Method for producing battery electrode

摘要

A main object of the present invention is to provide a method for producing a battery electrode that has excellent adhesion between a collector and an active material layer by suppressing a migration phenomenon. The method for producing a battery electrode of the present invention is a method for producing a battery electrode 30 that has a structure in which an active material layer 20 that includes an active material 22 is held on a collector 10. The method includes a step of applying, onto the collector 10, an active material layer forming paste that contains the active material 22 and polymer materials 24, 26 in a solvent; and a step of drying the applied paste coat material, to form thereby the active material layer 20 on the collector 10. Fibrillated polymer fibers 26 are used as at least one of the polymer materials 24, 26.

主权项

1. A method for producing a battery electrode that has a structure in which an active material layer including an active material is held on a collector,
the method comprising: fibrillating cellulosic fibers by a pulverization pressure ranging from 0.015 MPa to 3.5 MPa, preparing an active material layer forming paste by mixing an active material and the fibrillated cellulosic fibers in a solvent, applying the active material layer forming paste onto the collector, and forming an active material layer on the collector by drying the applied paste.