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公开(公告)号：US20230044374A1
公开(公告)日：2023-02-09
申请号：US17964555
申请日：2022-10-12
Applicant: Worcester Polytechnic Institute , Ascend Elements, Inc.
Inventor： Yan Wang , Diran Apelian , Haiyang Zou
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：US11502345B2
公开(公告)日：2022-11-15
申请号：US17572079
申请日：2022-01-10
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Diran Apelian , Haiyang Zou
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：US10741890B2
公开(公告)日：2020-08-11
申请号：US15976981
申请日：2018-05-11
Applicant: Worcester Polytechnic Institute
IPC: H01M10/00 , H01M10/54 , C01B25/45 , H01M4/58 , H01M10/0525 , H01M4/525 , C22B47/00 , C22B3/02 , H01M4/505 , C22B7/00 , C22B26/12 , H01M4/02
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 valuable charge materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. However, LiFePO4 is a waste stream charge material often discarded due to infeasibility of recycling. LiFePO4 is precipitated as FePO4 and remains as a by-product, along with graphite and carbon, which are not dissolved into the solution. FePO4 can be separated from graphite and carbon, FePO4 can be used to synthesize LiFePO4 as cathode materials and graphite can be regenerated as anode materials.
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公开(公告)号：US20170077564A1
公开(公告)日：2017-03-16
申请号：US15358862
申请日：2016-11-22
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Eric Gratz , Qina Sa , Zhangfeng Zheng , Joseph Heelan
IPC: H01M10/54 , C01G53/00 , H01M10/0525
CPC classification number: H01M10/54 , C01G53/40 , C01G53/50 , C22B3/02 , C22B7/006 , C22B26/12 , C22B47/00 , H01M4/505 , H01M4/525 , H01M10/0525 , 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: 将从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）的溶液中以产生用于新电池的活性阴极材料。 该溶液包括从废电池的耗尽的正极材料中作为化合物溶解的所需材料如钴，镍，铝和锰的化合物。 根据所需材料的所需比例或比例，将原料加入到溶液中以获得用于新电池的再循环阴极材料的混合化合物的所需比例。 所需的材料从溶液中沉淀出来，而不需要大量加热或将所需材料分离成单独的化合物或元素。 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素所需的高热量，因为所需材料保持混合在溶液中。
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公开(公告)号：US20160047054A1
公开(公告)日：2016-02-18
申请号：US14826403
申请日：2015-08-14
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Qiang Wang
CPC classification number: C25C5/02 , C25B1/02 , C25B9/06 , C25B11/02 , C25B11/0415 , C25C7/00 , C25C7/02
Abstract: The iron and steel industry has a history of environmental consciousness, and efforts are continually made to reduce energy consumption and CO2 emissions. However, the carbothermic process has approached limits on the further reduction of greenhouse gas emissions, and only marginal improvements can be expected. Low temperature electrolysis using a dispersion medium to efficiently distribute charge throughout a colloid mixture including iron oxide provides an environmentally friendly method for performing an electrochemical reduction of Fe2O3 to produce granular Fe. An electrical-ionic conductive colloidal electrode containing the electrochemically active species (Fe2O3 particles), the liquid electrolyte (NaOH solution), and a percolating electrical conductor (carbon network) is utilized to produce Fe. The resulting simultaneous percolation of electrons and ions effectively increases the area of the current collector, and enables the process to function at higher currents and rate of charge transfer than static electrolysis.
Abstract translation: 钢铁工业具有环保意识的历史，不断努力减少能源消耗和二氧化碳排放。 然而，碳热还原过程对进一步减少温室气体排放的限制已经达到了极限，只能预期微小的改善。 使用分散介质的低温电解以有效地分配电荷到包括氧化铁在内的胶体混合物中提供了一种环境友好的方法，用于进行Fe 2 O 3的电化学还原以产生粒状Fe。 使用包含电化学活性物质（Fe 2 O 3颗粒），液体电解质（NaOH溶液）和渗透电导体（碳网络）的电离离子导电胶体电极来生产Fe。 所产生的电子和离子的同时渗透有效地增加了集电器的面积，并且使得该工艺能够在比静电解更高的电流和电荷转移速率下起作用。
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Patent Agency Ranking
公开(公告)号：US20220131204A1
公开(公告)日：2022-04-28
申请号：US17572079
申请日：2022-01-10
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Diran Apelian , Haiyang Zou
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：US20210408539A1
公开(公告)日：2021-12-30
申请号：US17363693
申请日：2021-06-30
Applicant: Northeastern University , Worcester Polytechnic Institute
Inventor： Hongli Zhu , Yubin Zhang , Yan Wang , Daxian Cao
IPC: H01M4/525 , H01M4/505 , H01M10/0562 , H01M4/04
Abstract: A solid-state battery is described. The solid-state battery includes an anode, a coated cathode, and an electrolyte. The cathode coating is formed of lithium (Li), lanthanum (La), strontium (Sr), titanium (Ti), and oxygen (O). The cathode coating has a high ionic conductivity.
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公开(公告)号：US20240413421A1
公开(公告)日：2024-12-12
申请号：US18805482
申请日：2024-08-14
Applicant: Worcester Polytechnic Institute
Inventor： Yan Wang , Eric Gratz , Qina Sa , Zhangfeng Zheng , Joseph Heelan , Kee-Chan Kim
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：US20240030484A1
公开(公告)日：2024-01-25
申请号：US18223376
申请日：2023-07-18
Applicant: Worcester Polytechnic Institute
Inventor： Panawan Vanaphuti , Yan Wang
IPC: H01M10/054 , H01M4/04
CPC classification number: H01M10/054 , H01M4/0471 , H01M2004/028
Abstract: A sodium-ion batteries (NIBs) employs doped P2-type phase using novel Na—Mn-Li—O oxide composition with different ions to alleviate the structural deterioration and enhance the electrochemical performance at high voltage. A sodium-ion battery (NIB) exhibits a stoichiometric ratio of sodium, manganese and lithium for a battery cathode, combined and agitated to form a granular mixture in the determined stoichiometric ratio. A doping element is added to the granular mixture, and the granular mixture sintered for a predetermined time and temperature for forming an NIB battery cathode material.
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公开(公告)号：US10547044B2
公开(公告)日：2020-01-28
申请号：US15252481
申请日：2016-08-31
Inventor： Yan Wang , Zhangfeng Zheng , Brandon Ludwig , Heng Pan
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.
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