In a porous membrane for a secondary battery including non-conductive particles and a water-soluble polymer, as the water-soluble polymer, a copolymer including 15% to 50% by weight of an ethylenically unsaturated carboxylic acid monomer unit, 30% to 80% b...

A secondary battery porous membrane, manufactured by a slurry for secondary battery porous membrane, which is superior in coating priority and dispersibility of non-conductive organic particles, which improves cycle characteristic of the obtained secondary...