公开(公告)号：US20250066876A1

公开(公告)日：2025-02-27

申请号：US18811781

申请日：2024-08-22

Applicant: KOREA ZINC CO., LTD. ,  KEMCO

Inventor： Heon Sik CHOI ,  Je Joong LEE

IPC: C22B3/00 ,  C01G53/04 ,  C22B1/02 ,  C22B3/04 ,  C22B3/26 ,  C22B3/44 ,  C22B5/12 ,  C22B23/02 ,  C22B26/12

Abstract: A nickel recovering method includes: (A-i) a reduction heat treatment process for thermally treating a first raw material containing nickel and lithium; (B) a first leaching process for leaching the heat-treated product produced by the reduction heat treatment process; (A-ii) a first roasting process for thermally treating a second raw material containing nickel and sulfur; (C) a second leaching process for leaching the first leaching residue produced by the first leaching process and calcine produced by the first roasting process; (D) a neutralization process for neutralizing the second leachate produced by the second leaching process; (E) a purification process for removing impurities contained in the neutralized solution produced by the neutralization process; (F) a precipitation process for performing precipitation on the purified solution produced by the purification process; and (G) a second roasting process for roasting the precipitated residue produced by the precipitation process to recover nickel.

公开(公告)号：US20250051181A1

公开(公告)日：2025-02-13

申请号：US18930153

申请日：2024-10-29

Applicant: TANAKA CHEMICAL CORPORATION

Inventor： Keiji DEGURA ,  Ryota KOBAYASHI ,  Yusuke MAEDA

IPC: C01G53/04 ,  C01G53/00 ,  H01M4/525 ,  H01M10/0525

Abstract: A precursor for lithium secondary battery positive electrode active materials containing at least nickel, in which the following formula (1) is satisfied. 0.20 ≤Dmin/Dmax   (1) (in the formula (1), Dmin is a minimum particle diameter (μm) in a cumulative particle size distribution curve obtained by measuring the precursor for lithium secondary battery positive electrode active materials with a laser diffraction-type particle size distribution measuring instrument, and Dmax is a maximum particle diameter (μm) in the cumulative particle size distribution curve obtained by the measurement with the laser diffraction-type particle size distribution measuring instrument.)

公开(公告)号：US12209028B2

公开(公告)日：2025-01-28

申请号：US18688799

申请日：2022-09-05

Applicant: AURUBIS AG

Inventor： Anne-Marie Suriano ,  Leslie James Bryson ,  Marcus Eschen

IPC: C01D15/02 ,  C01B25/30 ,  C01D15/08 ,  C01G45/02 ,  C01G53/04 ,  C01G53/10 ,  C22B3/00 ,  C22B3/22 ,  C22B3/44 ,  C22B7/00 ,  C22B26/12 ,  C22B47/00 ,  H01M10/54

Abstract: A process recovers metals from a black mass. The process includes the following steps in the following order: step (a) providing the black mass, which comprises Li; step (b) adding water to the black mass and creating a suspension of the black mass in the water; step (c) dosing ozone as an oxidant to the suspension while stirring the suspension; and step (d) filtering and separating a filtrate containing LiOH dissolved in water from a Li depleted residue of the black mass. In step (c), the suspension is stirred with a shear rate greater than 11000 s−1 within the suspension.

公开(公告)号：US12172906B2

公开(公告)日：2024-12-24

申请号：US17298815

申请日：2019-12-06

Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED ,  TANAKA CHEMICAL CORPORATION

Inventor： Keiji Degura ,  Ryota Kobayashi ,  Yusuke Maeda

IPC: C01G53/04 ,  C01G53/00 ,  H01M4/525 ,  H01M10/0525

Abstract: A precursor for lithium secondary battery positive electrode active materials containing at least nickel, in which the following formula (1) is satisfied. 0.20≤Dmin/Dmax  (1) (in the formula (1), Dmin is a minimum particle diameter (μm) in a cumulative particle size distribution curve obtained by measuring the precursor for lithium secondary battery positive electrode active materials with a laser diffraction-type particle size distribution measuring instrument, and Dmax is a maximum particle diameter (μm) in the cumulative particle size distribution curve obtained by the measurement with the laser diffraction-type particle size distribution measuring instrument.).

公开(公告)号：US20240351912A1

公开(公告)日：2024-10-24

申请号：US18683954

申请日：2022-09-12

Applicant: BASF SE

Inventor： Sabine FRISCHHUT ,  Thorsten BEIERLING ,  Lukas Karl METZGER ,  Matthias RAULS ,  Marc DUCHARDT

IPC: C01G53/00 ,  C01G53/04 ,  H01M4/02 ,  H01M4/525

CPC classification number: C01G53/42 ,  C01G53/04 ,  C01G53/40 ,  H01M4/525 ,  C01P2002/52 ,  C01P2006/40 ,  H01M2004/028

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide of TM, where TM represents metals and includes nickel and at least one metal selected from cobalt and aluminum and manganese. The process includes the steps of:



(a) combining an aqueous slurry of metallic nickel and at least one metal selected from cobalt and manganese and aluminum with an oxidant selected from nitrate and peroxide in a reaction vessel under an atmosphere with less than 100 ppm O2, thereby obtaining an aqueous reaction medium with a pH value in the range of from 7.5 to 12 containing particles,
(b) removing the particles from step (a) from the liquid by a solid-liquid separation method, and drying the particles, and
(c) returning mother liquor obtained in step (b) to the reaction vessel.

公开(公告)号：US12119491B2

公开(公告)日：2024-10-15

申请号：US17799024

申请日：2021-05-26

Applicant: LG Chem, Ltd.

Inventor： Ju Han Yoon ,  Kyoung Wan Park ,  Hyeon Jin Kim ,  Song Yi Yang ,  Young Su Park

IPC: C01G53/04 ,  C01G53/00 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  C01G53/04 ,  C01G53/50 ,  H01M4/505 ,  H01M10/0525 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/53 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/40 ,  H01M2004/028

Abstract: A method of preparing a bimodal positive electrode active material precursor and a positive electrode active material prepared from the same are disclosed herein. In some embodiments, the method includes inputting a first reaction source material including a first aqueous transition metal solution into a reactor, precipitating at pH 12 or more to induce nucleation of a first positive electrode active material precursor particle, and at less than pH 12 to induce growth of the same, inputting a second reaction source material including a second aqueous transition metal solution into the reactor containing the first positive electrode active material precursor particle, precipitating at pH 12 or more to induce the nucleation of a second positive electrode active material precursor particle, and at less than pH 12 to induce simultaneous growth of the first and second positive electrode active material precursor particles, thereby preparing a bimodal positive electrode active material precursor.

公开(公告)号：US12009517B2

公开(公告)日：2024-06-11

申请号：US18134130

申请日：2023-04-13

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Haruki Kaneda ,  Yuki Koshika ,  Takaaki Ando

IPC: H01M4/505 ,  C01G53/00 ,  C01G53/04 ,  H01M4/525 ,  H01M4/86 ,  H01M10/0525

CPC classification number: H01M4/505 ,  C01G53/00 ,  C01G53/006 ,  C01G53/04 ,  C01G53/50 ,  H01M4/525 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/19 ,  C01P2006/40 ,  H01M2004/8689 ,  H01M10/0525

Abstract: Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale. Provided is a nickel-manganese composite hydroxide represented by General Formula (1): NixMnyMz(OH)2+α and containing a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a diffraction peak of a (001) plane obtained by X-ray diffraction measurement of at least 0.10° and up to 0.40° and has a degree of sparsity/density represented by [(void area within secondary particle/cross section of secondary particle)×100](%) of at least 0.5% and up to 10%. Also provided is a production method of the nickel-manganese composite hydroxide.

公开(公告)号：US20240063385A1

公开(公告)日：2024-02-22

申请号：US18268764

申请日：2021-12-13

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

Inventor： Sang Cheol NAM ,  Kwon Young CHOI ,  Jung Hoon SONG ,  Sang Hyuk LEE

IPC: H01M4/525 ,  C01G53/04 ,  C01G53/00

CPC classification number: H01M4/525 ,  C01G53/04 ,  C01G53/42 ,  C01P2002/52 ,  C01P2006/12 ,  C01P2004/80 ,  C01P2006/40 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2002/02 ,  C01P2002/60 ,  H01M2004/021

Abstract: The present exemplary embodiments provide a positive electrode active material, a manufacturing method thereof, and a lithium secondary battery including the same. The positive electrode active material according to an exemplary embodiment is a metal oxide particle including a center and a surface portion positioned on the surface of the center, but the metal oxide particle is composed of a single particle, and the surface portion includes a film in which no peak is observed during XRD measurement.

公开(公告)号：US11909032B2

公开(公告)日：2024-02-20

申请号：US16504620

申请日：2019-07-08

Applicant: Samsung Electronics Co., Ltd. ,  Samsung SDI Co., Ltd.

Inventor： Sukgi Hong ,  Byongyong Yu ,  Donghee Yeon ,  Byungjin Choi

IPC: H01M4/00 ,  H01M4/36 ,  C01G53/04 ,  C01G53/00 ,  H01M4/525 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/366 ,  C01G53/04 ,  C01G53/50 ,  H01M4/525 ,  H01M4/628 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/04 ,  C01P2006/40 ,  H01M2004/028

Abstract: A composite cathode active material includes: a core including a plurality of primary particles; and a shell on the core, wherein the primary particles include a first lithium transition metal oxide comprising nickel, the shell includes a first layer and a second layer on the first layer, the first layer includes a first composition containing a first metal, the second layer includes a second composition containing phosphorus, and the first metal includes at least one or more metal, other than nickel, belonging to any of Groups 2 to 5 and Groups 7 to 15 of the Periodic Table of the Elements. Also a cathode, and a lithium battery each including the composite cathode active material, and a method of preparing the composite cathode active material.

公开(公告)号：US11909016B2

公开(公告)日：2024-02-20

申请号：US17890314

申请日：2022-08-18

Applicant: American Hyperform, Inc.

Inventor： William Novis Smith

IPC: H01M10/54 ,  C22B59/00 ,  C01G53/04 ,  C22B7/00 ,  C22B3/08 ,  H01M4/525 ,  H01M10/052 ,  C22B3/22 ,  H01M4/02

CPC classification number: H01M10/54 ,  C01G53/04 ,  C22B3/08 ,  C22B3/22 ,  C22B7/007 ,  C22B59/00 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028

Abstract: A hydrometallurgical process is described that can isolate and recover NIMH battery constituents in high-value form: the nickel and cobalt hydroxides (cathode) as nickel and cobalt hydroxides; elemental nickel and cobalt (metallic anode) as nickel and cobalt hydroxides; rare earth metals (metallic anode) as oxides of rare earth metals, conductive carbon (electrodes) as conductive carbon, and the magnetic nickel-plated steel grids (electrodes) and battery cases in a relatively clean and directly smeltable form. The isolation portion of the process isolates the rare earth metals in oxide form from the nickel hydroxide and the cobalt hydroxide. If present, titanium, aluminum, and yttrium are isolated as oxides with the rare earth metal oxides.