Nickel cobalt manganese (NCM811) hydroxide is the chemical precursor of the positive electrode active material in lithium-ion batteries; this dataset includes the main raw materials, auxiliaries, energy, and wastewater treatment in the production process, while infrastructure such as the manufacture of production equipment and plant construction are not included in the data set boundary; the data inventory is formed by merging data from multiple sources; the synthesis of ternary precursors adopts the coprecipitation method, using nickel salt, cobalt salt, and manganese salt as raw materials, mixed in certain ratios, then reacted with precipitating agents (such as sodium hydroxide, etc.) under certain conditions to generate precipitates of ternary precursors, followed by washing, filtering, drying to obtain the ternary precursors. bulk powder.