Abstract: An objective is to reduce the sheet resistance and gas evolution in a battery electrode comprising a conductive intermediate layer capable of reducing or shutting off a current when overcharged. A battery electrode (12) comprises a conductive intermediate layer (123) being placed between a current collector (122) and an active layer (124) while comprising conductive particles (50) and a binder (60). The mass proportion of conductive particles (50) is equal to or larger than the mass proportion of the binder (60). Conductive particles (50) has a size distribution that exhibits a first peak with the maximum at a first particle diameter value and a second peak with the maximum at a second particle diameter value larger than the first particle diameter value. The intermediate layer (123) contains 10% to 60% by mass of conductive particles (52) having particle diameters that belong to the second peak.

Abstract: A power supply apparatus comprises: a transformer that includes primary/secondary windings that are electromagnetically connected to each other with polarities opposite to each other, an output switch that activates/inactivates an electric-current route that extends from an application terminal for an input voltage to a ground terminal via the primary winding a rectifying-smoothing portion that generates an output voltage from an induced voltage, a feedback voltage generation portion that monitors a switch voltage appearing at a connection node between the primary winding and the output switch and generates a feedback voltage in accordance with the output voltage, a reference voltage generation portion that generates a reference voltage, a comparator that compares the feedback voltage and the reference voltage with each other to generate a comparison signal, and a switching control portion that generates an output switch control signal by means of an on-time control method in accordance with the comparison si

Abstract: An image forming apparatus includes a generating unit, a print instruction providing unit, and a display. The generating unit generates print data of a sample sheet if a request for outputting the sample sheet is received while print data formed of plural pages is being generated. The print instruction providing unit provides a print instruction for the print data of the sample sheet after providing a print instruction for the print data that has been generated. The display displays, based on the print data of the sample sheet, an attribute of the sample sheet.

Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode that includes a positive electrode active material layer; a negative electrode that includes a negative electrode active material layer; and a nonaqueous electrolytic solution. When a void volume of the positive electrode active material layer per battery capacity is represented by ? (cm3/Ah), and when a void volume of the negative electrode active material layer per battery capacity is represented by ? (cm3/Ah), the following conditions are satisfied: 1.00???2.20; ??(1) 2.17???3.27; and ??(2) ?<?.

Abstract: A battery, which is provided with a pressure-type current interrupt mechanism, is provided with: a gas-generating material placed outside an electrode body and within a battery case; a positive electrode potential member that is placed outside the electrode body and within the battery case in a manner contacting the gas-generating material, and conducts with the positive electrode of the electrode body; and a negative electrode potential member that is placed outside the electrode body and within the battery case in a manner contacting the gas-generating material while being spaced from the positive electrode potential member, and conducts with the negative electrode of the electrode body. The gas-generating material includes a gas-generating agent that generates a gas when the potential of the positive electrode potential member exceeds a gas generation potential.

Abstract: A nonaqueous electrolyte secondary battery includes an electrode body (20), a nonaqueous electrolytic solution, a battery case (80), and a bag-shaped film (10). The electrode body has a laminate structure in which a positive electrode (30) and a negative electrode (40) are laminated. The battery case accommodates the electrode body and the nonaqueous electrolytic solution. The bag-shaped film covers the electrode body to insulate the electrode body and an inner wall of the battery case from each other. An inner pressure of the battery case is adjusted to be 0.14 MPa to 0.23 MPa.

Abstract: Provided is a lithium ion secondary battery which is improved particularly in a low-temperature characteristic. The lithium ion secondary battery disclosed herein includes a ternary positive electrode active material formed of a lithium transition metal composite oxide having at least Ni, Co, and Mn, and a carbon-black-adhered carbon-based negative electrode active material which is formed of a carbon material having a graphite structure in at least part thereof and which has carbon black (CB) that has adhered to at least part of a surface portion. A molar ratio x of Ni calculated by taking a total molar amount of Ni, Co, and Mn in the ternary positive electrode active material as 100 satisfies the condition of 34?x?46, and a mass ratio a of carbon black calculated by taking a total mass of the carbon material and carbon black in the carbon-black-adhered carbon-based negative electrode active material as 100 satisfies the condition of 0.3???5.

Abstract: A negative electrode sheet of a lithium-ion secondary battery has a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer contains flake graphite particles and has a first region neighboring the negative electrode current collector and a second region neighboring a surface side that are different in perpendicularity of the graphite particles. The perpendicularity of the graphite particles is defined as (m1/m2), where, when the inclination ?n of each of the graphite particles is specified relative to a surface of the negative electrode current collector, m1 is the number of the graphite particles having an inclination ?n of 60°??n?90° and m2 is the number of the graphite particles having an inclination ?n of 0°??n?30°.

Abstract: An image forming apparatus includes a generating unit, a print instruction providing unit, and a display. The generating unit generates print data of a sample sheet if a request for outputting the sample sheet is received while print data formed of plural pages is being generated. The print instruction providing unit provides a print instruction for the print data of the sample sheet after providing a print instruction for the print data that has been generated. The display displays, based on the print data of the sample sheet, an attribute of the sample sheet.

Abstract: A lithium secondary battery (10) provided by the present invention includes a current interruption mechanism (40) operated by a rise in internal pressure. A positive electrode (32) of this battery (10) has a positive electrode mixture layer containing lithium carbonate, a conductive material and a positive electrode active material consisting primarily of a lithium-transition metal oxide. The lithium carbonate is disposed on the surface of the conductive material. Such a positive electrode mixture layer can preferably be fabricated using a positive electrode mixture composition containing a positive electrode active material and a composite conductive material comprising lithium carbonate retained on the surface of a conductive material.

Abstract: In a lithium ion secondary battery, a negative electrode sheet is made of a metal foil and an active material layer containing active material particles. The negative active material layer includes a facing portion that faces a positive active material layer and a non-facing portion that does not face the same. The negative active material particles can be oriented in a magnetic field direction. When an angle between an extending direction of a major axis of the cross section of each particle and the metal foil is ?, the number of particles with the angle ? of 60°-90° is MA, the number of negative active material particles with the angle ? of 0°-30° is MB, and a value MA/MB is assumed to be an orientation degree (AL) of particles, the negative active material layer is made such that an orientation degree (AL1) in the non-facing portion is 1.2 or more.

Abstract: The present invention provides a method of manufacturing a nonaqueous electrolyte secondary battery in which graphite fissuring during rolling of the negative electrode mixture layer is prevented and a deterioration in the performance of the battery is thereby suppressed.

Abstract: A hermetically sealed lithium secondary battery is provided which has an excellent battery performance and in which a current-interrupt mechanism operates accurately when overcharging occurs. This battery comprising an electrode assembly 80 that has a positive electrode 10. The positive electrode 10 has a positive electrode current collector 12, a positive electrode mixture layer 14 formed on the current collector, and a positive electrode assist layer 16 formed on the current collector and adjacent to the positive electrode mixture layer 14.

Abstract: A nonaqueous electrolyte secondary battery is provided with a wound electrode assembly (40), a battery case (20) housing the wound electrode assembly (40), and a nonaqueous electrolyte solution (80) contained in the battery case (20). The nonaqueous electrolyte solution (80) includes an internal electrolyte solution and an external electrolyte solution. The internal electrolyte solution is contained in the interior of the wound electrode assembly (40). The external electrolyte solution (80a) is collected at the bottom of the battery case (20). The viscosity of the internal electrolyte solution is greater than the viscosity of the external electrolyte solution (80a).

Abstract: A nonaqueous electrolyte battery provided by the present invention includes: an electrode body (80) having a flat shape and including a positive electrode and a negative electrode (60); a square-shaped battery case (30) configured to accommodate therein the electrode body (80) and a nonaqueous electrolyte; and a negative electrode collector terminal (94) placed in the battery case (30) and connected to the negative electrode (60) of the electrode body (80). The negative electrode collector terminal (94) is mainly made of copper or copper alloy. An insulator film (10) configured to insulate the battery case (30) from the electrode body (80) is placed between an inner wall (30a) of the battery case (30) and the electrode body (80). The insulator film (10) is joined to the inner wall (30a) of the battery case (30), and the insulator film (10) is placed so as not to make contact with the negative electrode collector terminal (94).

Abstract: Provided is a non-aqueous electrolyte secondary battery with reduced resistance in a low SOC range, with the battery having a coating on its negative electrode active material. This invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode that has a positive electrode active material layer comprising a positive electrode active material, a negative electrode that has a negative electrode active material layer comprising a negative electrode active material, and a non-aqueous electrolyte. The negative electrode active material has a coating. The coating comprises an oxalato complex-derived component and an N-methyl-2-pyrrolidone-derived component. The non-aqueous electrolyte secondary battery internally comprises tungsten. The tungsten content per unit capacity of the non-aqueous electrolyte secondary battery is 0.0048 g/Ah to 0.0078 g/Ah.

Abstract: A battery pack includes a plurality of non-aqueous electrolyte single cells, each single cell being such that a rolled electrode body is housed in a flat case; a plurality of spacers; and a banding member. The rolled electrode body includes a collector portion, and a power generating portion. Each spacer has a recessed portion provided on at least one surface that faces the adjacent single cell. A side plate of the case that faces the surface of the spacer on which the recessed portion is provided includes a thick portion that contacts the power generating portion of the rolled electrode body inside the case, and a thin portion that is thinner than the thick portion and is continuous with both sides of the thick portion in the rolling axis direction. The surface of the spacer on which the recessed portion is provided abuts against only the thick portion.

Abstract: Provided is a method of manufacturing a lithium ion secondary battery in which a battery system contains Na, the lithium ion secondary battery including a battery case which accommodates a positive electrode, a negative electrode, and a nonaqueous electrolytic solution containing LiBOB. This method includes: a pressure reduction step of reducing an internal pressure of the battery case; and a liquid injection step of injecting the nonaqueous electrolytic solution after the pressure reduction step.

Abstract: A nonaqueous electrolyte secondary battery includes a wound electrode body housed in a battery case. The wound electrode body is positioned to the battery case with a positioning member. Among a spatial volume excluding the wound electrode body in the battery case, in a direction of a winding axis of the wound electrode body, a spatial volume X on a negative electrode side of the battery case is larger than a spatial volume Y on a positive electrode side of the battery case. Here, the spatial volume X and the spatial volume Y satisfy 2.1?(X/Y)?5.7.

Abstract: A lithium ion secondary battery 100A has negative electrode active material particles 710A which include graphite particles that are at least partially covered by an amorphous carbon film 750. The negative electrode, active material particles 710A have a TG weight-loss-on-heating onset temperature T1 which satisfies the condition 500° C.?T1?615° C. and a micro-Raman G-band half-width Gh which satisfies the condition 20?Gh?28. This configuration makes it possible to obtain a lithium ion secondary battery 100A in which the reaction resistance in a low-temperature environment can be kept low.