Abstract: A proton conductor contains a metal oxide that has a perovskite structure and that is represented by formula (1): AxB1-yMyO3-?, where an element A is at least one element selected from the group consisting of Ba, Ca, and Sr, an element B is at least one element selected from the group consisting of Ce and Zr, an element M is at least one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc, ? indicates an oxygen deficiency amount, and 0.95?x?1 and 0<y?0.5 are satisfied.

Abstract: A composite metal porous body according to an aspect of the present invention has a framework of a three-dimensional network structure. The framework includes a porous base material and a metal film coated on the surface of the porous base material. The metal film contains titanium metal or titanium alloy as the main component.

Abstract: The titanium plating solution production method including measuring a titanium plating solution containing fluorine and titanium by cyclic voltammetry under the following conditions, and adding titanium to the titanium plating solution so that the potential difference between the spontaneous potential and the Ti3+/Ti4+ redox potential is 0.75 V or more. Conditions: when the temperature of the titanium plating solution is 650° C. to 850° C. and when glassy carbon is used as a working electrode, platinum is used as a pseudo-reference electrode and titanium is used as a counter electrode, the potential scanning is repeatedly performed on the working electrode for at least five times at a scanning speed of 1 mV/sec to 500 mV/sec between a lower potential limit which is the immersion potential of the working electrode and an upper potential limit which is a potential that is 2 V to 4 V higher than the lower potential limit.

Abstract: The metal porous body according to one aspect of the present invention has a framework of a three-dimensional network structure. The framework is hollow inside and is formed of a metal film, and the metal film contains titanium metal or titanium alloy as the main component.

Abstract: Provided is a conductive material including: a base material that is conductive at least at a surface thereof; and a titanium film on the surface of the base material, the titanium film having an average film thickness of not less than 1 ?m and not more than 300 ?m.

Abstract: A method for producing copper includes a first step of dissolving copper by adding a copper-containing material to a solution containing an oxidant, and a second step of depositing copper on a surface of a cathode by bringing a solution (A) containing the oxidant in a reduced state into contact with a solution (B) containing copper dissolved therein with a separator provided between the solution (A) and the solution (B), arranging an anode in the solution (A), arranging the cathode in the solution (B), and applying a voltage to both the electrodes, while the oxidant contained in the solution (A) is regenerated, in which the oxidant has a standard electrode potential of 1.6 V or less.

Abstract: A capacitor includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material held on the positive electrode current collector. The positive electrode active material contains activated carbon. The activated carbon has a carboxyl group, and an amount of desorption of carboxyl group per unit mass of the activated carbon is 0.03 ?mol/g or less when the activated carbon is heated with a temperature increase from 300° C. to 500° C. The capacitor has an upper-limit voltage Vu for charging and discharging. The upper-limit voltage Vu of a lithium-ion capacitor is 4.2 V or more. The upper-limit voltage Vu of an electric double-layer capacitor is 3.3 V or more.

Abstract: A positive electrode for a lithium ion capacitor includes a positive electrode current collector with a three-dimensional network structure and a positive electrode mixture which contains a positive electrode active material and with which the positive electrode current collector is filled. The positive electrode current collector contains aluminum or an aluminum alloy. The positive electrode active material contains a porous carbon material that reversibly carries at least an anion. The positive electrode has an active material density of 350 to 1000 mg/cm3.

Abstract: An alkali metal ion capacitor includes a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an electrolyte containing alkali metal ions and anions, wherein the separator has a thickness of 10 ?m or less, the positive electrode includes a positive electrode current collector having a three-dimensional mesh-like metal skeleton and a positive electrode active material held on the positive electrode current collector, the negative electrode includes a negative electrode current collector having a three-dimensional mesh-like metal skeleton and a negative electrode active material held on the negative electrode current collector, the positive electrode has a maximum surface roughness Rz1 of 35 ?m or less and the negative electrode has a maximum surface roughness Rz2 of 35 ?m or less.

Abstract: An alkali metal ion capacitor includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The electrolyte contains an alkali metal salt and an ionic liquid. The alkali metal salt is a salt of a first alkali metal ion serving as a first cation and a first anion. The negative electrode active material is pre-doped with a second alkali metal ion until the potential of the negative electrode reaches 0.05 V or less with respect to a second alkali metal. The alkali metal ion capacitor has an upper-limit voltage for charging and discharging of more than 3.8 V.

Abstract: The electrode for the power storage device includes carbon nanotubes, an ionic liquid, and a three-dimensional network metal porous body having a plurality of pore portions filled with the carbon nanotubes and the ionic liquid, wherein, in pore portions exposed at a surface of the three-dimensional network metal porous body, of the plurality of pore portions, a ratio (d/D) between a pore portion diameter (D) in a first direction within the surface of the three-dimensional network metal porous body and a pore portion diameter (d) in a second direction orthogonal to the first direction within the surface of the three-dimensional network metal porous body is in a range of 0<d/D<1, and pore portions in said range account for more than or equal to 95% and less than or equal to 100% of the pore portions exposed at the surface.

Abstract: Provided is a method for producing a nonaqueous-electrolyte battery. A positive-electrode body 1 is prepared that includes a positive-electrode active-material layer 12 including a powder-molded body, and a positive-electrode-side solid-electrolyte layer 13 that is amorphous and formed by a vapor-phase process. A negative-electrode body 2 is prepared that includes a negative-electrode active-material layer 22 including a powder-molded body, and a negative-electrode-side solid-electrolyte layer 23 that is amorphous and formed by a vapor-phase process. The positive-electrode body 1 and the negative-electrode body 2 are bonded together by subjecting the electrode bodies 1 and 2 being arranged such that the solid-electrolyte layers 13 and 23 are in contact with each other, to a heat treatment under application of a pressure to crystallize the solid-electrolyte layers 13 and 23.

Abstract: Provided are a Li-ion battery (nonaqueous-electrolyte battery) 100 that includes a positive-electrode active-material layer 12, a negative-electrode active-material layer 22, and a sulfide-solid-electrolyte layer 40 disposed between the active-material layers 12 and 22. The sulfide-solid-electrolyte layer 40 includes a sulfur-added layer 43 in an intermediate portion in the thickness direction of the sulfide-solid-electrolyte layer 40. The sulfur-added layer 43 has a higher content of elemental sulfur than any other portion of the sulfide-solid-electrolyte layer 40. The sulfur-added layer 43 substantially does not have any pin holes.

Abstract: Provided is a positive-electrode body for a nonaqueous-electrolyte battery in which formation of high-resistance layers at the contact interfaces between positive-electrode active-material particles and solid-electrolyte particles is suppressed so that an increase in the interface resistance is suppressed. A positive-electrode body 1 for a nonaqueous-electrolyte battery according to the present invention includes a mixture of sulfide-solid-electrolyte particles 11 and covered positive-electrode active-material particles 10 in which surfaces of positive-electrode active-material particles 10a are covered with cover layers 10b having Li-ion conductivity. The cover layers 10b are formed of an amorphous oxide having oxygen deficiency. The cover layers 10b have oxygen deficiency and, as a result, Li-ion conductivity and electron conductivity that are sufficient for charge and discharge of the battery can be stably ensured in the cover layers 10b.

Abstract: Provided are a nonaqueous electrolyte battery that can suppress internal short circuits due to growth of dendrites from a negative electrode and has high charge-discharge cycle capability; and a solid electrolyte with which the charge-discharge cycle capability of a nonaqueous electrolyte battery can be improved by using the solid electrolyte as a solid electrolyte layer of the nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a solid electrolyte layer interposed between these electrodes, wherein the solid electrolyte layer includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur. The solid electrolyte for a nonaqueous electrolyte battery includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur.

Abstract: A solid-electrolyte battery is provided that includes a LiNbO3 film serving as a buffer layer between a positive-electrode active material and a solid electrolyte and has a sufficiently low electrical resistance. The solid-electrolyte battery includes a positive-electrode layer, a negative-electrode layer, and a solid-electrolyte layer that conducts lithium ions between the electrode layers, wherein a buffer layer that is a LiNbO3 film is disposed between a positive-electrode active material and a solid electrolyte, and a composition ratio (Li/Nb) of Li to Nb in the LiNbO3 film satisfies 0.93?Li/Nb?0.98. The buffer layer may be disposed between the positive-electrode layer and the solid-electrolyte layer or on the surface of a particle of the positive-electrode active material. The buffer layer may have a thickness of 2 nm to 1 ?m.

Abstract: Provided is a nonaqueous electrolyte battery having a high charge-discharge cycle capability in which the battery capacity is less likely to decrease even after repeated charge and discharge. The nonaqueous electrolyte battery includes a positive-electrode layer 1, a negative-electrode layer 2, a solid electrolyte layer 3 interposed between the positive-electrode layer 1 and the negative-electrode layer 2, and a boundary layer 4 between the negative-electrode layer 2 and the solid electrolyte layer 3, the boundary layer 4 maintaining the bond between the negative-electrode layer 2 and the solid electrolyte layer 3. The negative-electrode layer 2 at least contains Li. The boundary layer 4 at least contains a group 14 element in the periodic table. The boundary layer 4 has a thickness of 50 nm or less.

Abstract: A gateway device according to the present art includes a storage part that stores a list having identification information identifying another gateway device that is selectable as a move-destination gateway device; a receiving part that receives a call-out signal from a device located in a telephone network; a move-destination-gateway-device selecting part that selects a move-destination gateway device from the list; a re-direction notification generating part that generates a re-direction notification to be transmitted to the selected move-destination gateway device; a re-direction notification transmitting part that transmits the re-direction notification to the move-destination gateway device; a re-direction request signal generating part that generates a re-direction request signal including call identification information identifying the call-out signal; and a re-direction request signal transmitting part that transmits the re-direction request signal to the device located in the telephone network that t

Abstract: A lithium battery includes a substrate, a positive electrode layer, a negative electrode layer, and a sulfide solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, the positive electrode layer, the negative electrode layer, and the sulfide solid electrolyte layer being provided on the substrate. In this lithium battery, the positive electrode layer is formed by a vapor-phase deposition method, and a buffer layer that suppresses nonuniformity of distribution of lithium ions near the interface between the positive electrode layer and the sulfide solid electrolyte layer is provided between the positive electrode layer and the sulfide solid electrolyte layer. As the buffer layer, a lithium-ion conductive oxide, in particular, LixLa(2?x)/3TiO3 (x=0.1 to 0.5), Li7+xLa3Zr2O12+(x/2) (?5?x?3, preferably ?2?x?2), or LiNbO3 is preferably used.

Abstract: The battery of the invention has a positive-electrode layer 20, a negative-electrode layer 50, and an electrolytic layer 40 through which ionic conduction is performed between the two electrode layers. In this battery, the positive-electrode layer 20 and the negative-electrode layer 50 are laminated with each other and an insulating layer 30 is placed between the positive-electrode layer 20 and the negative-electrode layer 50. The insulating layer 30 has an area smaller than that of one of the positive-electrode layer 20 and the negative-electrode layer 50 and larger than that of the other. There is no place where the positive-electrode layer 20 and the negative-electrode layer 50 face each other through only the electrolytic layer 40. Even when the electrolytic layer 40 has a pinhole, the presence of the insulating layer 30 between the positive-electrode layer 20 and the negative-electrode layer 50 can suppress short-circuiting between the positive- and negative-electrode layers.