一种废旧锂电池中铜铝分选工艺
By combining airflow stripping, hammer crushing, and grinding processes, the problem of separating copper and aluminum foil from electrode powder in lithium batteries has been solved, improving the electrode powder recovery rate and the grade of copper and aluminum, and enhancing the recycling efficiency.
CN118045852BActive Publication Date: 2026-07-17HUNAN JIANG YE MECHANICAL & ELECTRICAL TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN JIANG YE MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2024-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing lithium battery copper-aluminum sorting processes, copper and aluminum foil are mixed with electrode powder and difficult to separate, resulting in reduced electrode powder quality or low copper and aluminum grade, which affects recycling value.
Method used
The electrode powder is removed by an airflow stripper, and the outer shell is separated by a hammer crusher and a vibrating screen. Then, the copper and aluminum foil is refined by a grinding mill and the outer shell is screened out. Finally, it is sorted in a gravity separator.
Benefits of technology
It achieves efficient recovery and high-purity separation of the powder, and the high recovery rate and high grade of copper and aluminum foil enhance the recycling value.
✦ Generated by Eureka AI based on patent content.
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Figure CN118045852B_ABST
Abstract
本发明公开一种废旧锂电池中铜铝分选工艺。将废旧锂电池破碎热解得到的电池外壳、铜铝箔和极粉投入气流剥离机剥离极粉，极粉剥离后铜铝箔和外壳进入铜铝破碎机进行粗破并将外壳搓球，剥离机出料口连接振动筛，将成球的外壳筛出，剩余的铜铝箔进入研磨机进一步研磨，研磨后的铜铝颗粒进入比重分选机分选。本发明采用气流剥离机，通过摩擦打散的方式将极粉剥离，然后通过气流分级将极粉与铜铝箔分开。极粉回收率达到96％‑98％，品位达到96％‑98％；采用锤式破碎机，能有效地破碎铜铝箔，同时外壳料厚度较厚，只能搓球，可以很好地将外壳筛出，提高铜铝品味，总之可提高极粉和铜铝箔的回收率及品味，增加了回收过程产值。
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