Abstract: A negative electrode for a secondary battery includes a separator; a negative electrode active material layer which is fixed to the separator and can store and emit lithium ions; and a current collector layer formed on the side of the separator opposite to the negative electrode active material layer. The negative electrode active material layer contains at least one selected from the group consisting of silicon, silicon alloys, compounds containing silicon and oxygen, compounds containing silicon and nitrogen, compounds containing silicon and fluorine, tin, tin alloys, compounds containing tin and oxygen, compounds containing tin and nitrogen, and compounds containing tin and fluorine.

Abstract: A manufacturing method of the present invention includes ejecting a melt 61 of a solid electrolyte onto at least one electrode plate selected from a positive electrode plate 20 and a negative electrode plate 30, thereby depositing the melt 61 onto the at least one electrode plate, and compressing the positive electrode plate 20 and the negative electrode plate 30 while sandwiching the melt 61, thereby forming a layered body including the positive electrode plate 20, an electrolyte layer 62 including the solid electrolyte, and the negative electrode plate 30. In accordance with this manufacturing method, a thin lithium secondary battery having excellent characteristics can be manufactured in a highly productive manner.

Abstract: A manufacturing method of the present invention includes ejecting a melt 61 of a solid electrolyte onto at least one electrode plate selected from a positive electrode plate 20 and a negative electrode plate 30, thereby depositing the melt 61 onto the at least one electrode plate, and compressing the positive electrode plate 20 and the negative electrode plate 30 while sandwiching the melt 61, thereby forming a layered body including the positive electrode plate 20, an electrolyte layer 62 including the solid electrolyte, and the negative electrode plate 30. In accordance with this manufacturing method, a thin lithium secondary battery having excellent characteristics can be manufactured in a highly productive manner.

Abstract: A method for manufacturing an electrode of an electrochemical element includes providing lithium and an element that has a larger atomic weight than that of lithium and is other than a constituting material of the electrode to an electrode by using a lithium vapor and a vapor of the element.

Abstract: To provide an electrochemical device with a layer structure causing no deterioration of characteristics of materials, in the method for preparing an electrochemical device comprising a first current collector, a first electrode active material layer, a solid electrolyte layer, a second electrode active material layer and a second current collector, all of which are accumulated, the first electrode active material layer, the second electrode active material layer or the solid electrolyte layer is formed by supplying atoms, ions or clusters constituting the first electrode active material layer, the second electrode active material layer or the solid electrolyte layer to the substrate, while irradiating electrons or electromagnetic waves with energy prescribed according to the composition of the first electrode active material layer, the second electrode active material layer or the solid electrolyte layer.

Abstract: In a method for examining a negative electrode of a battery, a total thickness of a current collector and an active material layer is measured. Then, in order to estimate a composition of the active material layer, the total resistivity of the current collector and the active material layer is measured.

Abstract: A method for manufacturing an electrode for an electrochemical element capable of absorbing and releasing lithium ions includes a lithiation treatment method for compensating an irreversible capacity of the electrode for an electrochemical element. In the lithiation treatment method, lithium is provided to the electrode by allowing a lithium vapor to flow with a movement route of the lithium vapor limited.

Abstract: A method for examining a negative electrode of a non-aqueous electrolyte secondary battery includes irradiating an active material layer including silicon or a silicon compound having a known composition, which is capable of electrochemically absorbing and releasing lithium ions on a current collector made of a metal including at least any one of copper, nickel, titanium and iron, with an X-ray; and measuring an attenuation amount of any one of a CuK? ray, a NiK? ray, a TiK? ray, and a FeK? ray, which is a fluorescent X-ray of the metal included in the current collector in fluorescent X-rays generated from the active material layer.

Abstract: A method for manufacturing a negative electrode of a battery includes forming an active material layer and a active material layer for measuring both including a material having a characteristic absorption in an infrared region on a surface of a sent current collector and a surface of a measuring current collector that is being sent faster than the current collector, respectively; and irradiating the active material layer for measuring with an infrared ray and measuring a wave number of a reflected infrared ray in order to estimate a composition of at least the active material layer for measuring.

Abstract: In a method for testing a negative electrode of a secondary battery, light is irradiate to an active material layer formed on a current collector having a plurality of projections at least on one side thereof, the active material layer including first columnar bodies of active material grown obliquely from the projections. The angle is measured between the reflected light from the active material layer and a normal line parallel to the thickness direction of the current collector.

Abstract: In a method for manufacturing a negative electrode for a battery, an active material layer including a metallic element M and an element A that is at least any one of oxygen, nitrogen, and carbon is formed on a current collector. This active material layer is irradiated with an X-ray and at least one of intensity of a K? ray of the element A and intensity of a K? ray of the metallic element M in fluorescent X-rays generated from the active material layer is measured.

Abstract: In a method for manufacturing a non-aqueous electrolyte secondary battery, a negative electrode having a current collector exposed portion in a portion corresponding to an outer winding end of an electrode body, metallic lithium piece is allowed to precipitate or be deposited on this current collector exposed portion, and this metallic lithium piece is joined to the other portion of the current collector exposed portion or one metallic lithium piece is joined to the other metallic lithium piece so as to fix two points of the negative electrode.

Abstract: An electrode plate for a battery includes a current collector having a substrate and a plurality of protrusions that are carried on the substrate; and an active material layer that is carried on the current collector. The protrusions include a conductive material that undergoes plastic deformation more easily than the substrate. A lithium secondary battery includes the above electrode plate.

Abstract: A non-aqueous electrolyte secondary battery having both high capacity and long-life is provided by solving the problem of the large irreversible capacity of a negative electrode active material. The non-aqueous electrolyte secondary battery is produced by a method including the steps of: reacting lithium with a negative electrode active material by bringing a metal film that is composed mainly of lithium into contact with a surface of a negative electrode active material layer; and thereafter combining the negative electrode with a positive electrode to form an electrode assembly. The metal film composed mainly of lithium is preferably formed on a carrier that does not chemically react with lithium, and the metal film on the carrier is preferably brought into contact with the negative electrode active material layer while heating and applying a pressure thereto.

Abstract: In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle ? formed between the columnar particles and the normal direction of the current collector is preferably 10°??<90°.

Abstract: A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes an active material and no binder, the active material contains silicon and nitrogen, and the active material layer has a larger nitrogen ratio on a side of a first face which is in contact with the current collector than on a side of a second face which is not in contact with the current collector.

Abstract: Electrode layers (1, 2) are arranged on both sides of a dielectric layer (3) facing each other so as to configure a capacitor. Lead electrodes (4, 5) are formed in the electrode layers (1, 2). A penetrating electrode (6) that is insulated from the electrode layers (1, 2) is formed. An electronic component (10) configured in this manner is mounted on a wiring board, and a semiconductor chip can be mounted thereon. Along with connecting the semiconductor chip to the wiring board via the penetrating electrode (6), the semiconductor chip or the wiring board is connected to the lead electrodes (4, 5). In this manner, while suppressing the size increase of a mounted area, the capacitor or the like can be arranged near the semiconductor chip. Thus, the semiconductor chip is driven with high frequency more easily.

Abstract: Electrode layers (1, 2) are arranged on both sides of a dielectric layer (3) facing each other so as to configure a capacitor. Lead electrodes (4, 5) are formed in the electrode layers (1, 2). A penetrating electrode (6) that is insulated from the electrode layers (1, 2) is formed. An electronic component (10) configured in this manner is mounted on a wiring board, and a semiconductor chip can be mounted thereon. Along with connecting the semiconductor chip to the wiring board via the penetrating electrode (6), the semiconductor chip or the wiring board is connected to the lead electrodes (4, 5). In this manner, while suppressing the size increase of a mounted area, the capacitor or the like can be arranged near the semiconductor chip. Thus, the semiconductor chip is driven with high frequency more easily.

Abstract: The amorphous-silica particle having 0.1–0.7 ?m of the average particle diameter, 5–30 m2/g of the specific surface area, less than 40% of the dispersion coefficient, and 20 ?C/m2 of the absolute value of the triboelectrostatic charge, can be obtained, by setting flame temperature to more than melting point of silica, raising the silica concentration in a flame, and staying the generated silica particle in the flame for a short time to be grew up. Since this silica particle has a particle shape being near a true sphere, and a particle size of said particle is remarkably uniform, so it is suitable for a filler of a semiconductor sealing agent or various materials, etc. In addition, since said particle has strong electrification, it is also suitable for an outer or an inner additional agent of a toner for an electronic photograph, a photo conductor material for a electronic photograph, and a material of an electric charge transportation layer, etc.