| abstract |
The present invention relates to (a) a unit derived from a vinyl monomer, (b) a unit derived from a conjugated diene monomer or a conjugated diene polymer, and (c) a (meth) acrylate ester unit. A copolymer binder containing at least one unit selected from the group consisting of units derived from monomers and (d) a unit derived from a water-soluble polymer, wherein the copolymer binder has 0 The present invention relates to a binder composition for a secondary battery having a wet strength of not less than 0.02 MPa, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery. |