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Patent Agency Ranking
公开(公告)号：WO2021242831A2
公开(公告)日：2021-12-02
申请号：PCT/US2021/034209
申请日：2021-05-26
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： WANG, Yan , MA, Xiaotu , GRATZ, Eric , FU, Jinzhao , VANAPHUTI, Panawan
IPC: C01D15/00 , C30B1/02 , H01M10/052 , H01M10/54 , B22F8/00 , C30B29/16 , C30B1/04 , C30B1/12 , C30B29/22 , C30B29/52 , H01M2004/028 , H01M4/505 , H01M4/525
Abstract: A recycling and synthesis of charge material for secondary batteries generates single-crystal charge materials for producing batteries with greater charge cycle longevity. Charge material particles undergo a heating for fusing or enhancing grain boundaries between polycrystalline particles. The resulting, more well-defined grain boundaries are easily etched by a relatively weak mineral acid solution. The acid solution removes material at the grain boundaries to separate secondary particles into primary particles along the grain boundaries. The resulting single crystal (monocrystalline) charge material particles are washed and filtered, and typically re-sintered to accommodate any needed lithium (lithium carbonate), and result in a charge material with larger surface area, higher lithium diffusivity and lower cation ordering.
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公开(公告)号：WO2017091562A1
公开(公告)日：2017-06-01
申请号：PCT/US2016/063294
申请日：2016-11-22
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： WANG, Yan , GRATZ, Eric , SA, Qina , ZHENG, Zhangfeng , HEELAN, Joseph
CPC classification number: H01M10/54 , B09B3/00 , C01G53/006 , C01G53/42 , C01G53/50 , C22B7/006 , H01M4/525 , Y02P10/234 , Y02W30/84
Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.
Abstract translation: 将来自耗尽的锂离子电池的阴极材料溶解在用于提取有用元素Co（钴），Ni（镍），Al（铝）和Mn（锰）的溶液中以产生活性阴极材料用于 新电池。 该溶液包括所需材料的化合物，例如钴，镍，铝和锰，作为来自废电池的耗尽阴极材料的化合物溶解。 根据所需材料的所需比例或比例，将原料加入到溶液中以达到用于新电池的再循环阴极材料的混合化合物的所需比例。 所需材料从溶液中沉淀出来而没有大量加热或将所需材料分离成单个化合物或元素。 所得到的活性阴极材料具有用于新电池的预定比例，并且避免了分离有用元件通常需要的高热量，因为期望的材料保持混合在溶液中。
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公开(公告)号：EP4157796A2
公开(公告)日：2023-04-05
申请号：EP21813618.2
申请日：2021-05-26
Applicant: Worcester Polytechnic Institute
Inventor： WANG, Yan , MA, Xiaotu , GRATZ, Eric , FU, Jinzhao , VANAPHUTI, Panawan
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公开(公告)号：EP3381080A1
公开(公告)日：2018-10-03
申请号：EP16869162.4
申请日：2016-11-22
Applicant: Worcester Polytechnic Institute
Inventor： WANG, Yan , GRATZ, Eric , SA, Qina , ZHENG, Zhangfeng , HEELAN, Joseph
CPC classification number: H01M10/54 , B09B3/00 , C01G53/006 , C01G53/42 , C01G53/50 , C22B7/006 , H01M4/525 , Y02P10/234 , Y02W30/84
Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.
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公开(公告)号：EP4141133A1
公开(公告)日：2023-03-01
申请号：EP21213247.6
申请日：2021-12-08
Applicant: Worcester Polytechnic Institute
Inventor： WANG, Yan , GRATZ, Eric , SA, Qina , ZHENG, Zhangfeng , HEELAN, Joseph , KIM, Kee-Chan
Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.
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