摘要:
Provided is an electric double layer capacitor capable of simply connecting a current collector to an external electrode at a low cost and ensuring a sealing property of a container. The electric double layer capacitor includes: a container in which an opening of a concave portion is sealed; an electrolytic solution and a pair of electrode active materials which are accommodated inside the container; and a pair of conductive films which is respectively and electrically connected to the pair of electrode active materials and is formed from a bottom surface of the concave portion to a surface of the container through an opening edge.
摘要:
A method of manufacturing an optical element, comprising the steps of: preparing a mold having concave portions for molding a first resin into an optical member having a predetermined shape as well as a plate-like member having through-holes in at least a part thereof and being made of a second resin, and then disposing the plate-like member on the top surface of the mold so that at least one through-hole can face the concave portion of the mold; injecting a liquid precursor of the first resin into the space formed by the concave portion of the mold and the through-hole of the plate-like member so as to come into contact with at least a part of the plate-like member; polymerizing the liquid precursor while maintaining the contacting state of the liquid precursor with the plate-like member; and integratedly removing, from the mold, the plate-like member and the optical member made of the first resin which is the polymer of the liquid precursor, thereby to obtain an optical element.
摘要:
Provided is an electric double layer capacitor capable of simply connecting a current collector to an external electrode at a low cost and ensuring a sealing property of a container. The electric double layer capacitor includes: a container in which an opening of a concave portion is sealed; an electrolytic solution and a pair of electrode active materials which are accommodated inside the container; and a pair of conductive films which is respectively and electrically connected to the pair of electrode active materials and is formed from a bottom surface of the concave portion to a surface of the container through an opening edge.
摘要:
In a method of reflow soldering, a non-aqueous electrolyte secondary battery is discharged to a first discharge voltage different from a second discharge voltage at an inflection point in a discharge curve of the non-aqueous electrolyte secondary battery having an axis of abscissa representing discharge capacity and an axis of ordinate representing discharge voltage. The discharged non-aqueous electrolyte secondary battery is placed on a substrate which is then exposed to a reflow soldering temperature to reflow solder the non-aqueous secondary battery to the substrate. The first discharge voltage is higher than the second discharge voltage to prevent degradation of characteristics of the non-aqueous electrolyte secondary battery resulting from decomposition of the non-aqueous electrolyte due to reaction of the non-aqueous electrolyte with excessive lithium ions in the cathode active material when the non-aqueous electrolyte secondary battery is exposed to the reflow soldering temperature.
摘要:
An alkaline battery comprises a negative electrode having an active material comprised of mercuryless zinc powder containing a gelling agent. In one embodiment, the alkaline battery comprises a current collector having an outermost surface coated with a layer of zinc or a metal having a hydrogen overvoltage higher than that of zinc, and an electrolyte containing one or more compounds selected from the group consisting of an indium compound, lead oxide; a hydroxide of alkaline earth metal and a surfactant having polyethylene oxide. In another embodiment, the negative electrode active material contains one or more species of materials selected from the group consisting of an indium compound, lead oxide, a hydroxide of alkaline earth metal and a surfactant having polyethylene oxide, and a current collector having an outermost surface coated with a layer of zinc or a metal having a hydrogen overvoltage higher than that of zinc. An improved alkaline battery is achieved which does not pose environmental problems, and which corrosion of the zinc powder of the battery is suppressed, and in which a good discharge performance of the battery is maintained.
摘要:
A power source element has a container made of an insulation material. The container has an interior space containing an anode active material, a cathode active material spaced apart from the anode active material, and an electrolyte material. A first current collector is disposed on an inner base surface of the container. A first connecting terminal is disposed on an outer base surface of the container and is electrically connected to the first current collector. A second current collector is connected to the container. A second connecting terminal is disposed on the outer base surface of the container and is electrically connected to the second current collector.
摘要:
A vibrator is formed on a silicon substrate to become a base by the silicon-processing procedure and a thin film of a piezoelectric material is formed on the substrate by a method matching with the silicon-processing procedure. When an ac field of a frequency near the resonance frequency of the transverse vibration of the vibrator is applied to the thin film of the piezoelectric material, the piezoelectric reverse effect excites characteristic vibration in the vibrator. If a rotational motion is generated along the axis of the beam in that state, the Coriolis' force is generated in a direction perpendicular to both the axial direction and the vibration direction of the beam. This force deforms the beam in that direction. Detecting inductive charges produced in another piezoelectric thin film fixed on the vibrator because of the piezoelectric normal effect due to the deformation, the rotational, angular velocity can be obtained.
摘要:
An aqueous solution containing reducing agent such as potassium borohydride or sodium borohydride is added with another solution containing salt of an iron-triads-group element and salt of a rare earth element to conduct reaction to effect reduction to the iron-triads-group metal and the rare earth metal to thereby produce fine powder of rare earth magnet composed of alloy of the iron-triads-group metal and the rare earth metal.
摘要:
Provided is a gasket for an electrochemical cell, which has good sealing performance and is capable of improving productivity of the gasket, and an electrochemical cell. A gasket (4) for an electrochemical cell, which is made of a resin and has an annular shape including an outer wall and an inner wall, includes a plurality of annular salient portions (4a) formed on an inner side surface of the outer wall.
摘要:
Provided is a gasket for an electrochemical cell, which has good sealing performance and is capable of improving productivity of the gasket, and an electrochemical cell. A gasket (4) for an electrochemical cell, which is made of a resin and has an annular shape including an outer wall and an inner wall, includes a plurality of annular salient portions (4a) formed on an inner side surface of the outer wall.