A Nickel Metal Hydride Battery for Electric Vehicles

Abstract

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.

Layered double hydroxides of Ni with Cr and Mn as candidate electrode materials for alkaline secondary cells

“…Such a material was obtained by precipitation from a mixed [Ni(II) and Cr(III)] metal nitrate solution. Since the electrochemical activity of electrode materials is enhanced by engineering structural disorder [20] into them, we used the as-prepared gel for electrochemical studies.…”

Hydrogen Storage in Pristine and d10-Block Metal-Anchored Activated Carbon Made from Local Wastes

“…ii) Compression of hydrogen gas in high-pressure tanks raises safety concern issues mainly as results of hydrogen embrittlement effects. Additionally the low gravimetric storage should also be considered if we include the mass of the tank [6]. iii) Physisorption in porous materials, which attracts scientific interests due to its simplicity.…”

Effects of Y Substitution for La on the Microstructure and Electrochemical Properties of LaNi<SUB>3.55</SUB>Mn<SUB>0.4</SUB>Al<SUB>0.3</SUB>Co<SUB>0.75</SUB> Hydrogen Storage Alloys

“…[1][2][3][4][5] In recent years, the research and development of high-power type Ni/MH battery for application in electric vehicles have attracted considerable attentions. The discharge electric current in electric vehicles is much higher than that in portable electronic applications.…”