Page 296 - Handbook of Battery Materials

266 9 Metal Hydride Electrodes

the composition is designed to provide a bulk hydride-forming phase (or phases)
but which will form, in situ, a corrosion-resistant surface of semi-passivating oxide
(hydroxide) layers. Lattice expansion is usually reduced relative to the AB 5 hydrides
because of a lower V H . Pressure–composition isotherms of complex AB 2 electrode
materials indicate nonideal behavior.

Acknowledgment

The author wishes to acknowledge the support of Brookhaven National Laboratory
operating under contract No. DE-AC02-98CHI-886 with the Department of Energy.
Further thanks are due to John R. Johnson and Claire Reilly for proof-reading the
manuscript and for offering many helpful suggestions.

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