Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2013-05-15

Journal: Advanced Materials Research

Included Journals: Scopus、EI

Volume: 773

Page Number: 171-174

ISSN: 9783037857908

Abstract: Poly(phthalazinone ether ketone) anion exchange membranes with pyridinium groups (PyPPEK) for vanadium redox flow battery were prepared from chloromethylated poly(phthalazinone ether ketone) and pyridine. The chemical structure of PyPPEK was characterized by using FT-IR spectrum. Compared with quaternary ammonium group containing poly(phthalazinone ether ketone), PyPPEK membrane showed low ion exchange capacity, low swelling ratio and comparable tensile strength. Columbic efficiencies of VRB with anion exchange membranes were higher than that of VRB with Nafion117 membrane. When the ion exchange capacity of PyPPEK membrane was 1.40 mmol&middotg-1, energy efficiency of VRB with the membrane was higher than that of VRB with Nafion117 membrane at charge-discharge current densities ranging from 20 mA&middotcm-2 to 50 mA&middotcm-2. © (2013) Trans Tech Publications, Switzerland.