ACTIVE MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY

摘要

An active material having a high capacity for negative electrodes of nonaqueous secondary batteries is provided by firing a composite resin (A) that has a silanol group and/or a hydrolyzable silyl group, a polysiloxane segment (a1) and a polymer segment (a2) other than the polysiloxane segment (a1); and a negative electrode using the active material and a nonaqueous secondary battery having the negative electrode are also provided. In addition, an active material having a high capacity for negative electrodes of nonaqueous secondary batteries is provided by firing a dispersion liquid which contains the composite resin (A), silicon particles and an organic solvent; and a negative electrode using the active material and a nonaqueous secondary battery having the negative electrode are also provided.