Environmental friendly batteries refer to a type of high-performance, pollution-free battery that has been put into use or is being developed in recent years. Nickel metal hydride batteries and lithium-ion batteries that have been widely used, mercury free alkaline zinc manganese Primary battery and rechargeable batteries that are being promoted, and lithium or lithium-ion plastic batteries and fuel cells that are being developed and developed all belong to this category. In addition, solar cells (also known as photovoltaic power generation) that have been widely used and utilize solar energy for photoelectric conversion can also be included in this category.

　　1. Hydrogen storage materials and nickel metal hydride battery - Nickel–metal hydride battery

　　2. Lithium ion embedded materials and liquid electrolyte lithium-ion batteries

　　3. Polymer electrolyte lithium battery or lithium-ion battery

　　4. Zinc–air battery and PEM fuel cell

　　In addition to the above, in view of the rapid growth of China's communication industry, China's battery industry is promoting the technological development and expansion of the application market of environmentally friendly mercury free alkaline zinc manganese batteries, rechargeable batteries and sealed Lead–acid battery at a very high speed.

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