Ni-Doped Carbons as a Carbon Support for Metal Hydride Electrodes

JORGE E. THOMAS; RITA M. HUMANA; L. ZUBIZARRETA; ANA ARENILLAS; J. A. MENÉNDEZ; HUGO L. CORSO; ARNALDO VISINTIN

ENERGY & FUELS (PRINT)

AMER CHEMICAL SOC

Lugar: Washington, DC ; Año: 2010 vol. 24 p. 3302 - 3306

0887-0624

In-lab synthesized Ni-doped carbon xerogels were used as a carbon support to study the possibility to improve the electrochemical behavior of AB5-type alloy electrodes for nickel/metal hydride rechargeable batteries. The carbons used for this work were synthesized by polymerization of resorcinol and formaldehyde. These carbon supports were mixed with an AB5-type alloy. For the electrochemical characterization  of the electrodes, charge and discharge techniques, a high rate of discharge, and electrochemical impedance spectroscopy were used. Results show that this kind of carbon could be used as a support for hydrogen storage electrodes with good electrochemical behavior and kinetic response.