode, a second separator and a second anode, wherein, When an electrode plate area of the second electrode assembly is smaller than that of the first electrode assembly, a cross-sectional thickness of the second electrode assembly is larger than that of the first electrode assembly.

Abstract: It is an object of the present invention to provide a battery in which current collecting connector 2 and 3 and groups 1d and 1e of metal foil of a power generating element 1 can be easily connected, respectively, and a method of manufacturing the same. First plate portions 2b and 3b which respective protruding ends of metal foil of the groups 1d and 1e of metal foil of the power generating element 1 come in contact with or close to and second plate portions 2c and 3c protruding from the first plate portions 2b and 3b toward the power generating element 1 and disposed only at one outer side portions of the groups 1d and 1e of metal foil are provided to the other portions of the current collecting connectors 2 and 3 of the invention and the groups 1d and 1e of metal foil are welded to the second plate portions 2c and 3c.

Abstract: A current collecting member includes first portion second portions. The second portion includes a base portion the first end portion of which is connected to the second end portion of the first portion, a twisted portion the first end portion of which is connected to the second end portion of the base portion, and an insertion portion the first end portion of which is connected to the second end portion of the twisted portion and which is inserted into a winding center of the electrode assembly, so as to be electrically connected to the electrode assembly.

Abstract: A battery pack including a housing connectable to and supportable by a hand-held power tool; a first battery cell defining a first axis and having opposite first cell ends; a second battery cell defining a second axis and having opposite second cell ends; a third battery cell defining a third axis; and a terminal for electrically connecting the battery pack to the hand-held power tool. The second battery cell and the third battery cell may be arranged with the second axis and the third axis in a common plane, the first battery cell may be arranged with the first axis non-parallel to the common plane and have one remote first cell end. The terminal may be supported on the housing, in the direction of the first axis, between the one first cell end and the common plane and, in a direction of the second axis, between the second cell ends.

Abstract: A battery, in particular a lead-acid rechargeable battery, having at least one battery cell connecting element, which has a connector, which has at least one side surface, for connection to at least one plate on a lower face of the connector, and a welding lug, which is electrically conductively connected to the connector and has a recess which is bounded by a boundary, wherein, in a section which is adjacent to the side surface of the connector, the boundary has a profile which corresponds to a contour of the side surface of the connector.

Abstract: A rechargeable battery according to an embodiment of the present invention includes an electrode assembly, a case, electrode terminals, a cap plate, and current collecting plates. The electrode assembly includes a first electrode, a separator, and a second electrode. The case contains the electrode assembly. The electrode terminals are electrically connected to respective electrodes. The current collecting plates have support protrusions inserted into an interior of the electrode assembly, and welding protrusions welded to lateral ends of the electrode assembly.

Abstract: A modular battery includes: a first battery cell having a first electrode surface; a second battery cell having a second electrode surface; a compressible interconnector connecting the first battery cell and the second battery cell; and a polymeric material holding the first battery cell against the second battery cell with the interconnector in a compressed state. A method is also provided.