Patent ID: 8597829

Claim:
A nonaqueous electrolyte secondary battery comprising: a cylindrical shaped battery outer can; and a rolled electrode assembly formed by rolling a positive electrode plate and a negative electrode plate with a separator interposed therebetween to insulate each other, the positive electrode plate including a positive electrode substrate in which both sides of the positive electrode substrate is coated with a positive electrode active material mixture, the negative electrode plate including a negative electrode substrate in which both sides of the negative electrode substrate is coated with a negative electrode active material mixture, the rolled electrode assembly being put into the battery outer can, the separator being placed on an outermost periphery of the rolled electrode assembly, the separator being fixed on the outermost periphery of the rolled electrode assembly with an adhesive tape for fixing a roll end, an exposed portion of the negative electrode substrate without a negative electrode active material mixture layer being placed on an outermost periphery side of the negative electrode plate, a negative electrode tab being connected to the negative electrode substrate on the outermost periphery side, and the adhesive tape for fixing a roll end of the separator does not extend beyond and cover the roll end point of the positive electrode substrate and a roll end point of the negative electrode substrate.