A SECONDARY CELL AND A METHOD FOR PREPARING THE SAME

摘要

The present invention relates to a secondary battery, which comprises: a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material; an electrolyte; and a separation membrane arranged between the positive electrode and the negative electrode. The separation membrane comprises a porous adhesive layer having a plurality of pores bonded to the positive electrode or the negative electrode. The electrolyte is contained inside the pores of the porous adhesive layer. The porous adhesive layer contains an acrylate-acetate copolymer.