摘要:
To provide a lithium secondary cell, which is excellent in productivity since a cell structure is simple and easy for assembly. Provided is a lithium secondary cell having: an internal electrode body including a positive electrode plate, a negative electrode plate, the positive electrode plate and the negative electrode plate being wound and laminated around an external periphery wall of a hollow cylindrical winding core, and inside the internal electrode body a nonaqueous electrolyte solution being impregnated, a cylindrical cell case contained in this internal electrode body 1 with both ends being opened, and two electrode caps sealing the above described internal electrode body 1 at both the open ends of this cell case. The electrode cap has a plate member sealing the internal electrode body and disposed so as to seal both the open ends of the above described cell case, an external terminal member protruding onto the surface of the electrode caps to lead out currents to outside, and an internal terminal member brought into connection with the internal electrode body and taking out currents from the internal electrode body, and an elastic body and at least two of the above described plate member, the external terminal member and the internal terminal member are joined together for construction. Furthermore, there is also provided an assembly of lithium secondary cells.
摘要:
A multi-directional operating switch is disclosed, comprising a housing having a bottomed receptacle portion, a central fixed contact portion disposed on an inner bottom surface of the receptacle portion, peripheral fixed contact portions disposed on a peripheral surface with respect to the central fixed contact portion, a plurality of movable contacts disposed respectively in opposition to the central and peripheral fixed contact portions, and a step for depressing the plural movable contacts selectively to switch over from one contact to another, wherein the movable contacts are disposed within the receptacle portion of the housing in such a manner that in the depressing direction of the stem the movable contact disposed in opposition to the central fixed contact portion and the movable contacts disposed in opposition to the peripheral fixed contact portions are spaced a predetermined distance from each other, while in a direction perpendicular to the stem depressing direction they partially overlap each other in their external forms.
摘要:
An apparatus for sensing low concentration NOx in the atmosphere is disclosed. The apparatus has sensor elements arranged in a flow path of the atmosphere, the resistance of each of said sensor elements varying in response to changes in NOx concentration of the atmosphere; a catalyst arranged between said sensor elements to maintain partial pressures of NO and NO.sub.2 in the atmosphere at an equilibrium state; and measuring means for receiving signals from said sensor elements, one sensor element being contacted with the atmosphere which is not passed through said catalyst and the other sensor element being contacted with the atmosphere which is passed through said catalyst and for determining the concentrations of NO.sub.2 and NO in the atmosphere on the basis of said signals.
摘要:
A method of measuring a gas concentration for measuring any one of the concentrations of NOx, NO.sub.2, NO, and O.sub.2 by using one or more sensor elements utilizing a metal oxide semiconductor as a sensing element is disclosed. In the method of measuring a gas concentration, any one of the partial pressures of NO.sub.2, NO, and O.sub.2 is calculated on the basis of the following formula (1), and any one of the concentrations of NOx, NO.sub.2, NO, and O.sub.2 is measured on the basis of the calculated partial pressure; ##EQU1## wherein R is resistance and A-H and Q are constant.
摘要:
An anchor device for an optical cable comprises an anchor clamp for anchoring an optical cable, which is extended along power transmission lines stretched between iron towers, to an iron tower associated therewith, and a semiconductive ring having a predetermined volume resistivity and having a rounded external shape. The semiconductive ring is fixed on the outer peripheral surface of the optical cable in contact with an end of a reinforcing rod of the anchor clamp opposite the tower. By attaching the semiconductive ring, it is possible to lessen the intensity of the electric field of the power transmission lines in the vicinity of that end of the anchor clamp. Even in the case where the outer peripheral surface of the optical cable comes to have electrical conductivity with use for a long term, dry band arcing due to the electric field around the outer peripheral surface of the optical cable is reduced or prevented, thereby preventing the optical cable from being deteriorated in electrical insulation performance or being burned.
摘要:
A thin film magnetic head has magnetic films, at least one of which is composed of a material containing major components of nickel and iron and one or more element from nitrogen, oxygen and carbon and has two of face-centered cubic system and body-centered tetragonal system, whereby thin film magnetic heads having a high permeability and low coercive force can be provided.
摘要:
This invention discloses a new semiconductor device having no step type p-i-n juctions but rather has a graded p-i-n juction. The semiconductor device shows a high photoelectric conversion efficiency, and since said device can be produced easily with good reproducibility by a plasma discharge method, it is especially suited for use as a solar battery. An apparatus for the production of said semiconductor device is also disclosed.
摘要:
A thin film magnetic head comprises a lower magnetic member and an upper magnetic film which constitute a magnetic circuit having a magnetic gap at a predetermined location, and a conductor film forming a coil which intersects the magnetic circuit. At least the upper magnetic film has a magnetostriction constant which is not greater than 6.times.10.sup.-7 in the absolute value.
摘要:
A composite membrane that can be used as an electrolyte membrane of a fuel cell is produced from a resin material that contains at least polybenzimidazole and from a composite material that is produced from of hydrogen sulfate and heteropoly acid. The composite membrane has a basic structure of an aromatic hydrocarbon that does not contain fluorine and has good efficiency, even at a low doping level, so it can be used for the electrolyte membrane of a medium temperature dry fuel cell. Phosphoric acid is doped into the composite membrane. Characteristics of the relationship between output current density and output voltage for an electrolyte membrane that is made from the created composite membrane (a specimen 4) are better than for a specimen 8, in which the amount of phosphoric acid doping is equivalent.
摘要:
A food and drink conveying device allows a travel body carrying food and drink to stably travel along a curved path of a travel path while maintaining stability. A travel body (7) includes a travel body main unit (26), and a leading body (27) at the front end of the travel body main unit (26) in the travel direction. The leading body (27) is supported by the travel body main unit (26) so as to be pivotable in a horizontal plane. Contact sections (29) are provided to both sides of the leading body (27) in the widthwise direction relative to the travel direction and aligned on either side in the travel direction. The contact sections (29) provided on the inner side of a curved path portion (10a) are configured to make contact in the curved path (10a) at two locations in a travel path (1a).