210results about "Winding capacitor machines" patented technology

A method for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention discloses a solid-state capacitor and a preparation method thereof, and the preparation method comprises the following steps: (1) core package winding: interposing electrolytic paper between an anode foil and a cathode foil, and winding to form a core package; (2) a repairing step: immersing the core package into a formation liquid for repairing treatment; (3) a drying step: carrying out drying treatment on the core package in the step (2); (4) an impregnation step: immersing the core package in the step (3) into a first impregnation liquid for impregnation treatment; performing drying; immersing into a second impregnation liquid for impregnation treatment, and drying; (5) a polymerization step: immersing the core cladding in the step (4) into an oxidation liquid for polymerization; and (6) assembling, girdling and aging treatment.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention relates to the technical field of data processing, in particular to an equipment abnormity monitoring method for capacitor component production, which comprises the following steps: acquiring the temperature and current of a capacitor core winding machine at each moment, selecting a target moment, and calculating the temperature and current of the capacitor core winding machine according to the temperature and current difference between the target moment and a plurality of historical moments. Determining a temperature deviation degree and a current deviation degree of the target moment, then calculating a first abnormal degree of the target moment, obtaining first abnormal degrees of a plurality of historical moments of the target moment, and correcting the first abnormal degree of the target moment into a second abnormal degree according to a change trend of the first abnormal degree; according to the method, the second abnormal degree at the target moment is compared with the preset threshold value, abnormity monitoring of the capacitor core winding machine is achieved, the interaction among the parameters of the capacitor core winding machine and the dynamic change trend are fully considered, and the accuracy and reliability of abnormity monitoring are improved.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. The method may include providing a multi-roll calender system comprising a first calender roll, a second calender roll; rotating the first calendering roll at a first rotational velocity; rotating the second calendering roll at a second rotational velocity; providing a first dry electrode material to a first nip between the first calendering roll and the second calendering roll to form a dry electrode film. The second rotational velocity may be greater than the first rotational velocity.

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.

The invention discloses a high-performance electrode foil and a sintering process thereof. The sintering process comprises the following steps: carrying out hydration treatment on an aluminum-containing interlayer foil to obtain a hydrated interlayer foil; winding the base layer foil and the hydrated interlayer foil at intervals to form a foil roll; and sintering the foil roll. The adopted interlayer foil is the aluminum-containing interlayer foil, and when the aluminum-containing interlayer foil is subjected to hydration treatment, hydrated aluminum hydroxide can be formed on the surface of the aluminum-containing interlayer foil; when sintering is carried out, on one hand, hydrated aluminum hydroxide on the surface of the hydrated interlayer foil can be decomposed, generated water can react with aluminum powder on the surface of the base layer foil at a high temperature, aluminum oxide and hydrogen are generated, and therefore the purposes of promoting the aluminum powder on the surface of the base layer foil to generate aluminum oxide and promoting the sintering process are achieved, and aluminum powder oxidation is more uniform; and on the other hand, generation and decomposition of aluminum hydroxide can cause a large number of pores to be generated in the interlayer foil, so that the adhesive gasified from the base layer foil is better adsorbed, adhesive discharging is more complete, and improvement of the performance of the electrode foil is facilitated.

The invention relates to the technical field of capacitors, in particular to a high-thermal-conductivity thin-film capacitor of a graphite material and a preparation method thereof, and the preparation method comprises the following steps: spraying a graphene dispersion liquid on the surface of a thin film, judging the conductive state of a coating, and adjusting winding parameters to control spraying equipment to move; judging whether the graphene layer is uniformly distributed or not, and checking the concentration of the dispersion liquid, or checking the actual layer thickness; the dispersion state of the graphene dispersion liquid is judged, the reason for uneven distribution of the graphene layer is determined, and the ultrasonic treatment duration or spraying parameters are adjusted; spraying parameters are adjusted according to whether the actual layer thickness meets the curing requirement or not, or drying and curing are conducted; determining the curing degree of the graphene coating, winding the film roll material into a capacitor core package, or carrying out thermal stability test on the capacitor core package, calling back the judgment standard of the conductive state of the coating and the distribution of the graphene layer, and adjusting the initial detection length; according to the invention, the working temperature of the capacitor is reduced by coating the high-thermal-conductivity graphene material.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. 62385256

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.

The utility model discloses a capacitor winding device based on a tension adjusting and deviation rectifying function, which relates to the technical field of capacitor manufacture and comprises a bearing substrate, a tension adjusting base is arranged on one side of the front end of the bearing substrate, and a tension adjusting device is arranged on the tension adjusting base. A winding mechanism is mounted on the other side of the front end of the bearing base plate, a driving mechanism is mounted on the other side of the rear end of the bearing base plate, the output end of the driving mechanism is in transmission connection with the winding mechanism, and the tension adjusting base comprises a bearing table, a first mounting plate, a second mounting plate, a first speed reducer and a servo motor; the first mounting plate and the second mounting plate are mounted on the two sides of the bearing table correspondingly, mounting holes are formed in the rear end of the first mounting plate and the rear end of the second mounting plate correspondingly and used for being connected with the bearing base plate through bolts, and the problem that in the using process of an existing device, shutdown operation is needed for deviation correction, and the machining efficiency is affected is solved.

To provide a power storage element in which generation of a gap between electrodes is suppressed.SOLUTION: A power storage element comprises a wound electrode body 2 having a flat shape and a winding core 6 disposed in a central part of the wound electrode body. The winding core has a flat shape formed by winding a belt-like sheet member and including two folding positions 7A and 7B. The winding core 6 includes a cylindrical part 8 and inner peripheral margin parts 9A and 9B which are disposed inside of the cylindrical part and in which only one end is fixed to the cylindrical part. A length of the inner peripheral margin parts is shorter than a distance from fixing positions 10A and 10B with the cylindrical part 8 to the folding position at a farther side with respect to the fixing positions.SELECTED DRAWING: Figure 2

The invention discloses an aluminum foil disc positioning device for a capacitor roll nailing machine, belongs to the technical field of capacitor roll nailing machines, and solves the problem that an existing aluminum foil disc positioning device for the capacitor roll nailing machine is poor in limiting effect on an aluminum foil disc. Through the round frame, a hydraulic rod, a first rack, a first gear, a rotating rod, a disc, a channel, a sliding block, a connecting column, a long connecting plate, a sliding groove, a sliding rod, an opening and a limiting plate, the hydraulic rod fixed to the inner wall of the round frame is started to drive the first rack to move, and the first rack and the first gear drive the disc on the surface of the rotating rod to rotate; sliding blocks in four sets of arc-shaped channels formed in the surface of a disc at equal intervals slide outwards from the ends, close to a rotating rod, of the channels to the ends, away from the rotating rod, of the channels, so that the sliding blocks drive sliding rods to slide outwards in sliding grooves formed in the surface of a long connecting plate, and the sliding rods drive limiting plates to move outwards out of an opening. Accurate positioning and pressing of the disc body are achieved, the problem of deviation or dislocation is avoided, and the positioning accuracy is improved.

The invention relates to the technical field of film winding equipment, in particular to a winding device of a metallized film capacitor, which comprises a rack and a winding roller rotationally mounted in the rack, and a winding control mechanism is arranged in the rack and used for controlling the sample injection direction of a film relative to a film roll when the film is wound; a tension roller is arranged in the machine frame, and an adjusting mechanism is arranged between the tension roller and the winding control mechanism and used for controlling the position of the tension roller. The tension roller and the winding control mechanism are arranged on the rack, so that the position of the guide roller is automatically adjusted when the thickness of a film roll is increased, a to-be-wound film and the film roll are always in a tangent state, the influence of tension can be effectively reduced, the tensile deformation of the film is reduced, and the production efficiency is improved. The size stability is improved; and the winding compactness uniformity of the film is improved.

The invention discloses a workshop field round element metallized film winding tension device and method, and the device comprises a base, a back frame assembly fixedly connected to the top of the base, a winding roller movably connected to the front surface of the back frame assembly through a bearing, a transmission assembly fixedly connected to the front side of the top of the base, and an electric control assembly fixedly connected to the right side of the back frame assembly. The left side of the back frame assembly is fixedly connected with a tension adjusting mechanism, the tension adjusting mechanism comprises a machine base, the top of the machine base is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a screw block, and the front face and the back face of the screw block are fixedly connected with first special-shaped plates. According to the winding tension device, the phenomenon that the tension cannot be changed according to the lack of workshop site'calibration 'or'calibration' in the prior art is changed, the convex rod is adopted to drive the winding roller to be adjusted upwards, the tension needed by metallized films with different production requirements can be adapted, and the machining quality of the metallized films cannot be affected.

The utility model discloses a winding machine with good stability for capacitor processing, which relates to the technical field of winding machines and comprises a support frame, a first feeding shaft, a transmission shaft, a heating piece and an air drying piece, and the first feeding shaft, the transmission shaft, the heating piece and the air drying piece are mounted on the surface of the support frame. And a stabilizing piece is installed on the surface of the supporting frame, a second feeding shaft is arranged on the surface of the supporting frame, a cutter is arranged on the surface of the supporting frame, and a damping piece is arranged at the bottom of the supporting frame. Hot air is conveyed through the air heater, air of the air heater is conveyed through the fan cover, the air is blown to a roll film, residual water vapor is evaporated again, dust on the roll film is blown, the quality of the roll film is guaranteed, the upper portion of the roll film is pressed through the pressure sensing block, and the roll film is prevented from being damaged. The lower portion of the rolled film is controlled through the pressing wheels on the fixing columns, the rolled film is conveyed in a limited mode, and displacement of the rolled film in the conveying process is prevented.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. The method may include providing a multi-roll calender system comprising a first calender roll, a second calender roll; rotating the first calendering roll at a first rotational velocity; rotating the second calendering roll at a second rotational velocity; providing a first dry electrode material to a first nip between the first calendering roll and the second calendering roll to form a dry electrode film. The second rotational velocity may be greater than the first rotational velocity.

The invention provides an external automatic deviation rectifying device and capacitor winding equipment, the external automatic deviation rectifying device is used for being arranged on the outer side of a capacitor winding machine, the external automatic deviation rectifying device comprises a rack part and a deviation rectifying part arranged on the rack part, and the deviation rectifying part comprises a driving device, a driving device, a deviation rectifying device and a control device; the driving device is used for being in shaft driving connection with a pole foil discharging disc in the capacitor winding machine; the position detection device is used for detecting offset information of the electrode foil located in the foil guide channel; and the controller is used for controlling the axial movement of the electrode foil discharging disc shaft according to the deviation information so as to correct the position of the electrode foil, so that the existing manual deviation correction type capacitor winding machine has an automatic deviation correction function of the electrode foil, and meanwhile, structural transformation or repurchase of a new capacitor winding machine on the existing manual deviation correction type capacitor is not needed. The improvement cost of the capacitor winding machine is reduced, and the situation that an existing manual correction type capacitor winding machine is idle and wasted is also avoided.

A laminated film which has a resin layer on at least one surface of a resin substrate, and wherein M represents the peak intensity of fragments of positive ions that exhibit the maximum intensity and are detected when the surface of the resin layer is analyzed by time-of-flight secondary ion mass spectrometry, when T is the sum of the peak intensity of the positive ions of the alkali metal element and the peak intensity of the positive ions of the alkaline earth metal element, T / M is 0.001-0.100, and the tape peel strength is 2.0 N / 19 mm or less. Provided is a laminated film that suppresses deterioration in element performance when used as a process film for a constituent member of an electronic component or a battery, such as a laminated ceramic capacitor.

The invention discloses processing equipment for capacitor elements, the processing equipment comprises a rack, a plurality of unwinding rollers, winding rollers and an alignment assembly, the unwinding rollers are rotatably arranged on the vertical side wall of the rack in parallel, and the winding rollers are rotatably arranged on the side wall, provided with the unwinding rollers, of the rack; a driving part used for driving the unwinding roller and the winding roller to rotate is arranged on the rack, the alignment assembly is arranged on the rack and comprises an alignment plate and a guide rod, the alignment plate is vertically arranged on the side, provided with the unwinding roller, of the rack in parallel, and a plurality of first communicating openings are formed in the alignment plate; the multiple first communicating ports and the multiple unwinding rollers are arranged in a one-to-one correspondence mode, the unwinding rollers are slidably connected with the alignment plate through the first communicating ports, and the guide rod is perpendicularly arranged on the side, close to the rack, of the alignment plate. The method has the effect of improving the processing quality and the processing precision of the capacitor element.

To provide a manufacturing method of a wound electrode body, and the like, the manufacturing method being capable of appropriately preventing occurrence of winding deviation of an electrode plate which may occur during a winding step.SOLUTION: A manufacturing method of a wound electrode body 20 includes a winding step S11 of stacking and winding, around a winding core 111, a first separator 31, a negative electrode plate 25, a second separator 35 and a positive electrode plate 21. In the winding step S11, for an electrode plate 21 of at least one of the positive electrode plate 21 and the negative electrode plate 25, a position Px, in a width direction, of the electrode plate 21 during transportation is detected, and, on the basis of the detected position Px in the width direction and an estimated curvature amount Wn of the electrode plate 21, winding is performed while the position Px, in the width direction, of the electrode plate 21 is controlled such that the position Px in the width direction becomes a position Ps in a reference width direction.SELECTED DRAWING: Figure 4

A production apparatus of an electrode active material layer, comprising: a support unit; a feeding unit that feeds prescribed granulated particles on or above the support unit; a first conveying unit; a squeegee unit; a first stock guide; a second stock guide; a first position measurement unit; a second position measurement unit; a rolling unit; a first gap amount adjustment unit; a second gap amount adjustment unit; and a control unit, wherein: the first position measurement unit is capable of measuring a distance D1; the second position measurement unit is capable of measuring a distance D2; the first gap amount adjustment unit adjusting a gap amount G1; and the second gap amount adjustment unit adjusting a gap amount G2. The control unit causes the first gap amount adjustment unit to adjust the gap amount G1 based on a difference between the gap amount G1 obtained based on the distance D1 and a gap amount threshold T1 and causes the second gap amount adjustment unit to adjust the gap amount G2 based on a difference between the gap amount G2 obtained based on the distance D2 and a gap amount threshold T2.

The apparatus (100) for manufacturing the coil (B) comprises a supply unit (2) configured to supply at least one strip-shaped article (N) and a winding unit (1). The supply unit (2) comprises a coupling device (23) configured to couple the strips (N1, N2, N3, N4) of the strip-shaped article (N). The winding unit includes at least one winding head (10). Each winding head (10) is configured to wind the strip-shaped article (N) so as to produce the coil (B) during the displacement executed by the moving device (3) of the winding head (10) along the operating segment (P1) of the working path (P). The coupling device (23) is configured to couple the strips (N1, N2, N3, N4) of the strip-shaped article (N) during each displacement along the operating path between a first position and a second position that are different from each other.

The utility model belongs to the field of capacitor film winding, particularly relates to an automatic film winder for a capacitor, and aims to solve the problem that a film and a metal foil can be laminated through a semi-sphere pair between two rectangular plates in the prior art. However, when the distance between the two rectangular plates needs to be adjusted when the films and the metal foils with different thicknesses are pressed, bolts on the rectangular plates need to be detached, the distance between the two rectangular plates can be adjusted only after the rectangular plates are reinstalled, the operation is troublesome, and the distance between the semi-spheres on the two rectangular plates is inconvenient to adjust. According to the technical scheme, the device comprises a base, the top of the base is fixedly provided with a first support used for containing a thin film roll, a second support used for containing a metal foil roll and a third support, the distance between a second rectangular plate and a first rectangular plate can be adjusted through an adjusting mechanism, bolts do not need to be disassembled for reinstallation, and the cost is reduced. And through the cutting mechanism, the thin film metal foil roll can be cut off.

A power storage element according to one aspect of the present invention comprises a wound-type electrode body having a negative electrode and a positive electrode, and a sealable flat container for accommodating the electrode body. The electrode body has a winding core in the center, the compressive strength of the material constituting the winding core is 55 MPa or more, and the inside of the container is in a state of negative pressure.

The invention discloses an aluminum electrolytic capacitor for automotive electronics and a preparation method of the aluminum electrolytic capacitor. The capacitor comprises a core package formed by winding an anode foil, a cathode foil and electrolytic paper, and an electrolyte impregnated in the core package. The electrolyte comprises a solvent, a solute and an additive, the solvent contains ethylene glycol monoalkyl ether, and the additive contains phosphotungstic acid. The preparation method comprises the steps of riveting, element winding, drying treatment, electrolyte impregnation, packaging, aging and the like, wherein the impregnation rate is controlled to be 1.31-1.51 in the electrolyte impregnation step. Through the optimized electrolyte formula and strict process control, the high-frequency ESR of the capacitor is remarkably reduced, the hydration corrosion of an anode oxide film is effectively inhibited, the high-temperature resistance and the mechanical vibration reliability are improved, and the harsh application requirements in the field of automotive electronics are completely met.

The present application relates to the technical field of capacitor production equipment, and particularly relates to a paper pasting module; the paper pasting module comprises a feeding unit, a traction unit, a cutting unit and a paper pasting unit; the traction unit is arranged downstream of the feeding unit; the traction unit comprises a sliding table driving source, a linear sliding table and a chuck; the chuck is arranged on the linear sliding table; the sliding table driving source drives the linear sliding table to move back and forth; the chuck is used for clamping the end of the diaphragm material belt supplied from the feeding unit; the cutting unit is arranged below the traction unit and close to the feeding unit; the cutting unit is used for cutting the diaphragm material belt pulled to the position by the traction unit, so as to obtain a single diaphragm paper; the paper pasting unit is arranged below the traction unit; the paper pasting unit is arranged between the cutting unit and the chuck; the paper pasting unit pastes the single diaphragm to a target workpiece; the cutting, clamping and pasting processes are continuously connected without idle stroke; the paper pasting does not need secondary transfer; the pasting precision is stable and reliable; and the technical problem of low efficiency of the existing equipment is effectively solved.

This winding machine (30) is provided with a negative electrode material supply device (31), an outer separator supply device (33), and a winding device (35). The negative electrode material supply device (31) has: a first accommodation part (31b) that accommodates a sheet-shaped negative electrode material (1; a second accommodation part (31c) that accommodates the sheet-shaped negative electrode material (1); and a draw-out section (31d). The draw-out section (31d) includes a second draw-out roller (m2) that pulls out the negative electrode material (1) from the second accommodation part (31c) in a state in which the leading end portion (1U) of the negative electrode material (1) accommodated in the second accommodation part (31c) is gripped.

A production apparatus of an electrode active material layer, comprising: a support unit; a feeding unit that feeds prescribed granulated particles on or above the support unit; a first conveying unit; a squeegee device; and a rolling unit, wherein: the squeegee device includes at least one cylindrical squeegee roll, two or more stock guides that are in a plate shape and have a shaft hole, a rotation shaft that is inserted into the stock guide and that penetrates the at least one squeegee roll in an axial direction of the squeegee roll, and a fixing member that restricts movement of the stock guides in an axial direction of the rotation shaft; the stock guides and the at least one squeegee roll are alternately disposed along the axial direction of the rotation shaft, and the stock guides are disposed at both ends of the at least one squeegee roll in the axial direction one each; the at least one squeegee roll is fixed to the rotation shaft; and the rotation shaft is freely rotatable with respect to the stock guides.

The present invention discloses a winding device for producing film capacitors, comprising a support plate installed in the device housing, a winding device body, a plurality of guide rollers and a plurality of unwinding rollers. When the improved film capacitor winding device is used, a relatively stable negative pressure cavity can be formed inside the limiting roller, thereby applying an adsorption constraint force to part of the material strip on the outer peripheral side of the limiting cylinder, so that the material strip will not slide with the limiting cylinder, thereby avoiding the misalignment of several material strips during stacking, and at the same time, the airflow can continuously apply an axial thrust to the unwinding roller through the impeller to straighten the material strip, and the thrust applied to the unwinding roller can be adjusted by the size of the airflow, so that the device can adapt to the winding operation of material strips of various specifications, the tension applied to the material strip is constant and will not cause the unwinding roller to get stuck, thereby avoiding the situation where the material strip is subjected to excessive tension, resulting in deformation or damage to the material strip.