Finally, economic performance and environmental advantages. As a relatively mature product, nickel-metal hydride batteries have a much lower manufacturing cost than lithium batteries. In addition, the quality control of nickel-metal hydride batteries is very difficult, and the yield of nickel-metal hydride batteries produced is much higher than that of lithium batteries. Therefore, under the combined effect of manufacturing cost and high yield, NiMH batteries are more economical. In addition, nickel-hydrogen batteries do not contain harmful substances and are relatively friendly to the environment. At the same time, because the components of nickel-hydrogen batteries contain rare earths, they can also be recycled, which is more environmentally friendly than lithium batteries.
