Non-aqueous electrolyte secondary battery

A non-aqueous electrolyte secondary battery, comprising:

• a positive electrode;
• and
• a negative electrode,
• wherein at least any one of the positive and negative electrodes comprising:
• a current collector;
• an active material layer formed on the current collector;
• an electrode tab joined to an exposed portion where the active material layer is not formed and the current collector is exposed;
• and
• an insulating tape covering the electrode tab on the exposed portion,
• wherein the insulating tape has a multilayer structure including an organic material layer mainly composed of an organic material and a composite material layer containing an organic material and an inorganic material;
• the inorganic material in the composite material layer accounts for 20% or more of the weight of the composite material layer;
• and
• the inorganic material includes at least one selected from the group consisting of a metal oxide, a metal nitride, a metal fluoride, and a metal carbide.