104 results about "Polymer capacitor" patented technology

A polymer gel electrolyte includes an electrolyte solution composed of a plasticizer with at least two carbonate structures on the molecule and an electrolyte salt, in combination with a matrix polymer. Secondary batteries made with the polymer gel electrolyte can operate at a high capacitance and a high current, have a broad service temperature range and a high level of safety, and are thus particularly well-suited for use in such applications as lithium secondary cells and lithium ion secondary cells. Electrical double-layer capacitors made with the polymer gel electrolyte have a high output voltage, a large output current, a broad service temperature range and excellent safety.

A capacitor embedded printed circuit board (PCB), the PCB including: a multilayer polymer capacitor layer where a plurality of polymer sheets is laminated; one or more first inner electrodes and second inner electrodes, separated by one or more of the plurality of polymer sheets and alternately disposed to form a pair; a plurality of first extended electrodes and second extended electrodes connected to the first inner electrodes and second inner electrodes, respectively; one or more insulating layers laminated on one or both surfaces of the multilayer polymer capacitor, where a plurality of conductive patterns and conductive via holes, forming an interlayer circuit are formed; a plurality of first via holes for capacitor, penetrating the multilayer polymer capacitor layer to be connected to the first extended electrodes; and a plurality of second via holes for capacitor, penetrating the multilayer polymer capacitor layer to be connected to the second extended electrodes, wherein the plurality of the first and second extended electrodes are alternately disposed to be opposite to each other.

Examples of the present invention relate generally to high electric energy density polymer film capacitors with high charge-discharge efficiency and fast discharge speed. For example, a high energy density polymer capacitor may be fabricated using a polymer blend comprising one or more high dielectric constant PVDF-based polymers (including homopolymers, copolymers and/or terpolymers) and one or more other polymer with low dielectric loss and high volume resistivity compared to the one or more PVDF-based polymers. An example film capacitor may comprise a high temperature fluoropolymer with dielectric loss lower than 0.2% and good film manufacturability. Polymer films can be stretched and orientated at least in one direction to make thinner films with improved performance. Film capacitors can be made by winding metallized films, plain films with metal foils, or using a hybrid construction where the dielectric films comprise the new compositions. Capacitors can also have a multilayer construction where the films are metallized.

An oblong electrochemical double-layer capacitor is disclosed having a modified jelly roll design and having a plurality of fingers extending from each electrode in substantially the same direction. A packaged electrochemical double-layer capacitor is also disclosed comprising the oblong electrochemical double-layer capacitor having a modified jelly roll design. A method for manufacturing an oblong electrochemical double-layer capacitor having a modified jelly roll design is also disclosed.

Disclosed is a printed circuit board which is advantageous in terms of high capacitance by embedding capacitors comprising polymer capacitor pastes with high-dielectric constant coated on an inner layer of the printed circuit board and then semi-dried to a state of B-stage.

The invention relates to a preparation method for conductive polymer modification activated carbon electrode materials in a super capacitor, which comprises the following steps: conductive polymer monomers are added into ionic liquid to obtain A solution with the monomer concentration of 0.01-0.5mol/L; the A solution is added into an electrolytic cell deployed with three electrodes; ampere density of 1-10 mA /cm2 is applied to an activated carbon electrode; the electrochemical polymerization is carried out under the protection of nitrogen; after the polymerization is finished, a layer of even conduction polymer film can be obtained on an activated carbon working electrode. The preparation method has the beneficial effects that by using conductive polymer modification activated carbon electrodes, the double layer capacitance of the activated carbon not only can be used, but also the pseudo-capacitance of the conductive polymers can be used for increasing the specific capacitance of the capacitor; compared with a pure activated carbon electrode, the specific capacitance is increased by 2-3 times; and the electrode has high conductivity, fast charge and discharge capability and better circulation stability.

The present invention is a capacitor of a triphenyl phosphine oxide film as a base dielectric. More specifically, the base dielectric film is selected from the group consisting of Bisphenol-A (Bis-A PEPO). 4',4'-biphenol (BP-PEPO), and Hydroquinone (HQ-PEPO). TPPO based polymers have a very high breakdown strength, dielectric constant, low dissipation factor and high energy density. An ultra-thin coating can leverage the capabilities of this new dielectric, and potentially other commercial polymer films, to make possible energy storage in excess of 1 J/cc. The triphenyl phosphine oxide film can be fabricated containing a conducting PolyANiline (PAN) polymer layer located between the electrode and core polymer, or by being dip coated with PAN.

Provided is an electric double-layer capacitor. The electric double-layer capacitor comprises an electrode portion composed of an anode and a cathode; a separator for providing electrical isolation between the anode and cathode; and an electrolyte solution which is filled in a space between the anode and cathode so as to form electric double-layers on surfaces of the anode and cathode upon application of a predetermined voltage, and in which a solvent and a solute are mixed so as to have a concentration of 1.25 to 2.5 mol/L.

An improved charge or energy storage device having a dielectric charge or energy storage layer including:

• • (i) a copolymer or terpolymer selected from P(VDF-CTFE), P(VDF-CFE), P(VDF-HFP), P(VDF-CDFE), P(VDF-TrFE-CTFE), P(VDF-TrFE-CFE), P(VDF-TrFE-HFP), P(VDF-TrFE-CDFE), P(VDF-TFE-CTFE), P(VDF-TFE-CFE), P(VDF-TFE-HFP), and P(VDF-TFE-CDFE); or
  • (ii) a polymer blend of PVDF homopolymer with a copolymer selected from P(VDF-CTFE); P(VDF-CFE); P(VDF-HFP); and P(VDF-CDFE); or
  • (iii) a polymer blend of a PVDF homopolymer with a terpolymer selected from P(VDF-TrFE-CTFE); P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); and P(VDF-TFE-CDFE); or
  • (iv) a polymer blend of copolymer selected from P(VDF-CTFE); P(VDF-CFE); P(VDF-HFP); and P(VDF-CDFE); with a terpolymer selected from P(VDF-TrFE-CTFE); P(VDF-TrFE-CFE); P(VDF-TrFE-HFP); P(VDF-TrFE-CDFE); P(VDF-TFE-CTFE); P(VDF-TFE-CFE); P(VDF-TFE-HFP); and P(VDF-TFE-CDFE).

A cylindrical electric double-layer capacitor includes an electrode winding which is formed by superposing band-shaped positive and negative electrodes one on another with a first separator interposed therebetween, superposing a second separator onto one of the band-shaped positive and negative electrodes to provide a superposed material, and by spirally winding the superposed material such that the second separator is located on an outermost side, and a container having the electrode winding accommodated therein. A cylindrical electrode is provided on an inner peripheral surface of the container opposed to an outer peripheral surface of the electrode winding. The polarity of the cylindrical electrode is set at a polarity opposite from the polarity of that portion of the band-shaped negative electrode, which is located on an outermost periphery of the electrode winding.

Disclosed herein is a printed circuit board including embedded capacitors, composed of a polymer condenser laminate including a plurality of polymer condenser layers, each of which has a polymer sheet and a conductor pattern formed on the polymer sheet, and a via hole for interlayer connection therethrough, and a circuit layer formed on either surface or both surfaces of the polymer condenser laminate and having a circuit pattern and a via hole for interlayer connection therethrough. The printed circuit board of the current invention has higher capacitance density per unit area than conventional embedded capacitor printed circuit boards, whereby capacitors having various capacitance values, such as multilayered ceramic capacitors having high capacitance, can be embedded in the printed circuit board, instead of being mounted thereon. Also, a method of manufacturing the printed circuit board including embedded capacitors is provided.

In an electric double-layer capacitor, resistance of a polarizable electrode layer is reduced and gas generation inside a case is suppressed in an attempt to improve reliability. On that account, an electric double-layer capacitor is provided, which is obtained by housing in a case, together with a driving electrolyte, a capacitor element wound with a separator interposed between electrodes being paired anode and cathode electrodes in each of which polarizable electrode layers are formed on and lead wires are fixed to both sides of a current collector made of metallic foil, such that the polarizable electrode layers are opposed to each other. Further, an electric double-layer capacitor is provided in which the lead wire is fixed to a polarizable-electrode-layer-removed section on the electrode where the polarizable electrode layer has been removed, and an area of the polarizable-electrode-layer-removed section is not smaller than 1 and not larger than 2.0 when a project area of a portion where the lead wire is connected with the current collector is set to 1.

The present invention provides a wound electric double-layer capacitor having less-deteriorating characteristics and a high reliability realized by preventing the electro-chemical reaction on the polarizable electrode layer surface. The wound eclectic double-layer capacitor comprises a capacitor element fabricated by exposing a part of the polarizable electrode layers formed on both sides of the current collector, connecting anode and cathode lead wires to the exposed part, interposed a separator between the anode and the cathode, and winding them, a metal case containing the capacitor element and a driving electrolyte, and a sealing member sealing the opening of the metal case. At least one turn of the cathode from the end of the wound anode is further wound. Thereby, at the outside periphery the capacitor element has a part where the polarizable electrode layer formed on the cathode is opposed to itself with the separator interposed between them.

The invention discloses an MEMES technology-based three-dimensional structure microelectrode applied to a mini-super capacitor and a manufacturing method thereof. In the three-dimensional structure microelectrode, a nickel microcolumn array is vertically arranged on one side face of a nickel substrate and a functional thin film is coated on the surface of the nickel microcolumn. The manufacturing method for the three-dimensional structure microelectrode comprises steps of coating a layer of epoxy group negative chemically amplified SU-8 glue film on the surface of the nickel substrate and performing photolithography; and preparing the nickel microcolumn array, and performing functional thin film electro-deposition treatment. The area of the microelectrode can be effectively increased and the electrical properties of the functional thin film are improved, so that the charge storage ability of the microelectrode is improved and the impedance of the microelectrode is reduced. The microelectrode-based mini-super capacitor is widely applied in the fields, such as a sensor network node power supply, a fuze power supply and the like.

The invention relates to a conducting polymer modified super capacitor and a manufacturing method thereof, belonging to the technical field of super capacitors. In the invention, a plurality of micro capacitors are integrated in one single silicon substrate by using the MEMS (Micro Electro Mechanical Systems) technology, and the multiple micro capacitors are connected in parallel (or connected first in series and then in parallel) to form the super capacitor. Each micro capacitor comprises a pair of micro grooves, one isolation column is arranged between two micro grooves, and the height of the isolation column is smaller than the depth of the micro grooves; a metal electrode layer and a conducting polymer film are deposited on the groove walls of the micro grooves; and the micro grooves are filled with an electrolyte and then encapsulated. During the manufacturing process of the micro capacitor, the simple and effective conducting polymer film is directly and chemically polymerized on the metal electrode layer to modify capacitor electrodes, so that the specific capacity of micro electrodes is increased and the equivalent series resistance is reduced. The conducting polymer modified super capacitor provided by the invention has the characteristics of large specific capacity and high integration level and can be used as various power or energy storage devices.

The invention discloses a columnar capacitor formed between different metal layers in the technique for preparing through-holes and wiring. The columnar capacitor comprises a dielectric layer, wherein, a central through-hole and at least one cylindrical through-hole coaxial with the central through-hole are formed in the dielectric layer; the central through-hole and the cylindrical through holesare filled with metal respectively, so as to form metal areas respectively, wherein, the adjacent metal areas are not communicated with each other. The invention further discloses a stacking-type coaxial columnar capacitor and a method for preparing the capacitors. The capacitors of the invention have the following advantages: 1, the preparation of the capacitors are formed in the process of preparing metal wiring, so that the technique is simple and the cost is low; and 2, the capacitors are free from the design dimensionality in the height direction through coaxial stacking preparation, so that the capacitors can be prepared flexibly according to the spatial requirements for circuit components, and according to component simulation, the capacitance of a stacking-type capacitor with the height of 4 mu m is equivalent to that of a plate capacitor, being about 1fF/mu m<2>.

The present invention belongs to the technical field of coaxial line super capacitors and particularly relates to a coaxial line super capacitor with shape memory performance and a preparation method thereof. According to the super capacitor, a shape memory polymer fiber wrapped by an aligned carbon nanotube film is used as the inner electrode of the super capacitor, and the surface of the inner electrode is an H3PO4-PVA gel electrolyte layer. The electrolyte layer is wrapped by an aligned carbon nanotube film as an outer electrode. The surface of the outer electrode is provided with a layer of H3PO4-PVA gel electrolyte layer. According to the coaxial line super capacitor, by using the polymer fiber with a shape memory function, the coaxial line super capacitor with the shape memory performance is prepared. The specific capacitance of the supercapacitor reaches 24Fg-1, and the super capacitor can be shaped into different curvatures and different lengths and can return to an original shape when the super capacitor reaches a transition temperature. According to the coaxial line super capacitor with shape memory performance, a new way of thinking is provided for the preparation of other multi-functional electronic devices and wearable energy devices.

The invention relates to one power element, which is to reduce temperature lift of metal safe film capacitor electrode structure and comprises upper and down compound layers, wherein, each layer has two different electrode structures with its half as metal electrode coating layer and other half coated with safe film; the compound layers are symmetric covered with tight layers; the continuous metal electrode coating layers are processed into thick one connected with outer spray metal.