613results about "Hybrid capacitor terminals" patented technology

The invention provides an embedded structure energy storage integrated composite material and a preparation method thereof, and belongs to the technical field of composite materials and electric energy storage. A sandwich structure is adopted, an energy storage unit is embedded in an insulation honeycomb / grid core material, and high-strength fiber composite material panels are arranged on the upper side and the lower side of the insulation honeycomb / grid core material. In the aspect of a material system, the panel has both mechanical strength and electrical insulation property; in structural design, gradient thickness and multi-cavity layout are introduced to improve the multi-direction load bearing capacity. Automatic switching, energy management and fault diagnosis among the energy storage units are realized by a flexible circuit and an intelligent chip which are internally integrated; meanwhile, a sensing network is embedded to monitor structural strain, vibration and battery state in real time, and a structural health monitoring function is provided. The obtained composite material has the characteristics of high structural strength, high energy storage efficiency and high safety intelligent degree, can be widely applied to the fields of aerospace, automobiles and the like, realizes the integrated design of the structure and energy storage, and achieves the purposes of reducing weight and improving functions.

A wiring module is directed to a wiring module configured to be attached to a plurality of power storage elements having electrode terminals. The wiring module includes: a plurality of busbar units: and wires connected to the busbar units. Each of the busbar units includes: a busbar connected to the electrode terminals; a circuit board; and a fixing means configured to fix the circuit board to the busbar. A conductive path is routed on the circuit board, and the conductive path includes: a connection land electrically connected to the busbar; and a wire land soldered to the corresponding wire. The busbar includes a crimping part that fixes the wire, and the wire is interposed between the crimping part and the circuit board.

The electrochemical device includes: a case including a recessed container having a bottom and a side wall, and a cap covering the opening of the recessed container; a power generation element including a laminate having an electrode layer, an electrode layer and a solid electrolyte layer laminated together and contained in the interior space of the case such that the bottom and electrode layer face each other; and a conductive plate located adjacent to the opening of the recessed container and positioned between the electrode layer and cap. The recessed container includes insertion holes with openings in the upper end surface of the side wall. The conductive plate includes elastic locking portions located on edges thereof and corresponding in position to the insertion holes. With each elastic locking portion inserted in an insertion hole, the tip portion of the elastic locking portion presses a side surface of the insertion hole.

An energy storage assembly for storing electrical energy. The energy storage assembly comprises a plurality of cabinets, with each cabinet having a positive terminal and a negative terminal for receiving and delivering electrical energy. Each cabinet also has energy storage modules. The energy storage modules are arranged in vertical stacks within the cabinets. The modules each comprise two or more rows of energy storage cells, with each row of energy storage cells having its own positive terminal and negative terminal. The rows of energy storage cells within each module reside electrically in series. At the same time, the energy storage modules reside electrically in series between the positive terminal and the negative terminal of its respective cabinet. Additionally, each of a plurality of cabinets resides electrically in series, forming strings. Cooling systems force air from one end of the cabinet to the other end of the cabinet.

A power storage device includes an electrode body, an electrode terminal connected to the electrode body, and an exterior body that seals the electrode body. The exterior body is configured from a film-like exterior member and includes a first sealing portion joined to the exterior member in a state where the exterior member envelops the electrode body. The exterior member includes a barrier layer. The power storage device has a resin film for a power storage device disposed at least partially inwards of the barrier layer. The resin film for a power storage device includes at least one among a water absorbent and a gas absorbent.

An energy storage assembly for storing electrical energy. The assembly comprises a plurality of cabinets, wherein each cabinet has an input terminal for receiving electrical energy, and a negative terminal for delivering electrical energy. Each cabinet also has a plurality of energy storage modules. The modules are stacked in vertical arrangement along the cabinets. The modules each comprise two or more rows of energy storage cells, with each row of energy storage cells having its own positive and negative terminals. The rows of energy storage cells within each module reside electrically in series. Additionally, the energy storage modules reside electrically in series between the positive and negative terminals of its respective cabinet. Additionally, each of the plurality of cabinets resides electrically in series. A chilled gas coolant passes along the rows of energy storage cells to cool the cells during operation of the energy storage assembly.

This exterior material for a power storage devices is composed of a laminate including at least a base material layer, a barrier layer, and a heat-fusible resin layer in this order, the base material layer is composed of two or more layers, the base material layer includes one or more polyester films, and the base material layer has a work hardening index of 2.5 or more and 4.5 or less in both the longitudinal direction and the width direction and a difference in the work hardening index in the longitudinal direction and the width direction of 1.4 or less.

A power storage device includes a power storage element, a case having a bottomed cylindrical shape with an opening at one end, and housing the power storage element, a sealing member sealing the opening, and a current collecting plate. The current collecting plate has a first region electrically connected to an external terminal that the sealing member or the case has, a second region joined to the power storage element, at least one first conductive part linking the first region to the second region, and at least one second conductive part linking the first region to the second region. The electrical resistance of the first conductive part is different from the electrical resistance of the second conductive part.

A power storage device includes an electrode assembly where a positive electrode plate and a negative electrode plate are wound with a separator interposed between the positive electrode and negative electrode plates; and a positive electrode current collector joined to the positive electrode plate at an upper end of the electrode assembly in axial direction P. The positive electrode current collector includes a plate-shaped flange joined to the positive electrode plate at a face facing the positive electrode plate in axial direction P and a column with an adjustable length in axial direction P that protrudes from the flange toward an upper side in axial direction P.

A disclosed electrode plate 21 for power storage device use includes an elongated sheet-shaped current collector 22 having a first main surface 23 and a second main surface 25, and a first active material layer 27 provided on the first main surface 23. The first main surface 23 has at least one first uncoated portion 24 located at one end of the current collector 22 in the widthwise direction, and on which the first active material layer 27 is not provided. The first uncoated portion 24 has a first longitudinal edge 24a coinciding with a part of the outer edge of the current collector 22, paired first widthwise edges 24b extending in the widthwise direction from the endpoints of the first longitudinal edges 24a, and a first connection edge 24c connecting the endpoints of the paired first widthwise edges 24b. Half or more of the first connection edge 24c extends obliquely relative to the longitudinal direction of the current collector 22. Thus, wrinkle formation in the uncoated portion can be reduced.

The invention discloses an all-welded double-explosion-proof supercapacitor and a manufacturing method thereof. The supercapacitor comprises a positive electrode outer cover assembly, a negative electrode composite terminal, a battery cell and a shell. The manufacturing method comprises the following steps: separately assembling the positive electrode outer cover assembly, the negative electrode composite terminal, the battery cell and the shell; and carrying out vacuum drying, liquid injection, standing infiltration, formation, aging and capacity grading operation to obtain the all-welded double-explosion-proof supercapacitor. The single-side tab structure design is adopted, isolation of the positive electrode and the negative electrode is achieved at the same end, and the grouping space utilization rate is increased; by means of split stamping manufacturing and welding composite connection, full-automatic operation in the assembling process is achieved, the product uniformity is effectively improved, the production efficiency is improved, and the manufacturing cost is reduced; the internal resistance of the battery core is reduced, large-current charging and discharging are realized, and the power performance is improved; the insulation sealing effect, the high temperature resistance and the service life are effectively improved, and the problem of liquid leakage in the use process of the capacitor is solved; and the circuit and the cell management system are effectively protected while the safety of the cells is ensured.

The application belongs to the field of supercapacitors, and more particularly relates to a high-capacity hybrid supercapacitor with uniform heat distribution for special vehicles. The structure of the hybrid supercapacitor comprises a positive electrode sheet, a negative electrode sheet, a positive electrode tab, a negative electrode tab, a diaphragm and a container shell. The supercapacitor provided in the application is designed to be large in size, not only meeting the high energy requirement of the special vehicle, but also effectively solving the connection problem of the small-size hybrid supercapacitor, and meeting the high power and rapid charging requirement which cannot be met by the lithium ion battery.

Provided are: at least one cylindrical power storage device (20); and an upper holder (30) that holds an upper end side of the power storage device, a positive electrode terminal (26) and a negative electrode terminal (25C) being disposed at an upper end portion of the power storage device, the negative electrode terminal being disposed at a position that is more outward in a radial direction of the power storage device than the positive electrode terminal, and a negative electrode lead (50) that is connected to the negative electrode terminal from an outer side in the radial direction, the upper holder having a restriction portion (34) that is located at a position that is more inward in the radial direction than at least a portion of the negative electrode lead.

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.

This lid is used for an outer package of a power storage device. The lid comprises: a lid body; a through-hole that penetrates the lid body; an insulation member including an in-hole disposition part disposed inside the through-hole, and an out-of-hole disposition part connected to the in-hole disposition part and disposed outside the through-hole; and a barrier member that covers at least a portion of the out-of-hole disposition part of the insulation member. The barrier member has a moisture barrier property and / or gas barrier property higher than that of the insulating member.

In order to allow current tab (thermal), invention proposes a method for manufacturing a current tab member (7) for an electrode assembly (3) of an energy storage cell (1), e.g. a supercapacitor (11), the electrode assembly (3) comprising a negative electrode and a positive electrode, each electrode including a carbon material that includes micropores, and the electrodes are separated by a separator, wherein the current tab member (7) comprises: - a terminal portion (71); - at least one contacting portion (72) that is configured to conductively contact the electrode assembly (3); and - a heat sink portion (73) that is interposed between and adjacent to the terminal portion (71) and the contacting portion (72).

To provide a power storage device with high reliability in sealing property.SOLUTION: A power storage device 100 disclosed herein includes an electrode body 20a that includes a first electrode, a case 10 that accommodates this, and a first current collector member 70 that is electrically connected to the first electrode. The case 10 includes a first wall 14 having a first penetration hole 18. The first current collector member 70 includes a first region 71 disposed along an inner surface 14b of the first wall 14. The first region 71 includes a protrusion part 72 protruding toward the first wall 14. At least a part of the protrusion part 72 is disposed in the first penetration hole 18. To the protrusion part 72, a terminal member 30 is connected. An insulating member 80 is a unified object including an insulating part disposed between the first wall 14 and the first current collector member 70, and an insulating part disposed between the first wall 14 and the terminal member 30.SELECTED DRAWING: Figure 12

To keep the sealability around a current collecting terminal even if a case member is deformed.SOLUTION: A power storage device includes a current collecting terminal 30 including an external connection part 31, an electrode body connection part 32, and an annular sealing part 33 connected to the external connection part 31 and the electrode body connection part 32, and an insulating member 40 extending between the sealing part 33 and the case member 10 and into an annular part 33a of the sealing part 33. The annular part 33a of the sealing part 33 is formed by cutting a part of the inner periphery and bending another part. The sealing part 33 is disposed outside the case member 10, and the electrode body connection part 32 is formed at the bent part of the sealing part 33 and is inserted into the case member 10 from a terminal attachment hole 16. Alternatively, the sealing part 33 is disposed inside the case member 10 and the external connection part 31 is formed at the bent part of the sealing part 33 and extracted from the terminal attachment hole 16 to the outside of the case member 10.SELECTED DRAWING: Figure 4

An energy storage device includes: an electrode assembly formed by stacking a plurality of plates and elongated in a predetermined direction intersecting with a stacking direction; a container that accommodates the electrode assembly and is elongated in the predetermined direction; and a positive electrode terminal and a negative electrode terminal that are electrically connected to the electrode assembly. The electrode assembly includes: an electrode assembly body; and a pair of connecting portions that protrudes from one end portion of the electrode assembly body in the predetermined direction, and is electrically connected to the positive electrode terminal and the negative electrode terminal. A protruding portion on which the pair of connecting portions is disposed is formed at one end portion of the container in the predetermined direction.

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.

To provide a power storage device and the like that can maintain good sealing between a resin member that fixes a terminal member to a case member and the case member and the terminal member.SOLUTION: A power storage device 1 includes a case member 21 having an insertion hole 21h, a terminal member 40, and a resin member 60 that fixes the terminal member 40 to the case member 21. The terminal member 40 includes a terminal top plate portion 43 and a terminal extension portion 53. The terminal member 40 and the resin member 60 are airtightly sealed only at a top plate roughened portion 47 that is formed in a band-like ring shape on the top plate back surface 45 of the terminal top plate portion 43 and has a roughened surface. The case member 21 and the resin member 60 are airtightly sealed only at a case roughened portion 27 that is formed in a band-like ring shape on the case inner side surface 24 of the case member 21 and has a roughened surface.SELECTED DRAWING: Figure 3

To provide a method for manufacturing a sealed container lid capable of attaching an terminal to a lid body while securing sealing properties and insulation properties. A method for manufacturing a sealed container lid of the present invention includes a first arrangement step of arranging an insulating flange 42 so as to overlap with a terminal flange 32, a first heating step of heating the insulating flange 42 overlapping with the terminal flange 32, a first joining step of pressing the insulating flange 42 on the terminal flange 32 in a state where a pair of pressure portions 55, 56 sandwich the terminal flange 32 and the heated insulating flange 42, and joining the insulating flange 42 to the terminal flange 32, a second arrangement step of arranging the insulating flange 42 so as to overlap with a lid body 15, a second heating step of heating the insulating flange 42 overlapping with the lid body 15, and a second joining step of pressing the insulating flange 42 on the lid body 15 in a state where the pair of pressure portions 55, 56 sandwich the lid body 15 and the heated insulating flange 42, and joining the insulating flange 42 to the lid body 15.

The disclosed secondary battery (10) is provided with a first electrode (14b) having a long-sheet-shaped first current collector, a second electrode (14a) having a long-sheet-shaped second current collector, and a separator interposed between the first electrode (14b) and the second electrode (14a). The first electrode (14b) and the second electrode (14a) are wound with a spacer therebetween to form an electrode group (14). The secondary battery (10) further comprises a conductive member (16) electrically connected to the second electrode (14a), and an insulating plate (23) provided between the electrode group (14) and the conductive member (16) and insulating at least the first electrode (14b) and the conductive member (16). The insulating plate (23) has a protruding part (23a) which is provided so as to face the innermost peripheral region of the electrode group (14) and protrudes toward the electrode group (14). Thus, internal short circuit caused by charging and discharging can be suppressed.

A cylindrical battery (10) which is one example of an embodiment of the present invention comprises, as an electrode plate, an electrode (14) that includes a positive electrode plate (11) and a negative electrode plate (12). The electrode plate includes: a core; a mix layer which is formed on the core; a lead which is connected to an exposed section of the core at which the surface thereof is exposed; and an identification display. In the exposed section, at least a part of the identification display is formed within a projection range in which the contour of the lead is projected.

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.

An adhesive film for a metal terminal being interposed between a metal terminal electrically connected to an electrode of a power storage device element, and a power storage device external member that seals the power storage device element. The adhesive film is configured from a laminate provided with: a first polyolefin layer disposed on the metal terminal side; a base material; and a second polyolefin layer disposed on the power storage device external member side. Under the following measurement conditions, the restoration rate measured when an indenter is pressed in a vertical direction with respect to a cross section in a thickness direction of the first polyolefin layer is 46.0% or greater. Restoration rate measurement conditions are a load of 10 mN, a load application speed of 1 mN / 10 seconds, retention time of 10 seconds, a load releasing speed of 1 mN / 10 seconds, and measurement temperature of 25° C.

The invention discloses an energy storage power supply module structure and an assembling method, and relates to the technical field of energy storage power supplies, the energy storage power supply module structure comprises a module framework, a plurality of super capacitor modules, a positive electrode connecting bar, a middle connecting bar and a negative electrode connecting bar, the module framework is internally provided with an accommodating cavity, and the module framework is provided with a positive electrode interface and a negative electrode interface; the plurality of super-capacitor modules are located in the accommodating cavity, each super-capacitor module comprises at least one super-capacitor monomer, all the positive pole columns of the same super-capacitor module are arranged on the same side, and all the super-capacitor monomers are distributed in an array; the positive electrode connecting bar is connected to the positive electrode interface and all positive electrode posts of one super capacitor module; the middle connecting bar is connected to the negative pole of the previous super capacitor module and the positive pole of the next super capacitor module; and the negative electrode connecting bar is connected to the negative electrode interface and all negative electrode posts of the last super capacitor module. The series-parallel flexible configuration of monomers in the module is realized, and the applicability of the energy storage power supply module is improved.

An electrical device includes: a housing part made of a metal and including a feedthrough therethrough, an opening of the feedthrough, a first region, and a second region, the opening receiving a conductive material or a conductor in a glass material or a glass-ceramic material, wherein: (i) the conductive material has a first coefficient of expansion α1, the glass material or the glass-ceramic material has a second coefficient of expansion α2, and the housing part has a third coefficient of expansion α3, the third coefficient of expansion α3 being always greater than the second coefficient of expansion α2; or (ii) the first region including a width W that is substantially perpendicular to the axis of the at least one opening, the width W of the first region being always greater than a thickness D2 and a thickness DE of the second region; or (iii) a combination of (i) and (ii).

A power storage element according to one aspect of the present invention has a laminate structure provided with a positive electrode base material, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode base material in the stated order, and comprises a negative electrode tab connected to the negative electrode base material. The negative electrode active material layer contains at least one negative electrode active material selected from the group consisting of metallic lithium and substances alloyed with elemental lithium. An electrically insulating inorganic member is arranged on a side surface at a portion where the positive electrode active material layer faces the negative electrode active material layer with the solid electrolyte layer interposed therebetween, among the side surfaces of the positive electrode active material layer. The positive electrode active material layer and the electrically insulating inorganic member are both laminated on the same surface of the positive electrode base material. A portion where the electrically insulating inorganic member and the negative electrode tab overlap is present when viewed in the lamination direction. The overlapping portion is provided with a fixing member that covers at least part of the negative electrode tab, thereby fixing the negative electrode tab.

An energy storage apparatus suitable for mounting on a printed circuit board using a solder reflow process is disclosed. In some embodiments, the apparatus includes: a sealed housing body (e.g., a lower body with a lid attached thereto) including a positive internal contact and a negative internal contact (e.g., metallic contact pads) disposed within the body and each respectively in electrical communication with a positive external contact and a negative external contact. Each of the external contacts provide electrical communication to the exterior of the body, and may be disposed on an external surface of the body. An electric double layer capacitor (EDLC) (also referred to herein as an "ultracapacitor" or "supercapacitor") energy storage cell is disposed within a cavity in the body including a stack of alternating electrode layers and electrically insulating separator layers. An electrolyte is disposed within the cavity and wets the electrode layers. A positive lead electrically connects a first group of one or more of the electrode layers to the positive internal contact; and a negative lead electrically connects a second group of one or more of the electrode layers to the negative internal contact.