Lithium-ion batteries are currently being scrapped in large quantities, and there are almost no reports of mixed waste disposal. This paper describes research on a comprehensive recovery process for the mixed waste of LiNi_xCo_yMn_(1−x−y)O₂ and LiFePO₄. The interaction of LiFePO₄ and LiNi_xCo_yMn_(1−x−y)O₂ is utilized to achieve selective leaching through a low H₂SO₄-low H₂O₂ system, removal of P and Fe by Fe₂(SO₄)₃-NaOH, preparation of Ni–Co–Mn hydroxide by addition of NaOH, preparation of Li₃PO₄ using Na₃PO₄, and separation of Fe and P by acid. The research shows that when 5.23 ml/g 1 M H₂SO₄ and 0.308 g/g 30% H₂O₂ were added at 90 °C for 5 h, the leaching ratios of Li, Ni, Mn, and Co achieved were 99.589%, 98.524%, 97.079%, and 96.257%, respectively. At 90 °C and a pH 12 for 2 h, the precipitation ratios of Ni, Co, and Mn were 99.79%, 99.89%, and 99.89%, respectively. A total of 55.12 g/l of Na₃PO₄ was added to the solution to effect settling of Li, and a sedimentation rate of 98.46% was achieved. The leaching residue was dissolved in 3 M HCl of 6.62 ml/g, and the achieved leaching ratio of the FePO₄ was more than 95%.

锂离子电池目前正在大量报废，几乎没有关于混合废物处置的报道。本文介绍了LiNi _x Co _y Mn _{（1- x - y）} O ₂和LiFePO ₄混合废料的综合回收工艺的研究。的LiFePO的相互作用₄和的LiNi _X钴_Ý锰_{（1- X - Ý）} Ö ₂被用来实现通过一个低选择性浸出ħ ₂ SO ₄ -低ħ ₂ ö ₂系统，通过Fe ₂（SO ₄）₃ -NaOH去除P和Fe，通过添加NaOH制备Ni-Co-Mn氢氧化物，使用Na ₃ PO ₄制备Li ₃ PO ₄以及通过以下方法分离Fe和P酸。研究表明，在90°C下加入5.23 ml / g 1 MH ₂ SO ₄和0.308 g / g 30％H ₂ O ₂ 5 h时，Li，Ni，Mn和Co的浸出率达到99.589。 ％，98.524％，97.079％和96.257％。在90°C和pH值为12的条件下放置2小时，Ni，Co和Mn的沉淀率分别为99.79％，99.89％和99.89％。总共55.12 g / l Na ₃ PO_将4添加到溶液中以实现Li的沉降，并且达到98.46％的沉降率。浸出残渣溶解在6.62ml / g的3M HCl中，FePO _4的浸出率达到95％以上。