| 摘要 |
PURPOSE: A separator for an electrochemical stability is provided to have excellent high temperature stability and to improve a shut down function thereof. CONSTITUTION: A separator for an electrochemical stability(100) comprises a base film(10) with a nonwoven type and a coating layer which consists of a ceramic powder(20), a polymer powder(30), and a polymer binder(40), and is formed on the surface of a non-woven fabric base film. A manufacturing method for the separator comprises: a step of manufacturing a mixed solution by mixing ceramic powder and polymer powder with an acetone solution; a step of manufacturing slurry by mixing the mixed solution and polymer binder; and a step of coating the unwoven fabric base film with the slurry and drying the slurry. |
