摘要:
A rechargeable lithium battery including a negative electrode made by sintering, on a surface of a conductive metal foil as a current collector, a layer of a mixture of active material particles containing silicon and/or a silicon alloy and a binder, a positive electrode and a nonaqueous electrolyte, characterized in that the nonaqueous electrolyte contains carbon dioxide dissolved therein.
摘要:
Charge-discharge cycle performance is improved in a lithium secondary battery including a negative electrode containing a negative electrode active material having silicon as its main component, provided on a surface of a current collector, a positive electrode containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium transition metal oxide containing Li and Co and having a layered structure, and further containing a group IVA element of the periodic table, such as Zr, Ti, or Tf, and a group IIA element of the periodic table, such as Mg.
摘要:
A method of assembling an air bearing, the air bearing having a guide on a fixed side, and a slider having a pair of opposing members arranged on opposite sides of the guide, the slider being float-supported so as to be able to move relative to the guide, the method having: contacting a first opposing member of the pair of opposing members to the guide; supplying compressed air of a predetermined pressure between the first opposing member and the guide contacting each other, so as to form a temporary gap twice as large as a target bearing gap between the first opposing member and the guide; maintaining contact between the guide and a second opposing member of the pair of opposing members; and supplying compressed air of a predetermined pressure between the first opposing member and the guide as well as the second opposing member and the guide, so as to form respective target bearing gaps between first and second opposing members and the guide, in place of the temporary gap.
摘要:
A waterproof/dustproof structure includes a stationary member defining a liquid reservoir, a movable member being separated by a gap region from the stationary member and moving without touching the stationary member, and a liquid of high viscosity contained in the liquid reservoir for sealing an entrance area to the gap region. With its high viscosity, the liquid can suppress vibration of the movable member when it stops moving.
摘要:
The tip end of the bonding tip is defined between first and second edges. A first inclined surface gets remoter from a first terminal at a position remoter from the first edge. The second inclined surface likewise gets remoter from the first terminal at a position remoter from the second edge. The solder is contoured by first and second contours on the first terminal. The second terminal is located on the solder between the first and second contours. The tip end of the bonding tip is urged against the second terminal. Heat is transferred from the bonding tip to the solder. The melted solder spreads into gaps between the second terminal and the first and second inclined surfaces. The solder is thus prevented from spreading outside the contour of the first terminal. This results in a reliable avoidance of a short circuit between the adjacent first terminals.
摘要:
A lithium secondary battery comprising an electrode in which an active material layer which includes an active material that electrochemically occludes and releases lithium is formed on a current collector, wherein cracks are formed in the active material layer by occlusion and release of lithium ions and thereafter a solid electrolyte is formed in the cracks in the active material layer.
摘要:
An improved magnetic head enables to reduce a crosstalk values without degrading head wear characteristic of the magnetic head when it is used as a pair of magnetic heads in a magnetic head assembly. The magnetic head has a first and second core sections, each containing at least a magnetic core. The first and second core sections forms a magnetic gap between the respective magnetic cores and a head-tape contact surface by being abutted at distal end surface thereof. The first core section has an approximately L-shaped configuration. The first core section has a head-tape contact core part for forming a part of the head-tape contact surface of the magnetic head and a straight core part extending in an opposite direction of the head-tape contact surface from the head-tape contact surface. The second core section has an approximately C-shape configuration to allow a winding to be provided around the second core section. Length of the head-tape contact core part is made longer than a length of the straight core part in a tape running direction.
摘要:
A film feeding apparatus feeds films in cartridges secured to leaders into a film developing section, A film insertion box provided adjacent to the film developing section has a film setting chamber and a film feeding chamber. An inlet slit is formed in the film feeding chamber. Mounted in the film feeding chamber are a first carrier device for feeding the leaders inserted into the slit downwards with the cartridges disposed thereunder, a second carrier device (50) for intermittently feeding the leaders toward a deep area of the film feeding chamber, and a third carrier device for feeding the leaders up into the film setting chamber. In the chamber are provided leader guides for guiding the leaders toward the film developing section, and an infeed device for feeding the leaders into the film developing section.
摘要:
A power transfer device of the type which includes a housing, a first shaft rotatably mounted within the housing to transfer drive torque from a power transmission to a set of rear-wheel drive axles, a second shaft rotatably mounted within the housing in parallel with the first shaft for drive connection to a set of front-wheel drive axles, and a pair of clutch sleeves mounted on the first and second shafts and shiftable between respective positions in which they effect drive connection or disconnection between the first and second shafts. A shift mechanism for the clutch sleeves includes a shift rod arranged in parallel with the first and second shafts and axially movably mounted within the housing, a first shift fork axially slidably mounted on the shift rod and coupled with one of the clutch sleeves, a second shift fork fixedly mounted on the shift rod at a position adjacent the first shift fork and coupled with the other clutch sleeve, and a retainer element fixed to the shift rod at a position where it is spaced in a predetermined distance from the first shift fork when the second shift fork is maintained in engagement with the first shift fork.
摘要:
An X-ray image tube has a vacuum envelope, a photocathode arranged at an input side in the vacuum envelope and having a curved surface open to an output side thereof, and a phosphor screen arranged at an output side in the vacuum envelope and having a surface on which electrons emitted from the photocathode are electrooptically focused. The photocathode consists of a central surface region with a diameter which is 1/2 to 4/5 of the diameter of the photocathode and a peripheral surface region. The central surface region has a profile such that an increment of the meridional curvature radius from the center to a peripheral portion thereof is larger than a constant derived from a linearity between the increment and a distance from the axis of the photocathode. The peripheral surface region has a profile such that an increment of the meridional curvature radius from an inner peripheral portion to an outer peripheral portion is smaller than the constant derived from a linearity between the increment and the distance from the axis of the photocathode.