Method for mildly and efficiently dissolving positive electrode material of lithium ion battery by utilizing phytic acid type eutectic solvent

The invention relates to a method for mildly and efficiently dissolving a lithium ion battery positive electrode material by using a phytic acid type eutectic solvent, which comprises the following steps of: preparing the eutectic solvent by using polyethylene glycol 200 as a hydrogen bond acceptor and phytic acid as a hydrogen bond donor according to the molar ratio of the hydrogen bond acceptor to the hydrogen bond donor of 1: 1-2: 1, and dissolving the positive electrode material of the lithium ion battery under the conditions that the reaction time is 6-24 hours and the reaction temperature is 25-80 DEG C. The method for mildly and efficiently dissolving the positive electrode material of the lithium ion battery by using the phytic acid type eutectic solvent is simple, convenient, green, mild, high in leaching efficiency and environment-friendly, and has very high practical application value. 本发明涉及一种利用植酸型低共熔溶剂温和高效溶解锂离子电池正极材料的方法，该方法以聚乙二醇200为氢键受体、植酸为氢键供体并按照氢键受体与氢键供体的摩尔比为1∶1～2∶1制备低共熔溶剂，在低共熔溶剂质量为5克～10克，反应时间为6