公开(公告)号：US20240344172A1

公开(公告)日：2024-10-17

申请号：US18701088

申请日：2022-10-04

申请人： JFE STEEL CORPORATION

发明人： Yuta HINO ,  Yotaro INOUE ,  Katsunori TAKAHASHI

IPC分类号： C22B7/00 ,  C22B23/02 ,  C22B47/00 ,  H01M10/54

CPC分类号： C22B7/001 ,  C22B23/021 ,  C22B47/00 ,  H01M10/54

摘要： A method for recovering a valuable element, by which method metal with a high proportion of a valuable element can be obtained. The method includes adding a reductant to an oxide containing at least one element selected from the group consisting of nickel and cobalt, followed by heating, to thereby reduce the oxide, the reductant contains at least one selected from the group consisting of metallic iron and an iron oxide, and an addition amount of the reductant is 1.3 equivalent or less.

公开(公告)号：US20240339689A1

公开(公告)日：2024-10-10

申请号：US18682621

申请日：2021-11-04

申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE

发明人： Min Ku JEON ,  Sung Wook KIM ,  Keun Young LEE ,  Hee Chul EUN ,  Maeng Kyo OH

IPC分类号： H01M10/54 ,  B09B3/70 ,  B09B3/80 ,  B09B101/16 ,  C01D15/08

CPC分类号： H01M10/54 ,  B09B3/70 ,  B09B3/80 ,  C01D15/08 ,  B09B2101/16 ,  C01P2002/72 ,  C01P2006/40

摘要： The present invention provides a method for recycling a positive electrode material for secondary batteries that can not only safely separate positive electrode materials included in waste batteries without by-products such as acid waste and the like, but also recycle the rapidly increasing amount of waste batteries through a simple and efficient process, thereby significantly reducing social and economic costs.

公开(公告)号：US20240332657A1

公开(公告)日：2024-10-03

申请号：US18425026

申请日：2024-01-29

申请人： KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES

发明人： Byung-Su KIM ,  Jeonghyun YOO ,  Ji-Hyuk CHOI ,  Taegong RYU ,  Han Kwon CHANG

IPC分类号： H01M10/54 ,  C22B1/24 ,  C22B7/00 ,  C22B26/12

CPC分类号： H01M10/54 ,  C22B1/24 ,  C22B7/004 ,  C22B26/12

摘要： The present disclosure provides a method for recycling a waste lithium ion battery, a method for smart recycling a waste lithium ion battery, and a system for smart recycling a waste lithium ion battery, comprising a partial melt separation process for lithium alloy compound formation and graphite separation, wherein the partial melt separation process comprises dry-separating a lithium alloy compound, a copper metal, an aluminum-copper alloy, and graphite from waste lithium ion battery cell shreds, discharged waste lithium ion battery cells or waste lithium ion battery cases.

公开(公告)号：US12107245B2

公开(公告)日：2024-10-01

申请号：US18284764

申请日：2022-09-28

申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD.

发明人： Haijun Yu ,  Yinghao Xie ,  Aixia Li ,  Changdong Li

IPC分类号： H01M10/54 ,  C01G49/00 ,  C22B1/02 ,  C22B7/00

CPC分类号： H01M10/54 ,  C01G49/009 ,  C22B1/02 ,  C22B7/007

摘要： The disclosure discloses a method for recycling a lithium iron phosphate waste battery, and belongs to the technical field of battery recycling. In the method for recycling the lithium iron phosphate waste battery according to the disclosure, it takes a cathode material of the waste lithium iron phosphate battery as a main body, uses a lithium source, a ferric source and a phosphorus source to supplement lithium to the cathode material for repairing, and meanwhile, rebuilds a new lithium iron phosphate coating layer containing a carbon layer cross-linked structure on a surface of the cathode material to realize regeneration of the lithium iron phosphate The disclosure also provides a regenerated lithium iron phosphate/C cathode material prepared by the recycling method.

公开(公告)号：US20240322282A1

公开(公告)日：2024-09-26

申请号：US18694155

申请日：2022-12-05

申请人： POSCO Holdings Inc. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

发明人： Eun Jin JUNG ,  Gilsoo HAN ,  Kwang Sun WOO ,  Byung Won KIM

IPC分类号： H01M10/54 ,  C22B7/00 ,  C22B26/12

CPC分类号： H01M10/54 ,  C22B7/001 ,  C22B26/12

摘要： Provided is a method for recovering lithium from a waste lithium battery cell including: heat treating a mixture including a waste lithium battery cell and an additive; and trapping a lithium salt produced in the heat treating.

公开(公告)号：US20240318282A1

公开(公告)日：2024-09-26

申请号：US18579520

申请日：2022-07-14

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Hiroshi Takenouchi ,  Shin-ichi Heguri ,  Satoshi Asano ,  Hirofumi Shouji ,  Itsumi Matsuoka ,  Shota Sanjo ,  Takumi Matsugi

IPC分类号： C22B3/00 ,  C22B3/22 ,  C22B3/44 ,  C22B7/00 ,  H01M10/54

CPC分类号： C22B23/043 ,  C22B3/22 ,  C22B3/44 ,  C22B7/007 ,  C22B23/0461 ,  H01M10/54

摘要： The present invention provides a method that is capable of selectively obtaining nickel and/or cobalt from an alloy, which contains copper. A method comprises: a leaching step S1 in which an alloy that contains copper as well as nickel and/or cobalt is subjected to a leaching treatment by means of an acid solution in the coexistence of a sulfurizing agent, thereby obtaining a leachate and a leaching residue; and a reduction step S2 in which a reducing agent is added to the thus-obtained leachate so as to reduce the leachate, thereby obtaining a post-reduction solution and a reduction residue. This method is characterized in that the reduction is carried out in the reduction step S2, while controlling the addition amount of the reducing agent so that the redox potential of the leachate is 0 mV or less as determined where a silver/silver chloride electrode is the reference electrode.

公开(公告)号：US20240313283A1

公开(公告)日：2024-09-19

申请号：US18120786

申请日：2023-03-13

申请人： Ascend Elements, Inc.

发明人： Yadong Liu ,  Haixia Deng ,  Eric Gratz ,  Dhiren Mistry ,  Anil Parmar

IPC分类号： H01M10/54 ,  C01G53/00

CPC分类号： H01M10/54 ,  C01G53/50 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2006/42

摘要： A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

公开(公告)号：US20240313212A1

公开(公告)日：2024-09-19

申请号：US18120776

申请日：2023-03-13

申请人： Ascend Elements, Inc.

发明人： Yadong Liu ,  Haixia Deng ,  Eric Gratz ,  Dhiren Mistry ,  Anil Parmar

IPC分类号： H01M4/525 ,  H01M10/0525 ,  H01M10/54

CPC分类号： H01M4/525 ,  H01M10/0525 ,  H01M10/54 ,  H01M2004/021

摘要： A battery recycling process aggregates a recycling stream including charge material metals from exhausted Li-ion batteries and generates recycled battery charge material having comparable or improved cycle life as well as recycled charge material precursor having fewer cracking defects using doping substances in a coprecipitation phase in the recycling sequence. In a coprecipitation process, a solution of comingled charge material metals is produced, the ratio of the charge material metals is adjusted based on recycled battery specifications, and a relatively small quantity of a doping salt is added.

公开(公告)号：US20240309531A1

公开(公告)日：2024-09-19

申请号：US18139270

申请日：2023-04-25

申请人： VERDEEN CHEMICALS INC.

发明人： Vipin Tyagi ,  Amol Harishchandra Naik ,  Nishchay Chadha

IPC分类号： C25C1/18 ,  C25B1/16 ,  C25B1/26 ,  C25B9/19 ,  C25B9/63 ,  C25B13/08 ,  C25C7/02 ,  C25C7/04 ,  H01M10/54

CPC分类号： C25C1/18 ,  C25B1/16 ,  C25B1/26 ,  C25B9/19 ,  C25B9/63 ,  C25B13/08 ,  C25C7/02 ,  C25C7/04 ,  H01M10/54 ,  H01M10/06

摘要： Disclosed are solutions for the recovery of elemental metals at industrial scales without smelting including, for example, the recovery of near-pure lead from recycled LABs via specialized electrolytic processing. Further disclosed are new processes, innovative electrolyzer designs, and/or novel utilization of supplemental chemicals necessary for successful electrolysis of pure metal from impure forms (e.g., pure lead from lead oxides), and especially applicable for solid-state electrolysis of mixtures comprising lead paste, electrolyte, and supplemental chemicals. With particular regard to recovering near-pure lead during LAB recycling, solid-state electrolysis of mixtures comprising impure lead (e.g., lead paste) is made possible and scalable to industrial levels via utilization of a vertically-arranged series of two-compartment horizontal cathodes or two-compartment horizontal bipolar cathodes in an electrolyzer assembly to simultaneously produce, for example, elemental lead (Pb), sodium hydroxide (NaOH), and chlorine gas (Cl2).

公开(公告)号：US20240304883A1

公开(公告)日：2024-09-12

申请号：US18598887

申请日：2024-03-07

申请人： Ascend Elements, Inc.

发明人： Kee-Chan Kim ,  Eric Gratz ,  Benoit Tranape

IPC分类号： H01M10/54 ,  B01D61/02 ,  B01D61/04 ,  B09B3/70 ,  B09B3/80 ,  C01D15/02 ,  C01D15/08 ,  C01G53/00 ,  C01G53/10 ,  B09B101/16

CPC分类号： H01M10/54 ,  B01D61/027 ,  B01D61/04 ,  B09B3/70 ,  B09B3/80 ,  C01D15/02 ,  C01D15/08 ,  C01G53/003 ,  C01G53/10 ,  B09B2101/16

摘要： A recycling method for generating purified lithium salts from a recycling stream of lithium-ion (Li-ion) batteries includes leaching black mass from the recycling stream in an aqueous solution of an oxidizing agent. Delithiated black mass is filtered from the aqueous solution to generate a Li-rich leach solution, which is subjected to nanofiltration to form a nanofiltration permeate from which the purified lithium salt is obtained.