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Metal Hydride Fuel Cell with Intrinsic Capacity by D. Chartouni; N. Kuriyama; T. Kiyobayashi; J. Chen is a Engineering article available to read on EtoBox.

What is Metal Hydride Fuel Cell with Intrinsic Capacity about?

An alkaline metal hydride (MH) fuel cell with built-in energy storage was constructed and its performance was examined. The cell employed a bifunctional air-cathode using a La0:6Ca0:4CoO3 perovskite catalyst. The anode contained the intermetallic compound MmNi3:5Co0:7Al0:7Mn0:1 as the active material. The cell voltage at 20 mA=cm 2 was 0:65 V (air) and 0:78 V (oxygen). Using air, 12 mW=cm 2 of continuous power was delivered from the fuel cell for almost 1000 h. A maximum power output of 34 mW=cm 2 (oxygen) was measured. The system acts as a fuel cell with built-in capacity because the hydrogen fuel in the anode is stored as MH. The H2-rechargeable MH-electrode showed an attractive recharge rate suitable for practical use: 87% of the full capacity was recharged within 58 min. By using a bifunctional air-electrode the MH-electrode can also be recharged electrochemically. The fuel cell can therefore be regarded as a battery which is rechargeable like a normal secondary cell, but which has the advantage of also being rechargeable with hydrogen gas.

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Author

D. Chartouni; N. Kuriyama; T. Kiyobayashi; J. Chen

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

2002

Language

EN

Field

Engineering (Physical Sciences)