Gold-plated nickel is also used in batteries, including nickel-hydrogen batteries, cadmium-nickel batteries and nickel-manganese batteries. In recent years, the most rapid development is the application of increasingly practical mhx-ni battery, its advantages are non-toxic green pollution, battery reserves than nickel-cadmium battery more than 30%, lighter than nickel-cadmium battery, longer service life, the disadvantage is more expensive than nickel-cadmium battery, performance than lithium battery poor. It is mainly used in mobile communication, notebook, video recorder and other fields and also used in military industry, national defense, high-tech and other fields. Cars powered by such batteries are already on the market.
Nickel metal hydride batteries in the world are mainly produced by Chinese and Japanese enterprises, accounting for more than 95% of the global output, and more than 70% of them are produced in China. Chinese nickel metal hydride battery enterprises mainly include chaoba, haopeng, byd, huanyu, corun, licoxing, sanpu, disheng, sanjie, liangneng, greep and so on. Japanese companies panasonic, yuasa and sanyo have moved production of small nickel metal hydride batteries to China. Large HEV nickel metal hydride batteries are mainly produced in Japan by Primearth electric vehicle energy company (PEVE) and sanyo electric motor, while panasonic's xiangnan factory was sold to China corun due to the merger of panasonic and sanyo. Therefore, large nickel metal hydride batteries have been mainly produced by panasonic.
China's nickel metal hydride battery growth is sluggish, in recent years, the output value of products, production did not exceed the peak in 2008. In 2011, the output value and output of nickel metal hydride batteries were 5.5 billion yuan and 950 million yuan respectively, down 15.38% and 26.36% respectively compared with 2008. The reduction of product scale makes nickel-metal hydride batteries less economies of scale. The future situation is worrying, and its development space still depends on the application of hybrid electric vehicles.