Patent ID: 7459505
Filing Date: 2008-12-02
Classification: B01D,C08G,C08J,C08L,H01M,Y02E

Abstract:
1. A block copolymer for use as a solid polymer electrolyte, the block copolymer comprising a polymer having formula 1: wherein A is a first polymer segment that is repeated m times to form first polymer block A B is a second polymer segment that is repeated n times to form second polymer block B Y R R T′ i is an integer from 1 to 6; and T Y R R M is a metal, ammonium, or alkylamonium; and j is an integer from 1 to 30; with the proviso that when j>1, the Y 2 between sequential aromatic rings are the same or different: the R 5 , R 6 , R 7 , R 8 , and R 9 on sequential aromatic rings are the same or different, wherein at least one of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , and R 13 is —SO 3 H, —SO 3 − M + , —COOH, —COO − M + , —PO 3 H 2 , —PO 3 H − M + , —PO 3 2− M 2 + , or —PO 3 2− M 2+ ; m, n are each independently an integer from 1 to 200; and p is an integer from 1 to 20; wherein first polymer block A m is bonded to second polymer block B n and the block copolymer is formable into an ion-conductive membrane with the proviso that when i>1, the Y 1 between sequential aromatic rings are the same or different: the T 1 and T′ 1 on sequential aromatic rings are the same or different; the R 1 , R 2 , and R 3 on sequential aromatic rings are the same or different.