Abstract: A cell comprising an electrode body having positive and negative electrodes which are spirally wound with interposing a separator therebetween and a cell case in which the electrode body is inserted, wherein a pair of the negative electrodes face respective surfaces of the positive electrode through the separator, and the negative electrodes are in contact with each other substantially in the second and subsequent turns, or wherein the negative electrode comprises a metal substrate and a pair of layers of electrode active material formed on both surfaces of the substrate, provided that the negative electrode which is present in at least one of the innermost and outermost turns of electrode body carries the layer of the electrode active material only on one side of the substrate, and each layer of the electrode active material of the negative electrode faces the positive electrode through the separator.

Abstract: A nickel-hydrogen stacked battery pack containing at least two element cells each having a positive electrode, a negative electrode, a separator inserted between the positive and negative electrodes and an electrolytic solution, in which the element cells are stacked and contained in a hexahedral case, and an opening of said case is sealed with a sealing plate having a reversible vent, which battery pack has a high capacity.

Abstract: Source and drain regions are formed in first regions of low concentration formed on a surface of a semiconductor surface, and a second region with doping concentration higher than that of the first regions is formed around the first regions. Further in the second region, third regions with doping concentration higher than that of the second region are formed separate from each other. By virtue of this, a rise of the threshold voltage attendant on a decrease of the channel length is canceled out by the third regions and the short channel effect is suppressed. Further, since doping concentration of the first region is low, high carrier mobility can be obtained.

Abstract: A novel ionic conductive polymer electrolyte comprising a cross linked silicon-containing polymer and a salt, which has a large ionic conductivity of at least 1.times.10.sup.-5 S/cm.

Abstract: A cell comprising a negative electrode made of metal lithium or a lithium alloy, a positive electrode which comprises polyaniline and has a main peak around 3.0 V versus a lithium electrode and a sub-peak around 3.6 V versus a lithium electrode with a height ratio of the sub-peak to the main peak being not smaller than 0.25 in a discharge capacity distribution curve in the discharge voltage range between 3.8 V and 2.5 V versus a lithium electrode, and a non-aqueous organic electrolytic solution containing a lithium salt dissolved therein, which has long discharge life, high energy density, good charge-discharge cycle characteristics and improve load characteristics.

Abstract: In a method of charging secondary battery, the charging control is performed when it is detected that the secondary differential value of the detected voltage curve changes from positive value to a negative value at the point C or its near portion.

Abstract: An optical data recording medium provided with a recording layer, the recording medium having excellent durability to light and heat, superior writing sensitivity and a high C/N value, wherein at least one a group of anion selected from a group of hexafluorophosphate ion (PF.sub.6 .sup.-), trifluoromethane sulfonate ion (CF.sub.3 SO.sub.3 .sup.-) or thiocyanate ion (SCN.sup.-) is present as the anion in an indol cyanine dye having a methyne chain present in the recording layer of the optical data recording medium.

Abstract: In a lithium secondary battery having lithium ion electrical conductive electrolyte, a positive electrode and a negative electrode, the negative electrode being formed by a Li-Ga-In alloy.

Abstract: A read-only memory which features a high operation speed and a high degree of integration. A first layer works as ground lines and word lines, and a second layer works as data lines. The word lines and the data lines are arranged linearly to reduce parasitic capacitance and parasitic resistance, and hence to achieve high-speed operation. The invention is adapted where data of large quantities are to be treated, without effecting the rewriting.

Abstract: A photoelectric type displacement detecting apparatus, such as a digital display dial gauge micrometer, with an improved frequency response, comprising optical lattice means, light emitting means for irradiating the optical lattice means with a detecting light, light receiving means for receiving a transmission or reflective light from the optical lattice means, and a detection circuit for generating an output signal indicative of relative movement in the lattice. The frequency characteristic of a phototransistor adapted in the light receiving means depends on the input impedance of a base-grounded transistor to maintain the current supplied to the light emitting means constant and to improve the frequency response in the detection apparatus.

Abstract: This invention relates to lithium compounds composed of a lithium halide and lithium imide. The compounds are high in lithium ionic conductivity and are used as solid electrolytes. Particularly excellent ones of the lithium compounds are those represented by the general formula:yLi.sub.2 NH.(1-y)LiXwhere X represents Cl, Br or I and y denotes the molar fraction of lithium imide ranging from about 0.35 to about 0.98 when X is chlorine, from about 0.25 to about 0.35 when X is bromine or from about 0.33 to about 0.75 when X is iodine.

Abstract: A lithium-ionic-conductive solid electrolyte consisting of lithium iodide and lithium nitride. It has the feature that the lithium ionic conductivity is higher than in prior-art solid electrolytes, and such feature becomes more remarkable when lithium hydroxide is added.