摘要:
A current collector sheet for an electrode of an electrochemical device has a conductive area and an insulating area on the surface thereof. Examples of the current collector sheet includes: a current collector sheet including an insulating sheet, wherein the conductive area has a conductive layer formed on the surface of the insulating sheet, and the insulating area has an exposed portion of the insulating sheet; a current collector sheet including a conductive sheet, wherein the insulating area has an insulating layer formed on the surface of the conductive sheet, and the conductive area has an exposed portion of the conductive sheet; and a current collector sheet including a conductive sheet portion and an insulating sheet portion positioned flush with each other, wherein the conductive area has a surface of the conductive sheet portion, and the insulating area has a surface of the insulating sheet portion.
摘要:
Provided is a power supply unit that notifies the third person that the electric apparatus is in the state prohibiting introduction into vehicle and also make the electric apparatus in the state safely introducible into vehicle at the same time.The power supply unit comprises an introduction-detecting button for detecting introduction of an electric apparatus into vehicle previously, a voltage-detecting unit for detecting the voltage of the power source, a memory unit for storing a control-initiating voltage and a control-terminating voltage lower than the control-initiating voltage, and a control unit for determining, when introduction into vehicle is detected previously with an introduction-detecting button, whether the voltage of the power source detected by the voltage-detecting unit is not lower than the control-initiating voltage, supplying power from the power source to the LED if the voltage of the power source is judged not lower than the control-initiating voltage, causing the LED to notify that the electric apparatus is in the state prohibiting introduction into vehicle, and forcibly discharging the power source until the voltage of the power source reaches the control-terminating voltage.
摘要:
The invention provides a current collector sheet for carrying an electrode material mixture for use in an electrode for an electrochemical device characterized in that the current collector sheet has a conductive area and an insulating area on the surface thereof. Examples of the current collector sheet includes: a current collector sheet including an insulating sheet, wherein the conductive area comprises a conductive layer formed on the surface of the insulating sheet, and the insulating area comprises an exposed portion of the insulating sheet; a current collector sheet comprising a conductive sheet, wherein the insulating area comprises an insulating layer formed on the surface of the conductive sheet, and the conductive area comprises an exposed portion of the conductive sheet; and a current collector sheet comprising a conductive sheet portion and an insulating sheet portion positioned flush with each other, wherein the conductive area comprises a surface of the conductive sheet portion, and the insulating area comprises a surface of the insulating sheet portion.
摘要:
The present invention discloses a method for manufacturing an electrode for a battery by filling an active material into a three-dimensional porous metal substrate sheet and cutting said sheet to a certain size, comprising the steps of: pressing the portion to be cut and the periphery thereof in the substrate sheet; coating the portion to be cut and the periphery thereof in the substrate sheet with a resin; and/or impregnating the portion to be cut and the periphery thereof in the substrate sheet with a liquid containing a resin component, in addition to the steps of: filling an active material into the substrate sheet; and cutting the substrate sheet at the portion to be cut. This method prevents the occurrence of burrs and cuttings while the sheet is being cut and the coming off of the active material, thereby suppressing internal short circuit of the battery. As a result, a battery hardly suffering from a deterioration in preservation performance and charge-discharge cycle life can be obtained.
摘要:
A sealed storage battery includes a battery case containing a group of electric power-generating elements each comprising a positive electrode, a negative electrode and a separator, a battery case lid closing an opening in the battery case to seal the battery case, and a safety valve of the assembling type mounted on the battery case lid. The safety valve is welded to the battery case lid. With this construction, a hermetic seal at an area of contact between the safety valve and the battery case lid is enhanced, and also the reliability of the safety valve is enhanced.
摘要:
A battery container for containing battery elements includes large thickness sections formed on the outer rims of walls that compose the container and small thickness areas formed in the areas surrounded by the large thickness sections. A spacer that is formed of straight-line ribs, a combination of latticed ribs and projections, cylindrical projections or the like is disposed on the small thickness areas and the outer surface of the spacing means protruded out of the outer surfaces of the large thickness sections, thereby ensuring the mechanical strength and durability of the container and at the same time allowing cooling air to circulate efficiently along the walls of the battery envelope. This facilitates the transfer of heat produced inside of the battery to the outside.
摘要:
A casing of sealed alkaline storage battery to be stacked in plural number in one direction, each provided with a safety vent; each casing is made of a polymer alloy which mainly comprises polyphenylene ether, polystyrene and an elastomer; at least one outersurface of the casing has a plurality of vertical protrusion ribs thereby to form vertical ventilation spaces through which a cooling medium passes; the vertical ribs formed on an outer surface of the casing have a protrusion height of 1 to 2 mm, the interval between ribs of 7 to 15 mm, rib width of 3 to 10 mm; thickness of inter-rib portion of casing are 1 to 3 mm, and those at the parts of short side walls 2 to 4 mm.
摘要:
A nickel positive electrode for use in alkaline storage batteries which is improved in the rate of utilization of the nickel hydroxide in a wide temperature range with an oxygen evolving overvoltage being increased by incorporating at least one selected from the group consisting of compounds of yttrium, indium, antimony, barium and beryllium, and at least one selected from the group consisting of compounds of cobalt and calcium into the nickel positive electrode (2), and a nickel-hydrogen storage battery using the same.
摘要:
Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.
摘要:
Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the Portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.