Abstract: The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.

Abstract: According to one embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. A positive electrode layer contains lithium-manganese composite oxide represented by a general formula of LiMn2-xMxO4. x is within the range of 0.22?x?0.7 and M is at least one element selected from a group consisting of Mg, Ti, Cr, Fe, Co, Zn, Al, and Ga. A negative electrode layer contains lithium titanate. A pore specific surface area of the positive electrode layer is 2 m2/g or more and less than 5 m2/g. A ratio of a capacity per pore surface area of the positive electrode to the negative electrode is within the range of 1 or more and less than 2.4.

Abstract: According to one embodiment, there is provided a battery including a positive electrode, and a negative electrode. The positive electrode contains a lithium-cobalt composite oxide and a lithium-manganese composite oxide. The negative electrode contains a lithium titanium composite oxide. The battery satisfies the following formula (1). In addition, an open circuit voltage (OCV) of the positive electrode when the battery is discharged to 1.8 V at 0.2 C is 3.6 V (Li v.s. Li+) or more. (Qp/Qn)>1.1??(1) Qp is a charge capacity (mAh/m2) of the positive electrode per unit area, and Qn is a charge capacity (mAh/m2) of the negative electrode per unit area.

Abstract: According to one embodiment, there is provided a positive electrode including a positive electrode active material-including layer including a positive electrode active material, which includes a lithium-manganese oxide LiMn2-xMxO4, and a conductive agent. In the positive electrode active material-including layer, an average particle diameter d50 is within 2 ?m to 5 ?m, a particle diameter d10 and a particle diameter d90, where a cumulative frequency from a smaller side is, respectively, 10% and 90%, is within 0.5 ?m to 3 ?m and within 4 ?m to 10 ?m, respectively, in a particle size distribution. X, represented by X=(d50?d10) /d50 is within 0.4 to 0.8. Y, represented by Y=(d90?d50)/d90 is within 0.2 to 0.6.

Abstract: In general, according to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode current collector and a positive-electrode-mixture layer formed on the positive electrode current collector. The positive-electrode-mixture layer includes first pores and second pores. Pore size diameters D1 and D2 of the first and the second pores satisfy relationship: 0.03<D1/D2<0.8. Total volumes V(D1) and V(D2) of the first and the second pores satisfy the following relationship: 2<log V(D1)/log V(D2)<6.

Abstract: According to one embodiment, there is provided a battery including a positive electrode, and a negative electrode. The positive electrode contains a lithium-cobalt composite oxide and a lithium-manganese composite oxide. The negative electrode contains a lithium titanium composite oxide. The battery satisfies the following formula (1). In addition, an open circuit voltage (OCV) of the positive electrode when the battery is discharged to 1.8 V at 0.2 C is 3.6 V (Li v.s. Li+) or more. (Qp/Qn)>1.1??(1) Qp is a charge capacity (mAh/m2) of the positive electrode per unit area, and Qn is a charge capacity (mAh/m2) of the negative electrode per unit area.

Abstract: A chemical substance sensing element 142 for detecting a specific chemical substance included in biological information includes a carbon nanostructure and, because of metal complex or a fluorescent molecule modifying its surface, exhibits substance selectivity and high sensitivity. Of the substances modifying the surface of carbon nanostructures, CoPc reacts with NO and pentane and DAF-2 reacts with NO, as the components contained in the biological information, respectively, and both produce reaction products. The reaction product derived from CoPc changes electric resistance between nodes 154 and 156, and the reaction product derived from DAF-2 generates fluorescence of a specific wavelength when irradiated with excitation light. Therefore, by measuring the change in electric resistance or presence/absence and wavelength of fluorescent of the present element, sensing of NO or pentane is possible.

Abstract: A chemical substance sensing element 142 for detecting a specific chemical substance included in biological information includes a carbon nanostructure and, because of metal complex or a fluorescent molecule modifying its surface, exhibits substance selectivity and high sensitivity. Of the substances modifying the surface of carbon nanostructures, CoPc reacts with NO and pentane and DAF-2 reacts with NO, as the components contained in the biological information, respectively, and both produce reaction products. The reaction product derived from CoPc changes electric resistance between nodes 154 and 156, and the reaction product derived from DAF-2 generates fluorescence of a specific wavelength when irradiated with excitation light. Therefore, by measuring the change in electric resistance or presence/absence and wavelength of fluorescent of the present element, sensing of NO or pentane is possible.