Nickel-Metal-Hydride Batteries For Electric Cars? Energy Density Can Rise 10-Fold: Researchers

The division is pretty clear: nickel-metal-hydride batteries are for use only in hybrids–at least those from Toyota, which has used more of the batteries than any other maker by far. Lithium-ion cells, on the other hands, are the only ones with sufficient energy density to be used in the much larger packs of battery-electric and plug-in hybrid… …read more