摘要:
Stable supply of a cathode material for a lithium secondary battery that exels in sinterbility and composition stability and can exhibit satisfactory battery performance is accomplished by reducing to 100 ppm or less both the contents of Na and S being impurity elements in multiple oxides as materials for a cathode material for a lithium secondary battery and carbonic salts as precursor materials for the production of a cathode material for a lithium secondary battery.
摘要:
A positive plate material for lithium secondary cells stably exhibiting excellent performance including the cell initial capacity, cycle characteristics, and the safety. The material is produced by dripping an aqueous solution of a salt (e.g., cobalt sulfate) of a doping element (e.g., a transition metal, an alkaline metal, an alkaline-earth metal, B, or Al) into an alkaline solution, a carbonate solution, or a hydrogencarbonate solution in any one of which a compound (e.g., manganese oxide) of a metal (Mn, Co, Ni, or the like) which is the major component of the positive plate material so as to precipitate the compound of the doping element on the major component compound and to cover the major component compound, mixing the major component compound covered with the doping element with a lithium compound (e.g., lithium carbonate), and firing the mixture.
摘要:
A brown coated article which exhibits stable color is provided by the composition and structure of a zinc hot-dip galvanizing layer. The zinc hot-dip galvanizing layer consists essentially of from 1 to 15% by weight of Fe and from 0.05 to 1% by weight of Mn, and balance of Zn. A brown Zn-Mn-Fe oxide layer is present on the surface of the zinc hot-dip galvanizing layer.
摘要:
A feature parameter candidate generation apparatus has a storage unit that stores the values of feature parameters extracted from each of samples, an index value calculation unit that calculates an index value, which is obtained by normalizing the number of the kinds of the values of feature parameters by the number of the samples, for each of the feature parameters, an evaluation object selection unit that selects combinations of feature parameters which are objects to be evaluated, an evaluation unit that evaluates whether the uniformity of a frequency distribution of index values of the individual feature parameters for combinations of feature parameters selected as the objects to be evaluated satisfies a predetermined criterion, and a candidate determination unit that determines, as feature parameter candidates to be given to the model generation device, a combination of feature parameters that is evaluated to satisfy the predetermined criterion.
摘要:
An information processing device stores an extracted feature of each inspection item of the process inspection, and a determination result of a final inspection in a memory device, calculates a separation degree between a distribution of features of products which were determined as good products at the final inspection and a distribution of features of products which were determined as defective products at the final inspection for every inspection item or every combination of inspection items based on data of the products stored in the memory device, selects an inspection item whose inspection standard is to be reset from the inspection items or the combinations of the inspection items based on a value of the separation degree. Thus providing a method of appropriately setting an inspection standard for detecting a defect sign during process inspection. Further a process inspection device and inspection standard setting device which implements the same.
摘要:
Provided is a cathode material for a lithium secondary battery composed of an aggregate of Li-A-O composite oxide particles (wherein A represents one or more metal elements selected from Mn, Fe, Co and Ni), wherein the lithium composite oxide contains 20 to 100 ppm (by mass) of P, and the total content of impurity elements excluding essential components is 2000 ppm or less. Also provided is a manufacturing method of such a cathode material for a lithium secondary battery including the steps of suspending lithium carbonate in water and thereafter introducing a metallic salt solution of one or more metal elements selected from Mn, Fe, Co and Ni in the lithium carbonate suspension, adding a small amount of phosphoric acid so that the P content in the Li-A-O composite oxide particles will be 20 to 100 ppm (by mass), and forming an aggregate of Li-A-O composite oxide particles containing 20 to 100 ppm (by mass) of P by filtering, cleansing, drying and thereafter oxidizing the obtained carbonate. This cathode material for a lithium secondary battery and its manufacturing method realize improved sinterability and battery characteristics.
摘要:
A factor estimating support device supports estimation of factor from a result generated in a production system. In the factor estimating support device, material/environment history data and test history data acquired from the production system, and the causality structure data indicating causality between the plurality of variables are stored in the storage unit, where when determined that the final quality characteristic is abnormal in the final quality abnormal detecting part, determination is made on whether each variable other than the final quality characteristic is abnormal in the variable abnormality detecting part, and the determination result is reflected on a visible image in which the causality structure data is visualized in the visible image creating part.
摘要:
A method for producing a brown coated article, wherein an iron substrate is dipped at a temperature of from 430.degree. to 600.degree. C. in a molten Zn plating bath containing from 0.05 to 1% by weight of Mn, so as to zinc hot-dip galvanize the same, a heat treatment is carried out to convert the Zn-Mn phase formed by the zinc hot-dip galvanizing to a Zn-Mn-Fe phase, and subsequently the zinc hot-dip galvanizing layer is brought into contact with an acidic aqueous solution containing an oxidizing agent.
摘要:
A water jet propelled boat is equipped with a water intake opening, a water jet outlet, and with a mixed flow type impeller, where the above mentioned water intake opening and the above mentioned water jet outlet are connected by a water passage with the impeller in the middle of the water passage, and where the operation of the impeller causes water to be drawn into the water intake opening and expelled through the above mentioned water outlet to propel the boat. The impeller structure is such that a boss section of the impeller has a plurality fins affixed to it, the outside edges of the above mentioned spiral fins are roughly parallel to the axial center of the above mentioned boss, and, the leading and the trailing edges of the fins, with respect to the axial center of the above described boss, slant down toward the above mentioned water outlet opening. At the same time relative speeds, the invention allows a smaller diameter fin unit and, at speeds of 4,000 rpm and over, it offers improved efficiency.
摘要:
A propeller vane or blade construction wherein cavitation is precluded at the base of the blade where they join the hub on their leading side by introducing a source of pressurized fluid in this area. The fluid may be pressurized either from the dynamic flow through the unit or by the static flow generated by the operation of the unit.