Adhesive for lithium-ion electrode, electrode for lithium-ion battery and method for manufacturing electrode for lithium-ion battery

A method of producing an electrode for a lithium-ion battery, comprising:

• compressing a mixture of a coated electrode active material and a viscous adhesive for a lithium-ion electrode so as to form an electrode active material layer formed from an unbound product of the mixture containing the coated electrode active material and the viscous adhesive,
• the coated electrode active material including an electrode active material that occludes and releases lithium ions and a coating layer containing a coating resin on at least a portion of a surface of the electrode active material,
• the viscous adhesive for a lithium-ion electrode being a viscous adhesive that allows active materials to adhere to each other in a lithium-ion electrode,
• the viscous adhesive having a glass transition temperature of 60° C. or lower, a solubility parameter of 8 to 13 (cal/cm3)1/2, and a storage shear modulus and a loss shear modulus of 2.0×103 to 5.0×107 Pa as measured in a frequency range of 10−1 to 101 Hz at 20° C.,
• wherein the viscous adhesive is an acrylic polymer essentially containing a constituent unit derived from a (meth)acrylic acid alkyl ester monomer, the proportion of the (meth)acrylic acid alkyl ester monomer in monomers constituting the viscous adhesive is 50 wt % or more based on the total monomer weight, and the proportion of a fluorine-containing monomer is less than 3 wt % based on the total monomer weight.