Abstract: An electric power storage cell including several electrochemical elements connected in series and/or in parallel, arranged inside a sealed casing. The casing electrically connects the electrochemical elements to a power connecting device outside the casing. The electrical connection is configured so that the casing can be traversed without affecting adversely the tightness thereof and without transmitting stresses to the casing. The storage cell has applications in the field of lithium polymer technologies with high power storage assemblies.

Abstract: A pouch type secondary battery, in which a bent state of a cathode tap and an anode tap is maintained by eliminating a restoration phenomenon caused by an elastic force of the insulating tape when the cathode tap and the anode tap are bent by forming bending grooves on cathode and anode insulating tapes, includes: an electrode assembly which includes a cathode electrode plate where a cathode tap is connected, a anode electrode plate where an anode tap is connected, and a separator interposed between the cathode electrode plate and the anode electrode plate; a pouch containing the electrode assembly therein such that the cathode tap and the anode tap are exposed to the outside; a cathode insulation tape forming a first bending groove on at least one side portion and wrapped around the cathode tap so as to insulate a region where the cathode tap is in contact with the pouch; and an anode insulation tape forming a second bending groove on at least one side portion and wrapped around the anode tap so as to insula

Abstract: A pouch type secondary battery having enhanced reliability by protecting the battery from external impacts is described. A reinforcement structure may be installed on a pouch casing and an electrode assembly housed in the pouch casing. Short-circuits inside the pouch casing may be minimized. The pouch type secondary battery has an electrode assembly with positive and negative electrode plates with a separator interposed therebetween, and positive and negative terminal portions extending from the positive and negative electrode plates. A first reinforcement member is closely adhered to one or more planes of the electrode assembly. A second reinforcement member may be adhered to the pouch casing and used with or without the first reinforcement member.

Abstract: Disclosed herein is a battery management system for controlling the operation of a middle- or large-sized battery pack, the battery management system comprising: a battery management system printed circuit board (BMS PCB) comprising a circuit and elements for controlling the operation of the battery pack; a connector attached to one side of the BMS PCB; a housing including a housing body for receiving the BMS PCB while partially exposing the connector and a cover for covering the housing body, the cover is coupled to the housing body while the cover is disposed on the housing body; and a waterproofing member interposed between the housing body and the cover, constituting the housing, such that the waterproofing member is in tight contact with the interface between the housing body and the cover, the waterproofing member being constructed in a structure to be coupled at coupling regions of the housing body and the cover.

Abstract: A negative electrode for a hybrid energy storage device includes a current collector; a corrosion-resistant conductive coating secured to at least one face of the current collector; a sheet comprising activated carbon adhered to the corrosion-resistant conductive coating; a tab portion extending from a side of the negative electrode; and a lug comprising a lead or lead alloy that encapsulates at least part of the tab portion.

Abstract: A sealed battery includes electrode group 4 formed by winding or stacking a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed between the positive electrode plate 1 and the negative electrode plate 2, the electrode group being housed in a battery case 5, and an opening of the battery case 5 being sealed with a sealing plate 10, wherein a lead 11 extending from one of the electrode plates in the electrode group 4 is laser welded to the sealing plate 10, and a welding portion 14 between the lead 11 and the sealing plate 10 has a linear shape straddling at least an end portion of the lead 11.

Abstract: A cap assembly for a secondary battery in which an insulating member is disposed in a partial or entire terminal plate, resulting in improved stability. The cap assembly includes a terminal plate and an insulating member. The insulating member is disposed in a partial or entire region of the terminal plate other than a region to which a negative electrode tab is welded.

Abstract: A secondary battery including a case; an electrode assembly and electrolyte accommodated in the case; an electrode terminal electrically connected to the electrode assembly, the electrode terminal including a terminal body; a cap plate sealing the case, the terminal body penetrating through the cap plate; and a seal gasket surrounding a lower portion of the terminal body, wherein the electrode terminal includes a laterally protruding part on a portion of the terminal body protruding outside the case, and the seal gasket is in close contact with a lower end of the protruding part.

Abstract: A battery is provided with a base portion provided on the base end side of a columnar rivet portion. A terminal rivet is formed, on that surface of the base portion on which the rivet portion is located, with a sloped seat surface having a height which increases as one moves closer to the rivet section and provided at the entire circumference around the rivet section. The battery is also provided with an annular elastic member and a hard member having higher hardness than the elastic member and provided with a first hole having a diameter greater than the outer diameter of the elastic member and smaller than the outer diameter of the sloped seat surface. The terminal rivet is mounted such that the base portion and a current collecting part are located inside a battery case and such that the rivet portion penetrates through a hole in the battery case to project outward.

Abstract: A battery (3) includes a battery case (10) having an opening sealed with a sealing plate (13). The sealing plate (13) has a protrusion (13a) extending in a direction toward the outside of the battery case (10), and a ring-shaped insulator (32) is provided on an outer circumferential surface of the protrusion (13a). An inner circumferential portion (32e) of the insulator (32) is in contact with the outer circumferential surface (13b) of the protrusion (13a), and an outer circumferential portion (32d) of the insulator (32) is extended to be positioned on an opening end (10a) of the battery case (10).

Abstract: In the production of a secondary electrochemical generator comprising a container with a casing (3) and a cover (4), the stage of electric coupling of a connection to a current output is designed so that the length of the connection does not allow it to come into contact with the current output when the cover is not in its closed position. This stage comprises the following steps: a first end (22) of the connection is electrically connected to an electrode (2), the cover is placed on the casing in order to close the container so that the second end (23) of the connection is in physical contact with the current output which is electrically insulated from the casing, and an electric current is applied between the casing and the current output so as to weld the second end of the connection to the current output.

Abstract: A lead sealant film and a non-aqueous electrolyte battery are provided. The lead sealant film includes a laminated structure composed of an inner layer, an intermediate layer, and an outer layer. The intermediate layer includes a first acid-modified polypropylene having a high melting-point, and each of the inner layer and the outer layer includes a second acid-modified polypropylene having a low melting-point. A difference between the melting point of the first acid-modified polypropylene and the melting point of the second acid-modified polypropylene is from 20° C. to 25° C.

Abstract: Provided is a secondary battery comprising a core (7), tabs (4) protruding from an end of the core (7), a tab lead-out device placed at the end of the core (7), and a cover plate (1). The tab lead-out device includes an insulating layer (6) adjacent to the end of the core (7) and a conductive layer (5) distant from the end of the core (7). The tabs (4) are electrically connected to the conductive layer (5). The conductive layer (5) is electrically connected to the cover plate (1). The secondary battery further comprises a connector and a pad (3) stacked between the conductive layer (5) of the tab lead-out device and the cover plate (1). The tabs (4) are compacted between the pad (3) and the conductive layer (5) of the tab lead-out device by the connector.

Abstract: A high energy density battery is provided that improves energy density through efficient placement of the inter-plate connections within the battery enclosure. The placement of the current carrying leads in the high energy density battery allows for a greater volume of active material to be placed within the battery enclosure. This placement design can also be used to reduce the size of existing power sources. Methods for constructing high energy density batteries and methods for increasing the volumetric energy density of an implantable battery are also provided. The resulting high energy density battery can be used to power electronics associated with a variety of devices such as medical devices.

Abstract: A lithium rechargeable battery includes an electrode assembly, a can containing the electrode assembly, a cap plate coupled to the top opening of the can and provided with a terminal through-hole, and an electrode pin inserted into the terminal through-hole. The electrode pin has a head shaped like a flat plate, a post extending from the lower surface of the head, and a protrusion formed along the edge of the upper surface of the head.

Abstract: A secondary battery including: an electrode assembly including a plurality of first and second electrode plates, and a plurality of separators between the first and second electrode plates; a first electrode tab on the first electrode plate, and a second electrode tab on the second electrode plate; a case housing the electrode assembly, and the first and second electrode tabs; and first and second external lead terminals at an outer side of the case and electrically coupled to the first and second electrode tabs, respectively.

Abstract: A rechargeable battery includes an electrode assembly including a positive electrode including a positive current collector, a positive active material on the positive current collector in a positive coating region, and a positive uncoated region in which the positive active material is not on the positive current collector at a first side of the electrode assembly; a negative electrode including a negative current collector, a negative active material on the negative current collector in a negative coating region, a first negative uncoated region in which the negative active material is not on the negative current collector at the first side of the electrode assembly, and a second negative uncoated region in which the negative active material is not on the negative current collector at a second side of the electrode assembly opposite the first side; and a separator between the positive electrode and the negative electrode.

Abstract: A secondary battery includes an electrode assembly and an electrolyte solution in a case, a current collection unit in the case and electrically connected to the electrode assembly, a cap plate coupled to an open side of the case for sealing the case, an electrode terminal penetrating the cap plate through a terminal hole to be exposed to an exterior of the case, the electrode terminal being electrically connected to the current collection unit, and an insulation unit separating the cap plate from the electrode terminal and the current collection unit, the insulation unit being configured to block penetration of the electrolyte solution therethrough toward the cap plate.

Abstract: A rechargeable battery including an electrode assembly containing a positive electrode, a negative electrode and a separator interposed therebetween, a case having a space for housing the electrode assembly therein, lead elements connected to the electrode assembly and disposed at a sealing region of the case, and a sealant arranged between and adjacent to the case and the lead element the sealant including an area having relatively less resistance to fracture.

Abstract: A headspace insulator for a battery cell operatively coupled to circuitry within an implantable medical device in including one or more of the following: (a) a body of electrically and thermally insulating material disposed between a battery electrode assembly and a battery cover, (b) a receiving area within the body that receives and isolates a battery feedthrough pin, (c) an indentation within the receiving area retaining the feedthrough pin within the receiving area, (d) a raised portion coupled to a battery cover providing an air gap between the cover and the headspace insulator near case-to-cover weld areas, (e) a feedthrough aperture adapted to receive a feedthrough assembly, (f) a pin aperture that receives the feedthrough pin, (g) a fillport aperture for electrolyte fluid flow through the headspace insulator, and (h) a slot that locates a battery weld bracket and isolates it from the feedthrough pin.

Abstract: A secondary battery includes a can having an interior space, an electrode assembly provided in the interior space of the can, and a cap assembly seated on an opening formed in the can to seal the can and electrically connected to the electrode assembly. The cap assembly includes a cap plate connected to the opening to seal the can; a tab plate mounted to one side of the cap plate and connected to the electrode assembly; an insulating plate interposed between the cap plate and the tab plate; an electrode pin passing through the cap plate, the tab plate, and the insulating plate to interconnect these elements; and an insulating gasket interposed between the cap plate and the electrode pin. Also, the electrode pin includes a head portion mounted to one side of the cap plate and formed in multiple stages in an area contacting the insulating gasket; and a column extending from the head portion and passing through the insulating gasket, the cap plate, the insulating plate, and the cap plate.

Abstract: A battery cover member (10) of the present invention includes a metallic electrode terminal (40), a metallic cover member (30) having through holes (32), and an insulating resin member (50), in which the electrode terminals inserted into the through hole and the cover member are integrally bonded together by the insulating member, wherein at least a sealing area (70) of the electrode terminal that adheres to the insulating member is formed as a columnar shape or an elliptically columnar shape.

Abstract: By combining crimping fixing and laser welding, a collector attached to a substrate of an electrode assembly is fixed to a terminal. A negative electrode terminal 19A has a terminal portion formed on one side of a flange portion, and a cylindrical crimping member 19b on the other side. The cylindrical crimping member 19b is inserted through openings formed in a first insulating member, a sealing plate, a second insulating member, and a negative electrode collector 18a. The cylindrical crimping member 19b is crimped in a diameter-increasing direction, and is mechanically fixed in a countersunk hole 18c of the negative electrode collector 18a. A peripheral portion of a thin-walled portion 19d having a thickness smaller than those of other portions formed at the tip end portion of the cylindrical crimping member 19b is thoroughly adhered and welded by a high energy beam to the edge of the countersunk hole 18c.

Abstract: To provide a high capacity thin-type secondary battery suitably formed into a module and having no thickness fluctuation, excellent quality stability, and excellent heat radiation properties, by using a sheet-like separator having expansion anisotropy due to penetration of an electrolytic solution.

Abstract: A method and apparatus for cold forming a battery terminal having a battery coupling portion and an electrical coupling portion are provided. The battery coupling portion defines a first longitudinal axis and the electrical coupling portion defines a second longitudinal axis, the first axis being spaced from a distance from the second axis. The battery coupling portion and the electrical coupling portion may include one or more extensions. The electrical coupling portion may further include an insert.

Abstract: One embodiment of the present subject matter includes a battery having a stack of substantially planar battery electrodes, the stack including a first electrode including a first tab, and a second electrode including a second tab, with the first tab electrically connected to the second tab. The embodiment includes a first separator layer and a second separator layer sandwiching the first electrode, with the edges of the first separator layer and the second separator connected with a weld, the first separator layer and the second separator layer defining an interior space in which the first electrode is disposed, with the first tab extending outside the interior space. The embodiment includes an battery housing having electrolyte disposed therein, the housing including at least a first aperture and a feedthrough aperture; a lid conformed and sealed to the first aperture; and a feedthrough conformed and sealed to the feedthrough aperture.

Abstract: There is provided a storage battery, including: a container having at least one cell chamber; a lid body (2) made of synthetic resin for covering a top opening of the container, the lid body having on a top surface a recessed portion that is recessed downward, the lid body having positive and negative electrode terminals disposed close to one side of the lid body and respectively at both end portions of said one side in a longitudinal direction, wherein the positive and negative electrode terminals (4) respectively have lower portions embedded in the lid body and upper portions projecting from the lid body; and an auxiliary lid (9) for closing the recessed portion.

Abstract: A battery (100) provided by the present invention includes an electrode body (80) having a positive electrode and a negative electrode (84), a bottomed battery case (10) for holding the electrode body (80), and a current collecting plate (20) that connects the battery case (10) with either the positive electrode or the negative electrode of the electrode body. A part of the current collecting plate (20) and a bottom part (16) of the battery case (10) are fixed to each other by welding, and a sealed structure (40) that surrounds a weld (30) composed of a portion that has been welded is formed at the periphery of the weld (30).

Abstract: A rechargeable battery includes a housing having a housing wall, at least one cell in the housing, and a contact element electrically connected to the at least one cell. The rechargeable battery also includes a plastic sealing element extrusion-coated on the contact element. The sealing element includes a supporting surface which lies flat against the housing wall at an interface. The supporting surface is transmission laser-welded to the housing wall at the interface. One of the supporting surface and the housing wall is at least partially transparent for the laser beam and the other of the supporting surface and the housing wall is absorbent for the laser beam.

Abstract: A polymer battery pack includes a polymer battery, an outer case having a first outer panel and a second outer panel, the outer case enclosing the polymer battery, an electrode tap in electrical communication with the polymer battery and positioned outside the outer case, and a protecting circuit board in electrical communication with the electrode tap and positioned outside the outer case, for enhanced operation and durability.

Abstract: A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 ?m, and a second peak having a mode diameter of 0.003 to 0.02 ?m. A volume of pores having a diameter of 0.01 to 0.2 ?m as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 ?m as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.

Abstract: A secondary battery includes a can having an interior space, an electrode assembly provided in the interior space of the can, and a cap assembly seated on an opening formed in the can to seal the can and electrically connected to the electrode assembly. The cap assembly includes a cap plate connected to the opening to seal the can; a tab plate mounted to one side of the cap plate and connected to the electrode assembly; an insulating plate interposed between the cap plate and the tab plate; an electrode pin passing through the cap plate, the tab plate, and the insulating plate to interconnect these elements; and an insulating gasket interposed between the cap plate and the electrode pin. Also, the electrode pin includes a head portion mounted to one side of the cap plate and formed in multiple stages in an area contacting the insulating gasket; and a column extending from the head portion and passing through the insulating gasket, the cap plate, the insulating plate, and the cap plate.

Abstract: A rechargeable battery includes a case having an opening; an electrode assembly accommodated into the case and having first and second electrode taps protruding upwardly; a cap assembly including a cap plate covering the opening of the case and a electrode terminal insulated from the cap plate; first and second electrode leads connected to the electrode terminal and the cap plate, respectively; a circuit board connected to the cap assembly by the first and second electrode leads; a resin portion filling a space between the cap assembly and the circuit board; and an insulation reinforcing portion insulating the cap assembly from the first electrode lead and the cap plate. With the insulation reinforcing portion, it is possible to prevent the cap assembly from separating from the resin portion under external pressure.

Abstract: A lithium secondary battery having an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate. A case receives the electrode assembly and a cap assembly is coupled to the case to seal the case. The cap assembly includes a cap plate adapted to permit the insertion of electrolyte into the case, the cap plate including at least one recess. An insulation case located between the electrode assembly and the cap assembly is formed with at least one protrusion on an exterior-facing surface. The protrusion is adapted to be coupled to the recess to integrate the insulation case and the cap plate.

Abstract: A rechargeable battery includes an electrode group with a separator, a positive electrode, and a negative electrode in a case, a cap plate for sealing the case and including a terminal hole, an electrode terminal extending through the terminal hole, and a lead tab connecting the electrode terminal to the electrode group. The lead tab includes a horizontal part connected to the electrode terminal, a first vertical part and a second vertical part spaced apart from each other and extending from the horizontal part in a vertical direction along the electrode group, and a connection part connecting the first vertical part and the second vertical part, the connection part being spaced apart from the horizontal part to define a gas outlet that overlaps an end part of the electrode group.

Abstract: A secondary battery has a protrusion formed on a first electrode tab welded to a terminal plate of a cap assembly to increase the contact resistance between the first electrode tab and the terminal plate for easy welding.

Abstract: A secondary battery for electronic appliance to be installed in an electronic appliance, thereby feeding an electric power to the electronic appliance, is disclosed, which includes: a battery cell in which a positive electrode, a negative electrode and an electrolyte are accommodated in a pack, and a positive electrode terminal and a negative electrode terminal from the positive electrode and the negative electrode, respectively are lead out from the same side face of the pack; a metallic battery can in which one opening from which the battery cell is inserted is formed and which accommodates the battery cell therein such that the side face from which the positive electrode terminal and the negative electrode terminal are lead out is faced towards the opening side; and a lid made of a synthetic resin in which a positive electrode terminal part and a negative electrode terminal part to be connected to the electrodes of the electronic appliance upon being connected to the positive electrode terminal and the neg

Abstract: The present invention describes a monoblock for a plurality of lithium ion cells. The monoblock includes a case having a base and a cover dimensioned and configured to the base. The case includes a chamber that includes cell compartments for lithium cells. Each lithium cell is disposed in a leaf spring that applies compression pressure on the cell. The structural integrity of the battery and cells is maintained using internal and external anti-swelling features including a waffle pattern, backing plates, etc. A liquid and gas pressure management system is also incorporated with the case and realized by a vent plenum, check valves, bladders, bags, etc.

Abstract: The prismatic cell of the present invention includes a rectangular outer can having a mouth portion at the top, a sealing plate that seals the mouth portion, and a positive terminal and a negative terminal that protrude from the sealing plate in a state of insulation from the sealing plate, the side faces and bottom faces of the rectangular outer can being covered by a bottomed rectangular tubular holder made of rubber. Thereby, it is possible to provide with ease a packed battery in which short-circuiting between the interconnected prismatic cells can be more reliably prevented, and to provide a prismatic cell which is optimal for use in the battery of an electric vehicle (EV), a hybrid electric vehicle (HEV), or the like.

Abstract: The present invention relates to lithium ion secondary batteries that have an enclosure with an electrode core compartment for holding the electrode core and a separate protection circuit compartment for holding the protection circuits, and terminal leads connecting the electrodes in the electrode core with the circuits in the protection circuit. The enclosure is made of non-conducting material such as plastic. The lithium batteries of this invention are light, not only because of the weight of the material of their enclosure, but also because its non-conducting character eliminates the necessity of additional protective features that are commonly necessary for enclosures with metal components.

Abstract: A electrical connector for connection to an electrochemical cell is described. The connector comprises a conductive lid; a ferrule disposed within an opening through the conductive lid; a conductive center pin disposed within the ferrule; and a hermetic seal formed between the pin and an interior surface of the ferrule. A mating terminal connector adapted to be connected to the ferrule and the conductive center pin is further provided. The terminal connector is a device for easily and quickly connecting the cell to a circuit board of the kind found in an implantable medical device, such as a cardiac pacemaker, defibrillator, neuro-stimulator, drug pump, and the like.

Abstract: The rechargeable battery comprises an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between those two electrodes. The battery further comprises a container that receives the electrode assembly inside it and a cap assembly that is coupled with the container to seal it. The cap assembly includes a cap plate that is coupled with the container, an external terminal that is disposed in the cap plate to be coupled with to the electrode assembly, and a tubular body that surrounds the external terminal to fix the external terminal to the cap plate.

Abstract: A seal design provides positive compression to produce a hermetic seal around a feedthrough pin in a hermetically sealed device, including an implantable medical device. One embodiment of the seal design uses a plurality of “micro-flanges” placed along the length of a feedthrough pin, which micro-flanges grabs and compresses the insulator material to form a hermetic seal. Because the seal design produces positive compression of the insulator, the seal is relatively insensitive to changes in temperature and to differences in thermal expansion coefficients (“TCEs”) between the metal feedthrough and the insulator. It is therefore possible to use a wider variety of materials for the insulator and the feedthrough with the described sealing design, while achieving a superior hermetic seal.

Abstract: A gasket that provides sealing between an assembled sealing member and the opening of a battery case includes a high-strength layer inside thereof. The high-strength layer is formed by using a material having a higher strength than that of a gasket body. Examples of such a material include high-strength resins such as polyamide, polyimide and polyphenylene sulfide, and a ceramic. On the other hand, the gasket body is made of a material having a high level of sealing properties. With this configuration, even when extraneous metallic matter or the like is present in a sealed portion, it is possible to prevent both insulating properties and sealing properties of the sealed portion from being impaired.

Abstract: A secondary battery includes an electrode assembly and a can having an opening at one end of the can. The electrode assembly is housed in the can. A cap plate seals the opening. The cap plate includes an electrolyte injection hole. An electrode terminal is coupled to the cap plate electrical connecting the electrode terminal and the electrode assembly. A gasket is located between the electrode terminal and the cap plate to insulate the electrode terminal from the cap plate. A plug seals the electrolyte injection hole, the plug being coated with an elastic film.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a case formed of a film and including a heat sealed section formed on at least one edge portion of the case. The negative electrode contains a negative electrode active material having a lithium ion insertion potential not lower than 0.4V (vs. Li/Li+). The nonaqueous electrolyte battery also includes positive and negative electrode terminals. A first alumina layer having projections and recesses is formed on at least one part of a seal portion of the positive electrode terminal. A second alumina layer having projections and recesses is formed on at least one part of a seal portion of the negative electrode terminal. Further, the positive and negative electrode terminals have a cross sectional area S (mm2) which satisfies 0.6Q?S?2Q.

Abstract: The sealed battery includes a sealing plate 13 sealing a mouth of an outer can, an external terminal 16 attached to the sealing plate 13 and having a connecting terminal 23, and a current interruption mechanism 18 interrupting current in response to pressure increase in the outer can that is installed in a conductive pathway electrically connecting the connecting terminal 23 and an electrode assembly. In the connecting terminal 23, a through-hole 23b continuing to the space on the current interruption mechanism 18 at the side corresponding to the outside of the battery is formed. The through-hole 23b is sealed with a terminal stopper 30 made of an elastic member so as to form a closed space between the terminal stopper 30 and current interruption mechanism 18. An electrolyte or washing solution hardly enters the current interruption mechanism during the manufacture can be provided.

Abstract: An improved battery design which is particularly suitable for use in an implantable medical device is disclosed. The design utilizes a two-part case for the battery contents which allows freedom with respect to feedthrough locations and battery shape.

Abstract: A rechargeable battery and rechargeable battery module, the rechargeable battery including a case housing an electrode assembly, a cap plate sealing the case, at least one first insulator disposed on an outer surface of the cap plate, a pair of electrode terminals penetrating the cap plate and the first insulator, and a bus bar coupled to one of the electrode terminals, wherein the cap plate and first insulator include a first joining unit coupling the first insulator and the cap plate and the first insulator and bus bar include a second joining unit selectively coupling the first insulator and the bus bar.

Abstract: A sealed battery includes a metal case which functions as a connection terminal of one polarity and an electrode post which is mounted to the case in an insulated manner and functions as a connection terminal of the other polarity. A sealing section with electrical insulation properties is disposed between the electrode post formed from a hollow cylinder with one closed end and an electrode post through-hole provided in the case. A compression deformation section is produced by deforming the closed end of the electrode post radially outward, for compressing and sealing the sealing section, and for securing the electrode post to the case.