Method for manufacturing electrode sheet and electrode sheet

A method for manufacturing an electrode sheet comprising the steps of:

• forming a granulated material comprising a plurality of granules;
• forming an electrode mixture layer by molding the granulated material into a sheet;
• and
• placing the electrode mixture layer on electrode current collector foil,
• the step of forming the granulated material comprising the steps of:
• forming granules comprising at least an electrode active material and a binder;
• adding a polyglycerol fatty acid ester to the granules, and
• adhering the polyglycerol fatty acid ester to a surface of the granules to form the granulated material.