一种磷酸铁锂黑粉综合回收方法
By employing mechanical activation, compound molten salt microwave pyrolysis, and ultrasonic water immersion, the problems of high energy consumption, high cost, and complex processes in the recycling of waste lithium iron phosphate batteries have been solved, achieving efficient and low-cost recycling of lithium iron phosphate black powder and obtaining high-purity LiFePO4 cathode material.
CN121023213BActive Publication Date: 2026-07-17DONGJIANG ENVIRONMENTAL CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGJIANG ENVIRONMENTAL CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
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Figure CN121023213B_ABST
Abstract
本发明涉及锂离子电池回收的技术领域，更具体地说，它涉及一种磷酸铁锂黑粉综合回收方法，其技术方案要点是，包括如下步骤：S1、对废旧磷酸铁锂黑粉进行机械活化，获得活化粉；S2、将(NH4)2SO4和MeS2O3进行混合，获得复配熔盐；S3、将所述活化粉和所述复配熔盐分置于反应炉内上下隔离的反应腔体，且两反应腔体通过气体导流管连通，在无接触控气氛下进行微波热解，获得热解渣；S4、对所述热解渣进行超声水浸、固液分离，获得提锂液和提锂渣。本发明对活化粉与复配熔盐采用无接触设置，具有简化处理工艺，提高产物纯度的优点。
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