932results about "Capacitor housing/encapsulation" patented technology

An energy storage apparatus includes an energy storage device, a holder that holds the energy storage device, and an outer case that accommodates the energy storage device and the holder. The outer case includes an outer case main body having an opening portion and a lid body that closes the opening portion. The lid body includes a projecting portion that projects toward the holder and is brought into contact with or presses the holder in a projecting direction of the projecting portion.

An apparatus is disclosed which includes an electrolytic capacitive element with multiple capacitor sections.

The invention relates to the technical field of power electronic components, and discloses a high-temperature-resistant electrolytic capacitor which comprises the following components in parts by weight: 80-90 parts of a graphene or carbon nanotube coating used for preparing an electrolytic capacitor shell; the invention further provides a preparation method of the high-temperature-resistant electrolytic capacitor, and the preparation method comprises the following steps: heat conduction optimization design: simulating a temperature field of the electrolytic capacitor through an unsteady-state heat conduction equation, optimizing a heat dissipation path of the electrolytic capacitor, and improving the heat dissipation performance of the electrolytic capacitor; and heat can be uniformly conducted to an external heat dissipation device. By introducing the microencapsulated phase change material, the graphene coating and the accurate temperature sensor array and optimizing heat dissipation design, efficient heat dissipation, temperature balance and long-term stability of the electrolytic capacitor in a high-temperature environment are achieved, the working performance of the electrolytic capacitor is remarkably improved, and the service life of the electrolytic capacitor is remarkably prolonged.

A casing material for a power storage device, including a laminate that includes, in order, at least a base material layer, a barrier layer, and a heat-fusible resin layer. The heat-fusible resin layer includes a single layer or a plurality of layers. The heat-fusible resin layer includes at least one layer having a hardness of at least 70 MPa from a cross-section in the lamination direction of the laminate, measured using a nanoindentation method using an indentation load of 100 μN.

A capacitor that is capable of exhibiting good electrical properties under a wide variety of different conditions is provided. The capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric and includes a conductive polymer. The capacitor also contains multiple exposed anode lead portions that are electrically connected to respective anode terminations and a planar cathode termination that is electrically connected to the solid electrolyte.

A wound capacitor package structure includes a wound assembly, a conductive assembly, a package assembly, a bottom seat plate and a pin protection assembly. The conductive assembly includes a first and a second conductive pin. The package assembly is configured for enclosing the wound assembly. The bottom seat plate is disposed on a bottom side of the package assembly. The pin protection assembly includes a first pin protection layer configured to partially cover the first conductive pin, and a second pin protection layer configured to partially cover the second conductive pin. The first conductive pin includes a first exposed portion exposed outside the package assembly, and the second conductive pin includes a second exposed portion exposed outside the package assembly. The first and the second pin protection layer are disposed on the first and the second exposed portion for protecting the first and the second conductive pin, respectively.

Provided are: an electrolytic capacitor in which a decrease in electrostatic capacity is suppressed even in a high-temperature environment; and a manufacturing method. An electrolytic capacitor comprises: a capacitor element having a positive electrode foil, a negative electrode foil, an electrolytic solution, and a solid electrolyte layer; a case that accommodates the capacitor element; and a sealing body for sealing the case. The sealing body has an elastic body containing an elastomer. The elastomer contains butyl rubber, and is contained in the elastic body at 31 wt% or more. The electrolytic solution contains glycerin in the amount of 40 wt% or more in the solvent of the electrolytic solution.

A lightweight compact combined tantalum capacitor comprises a housing with an accommodating cavity formed inside, a packaging cover used for sealing the accommodating cavity, a plurality of single tantalum capacitors arranged in the accommodating cavity, and a fixing mechanism arranged between the packaging cover and the housing. The shell further comprises a plurality of placing grooves which are arranged at the bottom of the accommodating cavity at intervals and are used for placing a plurality of single tantalum capacitors, and two lead holes which are oppositely arranged on the side wall of the accommodating cavity and extend outwards; by limiting the structure of the combined tantalum capacitor, the combined tantalum capacitor structure which is attractive in appearance, compact in space and easy, convenient and rapid to assemble is obtained, meanwhile, the electrical gaps and insulativity between the end faces of the multiple single tantalum capacitors can be guaranteed, the product weight is reduced, the multiple single tantalum capacitors are stably installed, and overall installation is facilitated.

The invention discloses a special aluminum fixing capacitor for an electronic detonator with ultralow electric leakage characteristic and a preparation method thereof, the capacitor comprises a positive foil electrode, a negative foil electrode, an aluminum foil or an aluminum alloy foil coated with an oxide film on the surface, electrolytic paper and an electrolyte, and the electrolyte can be a phosphate-based electrolyte, a borate-based electrolyte or an organic electrolyte containing high-conductivity salt, and an additive, the preparation method comprises the following steps: slitting positive and negative foils and electrolytic paper, winding the positive and negative foils and the electrolytic paper to form a concentric circle, forming a repair oxide film, dipping a conductive polymer material, baking and polymerizing to form a conductive film, injecting a pouring sealant into an aluminum shell, and carrying out heat treatment to obtain the conductive aluminum shell. The formation liquid is ammonium dihydrogen phosphate, ammonium adipate or boric acid aqueous solution, and the pouring sealant is epoxy resin or polyurethane; the capacitor has an ultra-low electric leakage characteristic, is suitable for being used as a power supply energy storage element in an electronic detonator system, stabilizes power supply output and inhibits an electric leakage phenomenon.

A broadband filter plate type tantalum capacitor comprises a lead frame, a tantalum core and a ceramic capacitor, a positive electrode and a negative electrode of the tantalum core are connected with a positive electrode frame and a negative electrode frame of the lead frame respectively, the positive electrode frame and the negative electrode frame are connected through the ceramic capacitor, and the tantalum core and the ceramic capacitor are of a parallel structure. According to the utility model, through the design of the lead frame and the parallel combination mode of the ceramic capacitor and the tantalum capacitor, the volume efficiency maximization of the tantalum capacitor and the volume maximization of the tantalum core are realized, the reliability and the stability of the tantalum capacitor are improved, the use is simple, and the effect is obvious.

To allow attachment of electrolytic capacitors and other relatively large electrical circuit devices to a PCB while meeting size limitations, The PCB can include a full-through opening within which the device can be located. Along one edge of the opening, the PCB includes half-through cuts with a conductive lining extending from the opening, where the pins of the capacitor or other device can rest and form electrical connections. In addition to pins extending radially from one end of the capacitor or other device, the device includes a notch extending from the opposing end. Along the edge of the PCB opening opposing the half-through cuts for the pins, the PCB includes a half-though cut for the device's notch to rest, thereby providing mounting stability.

A solid electrolytic capacitor includes: a capacitor element including an anode part and a cathode part; a substrate that supports the capacitor element; a sealing body that seals the capacitor element; a first external electrode electrically connected to the anode part; a second external electrode electrically connected to the cathode part; and an adhesive layer disposed between the capacitor element and a first surface of the substrate. At an interface between the first surface and the adhesive layer, a maximum height Rz1 of surface roughness of the first surface is 5 μm or more, and a maximum height Rz2 of surface roughness of the adhesive layer is 3 μm or more.

The invention provides an external assembled pin of an electrolytic capacitor, and relates to the technical field of electrical elements. A first groove and two sets of second grooves are formed in the base, first bases and second bases are installed in the two sets of second grooves and connected through bolts, rotating cylinders are installed between the first bases and the second bases through bearings, and bevel gears are fixed to the lower ends of the rotating cylinders. A processing ring is clamped among the three groups of clamping blocks, when a pin of a capacitor body is inserted into the processing ring, a first adjusting rod is rotated to enable the processing ring to rotate, the pin of the capacitor body is polished through the processing ring, an oxide layer on the pin of the capacitor body can be polished off, and the capacitor body is in good contact with a needle cylinder; after the pin of the capacitor body is inserted into the needle cylinder, the locking rod is inserted into the top cylinder, the first control rod is pulled upwards to enable the upper end of the top cylinder to clamp the locking rod, and the pin of the capacitor body is prevented from being separated from the needle cylinder.

A tantalum capacitor includes a tantalum body including a tantalum element including tantalum powder, and a tantalum wire passing through at least a portion of the tantalum element in a first direction, a molded portion having fifth and sixth surfaces opposing each other in the first direction, third and fourth surfaces opposing each other in a second direction, first and second surfaces opposing each other in a third direction, the molded portion formed to surround the tantalum body, an anode lead frame connected to the tantalum wire, a cathode lead frame spaced apart from the anode lead frame, the cathode lead frame connected to the tantalum body, and a frame terminal disposed on the anode lead frame and the cathode lead frame to be spaced apart from the second surface of the molded portion.

An electrochemical device is provided capable of maintaining good electrical connection and providing good sealability. An electrochemical device 1 includes: a case 10 including a recessed container 11 having a bottom 111 and a side wall 112, and a cap 12 that covers the opening of the recessed container 11; a power generation element 20 having a laminate with an electrode layer 21, an electrode layer 22 and a solid electrolyte layer 23 laminated together and housed in the interior space of the case 11 such that the bottom 111 and electrode layer 21 face each other; and a conductive plate 30 positioned adjacent to the opening of the recessed container 11 and between the electrode layer 22 and cap 12. The recessed container 11 includes a plurality of supports 115 on the inner peripheral surface of the side wall 112. The conductive plate 30 includes a plurality of supported portions 31 located on its edges and corresponding in position to the supports 115. With each supported portion 31 supported by its associated support 115, the power generation element 20 is pushed by a spring piece 33 of the conductive plate 30 toward the bottom 111 of the recessed container 11.

To provide an exterior material for a power storage device which is difficult to be deformed even when being pressurized under high temperature environment.SOLUTION: An exterior material for a power storage device includes a base material layer, a barrier layer, a thermal adhesive resin layer or an adhesive layer, and a sealant layer which are laminated in this order, wherein when the thermal adhesive resin and the sealant layer, or the sealant layer is represented by (I), and the base material layer is represented by (II), a loop stiffness value of (I) is 10 mN or more and 80 mN or less, a loop stiffness value of (II) is 2 mN or more and 20 mN or less, a ratio (I / II) in the loop stiffness value of (I) to (II) is 1.0 or more and 15 or less, and a ratio (I / II) in the thickness of (I) to (II) is 1.0 or more and 8.0 or less.SELECTED DRAWING: Figure 1

The utility model discloses a high-sealing liquid-leakage-proof aluminum electrolytic capacitor structure, relates to the technical field of capacitors, and solves the problems that an existing aluminum electrolytic capacitor is connected with an aluminum shell only through extrusion of a sealing cover plate in the assembling process, then electrolyte in the aluminum electrolytic capacitor is prevented from leaking, the anti-pressure capability of the aluminum electrolytic capacitor is low, and the service life of the aluminum electrolytic capacitor is prolonged. And the aluminum electrolytic capacitor is easy to damage when being extruded, so that the quality of the aluminum electrolytic capacitor is poor. Comprising a heat-shrinkable sleeve, and an aluminum shell sleeve is arranged in the heat-shrinkable sleeve; according to the utility model, the sealing expansion glue flows into the annular fluid groove for filling expansion, so that a second sealing effect is formed between the sealing cover plate and the aluminum shell sleeve, a high sealing effect is formed between the aluminum shell sleeve and the sealing cover plate, the sealing cover plate is positioned and pressed, and the sealing cover plate is prevented from being damaged in the process of pouring the sealing glue. And the sealing cover plate is pushed upwards.

The invention relates to the technical field of power electronics, and discloses a high-voltage aluminum electrolytic capacitor, which comprises a capacitor main body, the outer surface of the capacitor main body is fixedly connected with a cathode pin and an anode pin, the outer surface of the capacitor main body is provided with an inner concave surface, and the outer surface of the inner concave surface is clamped with a leakage-proof mechanism. A heat dissipation mechanism is clamped in the capacitor main body, a protection mechanism is fixedly connected to the outer surface of the capacitor main body, the leakage-proof mechanism is used for overall leakage prevention through a sleeve shell, independent drainage is carried out on pins, leaks are separated by using rib plates, and a gas monitor and a rubber air bag are further arranged; the heat dissipation mechanism sleeve shell prevents leakage, and meanwhile, heat dissipation fins are arranged at the top for heat dissipation; the protection mechanism elastically supports and fixes the capacitor during leakage, prevents displacement of the capacitor from damaging a circuit board, can physically separate leaks, and guarantees the stability and safety of a circuit in an omnibearing manner.

The invention provides a lightweight flexible composite micro-energy storage module, which comprises a flexible substrate, a composite electrode layer, a solid electrolyte layer and a packaging layer, and is characterized in that the flexible substrate is made of a polyurethane-graphene composite material, the thickness of the flexible substrate is 50-200 [mu] m, and the surface of the flexible substrate is provided with a micro-crack structure; the composite electrode layer is formed by alternately stacking MXene / silicon carbon composite nanosheets and polypyrrole conductive polymers, wherein the mass ratio of MXene to silicon carbon is 3: 1 to 5: 1. According to the invention, through the mechanical interlocking design of the microcrack structure of the flexible substrate and the composite electrode layer, the interlayer binding force is significantly enhanced, and the structural integrity under dynamic bending is improved; the root-shaped ion transmission channel of the solid electrolyte layer and the vertical orientation transition layer realize electron-ion dual-channel cooperative transmission and reduce the interface impedance; the gradient hydrophobic structure of the packaging layer is matched with mechanics through chemical bonding, the sealing performance, the flexibility and the environmental tolerance are balanced, and the service life of the module is prolonged.

This invention discloses a surface-mount solid aluminum electrolytic capacitor and its manufacturing method, comprising a capacitor core package, which includes N capacitor cores, N+1 conductive metal meshes, a substrate, anode leads, cathode leads, and a silver paste covering tape. The capacitor core package is encapsulated and electroplated to form a solid aluminum electrolytic capacitor. The capacitor core includes an anode portion, a cathode portion, and an insulating barrier tape. In this invention, the conductive metal mesh sandwiched between the metal pads in the anode portion of the capacitor core and the cathode portion of the capacitor core can achieve the flatness of the core package. The silver paste covering tape located on the side of the cathode portion of the core package is embedded in the gap formed between two adjacent capacitor cores due to the conductive metal mesh sandwiched, forming an integrated connection. This prevents the resin encapsulant from being squeezed into the core layers during encapsulation, preventing core deformation damage that could lead to increased leakage current and increased ESR. Furthermore, it can prevent insufficient capacitance or even capacitor failure caused by delamination between cores.

A capacitor includes a capacitor element having a predetermined liquid preparation held between a pair of electrodes facing each other across a separator, a body case for housing the capacitor element, and a sealing member made of rubber for sealing seals the body case. A supplying portion is provided in contact with the sealing member to supply the liquid preparation held in the capacitor element to the sealing member. The liquid preparation has a lipid-soluble sealing member deterioration preventing agent dissolved in a lipophilic solvent. The sealing member deterioration preventing agent supplied by the supplying portion to the sealing member permeates the sealing member. The ratio by weight of the sealing member deterioration preventing agent in the sealing member to the sealing member is 0.1% by weight to 25% by weight.

An electrolytic capacitor includes a capacitor element that includes an anode part and a cathode part, an exterior body that seals the capacitor element, a first external electrode that is electrically connected to the anode part, and a second external electrode that is electrically connected to the cathode part. At least one of an end face of the anode part or an end face of the cathode part is exposed from the exterior body to be electrically connected to a corresponding one of the first external electrode or the second external electrode. The end face exposed from the exterior body is covered with an electroless Ni plating layer, and the electroless Ni plating layer is covered with an electroless Ag plating layer. The electroless Ag plating layer is covered with the corresponding one of the first external electrode or the second external electrode.

The invention relates to the technical field of power electronic components, and discloses a fast charge-discharge aluminum electrolytic capacitor and a preparation method thereof. The fast charge and discharge aluminum electrolytic capacitor comprises a high-purity aluminum foil subjected to aluminum chloride-hydrochloric acid etching and oxalic acid-tartaric acid oxidation treatment, a porous electrolyte layer with the thickness of 0.015-0.020 mm, a composite organic-inorganic electrolyte and an aluminum shell packaging structure, the preparation method comprises the steps of aluminum foil processing, electrolyte cutting, winding and assembling, vacuum infusion under-0.09 to-0.095 MPa, staged aging charging under the condition of 70-90 DEG C, and finally packaging and forming. According to the method, a compact oxidation film is formed through anodic oxidation, the proportion of gamma-butyrolactone in the electrolyte is optimized, the staged voltage aging and vacuum infusion process is implemented, and the fast charging performance, high-temperature stability and overall reliability of the aluminum electrolytic capacitor are synergistically improved from the material level and the process level.

A capacitor element structure, a capacitor assembly packaging structure and an electronic device. The capacitor assembly packaging structure includes a capacitor assembly, an insulating package body and an electrode assembly. The capacitor assembly includes a plurality of capacitor element structures stacked in sequence and electrically connected to each other. The insulating package body is configured to encapsulate the capacitor element structures. The electrode assembly includes a first electrode structure and a second electrode structure that are configured to cooperate with the insulating package body and electrically connected to the capacitor element structure. Each of the capacitor element structures includes an oxide layer, the oxide layer has a plurality of micro recessed spaces that are irregularly concaved and arranged, and each of the micro recessed spaces is partially filled with an electrolyte substance.

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.

To provide a packaging material for a power storage device that includes a heat-fusible resin layer containing polypropylene and polyethylene, in which whitening and deterioration in insulation properties due to molding are suppressed.SOLUTION: A packaging material for a power storage device is constituted of a laminate comprising at least a base material layer, a barrier layer, and a heat-sealable resin layer in this order from an outer side to an inner side. The heat-sealable resin layer contains polypropylene and polyethylene. A sea-island structure is observed in a cross-sectional image obtained using a scanning electron microscope with respect to a cross section in a thickness direction parallel to a TD of the heat-sealable resin layer. The cross-sectional image is obtained within a range of 12.5% of a thickness from a surface opposite a barrier layer side of the heat-sealable resin layer when a total thickness of a layer located closer to the inner side than the barrier layer is taken as 100%. In the cross-sectional image, a ratio of a total number of island portions having an area of 0.02 μm2 or less among the island portions to a total number of island portions of the sea-island structure is 80.0% or more.SELECTED DRAWING: None

The utility model discloses an aluminum electrolytic capacitor, and relates to the technical field of capacitors. The aluminum electrolytic capacitor comprises a shell, a fixing block is arranged on the lower side of the interior of the shell, a core bag is arranged on the upper surface of the fixing block, the diameter of the core bag is smaller than that of the fixing block, a barrel with an opening in the lower end is longitudinally arranged in the shell, and the fixing block can play a role in limiting the lower end of the barrel through the structures such as the fixing block and the barrel; compared with the prior art, the core cladding can be protected through the cooperation of the fixing block and the cylinder, the structure is simple, the structure is convenient to install, the diameter of the core cladding is smaller than the diameter of the fixing block, a gap is reserved between the cylinder and the core cladding, and therefore the core cladding can be prevented from being damaged, and the service life of the core cladding is prolonged. And when the barrel body is extruded and deformed, the core package is not influenced immediately, so that the use of the core package is not influenced under the condition that the barrel body is deformed to a certain degree.

A solid electrolytic capacitor includes a laminate in which capacitor elements each including an anode foil, and cathode foils are laminated, an exterior resin covering the laminate and having a first end face on which a part of each anode foil is exposed and a second end face on which a part of each cathode foil is exposed, an anode external electrode electrically connected to each anode foil at the first end face, and a cathode external electrode electrically connected to each cathode foil at the second end face. A first average distance from an end point on the second end face to the respective cathode foils in the lamination direction on the mounting surface side of the exterior resin is smaller than a second average distance from the end point to the respective cathode foils in a region where the capacitor elements and the cathode foils overlap.

An aluminum electrolytic capacitor with long service life comprises an aluminum shell, a core bag and a rubber plug, and the core bag is arranged in the shell in a sealed mode through the rubber plug. One end of the core package is provided with a liquid absorption pad made of electrolytic paper or silica gel, and electrolyte is absorbed on the liquid absorption pad. According to the utility model, the liquid absorption pad is arranged in the aluminum shell, so that when an oxidation film on the surface of the anode foil of the aluminum electrolytic capacitor is damaged, the aluminum electrolytic capacitor can generate heat; when the aluminum electrolytic capacitor emits heat, the electrolyte absorbed in the liquid absorption pad can be released, so that the electrolyte enters the core package to repair an oxidation film on the surface of the anode foil; therefore, the service life of the aluminum electrolytic capacitor is prolonged.

A capacitor includes a capacitive element arranged in a housing, wherein in or on the housing a gas dissipation element is arranged and / or wherein the capacitor has an electrolyte that comprises an organic acid having a pka of 4.1 or higher and / or wherein the capacitor has an OMS of 20% or higher.