71results about "Hybrid capacitor terminals" patented technology

A power storage device 10 comprises a case 20, a power storage element 30, a belt-like lead 41, and an opening-sealing member 50. The opening-sealing member 50 is provided with: an insulating gasket 51 having a base part 53; and an electroconductive opening-sealing plate 56. The opening-sealing plate 56 has a displacement part 57. The displacement part 57 of the opening-sealing plate 56 and the lead 41 are electrically connected to each other. By displacement of the displacement part 57 in a direction separating away from the lead 41 in response to a rise in internal pressure inside the case 20, the displacement part 57 and the lead 41 are electrically disconnected from each other. The storage device 10 further comprises a displacement suppression means 43 that is disposed in the case 20 and that suppresses displacement of the lead 47 when the displacement part 57 is displaced in the direction separating away from the lead 41. Accordingly, the operation reliability in an electric current cutoff mechanism is enhanced.

To provide a highly reliable method for manufacturing energy storage devices. [Solution] A method for manufacturing an energy storage device comprises an electrode body including a first electrode and a second electrode, the electrode body having a group of first electrode tabs arranged in a plurality of stacks of first electrode tabs connected to the first electrode, and further comprising a first conductive member connected to the group of first electrode tabs, comprising the steps of: manufacturing an electrode body having a group of first electrode tabs; forming a first joint where the first electrode tabs in the group of first electrode tabs are joined together; and forming a second joint where the first joint in the group of first electrode tabs and the first conductive member are joined together, wherein the step of forming the second joint includes wobbling an energy ray.

A system for incorporating one or more individual energy cells is provided. The individual energy cells include a top surface having a central terminal and an outer terminal. The top surface may include a pressure dissipation element configured to dissipate pressure in a direction opposite the bottom surface. The first terminal and the second terminal may be substantially planar electrical contacts.

Provided is a secondary battery which achieves both high safety and reduction in charging / discharging time. A secondary battery according to the present invention is of a winding type. In the secondary battery, a positive electrode current collector of a positive electrode has a first tab and a second tab, and a negative electrode current collector of a negative electrode has a third tab and a fourth tab. The first tab is located at a portion closer to the center of the winding as compared with the second tab, and the third tab is located at a portion closer to the center of the winding as compared with the fourth tab. The first tab and the second tab are joined at a first joining part, and the third tab and the fourth tab are joined at a second joining part. A positive electrode active material has a first region, and a second region located on the surface side of the positive electrode active material. The first region contains lithium, cobalt, and oxygen. The second region contains lithium, cobalt, magnesium, and oxygen.

To provide a highly reliable bus bar for connecting positive and negative electrodes in a battery pack in which rectangular parallelepiped cells are arranged.SOLUTION: There is provided a battery pack in which: a positive terminal of a first cell and a negative terminal of a second cell are arranged adjacent to each other; a bus bar 10 connects the positive and negative terminals; a first conductive member 11 of the bus bar includes a first joint 111 that joins with the positive terminal and a first extension 112 that extends in a first direction; a second conductive member 12 of the bus bar includes a second joint 121 that joins with the negative terminal and a second extension 122 that extends in the first direction; the first conductive member and the second conductive member are connected at a third joint 131; an end of the first extension and an end of the second extension are spaced apart in the first direction from a line connecting the first joint and the second joint; and the third joint is near either the first joint or the second joint and is formed at an overlapping portion between the first extension and the second extension.SELECTED DRAWING: Figure 2

This invention provides an energy storage device that can effectively utilize the space between the positive electrode and the negative electrode. [Solution] The energy storage device comprises a first energy storage element and a second energy storage element arranged in a first direction, and a busbar electrically connected to the first energy storage element and the second energy storage element. The first energy storage element comprises a first casing and a pair of first lead terminals that protrude from one edge of the first casing in a second direction intersecting the first direction and are arranged in a third direction intersecting the first and second directions. The second energy storage element comprises a second casing and a pair of second lead terminals that protrude from one edge of the second casing in a second direction and are arranged in a third direction. The busbar extends along the first direction, positioned between the pair of first lead terminals and between the pair of second lead terminals.

An energy storage device (battery) 1 includes an electrode assembly 20 having current correcting tabs 28, 29 each of which is formed of a plurality of projecting portions 24b, 26b projecting from a first straight line portion 20c on one side in a stacking direction of electrode sheets 21, 22. The electrode assembly 20 is housed in a case (exterior body) 10. The energy storage device further includes current collectors 60A, 60B which are electrically connected to the external terminals 50A, 50B disposed on the case 10. The current collectors 60A, 60B are connected to the current collecting tabs 28, 29 arranged in a stacking direction of the electrode sheets 21, 22 on a second straight line portion 20d side where the projecting portions 24b, 26b are not formed.

The present invention provides an energy storage device that allows for easy connection of a detection wire to a lead terminal while suppressing high resistance at the connection point of the lead terminal. [Solution] The energy storage device comprises a first energy storage element and a second energy storage element arranged in a first direction, and a detection line for detecting the state of the first energy storage element and the second energy storage element. The first energy storage element comprises a first outer casing and a first lead terminal protruding from the edge of the first outer casing. The second energy storage element comprises a second outer casing and a second lead terminal protruding from the edge of the second outer casing and joined to the first lead terminal. The first lead terminal comprises a first base and a first tip continuous with the first base. The second lead terminal comprises a second base and a second tip continuous with the second base. The first tip comprises a joining portion joined to the second tip and a protruding portion protruding from the second tip in a direction intersecting the first direction. The detection line is joined to the protruding portion.

To provide a capacitor prevented from abnormal heat generation and capable of realizing low ESL. A capacitor 1 includes: a plurality of capacitor elements 10A including a first end surface electrode 12A and a second end surface electrode 13A; a first conductor 20 in contact with and electrically connected to the first end surface electrode 12A; a second conductor 30 in contact with and electrically connected to the second end surface electrode 13A; a third conductor 40 adjacent to the first conductor 20, the third conductor 40 including an embedded part 41A positioned in a first section that overlaps with the first conductor 20 and an exposed part 42A positioned in a second section separate from the first section; and a sealing resin part 50 sealing the third conductor 40 to embed the embedded part 41A and expose the exposed part 42A.

The invention relates to a spacer (15) for interposed between a cover (6) and a terminal (2, 3) of a prismatic battery cell (1), said spacer (15) comprising a main body (60) and having a lower face (fi60) for contacting the cover (6), and an upper face (fs60) for contacting the terminal (2, 3); the spacer (15) comprising on its lower face (fi60) a raised, cross-shaped positioning element (67) for cooperating by complementary shape with a positioning element (14) delimited by the cover (6), in such a way as to block relative translation and relative rotation between the cover (6) and the spacer (15). The invention also relates to an assembly (5), and a battery cell (1) comprising such a spacer (15). Figure 1

An electrical system having a bus bar for use as a cooling element comprises: an electrical component (101b, 101d, 101e) such as a capacitor and / or a battery element; and at least one bus bar (102a, 102d) arranged to electrically connect the two or more poles of the electrical component to each other. The bus bar is tubular to allow a cooling medium, such as air or a cooling liquid, to flow through the bus bar. Since the bus bar is tubular, an inner surface and an outer surface thereof can be used as a cooling surface of the bus bar. Therefore, the cooling area of the bus bar can be increased without excessively increasing the space required by the bus bar. In addition, one or more tubular bus bars may facilitate flow management of the cooling medium.

A substrate-type multi-layer polymer capacitor (MLPC), including a casing, a core, and two electroplated terminals. The core is arranged in an inner cavity of the casing. The casing is formed by joining two first packaging plates and two second packaging plates. The two electroplated terminals are formed by electroplating. One of the two electroplated terminals is configured to cover one end of the casing to form an anode, and the other of the two electroplated terminals is configured to cover the other end of the casing to form a cathode electrically led out from the core. The first packaging plate includes a substrate, an electrode plate and two metal plates. The electroplated terminals are integrally sealed with the casing.

The invention relates to a spacer (15) for interposed between a cover (6) and a terminal (2, 3) of a prismatic battery cell (1), said spacer (15) comprising a main body (60) and having a lower face (fs60) for contacting the cover (6), and an upper face (fs60) for contacting the terminal (2, 3); the spacer (15) comprising on its upper face (fs60) a raised cross-shaped indentation (63). The invention also relates to an assembly (5), and a battery cell (1) comprising such a spacer (15). Figure 1

We provide energy storage modules with superior reliability. [Solution] The device comprises at least one cylindrical energy storage device 20, an upper holder 30 for holding the energy storage device 20, and an insulating plate 80 provided on the upper side of the upper holder 30. An exhaust valve 15 is provided at the upper end of the energy storage device 20, and an opening 32 is formed in the upper holder 30 to expose the exhaust valve 15. The insulating plate 80 has a flat main body portion 81, an opening 82 formed in the main body portion 81 and communicating with the opening 32, a cover portion 83 that covers a part of the opening 82, and a connecting portion 84 that connects the cover portion 83 and the main body portion 81. The main body portion 81 is provided with a fixing portion 85 for fixing the insulating plate 80 and the upper holder 30.

The objective is to provide energy storage devices and their manufacturing methods that can be manufactured efficiently and stably by further improving the manufacturing process of energy storage devices. [Solution] The manufacturing method of this energy storage device comprises an arrangement step of arranging the positive electrode tab group 250 and positive electrode tab group 280 in the tab housing space 670; a deformation step of deforming the spacer 600 after the arrangement step; a bending step of bending the positive electrode tab group 250 and positive electrode tab group 280 after the deformation step, with the first guide portion G1 facing the main outer surface of the positive electrode tab group 250 and the second guide portion G2 facing the main outer surface of the positive electrode tab group 280; and in the arrangement step, the spacer 600 has an open region 680 connecting the tab housing space 670 and the space outside the spacer 600, and the positive electrode tab group 250 and positive electrode tab group 280 are arranged in the tab housing space 670 via the open region 680, and in the deformation step, the spacer 600 is deformed so that the width of the open region 680 becomes smaller.

To provide a highly reliable method for manufacturing energy storage devices. [Solution] The method for manufacturing an energy storage device comprises the steps of: manufacturing an electrode body, joining a first electrode tab group to a first conductive member and attaching an insulating member to the first conductive member; inserting the electrode body into the case body from the first end side through a second opening after attaching the insulating member to the first conductive member; electrically connecting the first electrode terminals provided on the first sealing plate to the first conductive member after inserting the electrode body into the case body; and sealing the first opening with the first sealing plate after electrically connecting the first electrode terminals to the first conductive member.

The objective is to provide energy storage devices and their manufacturing methods that can be manufactured efficiently and stably by further improving the manufacturing process of energy storage devices. [Solution] The method for manufacturing this energy storage device comprises: an electrode body manufacturing step of manufacturing an electrode body 200 having a group of positive electrode tabs 250 and a group of positive electrode tabs 280; a housing step after the electrode body manufacturing step of housing the group of positive electrode tabs 250 and a group of positive electrode tabs 280 in the tab housing space 670 via the communication space 600, using a spacer 600 having a communication space 680 that connects the tab housing space 670 and the space outside the spacer 600; and a bending step after the housing step of bending the group of positive electrode tabs 250 and a group of positive electrode tabs 280 with a first guide portion G1 facing the main outer surface of the group of positive electrode tabs 250 and a second guide portion G2 facing the main outer surface of the group of positive electrode tabs 280.

To provide a highly reliable energy storage device and a method for manufacturing the same. [Solution] The energy storage device comprises a first conductive member, a second conductive member connected to the first conductive member, a first electrode terminal electrically connected to the second conductive member and provided on a first sealing plate, a base portion disposed between the second conductive member and the first sealing plate, and a first insulating member formed on the outer periphery of the base portion and including an outer peripheral wall rising in a direction intersecting the extending direction of the base portion. A welded portion is formed where the first conductive member and the second conductive member are welded together. The outer periphery of the base portion includes a first portion located near the welded portion and a second portion other than the first portion, wherein the first portion does not have an outer peripheral wall, or the maximum height of the outer peripheral wall in the first portion is lower than the maximum height of the outer peripheral wall in the second portion.

Lithium-based battery or capacitor (200, 300) or sodium-based battery or capacitor (200, 300), the battery or capacitor (200, 300) comprising: an anode (210, 310) comprising a metallic current collector foil (212, 312) having a porous layer of particles of an anode material (214, 314) bonded to each side of the current collector foil (212, 312) of the anode (210, 310), a cathode (202, 302) comprising a metallic current collector foil (204, 304) having an equally sized and shaped porous layer of particles of a cathode material (206, 306) bonded to each side of the current collector foil (204, 304) of the cathode (202, 302), wherein the anode (210, 310) and cathode (202, 302) are arranged such that a layer of a bonded anode material (214, 314) is facing a layer of a bonded cathode material (206, 306), which are kept separate by at least one porous separator (208, 308) which is connected to the facing layers of the bonded anode and cathode material (214, 314;206, 306) is congruent, wherein the pores of the separator (208, 308) and the layers of the anode and cathode material (214, 314; 206, 306) are permeated with a non-aqueous liquid electrolyte, wherein the current collector foils (204, 212) have connecting tabs (204'', 212''') for electrical contact with an external electrical circuit for the flow of an electric current to or from the battery or capacitor (200, 300); ; wherein the current collector foil (212, 312, 204, 304) made of metal of one of the anode (210, 310) and cathode (202, 302), or of both, includes an additional foil sub-area (204'', 212'', 312'', 304'') which is not coated with anode or cathode material (214, 314; 206, 306) and which is located outside its foil area of ​​the coated anode or cathode material (214, 314;206, 306), wherein the extended area of ​​the metallic current collector foil (204, 212, 304, 312) has a connecting tab (204'''', 212'''', 304'''', 312'''') for electrical contact with an external current-consuming device, so that an electric current generated during operation of the battery or capacitor (200, 300) can be passed through the extended area of ​​the metallic current collector foil (204, 212, 304, 312) to heat the extended area of ​​the current collector foil (204, 212, 304, 312), wherein the extended area of ​​the metallic current collector foil (204, 212, 304, 312) is available for use during operation of the battery or capacitor (200, 300), is dimensioned and malleable to touch and heat the battery or capacitor (200, 300) or to touch and heat a separate working battery or capacitor (200, 300).;

A disclosed secondary battery 10 includes a first electrode 14b including a first current collector having an elongated sheet shape, a second electrode 14a including a second current collector having an elongated sheet shape, a separator provided between the first electrode 14b and the second electrode 14a, and a first current collector plate 17 welded to the first electrode 14b. The first electrode 14b and the second electrode 14a are wound for 9 or more turns with the separator therebetween to constitute an electrode group 14. An end portion of the first current collector extending in the longitudinal direction thereof protrudes from one of the end surfaces of the electrode group 14. A part of the end portion is welded to the first current collector plate 17, while a region of the end portion that corresponds to inner N turns (N is an integer of 2 or more and 8 or less) is not welded to the first current collector plate 17. In the above configuration, internal short circuits due to charging and discharging can be suppressed.

At least one cylindrical electricity storage device, and an upper holder for holding an upper end side of the electricity storage device are included. A positive electrode terminal and a negative electrode terminal are disposed on an upper end part of the electricity storage device, and the negative electrode terminal is positioned in the outer side than the positive electrode terminal in a radial direction of the electricity storage device. A negative electrode lead connected to the negative electrode terminal from the outer side in the radial direction is further included. The upper holder includes a restriction part positioned in the inner side than at least a part of the negative electrode lead. A bottom surface of the restriction part protrudes toward the lower part than the surface facing an end part of one side of the electricity storage device in the upper holder.

An adhesive film for a metal terminal, which is to be interposed between a metal terminal electrically connected to an electrode of a power storage device element and a power storage device packaging material for sealing the power storage device element, wherein the adhesive film for a metal terminal has a laminate sequentially including a first polyolefin layer disposed on the metal terminal side, a base material, and a second polyolefin layer disposed on the power storage device packaging material side, at least one of the first polyolefin layer and the second polyolefin layer has a melting peak temperature of 105° C. or more and 130° C. or less, and the base material has a surface hardness of 15 N / mm2 or more, as measured in an environment at a temperature of 110° C.

We provide energy storage modules with excellent interchangeability. [Solution] The energy storage module 1 comprises a first energy storage cell 11 having a first external terminal 30, a second energy storage cell 12 having a second external terminal 40, a busbar 20 for electrically connecting the first external terminal 30 and the second external terminal 40, and current interruption devices 50 disposed between the busbar 20 and the first external terminal 30, and between the busbar 20 and the second external terminal 40, wherein each current interruption device 50 includes a first conductive member that contacts the busbar 20, a second conductive member disposed at a distance from the first conductive member and contacting the first external terminal or the second external terminal, and a current interruption structure disposed between the first conductive member and the second conductive member.

To provide a power storage module that can suppress increase in a size of molds required for manufacturing.SOLUTION: A power storage module includes an electrode laminate, a sealing body provided on the electrode laminate, and an injection resin portion joined to the sealing body, each of a plurality of electrodes includes a current collector having a rectangular shape when viewed from a first direction. The sealing body includes a welded end portion in which outer peripheral edges of a plurality of frame-like members are welded to each other, and a plurality of communication holes that communicates with an outside of a liquid injection port surface at the welded end. The injection resin portion includes a main body portion that partially covers the liquid injection port surface, and when viewed from a second direction intersecting the liquid injection port surface, and a plurality of protruding frame portions surrounding openings respectively connected to the plurality of communication holes.SELECTED DRAWING: Figure 5

To provide a method for manufacturing a power storage device that can suppress the occurrence of burnt areas in a resin member that provides insulation between the periphery of an insertion hole in a case lid member and a terminal member when forming a case by laser welding.SOLUTION: A manufacturing method of a power storage device 1 includes a laser welding step S3 of irradiating the entire circumference of an opening 20c of a case body member 20 and the peripheral portion 30f of a case lid member 30 with laser light LC with the opening 20c of the case body member 20 being blocked by the case lid member 30 of a lid assembly 15 to perform laser welding, a shielding step S2 of disposing shielding members SA, SB in the lid assembly 15 to prevent scattered light LB of the laser light LC from reaching the resin members 70, 80 prior to the laser welding step S3, and a removal step S4 of removing the shielding members SA, SB after the laser welding step S3.SELECTED DRAWING: Figure 8

To provide a power storage element capable of improving the welding quality between an electrode body and a current collector.SOLUTION: A power storage element 10 comprises: an electrode body 600 that has a lamination part 620 in which electrode plates are laminated in a first direction; and a current collector 500 bonded with the lamination part 620. The power storage element 10 comprises a molten part 800 molten by laser welding in a state where the current collector 500 is overlapped with the lamination part 620 or in a state where the current collector 500 and a patch 700 sandwich the lamination part 620. The molten part 800 is formed in a state of penetrating through a junction member (a patch 700), which is the current collector 500 or the patch 700, in the first direction. A first width A1 in a second direction orthogonal to the first direction, of the molten part 800 on a surface 710 of the junction member is 1.24 times or more a second width B1 in the second direction, of the molten part 800 on a boundary surface 720 between the junction member and the lamination part 620.SELECTED DRAWING: Figure 4

To provide a highly reliable energy storage device and a method for manufacturing the same. [Solution] The method for manufacturing an energy storage device comprises the steps of inserting an electrode body into a case body, and, after inserting the electrode body into the case body, joining a first conductive member electrically connected to the first electrode via a first electrode tab and a second conductive member, wherein at least one of the first conductive member and the second conductive member has a protrusion before joining the first conductive member and the second conductive member, and the step of joining the first conductive member and the second conductive member includes irradiating the protrusion with an energy ray and joining the first conductive member and the second conductive member.

The application discloses an end cover assembly, an energy storage device and an electric equipment. The end cover assembly comprises a lower plastic, a pin and a thermal insulation piece. The lower plastic comprises a body and an assembly groove. The body comprises a top surface and a bottom surface arranged oppositely along the thickness direction of the body. The assembly groove comprises a groove bottom surface. The groove bottom surface of the assembly groove and the bottom surface are in the same direction. The pin comprises a connecting portion, an adapter portion and a bending portion connecting the connecting portion and the adapter portion. The connecting portion and the adapter portion form an included angle. The connecting portion is accommodated in the assembly groove, and the adapter portion extends away from the lower plastic. The connecting portion comprises an inner surface, the inner surface faces away from the groove bottom surface. The adapter portion comprises an inner side surface. The bending portion comprises an inner arc surface, the inner arc surface connects the inner surface and the inner side surface. The thermal insulation piece is stacked on the pin, and the thermal insulation piece completely covers the inner surface and the inner side surface. The thermal insulation piece comprises a thickened area, and the thickened area completely covers the inner arc surface.

A battery 1100, which is an example of this electrical device, comprises: an electrical element provided with a current collector, such as a battery element 10 provided with a current collector 11; a lead terminal 18 that is electrically connected to the current collector 11; a junction part 16 that contains an electrically conductive resin and that joins the current collector 11 and the lead terminal 18; and a heat fusion section 17 that is positioned between the junction part 16 and the lead terminal 18 and that contains a solder material. The heat fusion section 17 may also be in contact with the lead terminal 18. The junction part 16 may also be in contact with the current collector 11 and the heat fusion section 17.