BINDER COMPOSITE FOR SECONDARY BATTERY ELECTRODE, SLURRY FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY ELECTRODE

摘要

PPROBLEM TO BE SOLVED: To provide a binder composite for a secondary battery electrode excellent in adhesion to a collector, whereby a secondary battery causing little capacity drop in high speed discharge and having excellent output characteristics can be manufactured. PSOLUTION: This binder composite for the secondary battery electrode contains (A) a polymer in which the content of THF gel is not more than 5%, and an organic solvent having (B) N-methyl pyrrolidone as a main component. Its second virial coefficient measured by a static light scattering method is not more than 310SP-5/SPcmSP3/SPmol/gSP2/SP, and the radius of rotation of the (A) polymer is 10-500 nm. PCOPYRIGHT: (C)2007,JPO&INPIT