Preparation technique of lithium-ion battery anode material lithium iron phosphate

Abstract

The invention discloses a preparation technique of the lithium-ion battery anode material lithium iron phosphate, which belongs to the preparation method of the battery anode material. The lithium iron phosphate is prepared by taking iron powder Fe, lithium hydroxide LiOH or lithium carbonate LI2CO3 and phosphoric acid (H3PO4) as raw materials according to the following processing steps of preparation of acid phosphate ferrous, preparation of iron lithium phosphate, and sintering. The preparation technique has the advantages of simple production process, easy operation, safety and reliability, pure product, stable quality, low costs, and no pollution to the environment.

Description

technical field

[0001] The invention relates to a method for preparing battery anode materials, in particular to a preparation process for lithium-ion battery anode material lithium ferrous phosphate. Background technique

[0002] With the decrease of fossil energy and the increasing attention of human beings to environmental pollution, it has become a top priority to find new clean energy, so the utilization of electric energy has been paid more and more attention by people. The batteries currently used on moving objects are generally lead-acid batteries. However, traditional lead-acid batteries have insurmountable shortcomings. First, the pollution is serious, and lead and acid are serious pollution sources. The second is self-heavy and small specific capacity. Third, the service life is short, and the times of charging and discharging are few. In recent years, lithium-ion batteries have developed rapidly. At present, the research on lithium iron phosphate batteries is ...