Acid doped polybenzimidazoles, a new polymer electrolyte

Book · Sat Dec 31 00:00:00 EST 1994

OSTI ID:33600

Wainright, J S; Wang, J T; Savinell, R F; Litt, M; Moaddel, H; Rogers, C ^[1]

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1. Case Western Reserve Univ., Cleveland, OH (United States)

Polybenzimidazole films doped with phosphoric acid are being investigated as potential polymer electrolytes for use in hydrogen/air and direct methanol fuel cells. The advantages of this electrolyte include good mechanical properties, and low vapor permeability. Combined, these factors allow for the use of thin (< 0.005 cm) membranes in fuel cells without excessive adverse effects from fuel gas crossover to the cathode compartment and subsequent cathode depolarization. In this paper the authors discuss experimental data on the proton conductivity, thermal stability and gas permeability of this material.

• OSTI ID: 33600
• Report Number(s): CONF-940529-; ISBN 1-56677-080-7; TRN: IM9518%%420
• Resource Relation: Conference: 185. Electrochemical Society meeting, San Francisco, CA (United States), 22-27 May 1994; Other Information: PBD: 1994; Related Information: Is Part Of Electrode materials and processes for energy conversion and storage. Proceedings Volume 94-23; Srinivasan, S. [ed.] [Texas A and M Univ., College Station, TX (United States). Energy Research Center]; Macdonald, D.D. [ed.] [Pennsylvania State Univ., University Park, PA (United States)]; Khandkar, A.C. [ed.] [Ceramatec, Salt Lake City, UT (United States)]; PB: 517 p.
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
SOLID ELECTROLYTE FUEL CELLS
MEMBRANES
BENZIMIDAZOLES
IONIC CONDUCTIVITY
THERMODYNAMIC PROPERTIES
MECHANICAL PROPERTIES
ORGANIC POLYMERS
HYDROGEN FUEL CELLS
SOLID ELECTROLYTES
ALCOHOL FUEL CELLS
DOPED MATERIALS
THERMAL STRESSES
EXPERIMENTAL DATA