Patent ID: 11873363
Assignee: ZEON CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A binder composition for a non-aqueous secondary battery electrode comprising a polymer and a solvent, wherein
the polymer is a block copolymer including an aromatic vinyl monomer unit and an aliphatic conjugated diene monomer unit having a carbon number of 5 or more,
a structure of the block copolymer constituting the polymer includes a diblock structure,
a proportion constituted by the block copolymer having the diblock structure among the entire polymer is 10 mass % or more and 20 mass % or less,
a proportion constituted by the aliphatic conjugated diene monomer unit having the carbon number of 5 or more in the polymer when an amount of all monomer units in the polymer is taken to be 100 mass % is 70 mass % or more and 84 mass % or less,
the structure of the block copolymer constituting the polymer further includes a symmetric triblock structure,
a proportion constituted by copolymer having the symmetric triblock structure among the entire polymer is 80 mass % or more and 90 mass % or less, and
the binder composition for non-aqueous secondary battery electrode is a latex of the block copolymer.