Method of producing electrode for electricity storage device

摘要

A method of producing an electrode for an electricity storage device includes producing a paste to form an electrode active material layer, in which aggregates of a solids fraction material that contains at least an electrode active material and a binder are dispersed in a solvent, coating the paste on a surface of a current collector, and drying the current collector coated with the paste, to form the electrode active material layer formed of the solids fraction material. The paste is produced in such a manner that a content ratio of the solids fraction material in the paste is 60 to 80 mass %, an abundance ratio for the aggregates with a particle size that is equal to or smaller than 20 μm is at least 99%, and a viscosity at 25° C. and a shear rate of 40 s−1 is 200 to 5,000 mPa·s.

主权项

1. A production method for an electrode for an electricity storage device, comprising:
producing a paste to form an electrode active material layer, in which aggregates of a solids fraction material that contains at least an electrode active material and a binder are dispersed in a solvent; coating the paste on a surface of a current collector; and drying the current collector coated with the paste, to form the electrode active material layer formed of the solids fraction material, wherein the paste is produced in such a manner that a content ratio of the solids fraction material in the paste is 60 to 80 mass %, an abundance ratio for the aggregates with a particle size that is equal to or smaller than 20 μm is at least 99%, and a viscosity at 25° C. and a shear rate of 40 s−1 is 200 to 5,000 mPa·s.