CONSOLIDATED POROUS SHEET, MANUFACTURING METHOD THEREOF, NONAQUEOUS SECONDARY BATTERY SEPARATOR, NONAQUEOUS SECONDARY BATTERY, AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a consolidated porous sheet that has high safety at high temperatures, has continuous production aptitude in a manufacturing process of a product, and improves manufacturing efficiency.

SOLUTION: A consolidated porous sheet includes porous sheets 11 and 21 in which a porous base material including polyolefin and a heat-resistant porous layer including a heat-resistant resin are laminated. In the porous sheets 11 and 21, heat-resistant porous layers facing for bending are connected at connection portions 15a and 15b, and 25a and 25b that are formed by thermal fusion, and the porous sheets 11 and 21 are further connected at a connection portion 27 formed by the thermal fusion.

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