T. Ise et al., The effect of particle size on the electrochemical properties of hydrogen absorbing alloy electrodes, J ALLOY COM, 298(1-2), 2000, pp. 310-318
The investigation of the effect of the particle size of hydrogen-absorbing-
alloys on the electrochemical propel ties of electrodes revealed that the e
lectrochemical reactivity of small-particle electrodes containing conductiv
e powder was excellent, but that the discharge capacity of the alloy electr
odes composed of small particles containing no conductive powder was small.
A possible reason for this reduced capacity is the existence of particles
that cannot be discharged due to weak contact between the particles as the
volume of the alloy changed. Thus. batteries made from electrodes composed
of particles larger than 25 mu m were found to have superior charge-dischar
ge cycle characteristics. (C) 2000 Elsevier Science S.A. All rights reserve
d.