Nonaqueous electrolyte secondary cell

A nonaqueous electrolyte secondary battery comprising:

• a positive electrode plate including a positive electrode current collector, and a positive electrode active material layer applied onto the positive electrode current collector;
• a negative electrode plate including a negative electrode current collector, and a negative electrode active material layer applied onto the negative electrode current collector;
• an electrode group including the positive electrode plate, the negative electrode plate, and a separator, the positive and negative electrode plates being wound with the separator interposed therebetween;
• and
• a battery can in which the electrode group is housed, wherein
• the positive electrode plate includes
• a first current collector exposed portion where a portion of the positive electrode current collector corresponding to an outermost portion of the electrode group is exposed over a length of greater than or equal to one turn in a winding direction of the electrode group, and
• a second current collector exposed portion where a portion of the positive electrode current collector corresponding to a middle portion of the electrode group is exposed over a length of greater than or equal to one turn in the winding direction, and
• a positive electrode lead is provided on the second current collector exposed portion so as to be connected to an external electrode,
• the second current collector exposed portion is formed within the range of ⅔ L or less from each of inner and outer ends of a portion of the positive electrode plate to which the positive electrode active material layer is applied, where L represents a distance between the inner and outer ends in the winding direction, and
• the middle portion is arranged between the inner and outer ends in the winding direction.