K. Naito et al., FACTORS AFFECTING THE CHARACTERISTICS OF THE NEGATIVE ELECTRODES FOR NICKEL-HYDROGEN BATTERIES, Journal of Applied Electrochemistry, 23(10), 1993, pp. 1051-1055
The multicomponent hydrogen storage alloy with composition MmNi3.31Mn0
.37Al0.28Co0.64 was used as a negative electrode material. After packi
ng the alloy particles in a porous nickel substrate, press forming was
carried out to bond them. The effects of particle size and forming pr
essure on electrode performance were examined in 6 M KOH solution. The
electrochemical properties of the negative electrode, such as dischar
ge capacity and high-rate dischargeability, were remarkably improved b
y increasing the alloy particle size and forming pressure.