Conductive composite material

A conductive composite material comprising:

• particles of a layered material including one or plural layers, wherein the one or plural layers include a layer body represented by:
• MmXn
• where M is at least one metal of Group 3, 4, 5, 6, or 7,
• X is a carbon atom, a nitrogen atom, or a combination thereof,
• n is not less than 1 and not more than 4,
• m is more than n but not more than 5, and
• a modifier or terminal T exists on a surface of the layer body, where T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, or a hydrogen atom;
• and
• a polymer material that includes a hydrogen acceptor that is at least one selected from the group consisting of a fluorine atom, a chlorine atom, an oxygen atom, or a nitrogen atom;
• and a hydrogen donor that is a hydroxyl group and/or a secondary amino group,
• wherein a ratio of the particles of the layered material to the conductive composite material is more than 19% by volume but not more than 95% by volume, and
• wherein the polymer material is a polymer having a unit derived from a (meth)acryloyl group.