Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer and a current collector. The active material-containing layer comprises a first edge having an arc shape and a second edge positioned opposite to the first edge. The current collector comprises an active material-supporting section supporting the active material-containing layer, and an active material-non-supporting section. The curving amount is represented by a maximum distance from the first edge to a reference line connecting two points on the first edge. The curving amount is in a range of ?1 mm or more and less than 0 mm.

Abstract: An active material includes a composite oxide represented by the general formula LiaTibNb2WcO2b+3c+5+? and satisfying 0?a?b+3c+4, 0<b<2, 0<c<2, 1.9b+2.85c+4.75???2.1b+3.15c+5.25. A crystal structure of the composite oxide is at least one of a monoclinic structure and an orthorhombic structure.

Abstract: According to a storage battery of an embodiment includes a first battery module and a second battery module connected in parallel with the first battery module. The number of first cells connected in series in the first battery module is M, and the number of second cells connected in series in the second battery module is N. When an open circuit voltage at SOC=X % of the first cells and the second cells are Va1 (X) and Va2 (X), respectively, the voltages of the battery modules are M×Va1 (X)<N×Va2 (X) in the range where the SOC of the cell is 0% to 30%, and M×Va1 (X)>N×Va2 (X) in the range where the SOC of the cell is 70% to 100%.

Abstract: According to one embodiment, a method of producing a secondary battery is provided. The method includes preparing a battery architecture including a positive electrode, a negative electrode, and an electrolyte; adjusting a positive electrode potential to a range of 3.4 V to 3.9 V and a negative electrode potential to a range of 1.5 V to 2.0 V based on an oxidation-reduction potential of lithium, thereby providing a potential adjusted state; and holding the battery architecture in the potential adjusted state at a holding temperature of 50° C. to 90° C. The positive electrode includes a lithium-nickel-cobalt-manganese composite oxide. The negative electrode includes a niobium-titanium composite oxide. The electrolyte includes one or more first organic solvent having a viscosity of 1 cP or less.

Abstract: According to one embodiment, a battery is provided. The battery includes a positive electrode, and a negative electrode including a negative electrode active material-containing layer including a niobium-titanium composite oxide and a conductive agent that includes a carbon material. The negative electrode active material-containing layer includes a principal surface facing the positive electrode. Assuming that the thickness of the negative electrode active material-containing layer is A, a ratio (C2/C1) of carbon content ratio C2 at a depth of 0.5 A from the principal surface to carbon content ratio C1 at a depth of 1 ?m from the principal surface satisfies 2?C2/C1?30.

Abstract: According to one embodiment, provided is an active material that includes a secondary particle containing a plurality of primary particles containing a niobium-containing oxide. The secondary particle includes adjacent sections at which the primary particles are adjacent to each other and necking sections in which the primary particles are joined to each other. A total perimeter L of the primary particles and a sum Lcl of perimeters of the primary particles excluding the necking sections satisfy a relationship of 0.1<(L?Lcl)/L?0.6.

Abstract: A press machine includes a display that displays a plurality of images, and a processor that generates a plurality of images corresponding to a slide operation and a movement operation. The plurality of images include a first image having an annular shape, a second image having an arc shape, and a third image. A first region of the second image represents a movement time required for the movement operation, a third region represents a stop time required for a slide stop process, and a second region represents a delay time until the slide stop process starts after the movement time elapses. The processor displays the third image on the display as a determination element for determining whether the slide operation and the movement operation are settable in a relationship between the slide operation and the movement operation based on an input from the user interface.

Abstract: According to one embodiment, provided is an active material including a crystal particle that includes a niobium-titanium composite oxide. A ratio ANb/ATi of a Nb abundance ANb to a Ti abundance ATi in the crystal particle satisfies 2.3?ANb/ATi?4.0. According to a powder X-ray diffraction spectrum using a Cu-K? ray for the crystal particle, an intensity ratio I?/I? of a peak intensity I? of a peak ? appearing at 12.5°?2??13.0° to a peak intensity I? of a peak ? appearing at 8.5°?2??9.0° is within a range of 0.1<I?/I??2.0.

Abstract: According to an embodiment, an electrode group is provided. The electrode group includes a positive electrode, and a negative electrode. The negative electrode active material-containing layer includes a facing section which faces the positive electrode active material-containing layer and a non-facing section which does not. A first fluorine-containing coating is formed on a main surface of the negative electrode active material-containing layer in at least a part of the non-facing section. The abundance ratio of fluorine atoms included in the first fluorine-containing coating is in the range of 2.5 atom % to 10 atom %.

Abstract: According to one embodiment, provided is an active material including a composite metal oxide containing an Mo element, an Nb element, and at least one element M selected from the group consisting of Ti, V, Ta, Fe, Co, Mn, Ni, Bi, Sb, As, P, Cr, W, B, Na, K, Mg, Al, Ca, Y and Si. A crystal structure of the composite metal oxide has a non-periodic crystal structure. The active material includes the composite metal oxide as spherical particles. The spherical particles are secondary particles containing primary particles of the composite metal oxide having an average particle size from 10 nm to 300 nm, an average particle size of the secondary particles being from 1 ?m to 10 ?m.

Abstract: According to one embodiment, an active material including a niobium-titanium oxide phase having a monoclinic structure is provided. The niobium-titanium oxide phase has a crystal structure that includes in a crystal lattice thereof, at least one per unit lattice of a (Nb, Ti) O6 octahedron site composed only with vertex-sharing, a bond angle distortion in the octahedron site being 0.8 ?2/deg2 or less. A crystallite diameter of the niobium-titanium oxide phase is in a range from 85 nm or greater to 130 nm or less.

Abstract: According to one embodiment, provided is an electrode slurry including carboxymethyl cellulose and niobium oxide particles. A degree of etherification of the carboxymethyl cellulose is 0.6 or more and 1.0 or less. A contact angle with water according to a permeation rate method of the niobium oxide particles is 83° or more.

Abstract: According to one embodiment, a secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte and a separator. The positive electrode includes a halide including one or more metal elements selected from the group consisting of copper, iron, nickel, cobalt, tin, and zinc. The negative electrode includes one or more selected from the group consisting of lithium metal, a lithium alloy, and a compound capable of having Li inserted and extracted. The nonaqueous electrolyte contains aluminum ions. The separator has lithium ion conductivity and is interposed between the positive electrode and the negative electrode.

Abstract: According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode, a negative electrode, and a gel polymer layer interposed between the positive electrode and the negative electrode. At least a part of the negative electrode is opposed to the positive electrode. The gel polymer layer is formed of a gel electrolyte composed of a polymer material, an organic solvent and a lithium salt, and a sheet base member which supports the gel electrolyte, or the gel polymer layer is formed of only the gel electrolyte.

Abstract: According to one embodiment, an electrode material is provided. The electrode material includes active material particle containing: a niobium-titanium composite oxide having an average composition in which a molar ratio of niobium to titanium (MNb/MTi) is greater than 2; and at least one element A selected from the group consisting of potassium, iron and phosphorus. The active material particle contain the element A at a concentration in the range of 100 ppm to 2000 ppm.

Abstract: An electrode material may include an active material particle containing: a niobium-titanium composite oxide having an average composition in which a molar ratio of niobium to titanium (MNb/MTi) is greater than 2; and at least one element A selected from the group consisting of potassium, iron and phosphorus. The active material particle may contain the element A at a concentration in the range of 100 ppm to 2000 ppm.

Abstract: According to one embodiment, provided is an electrode including a current collector and an active material-containing layer in contact with the current collector. The active material-containing layer contains a carbon nanotube and particles of titanium-containing oxide having an average particle size or 0.1 ?m to 3 ?m. A peel strength between the current collector and the active material-containing layer is within a range of 0.2 kN/m to 0.7 kN/m.

Abstract: According to one embodiment, provided is an active material including a composite oxide having a tetragonal crystal structure. The composite oxide is represented by general formula LiaTibNb2?2dMc+2dO2b+5+3c. Here, M is one selected from the group consisting of W and Mo, 0?a?b+4+3c, 0<b<2?2d, and 0<c<2?4d.

Abstract: According to one embodiment, there is provided an active material represented by a general formula Lix(NiaCobMncMd)1?s(Nb1?t?uTatM?u)sO2. Here, M is at least one selected from the group consisting of Li, Ca, Mg, Al, Ti, V, Cr, Zr, Mo, Hf, and W, M? is at least one selected from the group consisting of K, P, Fe, Si, Na, Cu and Zn, and 1.0?x?1.3, 0?a?0.9, 0?b?1.0, 0?c?0.8, 0?d?0.5, a+b+c+d=1, 0.005?s?0.3, 0.0005?t?0.1, and 0?u?0.3 are satisfied.