Powder for electrode for manufacturing dry electrode for secondary battery, method for preparing the same, method for manufacturing dry electrode using the same, dry electrode, secondary battery including the same, energy storage apparatus

A dry electrode comprising:

• a current collector;
• and
• a dry mixture film laminated on the current collector,
• wherein the dry electrode comprises an active material, a conductive material and a fibrillized binder, and has a flexing resistance of 2-8 mmφ,
• wherein the fibrillized binder is interconnected to particles of the active material and the conductive material,
• wherein the dry mixture film has a porosity of 20-35%,
• wherein the interfacial resistance between the dry mixture film and the current collector is 5 Ω·cm2 or less, and
• wherein the current collector is partially or totally coated with a conductive primer.