| abstract |
The present invention provides vinylidene fluoride particles that provide an adhesive layer that has sufficient adhesiveness and can reduce clogging of pores on the surface of a separator even after a hot pressing process. The core-shell type particle of the present invention includes a core part and a shell part surrounding the core part, the core part contains a first polymer having a structural unit derived from vinylidene fluoride as a main structural unit, and the shell part contains A second polymer having a structural unit derived from vinylidene fluoride as a main structural unit, the second polymer further comprising a structural unit derived from a compound represented by the following formula (1), derived from the following formula (2 ) and at least any one of the structural units derived from the compound represented by the following formula (3). [chemical formula 1] |