483results about "Capacitor collector combinations" patented technology

The quick recharge energy storage device has a sufficient capacity due to the combination of a micro-battery and at least one micro-supercapacitor connected between two terminals of an integrated circuit. The integrated circuit, powered by the micro-battery, monitors high-speed (less than one second) charge of the micro-supercapacitors from an external energy source. The micro-supercapacitor can be connected in parallel with the micro-battery so as to subsequently recharge the micro-battery during the necessary time. The micro-battery provides a sufficient energy capacity, while the micro-supercapacitors allow high recharging speeds compatible with various applications (smart cards, smart labels, micro-system power supply, etc . . . ). The micro-battery and micro-supercapacitors are preferably formed on the same substrate, either side by side or stacked. Series connection of several micro-supercapacitors provides sufficient voltage for charging the micro-battery.

An energy storage device cell includes: a capacitor cathode including a capacitor cathode collector foil, and a capacitor cathode electrode layer formed on one face of the capacitor cathode collector foil and containing microparticles of activated carbon; a first separator; a common anode including an anode collector foil having a through-hole, and an anode electrode layer formed on one face of the anode collector foil; a second separator; and a battery cathode including a battery cathode collector foil, and a battery cathode electrode layer formed on one face of the battery cathode collector foil and containing particles of a lithium-containing metal compound. The first separator is sandwiched by the capacitor cathode electrode layer and the anode electrode layer. The second separator is sandwiched by the anode collector foil and the battery cathode electrode layer.

A hybrid lead-acid battery/electrochemical capacitor electrical energy storage device. The lead-acid battery and electrochemical capacitor reside in the same case and are electrically connected. Preferably, a hybrid device of the present invention includes at least one non-polarizable positive electrode, at least one non-polarizable negative electrode, and at least one polarizable electric double layer negative electrode. Separators reside between the electrodes and the separators and electrodes are impregnated with an aqueous sulfuric acid electrolyte. A hybrid device of the present invention exhibits high power characteristics.

An anode material for a lithium ion device includes an active material including germanium and boron. The weight percentage of the germanium is between about 45 to 80 weight % of the total weight of the anode material and the weight percentage of the boron is between about 2 to 20 weight % of the total weight of the anode material. The active material may include carbon at a weight percentage of between 0.5 to about 5 weight % of the total weight of the anode material. Additional materials, methods of making and devices are taught.

The invention discloses a composite battery comprising a battery shell, wherein a positive terminal and a negative terminal are arranged on the battery shell; a matrix battery, a super capacitor and a voltage-sharing circuit board are also arranged in the battery shell; the matrix battery, the super capacitor and the voltage-sharing circuit board are in parallel connection and form electric connection; a positive terminal and a negative terminal on the voltage-sharing circuit board are respectively electrically connected with the anode and the cathode of the super capacitor; the anode and the cathode of the matrix battery are correspondingly and electrically connected with the positive terminal and the negative terminal on the battery shell; and the matrix battery can be a lead-acid battery, a lithium ion battery or a nickel-metal hydride battery. The composite battery has the advantages of high energy and power, low temperature resistance, matrix battery protection, long service life, energy recovery, energy saving and emission reduction, and resource saving, and is applied to electric starting systems, electric drive systems, uninterruptable power output, the starting of tractors and the recovery of the brake energy of motor vehicles. The preparation method has the advantages of simple process and low cost and is suitable for preparing the composite battery of industrial production.

Provided is a power storage device having a high discharge capacitance and a light-transmitting property. The power storage device includes a first current collector having a net-like planar shape; a first active material layer over the first current collector; a solid electrolyte layer over the first active material layer; a second active material layer over the solid electrolyte layer; and a second current collector over the second active material layer.

The battery array is provided with a battery stack 5 having a plurality of rectangular battery cells 1 stacked together with intervening separators 2, endplates 3 disposed at the ends of the battery stack 5, and binding bars 4 extending in the battery cell 1 stacking direction and attached to the endplates 3 in a manner that binds both sides of the battery stack 5. The binding bars 4 are configured as plates of given width extending along the battery stack 5 surfaces. The binding bars 4 and separators 2 fit together in a linked configuration that limits their relative movement in the up-and-down direction.

A piezoelectric ultracapacitor is disclosed capable of converting the kinetic energy of ordinary motion into an electrical potential. Multiple piezoelectric ultracapacitors may be configured together to provide an increased output voltage and various materials may advantageously be used. The piezoelectric ultracapacitor of the present invention may be used in various contexts, including power generation, switching and control and memory. An elastomeric piezoelectric ultracapacitor, along with methods of making and operating such a device, is also disclosed. The elastomeric piezoelectric ultracapacitor utilizes the voltage generation capabilities of a piezoelectric ultracapacitor and the generator mode operation of an elastomer actuator, combined and cooperating in novel ways, to provide improved energy generation capabilities.

A gel-type polymer electrolyte, wherein said polymer comprises (A) an ethylene-unsaturated carboxylic acid copolymer or a derivative thereof and (B) a polyalkylene oxide having a hydroxyl group at one terminal thereof or a derivative thereof, which are bonded together by an ester bond. The gel-type polymer electrolyte has a high ionic conductivity, and makes it possible to provides a cell which has excellent charge/discharge characteristics at low temperatures as well as at high temperatures.

A first member 11 and a second member 12 connected to each other are provided. The first member 11 is electrically connected to an electrode. The second member 12 is bonded to a position of the first member 11 remote from the electrode and is constituted by a material of a kind different from that of the first member 11. An overlapped portion 13 is formed at the first member 11 and the second member 12 and the overlapped portion 13 is bonded by cold welding. By the cold welding, the overlapped portion 13 is formed with a plurality of pressure marks 14 in a recess shape. Each cold pressure welded mark 14 is formed with a deformation mark reducing a depth of the cold pressure welded mark of the recess shape before plastic working by plastically working the overlapped portion 13 in a thickness direction thereof.

A liquid column-based normal/shear pressure/force sensing device having an elastic electrolyte-electrode contact with large interfacial capacitance to achieve high sensitivity and resolution with flexible and transparent constructs.

Disclosed is a self-charging super capacitor. The self-charging super capacitor comprises: at least one nanometer friction generator which is capable of converting mechanical energy into electric energy, wherein each nanometer friction generator is provided with two output electrodes which are used for outputting electrical signals; a charging circuit module which is connected to the output electrodes of the at least one nanometer friction generator and is used for adjusting and converting the electrical signals output by the nanometer friction generator; and a super capacitor which is connected to the charging circuit module and is used for receiving the electrical signals output by the charging circuit module and storing same. In the self-charging super capacitor provided in the present invention, a nanometer friction generator acts as a charging power source, and the self-charging of the super capacitor is achieved by converting mechanical energy into electric energy through the nanometer friction generator and outputting electrical signals to the super capacitor for storage after adjusting and converting same through a charging circuit module.

An electrode assembly having a super-capacitor for allowing high current charge/discharge operations and a lithium secondary battery having the same. The electrode assembly includes first and second electrode plates, a separator interposed between the first and second electrode plates; and a super-capacitor. Each plate has an electrode charge collector, an activation material layer formed on at least one surface of the electrode charge collector, and an electrode tap attached to the electrode charge collector.

An energy device having high input-output performance, in particular being excellent in low temperature performance. An energy device characterized by storing and discharging electric energy by both a faradaic reaction mechanism wherein mainly the oxidation state of an active material changes and electric charge transfers inside said active material and a non-faradaic reaction mechanism wherein mainly ions are physically absorbed and desorbed on the surface of an active material and resultantly electric charge is accumulated and discharged. Further, output performance at a low temperature is improved by providing an energy device characterized by storing and discharging electric energy by at least two kinds of reaction mechanisms that show low and high reaction rates respectively in faradaic reaction wherein mainly the oxidation state of an active material changes and electric charge transfers to said active material through an electrode interface. Furthermore, an energy device characterized by storing and discharging electric energy by at least two kinds of reaction mechanisms that show low and high reaction rates respectively in faradaic reaction wherein mainly the oxidation state of an active material changes and electric charge transfers to said active material through an electrode interface.

The present invention provides a photochargeable layered capacitor comprising a layered capacitor unit and a photovoltaic electrode unit. The layered capacitor unit comprises an outer counter-electrode layer, an outer storage material layer, a separator impregnated with an ionic electrolyte, an inner storage material layer and an inner counter-electrode layer in this order. The photo-voltaic electrode unit comprises a transparent substrate, a transparent conductive layer, a semiconductor layer and a charge transfer layer in this order. The charge transfer layer of the photovoltaic electrode unit is in junction with an outer surface of the inner counter-electrode layer of the layered capacitor unit. The inner counter-electrode layer comprises a single metal sheet.

An equalizing method for ultracapacitor cell packs and/or series connected ultracapacitors.

The invention proposes a perovskite solar cell-super capacitor combined energy conversion and storage integrated device and belongs to the energy conversion and storage technical field. The integrated device comprises a transparent electric conduction substrate, an electron transport layer, a perovskite light absorption layer, a dual-function layer, an electrolyte layer and an upper electrode layer of a super capacitor which are arranged sequentially from bottom to top, wherein the dual-function layer is simultaneously adopted as a hole transport layer of a perovskite solar cell and a lower electrode layer of the super capacitor. According to the perovskite solar cell-super capacitor combined energy conversion and storage integrated device of the invention, the perovskite solar cell and the super capacitor can be combined through the material of the dual-function layer which can be either adopted as the material of the hole transport layer of the perovskite solar cell or the electrode material of the lower electrode of the super capacitor, and therefore, an energy conversion function and a storage function can be realized, and the thickness of the device can be decreased, and a preparation process can be simplified, and cost can be reduced, and the realization of miniaturized electronic equipment can be benefitted.

A power circuit in a battery powered portable communication terminal, having a battery and a transmission power amplifier for TDMA (Time Division Multiple Access) or TDD (Time Division Duplex) signals includes a power accumulator, a battery output current limiter, and a control circuit to control the current limiter and to connect the power accumulator to the battery and to the transmission power amplifier depending on whether the transmission power amplifier is transmitting a signal burst. The control circuit controls the battery to charge the power accumulator during a non-burst period. During burst periods, when the transmission power amplifier requires higher power, the control circuit connects the power accumulator to the transmission power amplifier, to supplement the current-limited current provided by the battery and provide a total current to the power amplifier that is higher than the battery output current.