Abstract: An electrode according to an embodiment contains an electrode mixture layer containing an active material and a conductive assistant. In a logarithmic differential pore volume distribution by a mercury intrusion method, the electrode mixture layer satisfies: a ratio P1/P2 within a range of 2 or more and less than 8, and a ratio S1/S2 within a range of 3 or more and less than 10. P1 is a value of a maximum logarithmic differential pore volume in a pore diameter range of 0.1 ?m or more and 1 ?m or less. P2 is a value of a logarithmic differential pore volume of a pore diameter of 0.03 ?m. S1 is an integrated value in a pore diameter range of 0.1 ?m or more and 1 ?m or less. S2 is an integrated value in a pore diameter range of more than 0 ?m and less than 0.1 ?m.

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery that includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The separator is disposed between the positive electrode and the negative electrode. The separator includes a fiber-made nonwoven fabric having a tortuosity of 1.8 to 3 and a vacancy of 40% to 60%. The negative electrode has an operating potential of 0.7 V or more with respect to the potential of metallic lithium.

Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer including a titanium-containing oxide. A logarithmic differential pore volume distribution curve of the separator obtained by a mercury intrusion method includes a first peak at which a pore diameter is in the range from 0.02 ?m to 0.15 ?m and second peak at which the pore diameter is in the range from 1.5 ?m to 30 ?m. A ratio P2I/P1I of a second peak intensity to a first peak intensity is more than 1.00 and not more than 3.00. The pore specific surface area of the separator is 70 m2/g or more.

Abstract: An electrode according to an embodiment contains an electrode mixture layer containing an active material and a conductive assistant. In a logarithmic differential pore volume distribution by a mercury intrusion method, the electrode mixture layer satisfies: a ratio P1/P2 within a range of 2 or more and less than 8, and a ratio S1/S2 within a range of 3 or more and less than 10. P1 is a value of a maximum logarithmic differential pore volume in a pore diameter range of 0.1 ?m or more and 1 ?m or less. P2 is a value of a logarithmic differential pore volume of a pore diameter of 0.03 ?m. S1 is an integrated value in a pore diameter range of 0.1 ?m or more and 1 ?m or less. S2 is an integrated value in a pore diameter range of more than 0 ?m and less than 0.1 ?m.

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery that includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The separator is disposed between the positive electrode and the negative electrode. The separator includes a fiber-made nonwoven fabric having a tortuosity of 1.8 to 3 and a vacancy of 40% to 60%. The negative electrode has an operating potential of 0.7 V or more with respect to the potential of metallic lithium.