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    POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    3.
    发明公开
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：EP4459713A1

    公开(公告)日：2024-11-06

    申请号：EP22915523.9

    申请日：2022-10-31

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： FUKUTOME, Daiki ,  KAWADA, Hiroshi

    IPC分类号： H01M4/525 ,  H01M4/505

    摘要： This non-aqueous electrolyte secondary battery positive electrode active material is characterized by including a lithium-containing complex oxide composed of secondary particles formed by flocculation of primary particles, the lithium-containing complex oxide including Ni, Mn, and an additive element M, the additive element M including at least any one element selected from Nb, Mo, Ta, and W, the variation coefficient (standard deviation/arithmetic mean) of the concentration of the at least one element of the Nb, the Mo, the Ta, and the W when the secondary particle cross-section is subjected to EPMA analysis being 0.7 or less, and the standard deviation of the primary particle size being less than 0.05.

    SODIUM ION BATTERY POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR AND USE THEREOF
    6.
    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
    10.
    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.