Zeon Corporation

Kenji Kuroyanagi

Norikazu Yamamoto

Kazuki Asai

Provided is a laminate for a non-aqueous secondary battery including a substrate and a functional layer that is well adhered thereto. The laminate includes a substrate and a functional layer at one or both sides of the substrate. The functional layer contains non-conductive particles and a binder including a polymer A that includes a fluorine-containing monomer unit. The amount of polymer A in a region up to 20% of thickness of the functional layer from a substrate-side surface thereof is more than 20% and not more than 40% of the total amount of polymer A in the functional layer, and the amount of polymer A in a region up to 20% of thickness of the functional layer from an opposite surface thereof relative to the substrate-side surface is more than 20% and not more than 40% of the total amount of polymer A in the functional layer.

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Tokyo, Japan

Kenji Kuroyanagi