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Patent Agency Ranking
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：WO2020139823A1
公开(公告)日：2020-07-02
申请号：PCT/US2019/068303
申请日：2019-12-23
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： WANG, Yan , ZHENG, Zhangfeng , LUDWIG, Brandon , PAN, Heng , LIU, Jin , LIU, Yangtao
IPC: H01M4/139 , H01M4/62 , H01M10/052 , H01M10/0585
Abstract: A dry electrode manufacturing process is employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate, and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a lithium-ion battery. In order to increase the bonding between the current collector and charge materials, an adhesive interlayer is applied through dry printing.
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公开(公告)号：WO2017040917A1
公开(公告)日：2017-03-09
申请号：PCT/US2016/050096
申请日：2016-09-02
Applicant: WORCESTER POLYTECHNIC INSTITUTE
Inventor： WANG, Yan , ZHENG, Zhangfeng , LUDWIG, Brandon , PAN, Heng
CPC classification number: H01M4/0419 , B05B5/032 , B05B5/1683 , B05D1/06 , B05D3/0254 , B05D3/12 , B05D2401/32 , H01M4/0404 , H01M4/0435 , H01M4/0471 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/623 , H01M4/625 , H01M10/052
Abstract: A dry electrode manufacturing process employed for low cost battery through a dry mixing and formation process. A thermal activation renders the dry fabricated electrode comparable to conventional slurry casted electrodes. The dry electrode mixture results from a combination of a plurality of types of constituent particles, including at least an active charge material and a binder, and typically a conductive material such as carbon. The process heats the deposited mixture to a moderate temperature for activating the binder for adhering the mixture to the substrate; and compresses the deposited mixture to a thickness for achieving an electrical sufficiency of the compressed, deposited mixture as a charge material in a battery.
Abstract translation: 干式电极制造方法，其通过干式混合和形成方法用于低成本电池。 热激活使得干燥的制造电极与常规的浆料铸造电极相当。 干电极混合物是由至少包括活性电荷材料和粘合剂的多种构成颗粒的组合以及通常的导电材料如碳组成的。 该方法将沉积的混合物加热至中等温度，以激活粘合剂以将混合物粘附到基底上; 并将沉积的混合物压缩到一个厚度，以实现作为电池中的电荷材料的压缩沉积的混合物的电气充足性。
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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：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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