Abstract: A cell top cover and a cell are provided. The cell top cover includes an aluminum sheet, at least one pole post, and at least one upper plastic member. The aluminum sheet defines at least one pole through-hole, each respective pole post penetrates through a respective pole through-hole of the at least one pole through-hole, and the at least one upper plastic member is disposed on a top side of the aluminum sheet, and a respective upper plastic member is sleeved and fixed on the respective pole post. The aluminum sheet is provided with at least one limiting portion on the top side of the aluminum sheet, and a respective limiting portion protrudes from a circumferential side of the respective pole through-hole, and is fitted with the respective upper plastic member to limit rotation of the respective upper plastic member relative to the aluminum sheet.

Abstract: The present application relates to a battery cell, a battery, a power consumption apparatus, and a manufacturing method and device of a battery cell. The battery cell includes: a shell comprising a wall part; an electrode assembly disposed within the shell; and an insulating member disposed between the electrode assembly and the wall part to isolate the wall part from the electrode assembly in an insulating manner. The insulating member is configured to elastically support the electrode assembly to buffer vibration of the electrode assembly within the shell.

Abstract: A secondary battery, a battery pack, and an electric device. The secondary battery includes: a case with an inner cavity in which an electrolyte is included; a cap assembly covering an opening of the case; and an electrode assembly located in the inner cavity, the electrode assembly including an electrode unit and tabs, and along a length direction, the electrode unit including two side portions disposed oppositely, the tabs extending from the side portions; a connecting component configured to connect the tabs and the cap assembly; a flow guiding component located between a corresponding connecting component and a corresponding side portion, being connected to the connecting component and provided with an avoiding portion configured to avoid the tabs, and being in contact with the electrolyte, at least part of the flow guiding component being in contact with the corresponding side portion, and the flow guiding component.

Abstract: A secondary battery herein disclosed includes a power generating element, a battery case, and an electrode terminal. The electrode terminal includes a terminal part, an external connection part, and a molding resin part. The terminal part is connected to the power generating element. The external connection part contacts with the terminal part. The molding resin part covers the periphery of the connection surface between the external connection part and the terminal part in a state where a part of the external connection part is exposed to outside. The external connection part includes a step part between an outer circumferential portion of a connection surface between the external connection part and the terminal part, and an exposed part exposed from the molding resin part to the outside. The molding resin part covers both the outer circumferential portion of the connection surface and the step part.

Abstract: The battery disclosed here comprises one or more wound electrode bodies each composed of a strip-shaped first electrode plate and a strip-shaped second electrode plate superimposed and wound together with a strip-shaped separator between the two, and a battery case containing the wound electrode body or bodies. The first electrode plate has multiple electrode tabs protruding from an edge extending in the longitudinal direction, and the multiple electrode tabs include a first electrode tab having a straight part that is roughly perpendicular to the edge and has a length of at least 2 mm in the direction orthogonal to the edge, and second electrode tabs lacking the straight part.

Abstract: A cell top cover and a cell are provided. The cell top cover includes an aluminum sheet, at least one pole post, and at least one upper plastic member. The aluminum sheet defines at least one pole through-hole, each respective pole post penetrates through a respective pole through-hole of the at least one pole through-hole, and the at least one upper plastic member is disposed on a top side of the aluminum sheet, and a respective upper plastic member is sleeved and fixed on the respective pole post. The aluminum sheet is provided with at least one limiting portion on the top side of the aluminum sheet, and a respective limiting portion protrudes from a circumferential side of the respective pole through-hole, and is fitted with the respective upper plastic member to limit rotation of the respective upper plastic member relative to the aluminum sheet.

Abstract: The purpose of the present disclosure is to provide a secondary battery in which a current interruption function of an electrode tap can be enhanced during an external short circuit, and a temperature rise in the battery can be effectively suppressed. A secondary battery according to one embodiment of the present disclosure is provided with: an electrode assembly having a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; a sealing assembly constituting a positive terminal; a case body constituting a negative terminal; a positive electrode tap connecting the positive electrode and the sealing assembly; and a negative electrode tap connecting the negative electrode and the case body, wherein the positive electrode has a fuse part which has a relatively small cross-sectional area in the positive electrode, and the fuse part of the positive electrode is metallurgically bonded to the sealing assembly.

Abstract: The present disclosure provides an end cover assembly, an energy storage device, and an electric apparatus. The end cover assembly includes: a cover plate having a first through hole; a pole including a pole body, the pole body passing through the first through hole and provided with a first thread at an outer peripheral surface of the pole body; an insulator provided on the cover plate and having a second through hole, the second through hole having a hole wall provided with a second thread, the pole body passing through the second through hole, and the first thread being connected to the second thread; an anti-loosening structure including a first anti-loosening portion and a second anti-loosening portion that are engaged with and connected to each other to prevent the insulator from loosening.

Abstract: The present disclosure enables a decline in a joining force between an internal terminal and an external terminal to be suppressed even when a load is applied to a sealed battery from the outside. In a sealed battery disclosed herein, an external terminal includes a plate portion and a flange portion. The plate portion has a rectangular shape and includes an internal terminal joining portion that is joined to the internal terminal at one end of the plate portion in a lengthwise direction and an external device joining portion that is joined to an external device at another end of the plate portion in the lengthwise direction. The flange portion is arranged in at least one side edge portion of the plate portion in a transverse direction so as to rise approximately perpendicularly with respect to the plate portion.

Abstract: An all-solid-state battery includes: a laminated body having a first lateral face with a positive electrode and negative electrode laminated with a solid electrolyte layer therebetween and wherein a positive electrode current collector layer is exposed and a second lateral face faces the first face and wherein a negative electrode current collector layer is exposed; a positive electrode external terminal on the first face; and a negative electrode external terminal on the second face. At least one difference between a distance Lcn or a distance Lcn+1 from a second face side edge part of a positive electrode of an nth layer or an n+1th layer to the second face and a difference between a distance Lan or a distance Lan+1 from a first lateral face side edge part of a negative electrode of an nth layer or an n+1th layer to the first lateral faces is 10 ?m or more.

Abstract: An all-solid-state battery includes: a laminated body having a first lateral face with a positive electrode and negative electrode laminated with a solid electrolyte layer therebetween and wherein a positive electrode current collector layer is exposed and a second lateral face faces the first face and wherein a negative electrode current collector layer is exposed; a positive electrode external terminal on the first face; and a negative electrode external terminal on the second face. At least one difference between a distance Lcn or a distance Lcn+1 from a second face side edge part of a positive electrode of an nth layer or an n+1th layer to the second face and a difference between a distance Lan or a distance Lan+1 from a first lateral face side edge part of a negative electrode of an nth layer or an n+1th layer to the first lateral faces is 10 ?m or more.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case configured to be connected to the first electrode to accommodate the electrode assembly, and including an opening to receive the electrode assembly; a cap plate configured to be coupled with the case to cover an outer area of the opening, and including a through-hole to expose a central area of the opening; and a terminal plate configured to be connected to the second electrode and to be insulation-bonded to the cap plate, and including a flange portion covering the through-hole, and a protrusion penetrating the through-hole from the flange portion.

Abstract: A solid-state battery including a solid-state battery laminate that includes at least one battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer along a lamination direction, and defining: an overlapping part in which the positive electrode layer and the negative electrode layer overlap each other in the lamination direction, and a non-overlapping part in which the positive electrode layer and the negative electrode layer do not overlap each other in the lamination direction. At least one main surface having a normal in the lamination direction has a recess overlapping the overlapping part and defines a step between the overlapping part and the non-overlapping part or in the non-overlapping part.

Abstract: The disclosed technology relates to electrical feedthroughs for thin battery cells. A battery cell enclosure includes a terraced portion having a reduced thickness relative to another portion of the enclosure. The enclosure includes an opening disposed on a horizontal surface of the terraced portion for receiving the electrical feedthrough. Because the feedthrough is disposed on the horizontal surface of the terraced portion, the feedthrough may be over-sized thereby reducing the resistance and impedance of the feedthrough without increasing the height or thickness of the enclosure.

Abstract: A cover plate assembly, a battery, and a method for assembling a battery are provided. The cover plate assembly includes a cover plate, a pole, and an explosion-proof assembly. The cover plate includes a cover plate body and a carrier portion. The cover plate body is disposed around an external periphery of the carrier portion. The carrier portion is recessed from a first surface of the cover plate body. The carrier portion and the cover plate body cooperatively define a first recess communicating with a first through hole defined by the carrier portion. The pole is disposed in the first recess. The pole abuts against the carrier portion. The explosion-proof assembly includes an explosion-proof valve and a protective sheet. The explosion-proof valve and the protective sheet are disposed in a second through hole defined by the pole. The explosion-proof valve is spaced apart from the protective sheet.

Abstract: Systems, devices, and methods, for harvesting, storing, and using electricity from earth energy devices, particularly involving galvanic cells and antenna received energy. FIGS. 1 through 5 depict numerous technical features and embodiments for combination and utilization in said systems, devices, and methods.

Abstract: A secondary battery includes a battery case, an electrode body, and a collector member connecting the battery case and the electrode body. A positive electrode includes an insulation layer provided so as to be adjacent to a positive electrode active material layer. The collector members include first portions, and second portions continuous to the first portions and bent relative to the first portions. The first portions are fixed to the battery case. The second portions are connected, at ends thereof opposite to the bent portions, to collector regions, respectively. The collector members further include ribs connected, at the bent portions, to the first portions and the second portions, respectively.

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 rechargeable battery jump starting device and a rechargeable battery assembly for use in the portable rechargeable battery jump starting device. The portable rechargeable battery jump starting device maximizes the power conducted from the rechargeable battery assembly to a battery being jump started.

Abstract: A cell of an energy storage device with at least one electrode that is tabless, and methods of forming thereof, are described. The cell includes a first substrate having a first coating disposed thereon, wherein a second portion of the first substrate at a proximal end along the width of the first substrate comprises a conductive material. An inner separator is disposed over the first substrate. A second substrate is disposed over the inner separator. The second substrate has a second coating disposed thereon. The first substrate, the inner separator, and the second substrate in a successive manner, the first substrate, the inner separator, and the second substrate are rolled about a central axis.

Abstract: Provided is a rechargeable battery including an electrode assembly comprising an electrode assembly body and an electrode tab protruding from the electrode assembly body, and a connecting member comprising a guiding plate and a first connecting plate connected to the guiding plate. The guiding plate extends in a width direction and the first connecting plate extends away from a plate surface of the guiding plate along the width direction or extends toward the plate surface of the guiding plate along the width direction. The electrode tab has a stacked multi-layer structure, the electrode tab protrudes from a portion of an end surface of the electrode assembly body in a longitudinal direction at a side of a split of the electrode assembly body perpendicular to the width direction, and the electrode tab is bent with respect to a longitudinal direction and is connected to the first connecting plate.

Abstract: Provided is a rectangular secondary cell enabling seal performance of a gasket to be improved with a simple structure without enlarging a shaft of a terminal. A rectangular secondary cell according to the present invention includes a cell can housing a winding group and having an opening portion, a lid provided with a positive electrode terminal electrically connected to the winding group and closing the opening portion, and a gasket having an interposed portion interposed between the lid and a lower surface of the positive electrode terminal. In the gasket, an external shape of the interposed portion is smaller than an external shape of the lower surface of the positive electrode terminal.

Abstract: According to various embodiments of the present invention, an electronic device may comprise: a housing, which comprises a first plate, a second plate facing the opposite direction to the first plate, and a side surface member surrounding a space between the first plate and the second plate; a display viewed through at least a part of the first plate; a battery, which is disposed in the housing and comprises a battery cell comprising multiple cell parts, at least some of which are arranged to overlap each other when viewed from above one surface of the battery, and multiple conductive members arranged so as to overlap each other at the edges of the multiple cell parts when viewed from above the one surface; a battery protection circuit joined to the multiple conductive members; and a processor operationally connected to the display and the battery. Various other embodiments may also be possible.

Abstract: A lithium ion (Li-ion) battery module includes a module terminal configured to electrically couple the Li-ion battery module to an electrical connector of an external load. The module terminal includes a conductive component and a sealing shim secured to the conductive component, the sealing shim being formed from a polymeric material. The Li-ion battery module includes a housing containing a plurality of Li-ion battery cells and having an opening through which the conductive component of the module terminal at least partially protrudes. The sealing shim of the module terminal is directly secured to the housing and forms a seal isolating an interior of the housing from the external environment.

Abstract: The present disclosure enables a decline in a joining force between an internal terminal and an external terminal to be suppressed even when a load is applied to a sealed battery from the outside. In a sealed battery disclosed herein, an external terminal includes a plate portion and a flange portion. The plate portion has a rectangular shape and includes an internal terminal joining portion that is joined to the internal terminal at one end of the plate portion in a lengthwise direction and an external device joining portion that is joined to an external device at another end of the plate portion in the lengthwise direction. The flange portion is arranged in at least one side edge portion of the plate portion in a transverse direction so as to rise approximately perpendicularly with respect to the plate portion.

Abstract: Provided is a casing for a lithium metal secondary battery including: a battery casing material; at least one releasable capsule attached at least partially or totally to the inner surface of the casing material to cover the inner surface of the casing material; and a release solution supported in the releasable capsule, wherein the releasable capsule includes a capsule coating film and a capsule inner space surrounded with the capsule coating film, the release solution is supported in the capsule inner space, and the release solution includes a release agent and a solvent. A lithium metal secondary battery including the casing and a method for manufacturing the same are also provided. It is possible to increase releasability of the negative electrode in a lithium metal secondary battery and to improve nail safety by using the releasable capsule according to the present disclosure.

Abstract: A technique relating to a battery structure is disclosed. A base substrate and a battery layer having a support substrate are prepared. The battery layer includes a protection layer formed on the support substrate, a film battery element formed on the protection layer and an insulator covering the film battery element. The battery layer is placed onto the base substrate with the bottom of the support substrate facing up. The support substrate is then removed from the battery layer at least in part by etching while protecting the film battery element by the protection layer. A stacked battery structure including the base substrate and the two or more battery layers is also disclosed.

Abstract: A cell of an energy storage device with at least one electrode that is tabless, and methods of forming thereof, are described. The cell includes a first substrate having a first coating disposed thereon, wherein a second portion of the first substrate at a proximal end along the width of the first substrate comprises a conductive material. An inner separator is disposed over the first substrate. A second substrate is disposed over the inner separator. The second substrate has a second coating disposed thereon. The first substrate, the inner separator, and the second substrate in a successive manner, the first substrate, the inner separator, and the second substrate are rolled about a central axis.

Abstract: Provided is a rechargeable battery including an electrode assembly comprising an electrode assembly body and an electrode tab protruding from the electrode assembly body, and a connecting member comprising a guiding plate and a first connecting plate connected to the guiding plate. The guiding plate extends in a width direction and the first connecting plate extends away from a plate surface of the guiding plate along the width direction or extends toward the plate surface of the guiding plate along the width direction. The electrode tab has a stacked multi-layer structure, the electrode tab protrudes from a portion of an end surface of the electrode assembly body in a longitudinal direction at a side of a split of the electrode assembly body perpendicular to the width direction, and the electrode tab is bent with respect to a longitudinal direction and is connected to the first connecting plate.

Abstract: A battery module for a high-voltage battery of a motor vehicle has at least two battery cells, two pressure plates, between which the battery cells are arranged, and at least two tie rods, which are led along opposite side regions of the at least two battery cells and which are connected to the pressure plates, forming a cell module frame surrounding the battery cells and pressing the battery cells against one another. The tie rods are integrally connected to the respective side regions of the battery cells by an adhesive connection.

Abstract: Various embodiments of the present invention relate to a secondary battery. The technical problem to be solved is to provide the secondary battery which can improve the insulation strength of first and second multi-tabs, by forming the first and second multi-tabs of first and second electrode assemblies symmetrically with respect to each other, and also can improve the insulation strength of the first and second multi-tabs by forming an insulating layer on the first and second multi-tabs of the first and second electrode assemblies.

Abstract: A battery unit includes: an electrode assembly, including a main body portion, and a negative tab and a positive tab, which respectively extend out from both ends of the main body portion along the length direction; a negative terminal and a positive terminal, arranged at the top of the electrode assembly; a first current collector for electrically connecting the negative tab with the negative terminal; and a second current collector for electrically connecting the positive tab with the positive terminal. The first current collector includes a first guiding plate. The first guiding plate is of a flat plate structure, and the negative tab is bent to one side of the first guiding plate away from the main body portion and is connected with the first guiding plate.

Abstract: This disclosure presents a terminal (30) for a secondary cell (40). The terminal (30) comprises a terminal plate (20) comprising a through-hole (21) and an inner surface (23) adapted to face the interior of the secondary cell (40). The terminal (30) further comprises a terminal rivet (1) that extends through the through-hole (21) of the terminal plate (20). The terminal rivet (1) comprises a first flange (6) that comprises a protruding portion (7), and the protruding portion (7) extends into the inner surface (23) of the terminal plate (20) in a riveted state (1b). The disclosure also presents a terminal rivet (1).

Abstract: An impact-proofed battery includes a packaging film, an electrode assembly received in the packaging film, tabs extending from an end portion of the electrode assembly, and insulating layers. Each tab includes a connecting region, a packaging region, and an exposed region connected in the order written. The connecting region is electrically connected to the electrode assembly, and the exposed region is exposed from the packaging film. Each insulating layer includes a packaging portion and a protective portion connecting to the packaging portion. The packaging portion covers the packaging region and is between the packaging film and the packaging region. The protective portion is between the connecting region and the packaging film, and an area of the protective portion is greater than an area of the connecting region. The disclosure also provides a device using the battery.

Abstract: A negative electrode terminal includes a flange, and a connection portion disposed on a first surface of the flange. The connection portion is inserted into a terminal attachment hole. The negative electrode terminal includes a first area made of aluminium or an aluminium alloy, and a second area made of copper or a copper alloy. In the flange, the second area is disposed adjacent to the first surface, and the first area is disposed adjacent to the second surface. A boundary between the first area and the second area is disposed between the first surface and the second surface. A thinnest portion of the first area of the flange in the thickness direction of the flange has a thickness of larger than or equal to 0.3 mm. An external electroconductive member made of aluminium or an aluminium alloy is welded to the flange to form a welded portion.

Abstract: The present disclosure relates to a secondary battery, a battery module, and a device using the secondary battery as a power source. The secondary battery includes a casing and a top cover for connecting with the casing. The casing includes an end portion provided with an opening. The top cover is used to cover the opening of the casing. The top cover includes an inserting portion extending into the casing from the opening. A plurality of notches are provided on an inner side of the end portion of the casing or on a side wall of the inserting portion facing the casing. In the secondary battery, the battery module, and the device using the secondary battery as a power source according to the present disclosure, the secondary battery can reduce the possibility of short circuit occurring in the electrode assembly and improve the operational safety of the secondary battery.

Abstract: The disclosed technology relates to electrical feedthroughs for thin battery cells. A battery cell enclosure includes a terraced portion having a reduced thickness relative to another portion of the enclosure. The enclosure includes an opening disposed on a horizontal surface of the terraced portion for receiving the electrical feedthrough. Because the feedthrough is disposed on the horizontal surface of the terraced portion, the feedthrough may be over-sized thereby reducing the resistance and impedance of the feedthrough without increasing the height or thickness of the enclosure.

Abstract: Electric vehicle battery packs with external side enclosures for containing electrical connectors and other components therein. Each enclosure is sized to support various connectors or other components as desired, and may have a number of openings formed to provide interfaces for connecting various electric vehicle systems to the battery pack. The enclosures may be placed at various locations along one or more sides of the battery pack, and connectors may be routed over an upper surface of a battery pack frame or through a gap formed between the pack frame and cover. Enclosures may be made of any material, including plastic for lower weight applications and metal for improved electromagnetic interference shielding.

Abstract: Disclosed herein is A battery pack comprising: a pack housing; a base plate; at least two battery modules arranged such that the battery modules are located in a space defined between the pack housing and the base plate, each battery module including a plurality of battery cells or unit modules which can be charged and discharged; a first wall located at a first side of the base plate; a second wall located at a second side of the base plate; an external input terminal and an external output terminal are located at both of the first wall and the second wall, the battery modules being connected to the external input and output terminals in a state in which the battery modules are electrically connected in series or in parallel to each other; and a capacitor is present at the first or second wall adjacent to a corresponding one of the external input and output terminals, the capacitor being electrically connected to said corresponding one of the external input and output terminals.

Abstract: The present disclosure relates to a rechargeable battery including: an electrode assembly including a first electrode, a second electrode, and a separation layer interposed between the first electrode and the second electrode, a first electrode tab electrically connected to the first electrode, a second electrode tab electrically connected to the second electrode, and a first exterior member and a second exterior member receiving the electrode assembly and disposed to face each other, wherein at least one of the first exterior member and the second exterior member includes at least one of a first draw-out unit drawing out the first electrode tab and a second draw-out unit drawing out the second electrode tab, and a display device including the same.

Abstract: A rechargeable battery and a battery module are provided. According to embodiments, a rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator; a case accommodating the electrode assembly therein and including an open side; a cap plate coupled to the open side of the case; and a terminal portion arranged on the cap plate to be electrically connected to the electrode assembly, and the terminal portion is slidable in a direction on the cap plate.

Abstract: A battery module according to an embodiment of the present invention includes: a plurality of unit cells, each including a case and an electrode terminal protruding from the case; and a bus bar which electrically connects any pair of unit cells among the plurality of unit cells, and the bus bar includes: a terminal coupler which is inserted between respective electrode terminals of the pair of unit cells; and a case coupler which is inserted between respective cases of the pair of unit cells.

Abstract: Battery systems containing recyclable battery portions. The present disclosure includes disclosure of a battery system, comprising a housing configured to retain two or more battery portions; two or more battery portions configured to fit within the housing; wherein the housing is configured to fit within a battery compartment of a cart; wherein the two or more battery portions, when effectively connected together using a central connector of the battery system, collectively produce sufficient power to power electronic equipment of the cart; and wherein each of the two or more battery portions weigh at or below a desired threshold weight.

Abstract: A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals.

Abstract: The invention relates to a battery cell (2), in particular a prismatic lithium ion cell, the battery cell (2) comprising an electrode assembly (4), a battery case (6) for housing the electrode assembly (4) and a cap assembly (S) for closing the battery case (6), the cap assembly (S) comprising a set of terminals (10) arranged thereon, wherein the electrode assembly (4) comprises first electrode plates (14), separator plates and second electrode plates (16) stacked on one another, wherein electrode tabs (12) are provided to electrically connect the electrode assembly (4) with the terminals (10). The electrode tabs (12) are bent at least once in a direction normal to the first and second electrode plates (14, 6). Furthermore, the invention relates to a method of manufacturing a battery cell (2).

Abstract: A secondary battery, a battery pack and a device using the battery are provided, wherein the end cover assembly includes: an end cover with a through hole for injection of electrolyte and an accommodating part, the accommodating part is arranged on a side far away from a shell of the end cover and is arranged along a circumferential direction of the through hole; a sealing element; and a cover body for covering at least part of the sealing element, the cover body is rotatable and includes a limiting part; when the cover body rotates to a first position, the limiting part is located inside the accommodating part to limit separation of the cover body from the end cover; when the cover body rotates to a second position, the limiting part and the accommodating part are misplaced to realize separation of the cover body from the end cover.

Abstract: The present disclosure relates to a secondary battery and a manufacturing method of the secondary battery, and the secondary battery includes a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and provided with a through hole; and a current collecting member, including an extending portion and a connecting portion connected to the extending portion, wherein the connecting portion is located on an inner side of the cap plate and is directly connected to the tab, and the extending portion is adapted to extend toward the electrode terminal and protrude into the through hole, and is connected to the electrode terminal. The configuration of the secondary battery of the present disclosure is conducive to improving an energy density.

Abstract: A battery according to an embodiment may comprise an electrode assembly, said electrode assembly comprising an electrode substrate comprising a first area and a second area; an active material deposited on the first area of the electrode substrate; and an electrode tab attached to the second area of the electrode substrate, wherein the electrode tab comprises a bonding surface having at least one protrusion making contacting with a bonding location of the second area of the electrode substrate, wherein a surface opposite to the bonding surface and a surface opposite the bonding location are substantially flat.

Abstract: A feedthrough that forms a terminal for a metal-ion electrochemical accumulator, provided through an aperture opening out on either side of a wall including two opposite faces. The includes feedthrough an electrically conductive male part, and a female part made of an aluminum-based alloy. A portion of the male part is tight-fitted into a blind hole of the female part.

Abstract: In this non-aqueous electrolyte secondary battery, a positive terminal and a negative terminal extend in a first direction, protrude from a laminated cell stack, and are provided so that a center line is interposed therebetween, the center line passing through a midpoint of both ends of the laminated cell stack in a second direction orthogonal to the first direction and extending in the first direction when the laminated cell stack is seen in plan view, and a first terminal with higher heat dissipation efficiency among the positive terminal and the negative terminal is provided in a location closer to the center line than a location of a second terminal with lower heat dissipation efficiency among the positive terminal and the negative terminal.