This invention provides a non-aqueous electrolyte secondary battery that has high performance and high power. The battery optimizes the insulation structure between its positive and negative pole, and it can maintain primary output characteristic even discharging at high power repeatedly. The non-aqueous secondary battery comprises positive pole, negative pole, micro porous barrier plate made of resin and non-aqueous electrolyte. Setting average ideal capacity of the positive pole is 190~800cm2/Ah, 10~60um thick micro porous temperature-resistant coating is arranged between the barrier plate and at least one side of the positive and negative pole. |