Abstract: A battery module includes: a cell stack including a plurality of unit cells arranged in a first direction; and an insulating member around the plurality of unit cells; a plurality of module housings, each of the module housings including a plurality of receiving parts and receiving the cell stack; and a coupling part, and each of the receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack, and the fixing wall includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack in the first direction, and the coupling part is configured to be coupled to the coupling part of an adjacent battery module.

Abstract: A sealing lid for sealing a compartment of a supercapacitor housing electrodes and electrolytic material is described, the supercapacitor comprises: a casing internally defining the compartment and having a longitudinal axis, a side wall extending around the longitudinal axis, an axial bottom wall and an axial opening for accessing to the compartment arranged on an axially opposite side of the side wall with respect to the end wall; and at least one terminal electrically connected to one of the electrodes and protruding outside the compartment through the axial opening; the lid is adapted to close the axial opening and comprises an elastomeric element having: an internal through-hole adapted to receive the terminal and delimited by an internal wall adapted to cooperate in fluid-tight contact with the terminal; and a peripheral wall adapted to cooperate in fluid-tight contact with the side wall.

Abstract: An electrochemical energy storage device, which relates to the technical field of electrochemical energy storage devices. The device comprises: an upper connecting bar (4), a rubber piece (3) that has an insulating and sealing effect, a housing (7) and a rolled core (5); the housing (7) is cylindrical and is provided with an opening at at least one end, and the rubber piece (3) and the housing (7) are sealedly connected by means of a waisted section (9) provided on the housing (7); the rolled core (5) is provided in an inner cavity of the housing (7); one end of the upper connecting bar (4) penetrates the rubber piece (3) so as to be conductively connected to a negative electrode welding piece (1), while the other end of the upper connecting bar (4) is conductively connected to the rolled core (5); the rolled core (5) is conductively connected to the housing (7) by means of a lower connecting piece (6); and a positive electrode welding piece (8) is conductively connected to the housing (7).

Abstract: A rechargeable battery includes: a case accommodating an electrode assembly and having an opening; a cap assembly including a cap plate coupled to the case to cover the opening, and a terminal plate coupled to the cap plate; and a direction determining member covering the cap plate and coupled to the case to define an extended part.

Abstract: A battery module includes a plurality of battery cell assemblies. Each of battery cell assemblies includes two or more cylindrical battery cells connected to each other in parallel, and the plurality of battery cell assemblies are connected to each other in series. Each battery cell assembly having the parallel connection structure is configured such that negative electrodes of the two or more cylindrical battery cells are electrically connected to each other via a rail type socket. The series connection between the battery cell assemblies includes an electrical connection between the rail type socket and positive electrodes of battery cells of an adjacent battery cell assembly via connection members.

Abstract: A system includes a body, a rod extending beyond a length of the body, a first cap at a first end of the body, and a second cap at a second end of the body. The first cap and the second cap are removably connected to the body. The system also includes a cup including an active material. The cup is located in the second cap. The system further includes a gasket between the cup and the body. The second cap exerting a force on the cup to press the cup against the gasket.

Abstract: Disclosed are a finishing tape which is capable of reducing flow of an electrode assembly in a casing and a secondary battery including the same. As an example, disclosed is a finishing tape comprising: a first layer formed of a resin and forming a substrate; and a second layer formed on at least one side of the first layer and including a microsphere structure.

Abstract: A battery including: an electrode body having a circular-cylindrical shape; and a battery can housing the electrode body. A battery can includes a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuing to the other end of the cylindrical portion. The cylindrical portion has a shape of inner circumference including a corner portion.

Abstract: The present technology relates to an electrochemical device comprising a separation membrane having a dotted line, and a short circuit inducing member, and a method capable of evaluating safety under internal short circuit conditions by using the electrochemical device. When using the electrochemical device of the present invention, it is possible to easily evaluate safety under internal short circuit conditions without physical deformation of an energy storage apparatus.

Abstract: An embodiment of the present invention provides a secondary battery capable of concurrently securing a vibration characteristic and an insulation function of an electrode assembly by using one finishing tape.

Abstract: A rechargeable battery includes: a case receiving an electrode assembly and including an opening; a cap assembly including a cap plate coupled to the case to cover the opening, and a terminal plate thermally fused to the cap plate by a thermal-fusion member, the thermal-fusion member electrically insulating the cap plate and the terminal plate from each other; and a sealing part attached to and located on a side of the thermal-fusion member, a side surface of the terminal plate, and an outer surface of the cap plate.

Abstract: Provided is a secondary battery including an electrode assembly and an electrolyte enclosed in an exterior case. The electrode assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The secondary battery includes a spacer positioned between the electrode assembly and the exterior case. The electrode assembly includes a positive electrode current collecting tab and a negative electrode current collecting tab protruding from the electrode assembly. The spacer includes a first recess for the positive electrode current collecting tab and a second recess for the negative electrode current collecting tab at an outer edge in plain view, and the first recess and the second recess are provided with a separation portion interposed therebetween.

Abstract: The present application relates to a top cover assembly and a secondary battery. The top cover assembly includes: a top cover plate including a lead-out hole and an inside surface forming the lead-out hole; an electrode terminal including a cylindrical portion penetrating the lead-out hole and an annular flange, the annular flange extending beyond the inside surface along the lead-out hole; a sealing ring including a barrel portion and a ring portion, surrounding the cylindrical portion by the barrel portion. The ring portion includes a first ring body and a second ring body distributed in the radial direction; an insulating member including a connecting portion and an extension portion, and the connecting portion seals the second ring body; a portion of the insulating member beyond the second ring body forms the extension portion, and in the radial direction, the extension portion extends beyond the annular flange.

Abstract: A preparation method of zinc-carbon composite electrode material for zinc ion energy storage device, which includes preparing a zinc-carbon composite negative electrode material, preparing an electrode paste, and preparing a battery electrode; the zinc-carbon composite negative electrode material provided in the present invention can enhance a capacity of the zinc ion energy storage device, enhance a cycle stability of the device, has strong expandability, significantly improves the performance of the zinc ion energy storage device, increases the energy density and prolong the service life, and is easy to be popularized on a large scale.

Abstract: A cylindrical battery includes a metal can, an electrode assembly located in the metal can, a cap assembly containing a current interruptive device located on a top of the electrode assembly, an upper insulator located between the cap assembly and the electrode assembly, and at least one spring integrally connected to a lower surface of the current interruptive device.

Abstract: The present invention relates to a secondary battery, wherein the length of a second bending portion of a safety plate covering an extension portion of a cap-up can be adjusted to prevent deformation of the safety plate and improve the sealing force of the secondary battery, even when a crimping part having a flat upper structure in which the sealing force can deteriorate due to the low compression rate of an insulating gasket is used. For example, disclosed is a secondary battery comprising: a cylindrical can; an electrode assembly which, together with an electrolyte, is accommodated in the cylindrical can; a cap assembly coupled to an upper portion of the cylindrical can; and an insulating gasket interposed between the cap assembly and the cylindrical can. The cap assembly comprises: a cap-up; and a safety plate which is installed below the cap-up and has a second bending portion that surrounds an extension portion of an edge of the cap-up and covers a portion of the upper surface of the extension portion.

Abstract: The present application provides a welding assembly and a battery module. The welding assembly includes: a first weldment; and a second weldment, welded and fixed with the first weldment to form a welding seam; where, at least one side of the welding seam is provided with an exhaust channel; and the exhaust channel is located between the first weldment and the second weldment. In the present application, an exhaust gas generated during welding can be discharged from the exhaust channel to prevent it from entering the welding seam to reduce the strength of the welding seam.

Abstract: A secondary battery including an electrode wound body having a structure in which a band-shaped positive electrode and a band-shaped negative electrode are stacked and wound with a separator interposed therebetween, an electrolyte solution, a battery can that accommodates the electrode wound body and the electrolyte solution, a battery lid that closes an open end portion of the battery can, and a safety valve mechanism provided between the battery lid and the electrode wound body, wherein the safety valve mechanism includes at least a safety cover, an outer peripheral portion of the battery lid and an outer peripheral portion of the safety cover are joined, and an area of a region where the outer peripheral portion of the battery lid and the outer peripheral portion of the safety cover are joined is 18.1% or more and 25.0% or less of a sectional area of the battery in a radial direction.

Abstract: A gasket of a cylindrical battery according to an embodiment of the present disclosure comprises a cylindrical part, and a ring part which extends from one end part of the cylindrical part in the axial direction toward an inner side thereof in the radial direction. A surface of the ring part which is opposite the cylindrical part side in the axial direction has, an approximately flat surface, A protrusion is provided on the side of the ring part which is toward the cylindrical part in the axial direction. Said protrusion: is positioned with gaps in the radial direction in relation to both the cylindrical part and an inner end of the ring part in the radial direction; and protrudes in the axial direction.

Abstract: The disclosure relates to a cap assembly and a secondary battery. The cap assembly comprises: a cap plate comprising an electrode lead-out hole; an electrode terminal disposed at a side of the cap plate and covering the electrode lead-out hole; a fixing component, wherein the fixing component and the electrode terminal are disposed at the same side of the cap plate, the electrode terminal is connected to the cap plate through the fixing component, and the fixing component comprises a protrusion extending between the electrode terminal and the cap plate; and a sealing ring, wherein the cap plate is connected to the electrode terminal through the sealing ring, and in an axial direction of the electrode lead-out hole, a projection of the sealing ring at least partially overlaps with a projection of the protrusion.

Abstract: A battery pack including battery cells; a potting resin on the battery cells at positions corresponding to central portions of upper end portions or lower end portions of the battery cells in a height direction of the battery cells; and an adhesive resin on the battery cells at positions corresponding to edge portions surrounding the central portions of the upper end portions or the lower end portions of the battery cells.

Abstract: A cell, a power battery pack, and an electric vehicle are provided. The cell includes a cell body, and the cell body has a length L, a width H and a thickness D. The length L of the cell body is greater than the width H, the width H of the cell body is greater than the thickness D, the length L of the cell body is greater than 600 mm, and the length L and the width H of the cell body satisfy L/H=4-21.

Abstract: A battery is provided comprising an anode cap on a first side, and a cathode can on the opposing second side. The anode cap and cathode can be configured together to provide a cylindrical shaped round shaped battery with a peripheral side wall. The battery is modified to have one or more sharp protrusions extending from the peripheral side wall to increase the width and or height of the battery.

Abstract: According to the present invention, a non-aqueous electrolyte secondary battery includes an accommodation container including a positive electrode can, a gasket, and a negative electrode can, and a power generation element containing an electrolytic solution. The positive electrode can is formed in a bottomed-cylindrical shape having a bottom wall portion and an outer wall portion. The negative electrode can is formed in a topped-cylindrical shape having a top wall portion and an inner wall portion. A portion of the outer wall portion located on a top wall portion side is made as a crimping portion 12b curved with a curvature radius R gradually toward an inner wall portion side as it extends from a bottom wall portion side toward an opening end edge of the outer wall portion. A diameter D of the non-aqueous electrolyte secondary battery is set to 4.6 mm to 5.0 mm. A height H2 of the positive electrode can is set to be in a range of 74% to 79% of a height H1 of the non-aqueous electrolyte secondary battery.

Abstract: A battery system includes: a plurality of battery units, each of the battery units including at least one battery cell, the at least one battery cell including a positive terminal, a negative terminal, and a cell case; and a flexible printed circuit (FPC) including a plurality of integrated circuits (ICs) configured for voltage measurement and temperature measurement. The ICs are interconnected by a wiring structure of the FPC. Each of the ICs is thermally connected to the cell case of the at least one of battery cell of each of the battery units via a contact element in the FPC and is electrically connected via the contact element to the positive terminal of the at least one battery cell of each of the battery units.

Abstract: A battery safety vent assembly for a battery casing with an upper surrounding clamp-like shape is disclosed. The assembly has a positive cap, a safety vent disk extending under a disk element of the positive cap, a gasket insulator snugly fitting into the clamp-like shape of the battery casing and providing support to the positive cap, the safety vent disk and a circuit interrupt device embedded in an underside recess area of the gasket insulator. The circuit interrupt device is coupled to a button downwardly projecting from the safety vent disk. Gas release passages, openings and interfaces between parts of the assembly are arranged so that when gas pressure inside the battery casing exceeds a predetermined threshold limit of pressure, weak lines in the safety vent disk allow gas to safely exit the battery casing.

Abstract: A method for lithiation of an electrode includes providing an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the electrode to be lithiated, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.

Abstract: The present disclosure relates to a cover plate assembly for a lithium ion battery and a lithium ion battery. The cover plate assembly includes a cover plate body, provided at a middle portion thereof with a through hole which extends to form a tube body, and the tube body protrudes from at least one surface of the cover plate body; a pressure relief portion, wherein the pressure relief portion is located in the tube body and is in sealed communication with the tube body, the pressure relief portion is ring-shaped and is configured to crack and split from the cover plate body in response to deformation of the cover plate body; and a central conductor, embraced by the pressure relief portion and runs through the pressure relief portion along the axial direction. The cover plate assembly features excellent safety performance and small space occupation.

Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Abstract: A battery including: a battery can having a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuous with the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; and a sealing body fixed to the open rim so as to seal an opening defined by the open rim. The sealing body includes a sealing plate and a gasket disposed at a peripheral portion of the sealing plate. The gasket has at least one protruding portion configured to restrict insertion of the sealing body into the open rim.

Abstract: An embodiment of the present invention provides a secondary battery capable of concurrently securing a vibration characteristic and an insulation function of an electrode assembly by using one finishing tape.

Abstract: The present invention relates to a cylindrical lithium ion secondary battery which, when an upper end of a cylindrical can is clamped, can prevent deformation of a cap assembly so as to improve safety. For an example, a cylindrical lithium ion secondary battery is disclosed, the battery comprising: a cylindrical can; an electrode assembly received in the cylindrical can; and a cap assembly for sealing the cylindrical can, wherein: the cap assembly comprises a top plate having a notch formed thereon, a support plate disposed in close contact with a lower surface of the top plate and including a first through-hole formed through the center thereof, and a bottom plate electrically connected with the electrode assembly and connected to the lower surface of the top plate through the first through-hole; and the support plate has a strength greater than a strength of the top plate.

Abstract: A method for producing a button cell includes providing a cell cup, a cell top and an electrode-separator assembly winding, the electrode-separator assembly winding having a positive electrode and a negative electrode. An electrically insulating seal is applied at least to an outer portion of the cell top casing. The electrode-separator assembly winding is inserted into the cell top. The cell top is inserted into the cell cup to form a housing. A pressure is applied in a radial direction perpendicular to an axis of the electrode-separator assembly winding so as to seal the housing.

Abstract: A battery pack and a method of assembling a battery pack. The battery pack may include an outer housing; a cell module supportable by the outer housing, the cell module including a module housing, a plurality of battery cells supported by the module housing, the battery cells having an energy of at least about 60. Watt-hours, a controller operable to control an operation of the battery pack, a conductive strap electrically connected to at least one of the battery cells, a weld strap connected between the controller and the conductive strap, and a terminal electrically connected to the battery cells and operable to connect the battery cells to an electrical device for power transfer; and a vapor-deposited, hydrophobic nano coating applied to at least a portion of the cell module.

Abstract: A secondary battery according to the present invention comprises: an electrode assembly in which a first electrode, a separator, and a second electrode are alternately stacked and wound together; a can provided with an accommodation part that accommodates the electrode assembly therein, the can comprising a first can and a second can, which have cylindrical shapes opened in a direction facing each other; and an insulator configured to insulate an overlapping portion between the first can and the second can. The first can forms a first electrode terminal that directly contacts an end of the first electrode, and the second can forms a second electrode terminal that directly contacts an end of the second electrode.

Abstract: A method for manufacturing an energy storage device includes a swaging step in which a swaged portion is formed by swaging a tip portion, penetrating a positive electrode terminal or a positive electrode current collector and projecting in a predetermined direction from the positive electrode terminal or the positive electrode current collector, of a shaft portion. In the swaging step, the tip portion of the shaft portion is swaged by a punch which includes a pressing surface, the pressing surface including a punch-side first concave portion which is concaved in the predetermined direction and a punch-side second concave portion which is concaved in the predetermined direction more than the punch-side first concave portion at an inner peripheral side of the punch-side first concave portion.

Abstract: A method for producing a button cell includes providing a cell cup, a cell top and an electrode-separator assembly winding, the electrode-separator assembly winding having a positive electrode and a negative electrode. An electrically insulating seal is applied at least to an outer portion of the cell top casing. The electrode-separator assembly winding is inserted into the cell top. The cell top is inserted into the cell cup to form a housing. A pressure is applied in a radial direction perpendicular to an axis of the electrode-separator assembly winding so as to seal the housing.

Abstract: A battery module includes a plurality of cylindrical battery cells respectively having electrode terminals formed at an upper portion and a lower portion thereof; a module housing including an accommodation portion having a plurality of hollow structures in which the plurality of cylindrical battery cells are inserted and accommodated; and a module bus bar including a first metal plate having a body portion located at an upper portion or a lower portion of the plurality of cylindrical battery cells to extend in a horizontal direction and a plurality of connection portions configured to extend in a horizontal direction from one side of the body portion to contact the electrode terminals of the plurality of cylindrical battery cells, and a second metal plate bonded to the body portion of the first metal plate and having a metal with a relatively higher electric conductivity than the first metal plate.

Abstract: An end cap assembly includes an end cap configured to close a housing of a battery cell, an adapting member configured to electrically connect an electrode assembly of the battery cell to an electrode terminal of the battery cell, and a supporting member between the adapting member and the end cap. An explosion-proof mechanism provided at the end cap is configured to be actuated to release an internal pressure of the battery cell when thermal runaway occurs in the battery cell. The supporting member is made of a high-temperature-resistant material. An orthographic projection of the adapting member on a first surface of the end cap at least partially overlaps an orthographic projection of the explosion-proof mechanism on the first surface of the end cap and an orthographic projection of the supporting member on the first surface. The first surface is a surface of the end cap facing the housing.

Abstract: A battery module includes cylindrical battery cells, a module housing, and a bus bar. The bus bar includes a main body portion that is positioned at a top or a bottom of the plurality of cylindrical battery cells and has a plate shape having upper and lower surfaces that are broader than a lateral surface of the main body portion in a horizontal direction; and a contact portion that is configured to electrically contact and be connected to an electrode terminal formed in one of the plurality of cylindrical battery cells, extends and protrudes from the main body portion in a horizontal direction, is stepped from the main body portion in a direction toward where the electrode terminal is positioned, and includes a branched structure bifurcated in two directions with respect to a direction in which the contact portion extends and protrudes from the main body portion.

Abstract: To provide an electrode for a non-aqueous electrolyte secondary battery which retains the shape while retaining a discharge capacity at a high rate. An electrode for a non-aqueous electrolyte secondary battery has a current collector and an electrode active material layer arranged on a surface of the current collector, and is used for a non-aqueous electrolyte secondary battery having a liquid volume coefficient of 1.4 to 2.0, in which the electrode active material layer includes an electrode active material and a binder including polyvinylidene fluoride (PVdF), and the polyvinylidene fluoride (PVdF) is in a non-crystallized state and is included in the range of 0.5 to 3.3% by volume with respect to the total volume of the electrode in the electrode active material layer.

Abstract: A prismatic lithium ion battery cell includes a packaging having a cover. The cover includes: a first spiral disk feature disposed below a first terminal pad; a second spiral disk feature disposed below a second terminal pad; a first reversal disk disposed below the first spiral disk feature; and a second reversal disk disposed below the second spiral disk feature. The first and second reversal disks are configured to deflect upwards to displace the first and second spiral disk features to contact the first and second terminal pads, respectively, in response to a pressure within the packaging being greater than a predefined pressure threshold and form an external short-circuit between the first and second terminal pads via the first and second spiral disk features. Subsequently, a portion of the power assembly fails in response to the external short-circuit and interrupts current flow between the first and second terminal pads.

Abstract: A battery is provided. The battery includes an electrode having a flat shape. The electrode is wound and includes a through hole. The through hole is further provided in a wound-back portion of the electrode.

Abstract: A contacting arrangement of solid oxide cells is disclosed, each solid oxide cell having at least two flow field plates to arrange gas flows in the cell, and an active electrode structure, which has an anode side, a cathode side, and an electrolyte element between the anode side and the cathode side. The contacting arrangement includes a gasket structure to perform sealing functions in the solid oxide cell and a contact structure located between the flow field plates and the active electrode structure, the contact structure being at least partly a gas permeable structure configured and adapted according to structures of the flow field plates and according to the active electrode structure.

Abstract: Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).

Abstract: A resin sealing gasket 10 to be incorporated in an alkaline battery 1 housing a power generation element (3 to 5) in a cylindrical battery can 2 closed at a bottom, the sealing gasket configured to insulate a top opening of the battery can and a negative electrode terminal plate 7 from each other. The sealing gasket includes: an outer periphery part 14 standing upward from the rim of a disc-shaped partition part 13; a boss part 11 in a hollow cylindrical shape enabling a rod-shaped negative electrode current collector 6 to stand at the center of the partition part; and a thin-walled portion 15 formed in a groove shape along the outer periphery of the boss part and being thinner than other portions of the partition part.

Abstract: An energy storage device includes a current collector (negative electrode current collector), electrode body that includes a body portion and a tab projecting from the body portion, and a leading plate (negative electrode leading plate) that connects the current collector and the tab. In the leading plate, first and second plates and facing each other are continuously connected at end portions thereof in the first plate, the current collector is fixed to a first principal surface on the opposite side to the second plate. In the second plate, the tab is fixed to a second principal surface on the opposite side to the first plate.

Abstract: A method for producing a button cell includes providing a cell cup, a cell top and an electrode-separator assembly winding, the electrode-separator assembly winding having a positive electrode and a negative electrode. An electrically insulating seal is applied at least to an outer portion of the cell top casing. The electrode-separator assembly winding is inserted into the cell top. The cell top is inserted into the cell cup to form a housing. A pressure is applied in a radial direction perpendicular to an axis of the electrode-separator assembly winding so as to seal the housing.

Abstract: The present invention relates to a secondary battery which is capable of improving safety. As an example, a secondary battery which comprises an electrode assembly; a case which accommodates the electrode assembly; a cap assembly which is coupled to an upper portion of the case, and a gasket which is interposed between the cap assembly and the case, wherein the cap assembly comprises a cap-up, a safety vent which is installed at a lower portion of the cap-up, a cap-down which is installed at a lower portion of the safety vent, an insulator which is interposed between the safety vent and the cap-down, and a sub-plate which is located on a lower surface of the cap-down, and an insulation layer is formed on one surface of the safety vent, is disclosed.

Abstract: A battery (100) and a battery pack having the same, and an electric vehicle are disclosed. The battery (100) includes: a housing; a cover plate (30) located at an end of the housing; a terminal (40) disposed on the cover plate (30); a pole core (10) located inside the housing and having a tab (20), at least one part of the tab (20) being connected to the terminal (40); and an insulating spacer (50) covering one side that is of the at least one part of the tab (20) and that faces away from the terminal (40).