A method for preparing high-performance lithium-rich manganese-based positive electrode material from waste lithium ion batteries
By treating spent lithium-ion battery cathode materials through leaching, precipitation, and calcination, high-performance lithium-rich manganese-based cathode materials were prepared, solving the complexity and environmental problems of recycling retired lithium-ion batteries and achieving high energy density and low-cost material preparation.
CN122403518APending Publication Date: 2026-07-17KUNMING UNIV OF SCI & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KUNMING UNIV OF SCI & TECH
- Filing Date
- 2026-04-25
- Publication Date
- 2026-07-17
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Figure CN122403518A_ABST
Abstract
本发明属于废旧锂离子电池资源化技术领域，提供了一种由废旧锂离子电池再生制备高性能富锂锰基正极材料的方法。本发明通过将废旧锂离子电池的正极材料与浸出液混合进行浸出反应，得到富含镍和锰的浸出液；将富含镍和锰的浸出液与镍源、锰源、沉淀剂、pH值调节剂混合进行沉淀反应，得到无钴富锂锰基前驱体；将无钴富锂锰基前驱体与锂源混合进行煅烧处理，得到高性能富锂锰基正极材料。该方法简单、能耗低、成本低且对环境友好，制得的富锂锰基正极材料兼具高能量密度与高安全性能，不仅实现了废旧锂离子电池的资源化、高值化利用，还能够推动高性能富锂锰基正极材料的大规模生产，应用范围十分广泛。
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