Method for electrochemically recovering lithium ions in lithium iron phosphate powder

The invention belongs to the technical field of lithium ion battery recovery, and particularly relates to a method for electrochemically recovering lithium ions in lithium iron phosphate powder. Compared with a traditional recovery method, the method has the advantages that two oxidants are generated at the same time mainly through an electrochemical oxidation-reduction method, the anode can generate a ClO oxidant, the cathode can generate a. OH free radical oxidant, efficient selective leaching of lithium ions in LFP is achieved, iron ions and the like are separated by generating related precipitates, and the recovery rate of the lithium ions in LFP is increased. Therefore, the recovery efficiency is obviously improved. The technical problem that the efficiency of recycling lithium iron phosphate through electrolysis is low is solved. 本发明属于锂离子电池回收技术领域，尤其是涉及一种电化学回收磷酸铁锂粉体中锂离子的方法。这种方法与传统的回收方法相比，主要是通过电化学氧化还原方法同时生成两种氧化剂，阳极可以生成ClO-氧化剂，阴极可以生成·OH自由基氧化剂，实现了LFP中锂离子的高效选择性浸出，而铁离子等则通过生成相关沉淀物分离，从而显著地提高了回收效率。解决了电解回收磷酸铁