Ceramic fuel cells for stationary and mobile applications

Journal Article · Sat Nov 01 04:00:00 UTC 2003 · American Ceramic Society Bulletin

OSTI ID:15006562

Singhal, Subhash C ^[1]

---

1. BATTELLE (PACIFIC NW LAB)

Fuel cells are newsworthy because of high gasoline prices and concern about the environment. Several questions arise when fuel cells are discussed: - What are fuel cells? - What is the current status of fuel cells? - What fuel cell designs are being pursued by various organizations worldwide? - What are the advantages and disadvantages of the various fuel cell designs? - What size power systems have been produced and how well have they operated? Fuel cells are electrochemical energy conversion devices that directly convert chemical energy of a fuel to electricity, without combustion of the fuel. In this sense, they are similar to batteries. However, unlike a battery, where life is limited by the amount of chemical that is stored in it, fuel cells produce electricity as long as fuel is supplied. Thus, one might say that fuel cells are continuous batteries. Like batteries, there are many types of fuel cells: - Polymer electrolyte fuel cells are the most commonly discussed in the general interest media--newspapers, magazines and television. These fuel cells operate at {approx}90 degrees C and are the primary candidates for use in automobiles. - Alkaline fuel cells have been used in our space program since the early days of the Gemini and Apollo missions. - Phosphoric acid fuel cells are currently the most advanced on the market and are being commercialized by a division of United Technologies. - Solid oxide fuel cells (SOFCs) are based on zirconia electrolyte. This article concentrates on ceramic SOFCs.

• Research Organization: Pacific Northwest National Lab., Richland, WA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15006562
• Report Number(s): PNNL-SA-40231; AA2525000
• Journal Information: American Ceramic Society Bulletin, Journal Name: American Ceramic Society Bulletin Journal Issue: 11 Vol. 82; ISSN ACSBA7; ISSN 0002-7812
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
24 POWER TRANSMISSION AND DISTRIBUTION
30 DIRECT ENERGY CONVERSION
AUTOMOBILES
BATTERIES
CERAMICS
COMBUSTION
ELECTRICITY
ELECTROCHEMICAL ENERGY CONVERSION
FUEL CELLS
FUEL EFFICIENCY
GASOLINE
MARKET
PHOSPHORIC ACID
PLANAR
POWER SYSTEMS
PRICES
PROTON EXCHANGE MEMBRANE FUEL CELLS
SOLID OXIDE FUEL CELLS
TELEVISION