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    SODIUM ION BATTERY POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF
    4.
    发明公开
    SODIUM ION BATTERY POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF 审中-公开

    公开(公告)号：EP4455093A1

    公开(公告)日：2024-10-30

    申请号：EP23916603.6

    申请日：2023-04-10

    申请人： Jingmen Gem Co., Ltd ,  GEM Co., Ltd.

    发明人： XU, Kaihua ,  ZHANG, Kun ,  SUN, Zhaojian ,  LI, Cong ,  WANG, Wenguang

    IPC分类号： C01G53/00 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M4/131 ,  H01M10/054

    摘要： Provided are a cathode material for sodium-ion batteries, a preparation method therefor, and an application thereof, and the preparation method comprises the following steps: (1) mixing a nickel source, a manganese source, and a magnesium source to obtain a ternary salt solution, adding the ternary salt solution, a precipitating agent, a complexing agent, a boron source solution, and an organic additive to a reaction vessel in parallel flow, and performing a reaction to obtain a B-doped radially-packed hydroxide precursor; and (2) mixing the B-doped radially-packed hydroxide precursor obtained in step (1) with a sodium source, and performing sintering treatment to obtain the cathode material for sodium-ion batteries. In the present application, the chemical composition (B-doping) and microscopic morphology (radial-packed arrangement of primary particles) of the cathode material are synergistically modified and regulated by optimizing the co-precipitation process, so as to improve the element distribution uniformity, structure stability, cycle performance, rate capability, and production efficiency of the cathode material for sodium-ion batteries simultaneously.

    METHOD OF PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    5.
    发明公开
    METHOD OF PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE PLATE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：EP4450462A1

    公开(公告)日：2024-10-23

    申请号：EP24162310.7

    申请日：2024-03-08

    申请人： Prime Planet Energy & Solutions, Inc.

    发明人： TAKAHASHI, Keiichi

    IPC分类号： C01G53/00 ,  H01M4/505

    摘要： The present disclosure relates to a method of producing a positive electrode active material, the method comprising: a preparation step that involves preparing aggregate particles including a nickel-cobalt-manganese-based compound having a ratio of nickel of 75 mol% or more; a first treatment step that involves treating a surface of the aggregate particles with a fluorine-based compound at a temperature of 80°C or more; and a second treatment step that involves treating the surface of the aggregate particles after the first treatment step, with at least one selected from the group consisting of a lithium-containing metal oxide and lithium borate. The present disclosure makes it possible to provide a positive electrode active material capable of reducing degradation of storage properties, a method of producing the same, as well as a positive electrode plate (20) and a non-aqueous electrolyte secondary battery (100) including the same.

    METHOD FOR PREPARING SECONDARY BATTERY MATERIAL FROM BLACK MASS
    7.
    发明公开
    METHOD FOR PREPARING SECONDARY BATTERY MATERIAL FROM BLACK MASS 审中-公开

    公开(公告)号：EP4443601A1

    公开(公告)日：2024-10-09

    申请号：EP23751522.6

    申请日：2023-03-27

    申请人： Korea Zinc Co., Ltd. ,  Kemco

    发明人： CHOI, Chang Young ,  LEE, Je Joong

    IPC分类号： H01M10/54 ,  C01D15/02 ,  C01G53/00 ,  C01G45/00

    CPC分类号： Y02W30/84 ,  Y02P10/20 ,  C01D15/02 ,  H01M10/54 ,  C01G53/00 ,  C01G45/00

    摘要： The embodiments disclosed herein relates to a method for producing a secondary battery material from black mass. The method for producing a secondary battery material from black mass according to one embodiment includes a roasting step of roasting black mass, a pre-extraction step of leaching a roasted black mass roasted in the roasting step with water to separate a lithium solution and a cake, a first evaporation concentration step of producing lithium carbonate crystals by evaporating and concentrating the lithium solution produced in the pre-extraction step, a leaching step of leaching the cake separated in the pre-extraction step, a first purification step of removing copper and aluminum from the leaching solution produced in the leaching step, a post-extraction step of neutralizing the solution prepared in the first purification step and separating the solution into a lithium solution and a cake containing Ni, Co, and Mn (NCM cake), a feeding step of feeding the lithium carbonate crystals produced in the first evaporation concentration step and the lithium solution prepared in the post-extraction step to a lithium hydroxide production step.

    METHOD FOR PRODUCING AQUEOUS SOLUTION CONTAINING NICKEL OR COBALT
    8.
    发明公开
    METHOD FOR PRODUCING AQUEOUS SOLUTION CONTAINING NICKEL OR COBALT 审中-公开

    公开(公告)号：EP4442648A1

    公开(公告)日：2024-10-09

    申请号：EP23751837.8

    申请日：2023-03-28

    申请人： Korea Zinc Co., Ltd. ,  Kemco

    发明人： CHOI, Heon Sik ,  JOO, Jae Hoon ,  CHOI, Chang Young

    IPC分类号： C01G53/00 ,  C22B3/04 ,  C22B3/00 ,  H01M4/525 ,  H01M4/02

    CPC分类号： Y02P10/20 ,  H01M4/02 ,  H01M4/525 ,  C22B3/00 ,  C22B3/04 ,  C01G53/00

    摘要： A method for producing an aqueous solution containing nickel or cobalt includes: (A) a leaching step, which includes a first atmospheric pressure heating leaching step and a second atmospheric pressure heating leaching step, in which a raw material is heated and leached under an atmospheric pressure to form a leachate solution containing nickel, cobalt, and impurities; (B) a first extraction step of separating the leachate solution into a first filtrate containing nickel and impurities and a first organic layer containing cobalt and impurities by adding a first solvent extractant to the leachate solution; (C-i) a precipitation removal step of precipitating and removing impurities including magnesium, calcium, or a mixture thereof by adding a precipitating agent to the first filtrate; and (D-i) a target material precipitation step of selectively precipitating a nickel cake containing nickel by adding a neutralizing agent to the first filtrate.