| abstract |
TECHNICAL FIELD [0001] The present invention relates to a lithium ion conductive composite organic separator and a secondary battery comprising the same, wherein the lithium ion conductive composite organic separator comprises a porous polymer base material having a plurality of pores and a part or all of the pores in the porous polymer base material , And has a Gurley number of 10,000 sec / 100cc or more. In the lithium ion conductive composite organic separator, the separator passage of the electrolytic solution is cut off, and only lithium ions can pass therethrough, so that the growth of lithium dendrites is blocked in the secondary battery using the lithium metal electrode. As a result, The efficiency can be increased. |