This bibliography includes 1392 citations of domestic and foreign reports, journal articles, patents, conference papers and proceedings and books. The citations were taken from the DOE Energy Data Base covering the period March 1985 through February 1988. These citations are arranged in the following six subject categories: general; design and development; performance testing; materials, components, and auxiliaries; applications; and electrochemistry, mass transfer, and thermodynamics. Within each category, the report citations are arranged alphanumerically by report numbers, and nonreport literature citations are arranged in reverse chronological order. Indexes are provided for corporate author, personal author, subject, contract number, and report number. (AT)