摘要:
An object is to recover metallic lithium from metallic lithium on which an unnecessary substance is formed without discarding the metallic lithium on which an unnecessary substance is formed. The present invention relates to a method for recovering metallic lithium in such a manner that metallic lithium on which a substance is formed is reacted with nitrogen to form lithium nitride; the lithium nitride is reacted with carbon dioxide to form lithium carbonate; the lithium carbonate is reacted with hydrochloric acid to form lithium chloride; the lithium chloride and potassium chloride are melted; and electrolysis is applied to the melted lithium chloride and potassium chloride.
摘要:
An electric double layer capacitor, a lithium ion capacitor, and a charging device including a solar cell and either of the capacitors are disclosed. The electric double layer capacitor includes a first and second light-transmitting substrates; a pair of current collectors provided perpendicular to the substrates; active material layers provided on facing planes of the current collectors; and an electrolyte in a region surrounded by the substrates and the facing active material layers. The lithium ion capacitor includes a first and second light-transmitting substrates; a positive and negative electrode active material layers provided perpendicular to the substrates; and an electrolyte in a region surrounded by the facing substrates and the positive and negative electrode active material layers.
摘要:
A thin energy storage device having high capacity is obtained. An energy storage device having high output is obtained. A current collector and an active material layer are formed in the same manufacturing step. The number of manufacturing steps of an energy storage device is reduced. The manufacturing cost of an energy storage device is suppressed. One embodiment of the present invention relates to an electric double layer capacitor which includes a pair of electrodes including a porous metal material, and an electrolyte provided between the pair of electrodes; or a lithium ion capacitor which includes a positive electrode that is a porous metal body functioning as a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte provided between the positive electrode and the negative electrode.
摘要:
It is an object to provide a novel phosphor which can be manufactured without using a defect formation step which is difficult to control, and a manufacturing method thereof. The phosphor has a structure including a phosphor host material and an emission excitation material which is dispersed in a marbled pattern in the phosphor host material while being in contact with it. The emission excitation material is selected from metal oxide, a semiconductor formed of an element belonging to Group 2B (Group 12) of the periodic table and an element belonging to Group 6B (Group 16) of the periodic table, or an element formed of an element belonging to Group 3B (Group 13) of the periodic table and an element belonging to Group 5B (Group 15) of the periodic table. The phosphor host material and the emission excitation material are mixed and baked with pressure to be joined.
摘要:
An object of the present invention is to provide a film forming method for forming a film with reduced defect and to provide a film forming method for forming a film with a uniform quality. In addition, another object is to provide a manufacturing method of a light emitting element which can be driven with low voltage. Further, another object is to provide a manufacturing method of a light emitting element with high light emission efficiency. A film with reduced defect and a uniform quality can be formed by fixing a substrate to a substrate holding unit so that at least a part of a surface of the substrate is exposed, evaporating a vapor deposition material from an evaporation source filled with the vapor deposition material, irradiating the vapor deposition material which is evaporated with a laser beam, and depositing the vapor deposition material on the surface of the substrate.
摘要:
A novel phosphor material which can be manufactured without utilizing a fault formation process which is difficult to be controlled. The phosphor material has a eutectic structure formed of a base material that is a semiconductor formed of a Group 2 element and a Group 6 element, a semiconductor formed of a Group 3 element and a Group 5 element, or a ternary phosphor formed of an alkaline earth metal, a Group 3 element, and a Group 6 element, and a solid solution material including a transition metal. The phosphor material is suited for an EL element because of less variation of characteristic since defect formation process in which stress is applied externally to form a defect inside of a phosphor material is not needed.
摘要:
An object is to reduce effects of emission luminance change of the a light emitting body which exhibits blue light emission (a blue-light emitting body) by electric field excitation, that is, a blue-light emitting body which is applicable to an inorganic EL element on the chromaticity coordinates of the light it emits. Further, another object is to improve the repeatability of images displayed on a light emitting device including the inorganic EL element and to realize stable display with the light emitting device which is hardly affected by luminance change. In a method for manufacturing an inorganic EL blue-light emitting body, a sulfide light emitting body, an additive, and a copper compound are mixed and the obtained mixture is baked at 600° C. or more and 1000° C. or less, whereby the sulfide light emitting body can include copper sulfide (CuxS, wherein x is preferably 0.5 to 2.5) as a part of the sulfide light emitting body.
摘要:
A light emitting element is provided, which comprises a pair of electrodes, a p-type semiconductor layer, and an n-type semiconductor layer. The p-type semiconductor layer and the n-type semiconductor layer are interposed between the pair of electrodes. The p-type semiconductor layer includes a first sulfide, and the n-type semiconductor layer includes a second sulfide. At least one of the p-type semiconductor layer and the n-type semiconductor layer includes a light emitting center.