84results about How to "Excellent high temperature durability" patented technology

Disclosed are a cathode active material for lithium secondary batteries, a method for preparing the same, and lithium secondary batteries comprising the same. The cathode active material for lithium secondary batteries comprises a lithium metal oxide secondary particle core formed by aggregation of a plurality of lithium metal oxide primary particles; a first shell formed by coating the surface of the secondary particle core with a plurality of barium titanate particles and a plurality of metal oxide particles; and a second shell formed by coating the surface of the first shell with a plurality of olivine-type lithium iron phosphate oxide particles and a plurality of conductive material particles. The cathode active material for lithium secondary batteries allows manufacture of lithium secondary batteries having excellent thermal stability, high-temperature durability and overcharge safety.

A capacitor-type power supply unit including:

• • a positive bus to which a plurality of capacitor is connected in parallel at each positive-electrode terminal thereof with maintaining equal intervals therebetween, and extends in a parallel direction; and an negative bus to which the plurality of capacitor is connected in parallel, at each negative-electrode terminal thereof with maintaining equal intervals therebetween, and extends in the parallel direction, in which the positive bus has a positive-electrode-side external connection part that is set at a position (SD) separated from the positive-electrode first end by a range of 20% to 30% of the total length in the longitudinal direction thereof, and the negative bus has an negative-electrode-side external connection part that is set at a position (SD) separated from the negative-electrode second end by a range of 20% to 30% of the total length in the longitudinal direction thereof.

The present invention provides a grease composition or a lubricating oil composition which is capable of effectively preventing hydrogen brittleness-caused peeling from occurring on a rolling surface of a rolling bearing, is excellent in durability in a high temperature and speed operation, and can be used for a long time. A grease-packed bearing (1) has an inner ring (2), an outer ring (3), and a plurality of rolling elements (4). A sealing member (6) for sealing a grease composition (7) is provided at openings (8a) and (8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) includes a base grease composed of a base oil and a thickener and an additive added to the base grease. The additive contains at least one compound selected from among plant-derived polyphenolic compounds and compounds formed by decomposition thereof. The above-described compounds include tannin, gallic acid, ellagic acid, chlorogenic acid, caffeic acid, curcumin, quercetin, and quinic acid.

Disclosed is a process for producing a polarizing plate which is transparent, has resistance against high temperatures and high humidity, and is significantly improved in brittleness. Specifically disclosed is a process for producing a polarizing plate comprising two polarizing plate protective films and a polarizer intercalated between the polarizing plate protective films, which is characterized in that at least one of the two polarizing plate protective films is an acrylic film comprising an acrylic resin (A) and a cellulose ester resin (B) at a ratio of 85:15 to 55:45 by mass, and the acrylic film is drawn in at least one direction at a draw ratio of 10 to 150% inclusive and is subsequently bonded to the polarizer with an aqueous adhesive agent.

In a non-aqueous electrolyte secondary battery using a layered lithium-transition metal composite oxide as a positive electrode active material, elevated-temperature durability, that is, elevated-temperature storage performance is enhanced without degrading battery capacity. The non-aqueous electrolyte secondary battery includes: a positive electrode including, as a positive electrode active material, layered lithium-transition metal composite oxide containing lithium, nickel, and manganese; a negative electrode active material capable of intercalating and deintercalating lithium; and a non-aqueous electrolyte having lithium ion conductivity, and the lithium-transition metal composite oxide contains a group IVA element and a group IIA element of the periodic table.

The invention discloses a low-rhenium high-strength thermal-corrosion-resistant nickel-based single-crystal high-temperature alloy and a manufacturing method thereof. The alloy comprises the followingchemical components of, in percentage by weight, 9.0-12.0% of Cr, 8.0-11.0% of Co, 0.2-1.5% of Mo, 4.5-7.0% of W, 3.5-5.5% of Al, 2.0-4.0% of Ti, 4.5%-6.5% of Ta, 0.1-0.3% of Hf, 1.2-2.0% of Re, andthe balance Ni. The high-temperature endurance performance is superior to that of the PWA1483 alloy, the Re element is low, and good thermal corrosion resistance is achieved; compared with the existing nickel-based single-crystal high-temperature alloy, the content of the Cr element in the alloy component is relatively high, the alloy component has relatively high thermal corrosion resistance; thealloy has good high-temperature endurance performance, the high-temperature performance is superior to that of PWA1483, and the creep time of the 982 DEG C/100 Mpa is larger than or equal to 5000h.

The invention discloses a preparing method of a thermoplastic resin matrix carbon fiber-titanium/titanium alloy laminate plate, and belongs to the field of light composite materials. The technical purpose is to solve the problem that currently the interface glue joint effect of titanium alloy of carbon fiber reinforcement titanium alloy laminate plate TiGr and a prepreg is poor. The thermoplastic resin comprises three kinds of high-performance thermoplastic resin including polyether-ether-ketone (PEEK), polyphenylene sulfide (PPS) and polyetherimid (PEI), with the coordination of a film laminating method and a powder impregnation method, the problem that the impregnation effect of the thermoplastic resin on carbon fiber is poor is solved.

Nitrogen oxides contained in an exhaust gas emitted from a lean-burn engine-mounted internal combustion engines are eliminated with a high efficiency.

In an exhaust gas purification apparatus and process for eliminating nitrogen oxides contained in a combustion exhaust gas emitted from an internal combustion engine with a reducing gas such as carbon monoxide, hydrocarbons, etc. contained in the exhaust gas in the presence of a catalyst, a catalyst comprising all of Rh, Pt and Pd, at least one member selected from alkali metals and alkaline earth metals, and Mn or its compound, supported on a porous carrier is used.

The invention discloses a direct-pasting film which comprises a polyethylene glycol terephthalate (PET) substrate, wherein a composite coating layer is arranged on the PET substrate. The composite coating layer is a three-layer composite structure and sequentially comprises a first reflecting-resisting layer, a transition layer, a first near-infrared reflecting layer, a second near-infrared reflecting layer, a transition layer, a second reflecting-resisting layer, a transition layer, a third near-infrared reflecting layer, a fourth near-reflecting layer, a transition layer, a third reflecting-resisting layer, a protective layer and a neon absorbing adhesive layer from inside to outside, and a release film is arranged on the composite coating layer. The direct-pasting film can effectively block near-infrared and orange light and has good high temperature resisting performance and durability.

Disclosed is an exhaust gas purifying catalyst, including Rh/Y—ZrO₂ particles obtained by supporting Rh on zirconia support particles which contain yttria, wherein yttria is contained in an amount of 2˜9 mol % in the support particles. The exhaust gas purifying catalyst exhibits a superior high-temperature durability because the zirconia support can resist heat, thereby particularly increasing the structure retaining power and the thermal stability of Rh.

The invention relates to a modified sialon fluorescence powder particle and a preparation method thereof as well as a sialon fluorophor and luminescent devices. The structure of the modified sialon fluorescence powder particle is a nucleus-shell structure; a nuclear structure of the modified sialon fluorescence powder particle is successively divided into a crystal nucleus layer, a transition layer and an extranuclear layer from the particle core to the external surface according to the progressive increase of the content of oxygen; a main body of the crystal nucleus layer is a nitrogen oxide material; a main body of the transition layer is a nitrogen oxide material; the main body of the extranuclear layer is an oxide material or an oxynitride material. The modified sialon fluorescence powder particle and the sialon fluorophor have the advantages of high chemical stability, high ageing light attenuation resistance and high luminescent efficiency, and are applicable to various luminescent devices. The preparation method is simple, convenient and reliable, is capable of improving chemical and physical stability of the modified sialon fluorescence powder particle and the sialon fluorophor, and is suitable for industrial mass production.

An object of the present invention is to provide a conductive coating film formed of a copper paste on an insulating substrate which has a good conductivity and a good adhesion property to the insulating substrate. The process for producing a conductive coating film according to the present invention comprising the steps of applying a copper paste comprising copper particles, a binder resin and a solvent as main components onto an insulating substrate to form a coating film on the substrate, and then drying the coating film to obtain a copper powder-containing coating film; treating the copper powder-containing coating film with an organic acid or an organic acid salt; and subjecting the thus treated copper powder-containing coating film to heat treatment with superheated steam. According to the present invention, it is possible to obtain a conductive coating film having a good conductivity and a good adhesion property to the insulating substrate.

The invention discloses a Be-Mo-RE high-strength heat-resistant aluminium alloy material with C as a modifier, comprising the following components in weight percent: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.0001-0.15% of C, 0.01-1.0% of Zr, 0.001-0.1% of Be, 0.01-1.0% of Mo, 0.05-5% of rare earth element (RE) and the balance of Al. The invention reduces alloy quasi solid phase temperature range by utilizing high quality melt, solid solution and phase diagram theory as guidance and a C element as a high efficiency modifier and preferably selecting formula of host elements of Cu, Mn and RE and solves the problems that hot rack tendency is high in casting process and product strength of products is low at high temperature; through preferably selecting a low cost multielement microalloyed element formula, a high strength heat resistant aluminium alloy material is finally developed.

The invention belongs to the technical field of metal material treatment, and particularly relates to a heat treatment method for improving the high-temperature endurance performance of a deformed aluminum-copper-magnesium-silver alloy. The heat treatment method comprises the steps that S1, the aluminum-copper-magnesium-silver alloy is subjected to solid solution and quenching treatment, and then artificial aging treatment is conducted for 0-1h; and S2, the aluminum-copper-magnesium-silver alloy material treated in the step S1 is subjected to tensile deformation treatment and then subjected to artificial aging treatment for 1-8h, and the deformed aluminum-copper-magnesium-silver alloy with excellent high-temperature endurance performance is obtained. According to the method, the stable formation of the heat-resistant omega phase or the precursor thereof is ensured through short-time artificial aging in advance, so that the heat-resistant omega phase or the precursor thereof can still exist stably after deformation treatment, the mass formation of the heat-resistant omega phase in the subsequent artificial aging process is promoted, and the excellent long-time high-temperature endurance property of the shape-variable alloy is ensured.

The invention discloses a Cr-Lu high-strength heat-resisting aluminum alloy material and a preparation method thereof. The Cr-Lu high-strength heat-resisting aluminum alloy material comprises the following alloy components in percentage by weight: 1.0-10.0% of Cu, 0.05-1.5% of Mn, 0.01-0.5% of Cd, 0.01-0.5% of Ti, 0.01-0.2% of B, 0.01-1.0% of Zr, 0.01-1.0% of Cr, 0.05-5% of Lu and balance of Al. Based on high quality fusant and solid solution and the phase diagram theory, the invention optimizes the major alloying element formula (Cu, Mn and Lu) to reduce the quasi solid-phase temperature range of the alloy, thereby solving the problems of high thermal cracking possibility in the casing process, low high-temperature strength of the product and the like; the invention optimizes the low-cost composite microalloying element formula, thereby creating physical and basic conditions for the cultivation and grain refining effect of the high-temperature phase and the strengthening phase in the solid solution; and the invention optimizes smelting and heat treatment technologies to ultimately develop a novel aluminum alloy material.