| abstract |
The non-aqueous electrolyte lithium secondary battery that the present invention obtains, possess separator and have inorganic filler and binding agent and form the porous layer on the surface of this separator, the thickness of separator is 12 μ m～18 μ m, the thickness of separator The porosity is 52%-67%, the thickness of the porous layer is 3μm-15μm, the porosity of the porous layer is 44%-70%, and the membrane resistance when the separator is impregnated with electrolyte is below 1.35Ω·cm 2 . |