Method for power battery automatic fine-quantity sorting and apparatus thereof

{
  "publication_number": "US2023234074A1",
  "country": "US",
  "kind": "A1",
  "title": "Method for power battery automatic fine-quantity sorting and apparatus thereof",
  "abstract": "The present invention discloses a method for power battery automatic fine-quantity sorting and an apparatus thereof, the method including the following steps of Si. The material is crushed, and leveled, and is then subjected to magnetic sorting processing to sort out iron powder; S 2. The material after magnetic sorting is subjected to electrostatic processing to sort out positive electrode material powder; S 3. The material after electrostatic processing is subjected to bounce processing to sort out the collector and graphite powder. A magnetic sorting device, an electrostatic sorting device, and a bouncing sorting device are accordingly provided.",
  "claims": [
    "1. A method for power battery automatic fine-quantity sorting, comprising: S 1. crushing and leveling a material, and performing a magnetic sorting processing to sort out iron powder; S 2. performing an electrostatic processing on the material after being subjected to the magnetic sorting processing to sort out positive electrode material powder; S 3. performing a bounce processing on the material after being subjected to the electrostatic processing to sort out collector and graphite powder, and wherein, a sorting apparatus based on the method for power battery automatic fine-quantity sorting, along the direction of material transmission, is successively provided with: a magnetic sorting device, comprising a permanent magnet rolling wheel (100), an iron powder hopper (200) is provided at the lower left of the permanent magnet rolling wheel (100); an electrostatic sorting device, located at the lower right of the permanent magnet rolling wheel (100), comprising a grounded roller electrode (500), a corona electrode (300) and a static electrode (400) successively provided at the upper right of the roller electrode (500), and a brush (600) in contact with the roller electrode (500) provided at the lower left, the corona electrode (300), the static electrode (400) and the brush (600) are located at 1, 2, 9 o'clock direction of the roller electrode (500) respectively; a bouncing sorting device, located at the lower right of the roller electrode (500), comprising a drive wheel (700), a drive wheel (710) and a conveyor belt (720), a deflecting wheel (800) and a carrier rod (810) being provided below the driven wheel (700), one end of the carrier rod (810) being connected to the deflecting wheel (800) to form an eccentric wheel mechanism, and the other end being connected to the driven wheel (710). 2. The method of claim 1, wherein, in step S 1, a stack thickness of the leveled material is 0.8-1 mm. 3. The method of claim 1, wherein, in step S 2, a voltage of the electrostatic processing is 10-30 kV. 4. A sorting apparatus based on a method for power battery automatic fine-quantity sorting, wherein, along the direction of material transmission, successively provided with: a magnetic sorting device, comprising a permanent magnet rolling wheel (100), an iron powder hopper (200) is provided at the lower left of the permanent magnet rolling wheel (100); an electrostatic sorting device, located at the lower right of the permanent magnet rolling wheel (100), comprising a grounded roller electrode (500), a corona electrode (300) and a static electrode (400) successively provided at the upper right of the roller electrode (500), and a brush (600) in contact with the roller electrode (500) provided at the lower left; the corona electrode (300), the static electrode (400) and the brush (600) are located at 1, 2, 9 o'clock direction of the roller electrode (500) respectively; a bouncing sorting device, located at the lower right of the roller electrode (500), comprising a drive wheel (700), a driven wheel (710) and a conveyor belt (720), a deflecting wheel (800) and a carrier rod (810) being provided below the driven wheel (700), one end of the carrier rod (810) being connected to the deflecting wheel (800) to form an eccentric wheel mechanism, and the other end being connected to the driven wheel (710). 5. The sorting apparatus of claim 4, wherein, the sorting apparatus further comprises a feed inlet (1200) and a scraper (1300) provided between the feed inlet (1200) and the permanent magnet rolling wheel (100). 6. The sorting apparatus of claim 4, wherein, an inclined guide plate (1400) is provided between the permanent magnet rolling wheel (100) and the roller electrode (500). 7. The sorting apparatus of claim 4, wherein, a positive electrode material powder hopper (1000) is provided below the brush (600). 8. The sorting apparatus of claim 4, wherein, the driving wheel (700) and the deflecting wheel (800) are driven by a same motor (1100). 9. The sorting apparatus of claim 4, wherein, a collector hopper (900) and a graphite powder hopper (910) are successively provided at the lower right of the driven wheel (710). 10. The sorting apparatus of claim 4, wherein, the rotating speed of the permanent magnet rolling wheel (100) is 0.05-0.2 m/s."
  ],
  "description_excerpt": "The present invention relates to the technical field of recycling the waste lithium battery, and more particularly, to a method for power battery automatic fine-quantity sorting and an apparatus thereof.\n\nUnder the circumstance of massive growth of retired power batteries and strict requirements on current environmental protection laws and regulations, higher requirements are put forward for power battery recycling and resourcing process. However, the sorting of materials after the power battery being crushed is always a troublesome problem during the actual recycling process, and the sorting of materials with higher precision is even more difficult to break through.\n\nWaste lithium batteries contain a large amount of non-renewable metal resources with high economic values, such as cobalt, lithium, nickel, copper, aluminum and others. If the waste or unqualified lithium batteries can be effectively recycled, it can not only reduce the pressure of waste file batteries on the environment, but also can avoid the waste of metal resources such as cobalt, nickel and others. Pre-processing the waste lithium batteries of the current recycling technology route includes discharging, disassembly, comminution and sorting. Wherein, the sorting is the difficulty in the process of pre-processing, especially the higher requirements on the precision of the powder obtained after the sorting, Therefore, a single sorting means, such as window sorting and magnetic sorting, are difficult to meet the current production requirements.",
  "cpc": [
    "B03C 1/30",
    "B03B 2009/066",
    "B03B 9/06",
    "B03C 1/14",
    "B03C 1/16",
    "B03C 1/18",
    "B03C 2201/20",
    "B03C 7/06",
    "B03C 7/08",
    "B07B 13/08",
    "B07B 13/10",
    "B07C 5/344",
    "B09B 2101/16",
    "B09B 3/00",
    "B09B 3/35",
    "B09B 5/00",
    "H01M 10/54",
    "Y02W 30/84"
  ],
  "ipc": [
    "B03B 9/06",
    "B03C 1/18",
    "B03C 1/30",
    "B03C 7/08",
    "B09B 3/35",
    "H01M 10/54"
  ],
  "assignees": [
    "Hunan Brunp Recycling Technology Co Ltd",
    "Guangdong Brunp Recycling Technology Co Ltd",
    "Hunan Bangpu Automobile Circulation Co Ltd"
  ],
  "inventors": [
    "Haijun YU",
    "Ting Peng",
    "Yinghao Xie",
    "Shumin Liu"
  ],
  "filing_date": "2021-05-13",
  "publication_date": "2023-07-27",
  "priority_date": "2020-08-11",
  "application_number": "US-202118041402-A",
  "family_id": "73736095",
  "cited_by_count": 4
}