To provide a non-aqueous electrolyte secondary battery adapted to prevent
an internal short circuit between an positive electrode and a negative
electrode caused by the penetration of electrically conductive micro
particles through a separator, which occurs when winding up electrodes,
and manufacturing methods of an electrode used therein, whereby the
non-aqueous electrolyte secondary battery having a coiled electrode
assembly is formed through the multilayer winding of an positive
electrode 90 having a metallic collector 76 coated with an positive
electrode mixture 78 composed of an positive electrode active material
that occludes and liberates lithium ions, a negative electrode 86 having
a metallic collector 82 coated with a negative electrode mixture 84,
composed of a negative electrode active material that occludes and
liberates lithium ions, and a separator 72 interposed between the
positive electrode and the negative electrode, wherein the positive
electrode 90 has an insulating layer 100 formed by means of the dried
coating method, the heat seal tape method, or the hot melt coating method
on a portion of the metallic collector 76 which is uncoated with the
positive electrode mixture 78 and opposed to the negative electrode 86
coated with the negative electrode mixture 84, through the separator 72.