ISSN 1608-4039 (Print)
ISSN 1680-9505 (Online)


nickel

Application of nickel-cobalt alloy in the composite anode to enhance characteristics of tubular SOFCs

The electrochemical characteristics of the tubular solid oxide fuel cells (SOFC) and the symmetrical anodic cells with conventional nickel-cermet and modified nickel-cobalt cermet anodes were studied using voltammetry, electrochemical impedance spectroscopy, and distribution of relaxation time analysis. The tubular SOFC with the modified anode exhibited higher power output and demonstrated lower power loss at reduced temperatures, which is attributed to higher electrical conductivity and lower activation energy of the anodic electrode reaction.

Comparative examination of LiyNixCo1-xO2 materials for lithium-ion battery cathodes

A number of LiyNixCo1-xO2 compounds were synthesised by means of solid-state annealing. The synthesis conditions (the raw components, temperature, duration) were optimized so that phases with y > 0.97 were obtained suitable for making positive electrodes for lithium-ionic batteries. The charge-discharge characteristics of such LiyNixCo1-xO2. electrodes were studied.