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Science 9 April 1993:
Vol. 260. no. 5105, pp. 176 - 181
DOI: 10.1126/science.260.5105.176
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Articles

A Nickel Metal Hydride Battery for Electric Vehicles

S. R. Ovshinsky 1, M. A. Fetcenko 1, and J. Ross 2

1 Energy Conversion Devices, Inc., 1675 West Maple Road, Troy, MI 48084
2 Chemistry Department, Stanford University, Palo Alto, CA 94305, and consultant to Energy Conversion Devices, Inc.

Widespread use of electric vehicles can have significant impact on urban air quality, national energy independence, and international balance of trade. An efficient battery is the key technological element to the development of practical electric vehicles. The science and technology of a nickel metal hydride battery, which stores hydrogen in the solid hydride phase and has high energy density, high power, long life, tolerance to abuse, a wide range of operating temperature, quick-charge capability, and totally sealed maintenance-free operation, is described. A broad range of multi-element metal hydride materials that use structural and compositional disorder on several scales of length has been engineered for use as the negative electrode in this battery. The battery operates at ambient temperature, is made of nontoxic materials, and is recyclable. Demonstration of the manufacturing technology has been achieved.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Rechargeable Lithium Batteries with Aqueous Electrolytes.
W. Li, J. R. Dahn, and D. S. Wainwright (1994)
Science 264, 1115-1118
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