Abstract: A non-aqueous electrolyte secondary battery including an electrode body in which a positive electrode plate including a belt-shaped positive electrode current collector and a positive electrode active material layer formed on a surface of the positive electrode current collector and a negative electrode plate including a belt-shaped negative electrode current collector and a negative electrode active material layer formed on a surface of the negative electrode current collector are wound with an insulating separator interposed there between. At the outermost periphery of the electrode body, a negative electrode current collector exposed portion, in which the negative electrode current collector is exposed, is provided, and a winding-finish end of the negative electrode plate is fixed with tapes attached to the negative electrode current collector exposed portion.

Abstract: A nonaqueous electrolyte secondary battery has both high capacity and high regeneration. A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a Ni-containing lithium transition metal oxide having a layered structure and also contains a tungsten compound and/or a molybdenum compound. The percentage of Ni is greater than 90 mole percent with respect to the molar amount of the lithium transition metal oxide. The amount of the compound is 0.1 mole percent to 1.5 mole percent with respect to the molar amount of the lithium transition metal oxide in terms of tungsten element and/or molybdenum element.

Abstract: A nonaqueous electrolyte secondary battery has both high capacity and high regeneration. A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a Ni-containing lithium transition metal oxide having a layered structure and also contains a tungsten compound and/or a molybdenum compound. The percentage of Ni is greater than 90 mole percent with respect to the molar amount of the lithium transition metal oxide. The amount of the compound is 0.1 mole percent to 1.5 mole percent with respect to the molar amount of the lithium transition metal oxide in terms of tungsten element and/or molybdenum element.