According to USABC and Japanese companies' comparison and demonstration of the performance and development potential of various electric vehicle batteries, considering the reliability, safety, resource and environmental problems of battery materials and the development trend of battery performance, it is determined that Ni-MH batteries are The first driving force lithium battery for electric vehicles in the near and mid-term. Hybrid electric vehicles (HEV) mainly use nickel-metal hydride batteries, and a very small amount of lithium-ion batteries are used. Due to relatively mature technology and long-term technology application precipitation, it does not need auxiliary infrastructure and has advantages in energy saving and high efficiency. PHEV/EV is still in the early stage of market development and is more suitable for point-to-point transportation methods rather than passenger cars.

Hybrid vehicles are the first to realize industrialized production of other types of new energy vehicles. According to the data of Fuji Economic Research Institute in Japan, the HEV market grew rapidly in 2012, the demand declined in 2013, and the demand will be stable in the next few years. In 2020, the global annual output of hybrid vehicles will reach more than 3.75 million, and the number of hybrid vehicles will reach more than 10 million. More than 3 million sets of nickel-metal hydride power lithium batteries are needed for vehicles. Based on the calculation of 10Kg for each HEV, more than 30,000 tons of hydrogen storage alloys will be required in 2020.

The tight supply of petrochemical energy makes nickel-metal hydride batteries have great potential for development in emerging fields such as new energy vehicles, wind power storage and solar energy storage, and the prospect is very bright. In the next few decades, Ni-MH batteries will continue to maintain a huge application space.

The production of large-size automotive nickel batteries is all concentrated in Japan, but with the gradual acceleration of the industrialization of domestic supporting large-size automotive nickel-hydrogen batteries, the market demand for hydrogen storage alloys will be expanded. In recent years, people have paid more and more attention to issues such as urban air quality and the earth's oil resource crisis, and the calls for environmental protection and energy conservation have become increasingly louder, prompting people to attach great importance to the development of electric vehicles and related technologies. Listed as a major special project, organize research and development groups led by major automobile manufacturing groups to devote themselves to the development of electric vehicles, among which hybrid vehicles will be industrialized during the Tenth Five-Year Period.

In 2014, the global shipment of electric vehicles was 2.36 million, of which HEV shipments were 2.15 million, accounting for 91% of the total shipments, of which nickel-metal hydride HEV electric vehicle shipments were 1.35 million, accounting for 63% of total HEV shipments. Our country should actively launch a strategy to encourage nickel-metal hydride battery hybrid electric vehicles, so that it is possible to be at the global leading level in the development and application of new energy vehicles, and truly achieve the purpose of reducing emissions and improving the environment. At the same time, positive policies and institutional plans are being made for the recycling and reuse of nickel-metal hydride batteries.