| 摘要 |
The present invention relates to a porous separation membrane for a secondary battery and a manufacturing method thereof. The porous separation membrane has improved heat-resistant stability by coating a polyvinylidene fluoride nanoweb, provided by electrospinning polyvinylidene fluoride (PVDF) on a polyolefin base material, with inorganic slurry composed of inorganic particles and binder with a casting method in order to solve the problem of low heat-resistant stability of the separation membrane for a lithium secondary battery, the separation membrane being made of an existing polyolefin film. |
