Abstract: According to one embodiment, there is provided an active material. The active material contains a composite oxide represented by the following general: a general formula Lix(Nb1?yTay)2+0.5zTi1?zM0.5zO7 (0?x?5, 0?y?1, and 0<z?1). In this formula, M is at least one metal element selected from the group consisting of Sc, Y, V, Cr, Fe, Co, Mn, Al, and Ga.

Abstract: A battery active material of the present embodiment includes a first active material and a second active material. The first active material contains a neutral or acidic active material substrate formed of a titanium oxide or a titanate compound, and an inorganic compound layer covering a surface of the active material substrate. The second active material is basic and is formed of a titanium oxide or a titanate compound. The first active material and/or the second active material are covered with a carbon coating layer.

Abstract: According to one embodiment, there is provided an active substance. The active substance includes secondary particles and a carbon material phase formed on at least a part of a surface of each of the secondary particles. Each of the secondary particles is constructed by aggregated primary particles of an active material. The primary particles of the active material includes a niobium composite oxide represented by LixM(1-y)NbyNb2O(7+?), wherein M is at least one selected from the group consisting of Ti and Zr, and x, y, and ? respectively satisfy 0?x?6, 0?y?1, and ?1???1. The secondary particles have a compression fracture strength of 10 MPa or more.

Abstract: According to one embodiment, there is provided an active substance. The active substance includes particles of niobium titanium composite oxide and a phase including a carbon material. The niobium titanium composite oxide is represented by Ti1-xM1xNb2-yM2yO7. The phase is formed on at least a part of the surface of the particles. The carbon material shows, in a Raman chart obtained by Raman spectrometry, a G band observed at from 1530 to 1630 cm?1 and a D band observed at from 1280 to 1380 cm?1. A ratio IG/ID between a peak intensity IG of the G band and a peak intensity ID of the D band is from 0.8 to 1.2.

Abstract: According to one embodiment, there is provided an active material including monoclinic niobium titanium composite oxide particles and a carbon material layer. The monoclinic niobium titanium composite oxide particles can absorb and release Li ions or Na ions and satisfy Formula (1) below. The carbon material layer covers at least a part of surfaces of the niobium titanium composite oxide particles and satisfies Formula (2) below: 0.5?(?/?)?2??(1) 0?(?/?)?0.

Abstract: According to one embodiment, there is provided a negative electrode. The negative electrode includes a negative electrode layer. The negative electrode layer contains a titanium composite oxide and a carboxymethyl-cellulose compound. The carboxymethyl-cellulose has a degree of etherification of 1 or more and 2 or less. The negative electrode layer has a density of 2.2 g/cm3 or more.

Abstract: In general, according to one embodiment, an active material for battery includes a monoclinic complex oxide. The monoclinic complex oxide is expressed by the general formula LixM1M22O(7±?) (wherein M1 is at least one element selected from the group consisting of Ti, Zr, Si, and Sn, M2 is at least one element selected from the group consisting of Nb, V, Ta, Bi, and Mo, 0?x?5, and 0???0.3), and has symmetry belonging to the space group C2/m (International tables Vol. A No. 12), and one element of the M2 or M1 being maldistributed in the occupied 2a and 4i sites in a crystal of the monoclinic complex oxide.

Abstract: In general, according to one embodiment, the active material for a battery contains a niobium composite oxide represented by the formula: LixM(1-y)NbyNb2O(7+?). M represents at least one kind selected from the group consisting of Ti and Zr. X, y, and ? are numbers respectively satisfying the following: 0?x?6, 0?y?1, and ?1???1). The pH of the active material for a battery is from 7.4 to 12.5.

Abstract: According to one embodiment, an electrode includes a current collector and an active material-including layer. The active material-including layer includes a first layer and a second layer. The first layer is provided on a surface of the current collector and includes lithium titanium oxide having a spinel structure. The second layer is provided on the first layer and includes a monoclinic ?-type titanium composite oxide.

Abstract: According to one embodiment, an active material containing a niobium titanium composite oxide is provided. The niobium titanium composite oxide has average composition represented by LiyNb2+xTi1?xO7+0.5x (0?x?0.5, 0?y?5.5). The niobium titanium composite oxide satisfies peak intensity ratios represented by the following formulae (1) to (3): 0.05?(B/A)?0.7??(1) 0.01?(C/A)?0.2??(2) 0?(D/A)?0.

Abstract: According to one embodiment, a battery electrode includes an active material layer and a current collector is provided. The active material layer contains particles of a monoclinic ?-type titanium complex oxide and particles of a lithium titanate having a spinel structure. When a particle size frequency distribution of particles contained in the active material layer is measured by the laser diffraction and scattering method, a first peak P1 appears in a range of 0.3 ?m to 3 ?m and a second peak P2 appears in a range of 5 ?m to 20 ?m in the frequency distribution diagram. The ratio FP1/FP2 of the frequency FP1 of the first peak P1 to the frequency FP2 of the second peak P2 is 0.4 to 2.3.

Abstract: According to one embodiment, an electrode includes a current collector, an active material-containing layer, a first peak, a second peak and a pore volume. The active material-containing layer contains an active material having a lithium absorption potential of 0.4 V (vs. Li/Li+) or more. The first peak has a mode diameter of 0.01 to 0.1 ?m in a diameter distribution of pores detected by mercury porosimetry. The second peak has a mode diameter of 0.2 ?m (exclusive) to 1 ?m (inclusive) in the diameter distribution of pores. The pore volume detected by the mercury porosimetry is within a range of 0.1 to 0.3 mL per gram of a weight of the electrode excluding a weight of the current collector.

Abstract: According to one embodiment, a battery active material includes a complex oxide containing Nb and Ti and an element M. In the active material, the molar ratio (M/Ti) of the element M to Ti satisfies the following formula (I): 0<M/Ti?0.5 (I). In the complex oxide containing Nb and Ti, the molar ratio (Nb/Ti) of Nb to Ti satisfies the following formula (II): 0?Nb/Ti?5 (II). The element M is at least one selected from the group consisting of B, Na, Mg, Al, Si, S, P, K, Ca, Mo, W, Cr, Mn, Co, Ni, and Fe.

Abstract: According to one embodiment, a battery active material is provided. The battery active material includes monoclinic complex oxide represented by the formula LixTi1-yM1yNb2-zM2zO7+? (0?x?5, 0?y?1, 0?z?2, ?0.3???0.3). In the above formula, M1 is at least one element selected from the group consisting of Zr, Si and Sn, and M2 is at least one element selected from the group consisting of V, Ta and Bi.

Abstract: A beam winding apparatus for helically winding elongate strips of textile material on a beam for treatment with a treatment liquid. The beam is in the form of a rotatable perforated cylindrical tube having a central barrel portion, a pair of flanges at opposite ends of the tube, and a pair of conical portions each disposed between the central barrel portion and a respective one of the flanges. The apparatus also comprises means for transversing the strips of textile material between the opposite ends of the perforated tube, the traversing means including a pivotally supported guide member slidably movable over the layers of strips that have been wound on the tube, and means for switching the directions of winding the strips upon arrival of the guide member at the conical portions.