Case 2: Magnesium-containing electrodes for low-cost NiMH batteries

The negative electrode in the NiMH battery is a metal hydride electrode. The most common material used in the negative electrode is a rare earth-based AB5 alloy, where A is a rare earth mixture (La,Ce,Pr,Nd) and B is a mixture of transition metals(Ni,Co,Mn,Al).  IFE investigates new low-cost La-Mg-Ni hydrogen storage alloys for hydrogen storage and battery application. Figure 4 exhibits the discharge performance of this new low cost alloy compared with a commercial AB5 alloy.

Comparison of the discharge performanceFigure 4. Comparison of the discharge performance.