Resin composition, separator for non-aqueous electrolyte secondary battery and production method therefor, and non-aqueous electrolyte secondary battery

摘要

The present invention provides a resin composition comprising the following resin (a) and filler particles. The use of this composition makes it possible to obtain a separator having excellent heat resistance. Resin (a): a polymer which comprises a structural unit represented by a formula (1), and which has a weight average molecular weight of 200000 to 500000, provided that the polymer does not comprise a structural unit represented by a formula (2),;
wherein, Mn+ represents a metal ion, and n represents the valence thereof,
;

主权项

1. A resin composition comprising the following resin (a) and filler particles:
resin (a): a polymer which comprises a structural unit represented by a formula (1), and which has a weight average molecular weight of 200000 to 500000, provided that the polymer does not comprise a structural unit represented by a formula(2); wherein, Mn+ represents a metal ion, and n represents the valence thereof; and wherein a content of the structural unit represented by the formula (1) in the resin (a) is 90% by mole or more with respect to a total content of all structural units constituting the resin (a)