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461results about How to "High industrial value" patented technology

Photo-electric conversion cell and array, and photo-electric generation system

A photo-electric conversion array is formed by connecting photo-electric conversion cells in series. Each photo-electric conversion cell includes: a substrate, at least one main surface of which is made of a conductor layer; plural crystalline semiconductor particles provided on the conductor surface of the substrate; an insulation layer filled in clearances among the crystalline semiconductor particles; a transparent electric conducting layer provided above the plural crystalline semiconductor particles; a collector electrode, formed on the transparent electric conducting layer, to collect electricity from the transparent electric conducting layer. The substrate is provided with a substrate electrode portion at one end portion, through which the conductor surface of the substrate is exposed, and a connection electrode is formed by extending the collector electrode, so that the connection electrode in a given photo-electric conversion cell is connected to the substrate electrode portion in another photo-electric conversion cell. It is thus possible to provide a photo-electric conversion array capable of maintaining the reliability as to the adhesion strength, with a good outward appearance as well as excellent reliability and power generation efficiency.
Owner:KYOCERA CORP

Nickel composite hydroxide and process for producing same, positive active material for nonaqueous-electrolyte secondary battery and process for producing same, and nonaqueous-electrolyte secondary battery

To provide a positive active material which has a moderate particle diameter and has high evenness in particle diameter and a nickel composite hydroxide which is for use as a precursor for the positive active material. When a nickel composite hydroxide is obtained through a crystallization reaction, an aqueous solution for nucleation which contains both a metal compound at least containing nickel and an ammonium ion source is used to conduct nucleation after having been regulated so as to have a pH of 12.0-14.0 at a solution temperature of 25 degree centigrade, and thereafter the resultant aqueous solution, which is for particle growth and which contains formed nuclei, is regulated so as to have a pH that, at a solution temperature of 25 degree centigrade, is 10.5-12.0 and lower than in the nucleation step, thereby growing the particles. This particle growth is conducted in a non-oxidizing atmosphere having an oxygen concentration of 1 vol.% or lower, over a period which ranges from initiation of the particle growth step and which accounts for more than 40% of the whole period of the particle growth step. Furthermore, the stirring power per unit volume in at least the nucleation step is regulated to 0.5-4 kW / m3.
Owner:SUMITOMO METAL MINING CO LTD

Black coating film and production method therefor, black light shading plate, and diaphragm, diaphragm device for light intensity adjustment, shutter using the same, and heat resistant light shading tape

A heat resistant black coating film which is capable of making the surface of optical members to be low reflection property and black property, a black light shading plate having a resin film using the same as a base substrate, and a diaphragm, a diaphragm device for light intensity adjustment and a shutter using the same, and heat resistant light shading tape.
They are provided by a black coating film (A), where a titanium oxide film containing titanium and oxygen as main components, and having an oxygen content of from 0.7 to 1.4, as atomicity ratio O/Ti, is formed on an opaque or translucent substrate, characterized in that the titanium oxide film takes a constitution of fine columnar crystals assembled, where the longitudinal direction of the crystal extends in a film thickness direction, has protrusions at the film surface, and has a film thickness of equal to or thicker than 50 nm; and a black light shading plate, wherein the metallic light shading film (B), having a film thickness of equal to or thicker than 40 nm, is formed onto at least one surface of the substrate, and still more the black coating film (A) is laminated and formed on the surface of the metallic light shading film (B), or the like.
Owner:SUMITOMO METAL MINING CO LTD

Preparation method of high-efficiency negative active material for lithium ion secondary battery

The invention relates to a preparation method of a high-efficiency negative active material for a lithium ion secondary battery. Lithium-silicon alloys Li4.4Si, Li3.25Si and Li1.71Si are prepared by high-energy ball milling. The preparation method is simple, pollution-free and high in safety. At the same time, a suitable solvent is added in the high-energy ball milling to serve as a lubricant, thereby greatly improving the efficiency of an alloying reaction. A composite material is prepared from a lithium-silicon alloy together with pre-ball-milling silicon powder, graphite and carbon has a unique structure, which inhibits the volume expansion of materials during charging and discharging. Moreover, LixSi has high capacity and higher conductivity than pure silicon, and contains lithium, which can inhibit the formation of an SEI film in the first week and improve the first week coulombic efficiency of materials. Secondly, the experimental results of the invention show that the synthesized LixSi can be transformed into amorphous silicon after lithium removal, thereby effectively alleviating the volume change during charging and discharging, and exhibiting cycle performance far exceeding that of crystalline silicon. The high-efficiency negative active material is environmentally friendly, simple and feasible in preparation method and instrument and equipment, high in safety, and suitable for industrial production.
Owner:NANKAI UNIV
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