ORGANIC SULFUR MATERIAL, ELECTRODE, AND LITHIUM-ION SECONDARY BATTERIES, AND PRODUCING METHOD

Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin is at least one polymer selected from the group consisting of (a) a polymer of at least one selected from the group consisting of acrylate compounds represented by CH═C(R) COOR(wherein, Ris a hydrogen atom or a methyl group, and Ris an alkyl group.) and (b) a polymer of at least one selected from the group consisting of acrylate compounds above and at least one selected from the group consisting of diacrylate compounds represented by CH═C(R)COO—Y—OCO (R) C═CH(wherein, each of Rand Ris the same or different and is a methyl group, etc., Y is a hydrocarbylene group, etc., wherein the hydrocarbylene group may have a substituent selected from a hydroxyl group and an alkyl group.).