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    • 45. 发明公开
    • 리튬 이차 전지용 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지
    • 用于可充电锂电池的正极活性材料,其制备方法和包括其的可充电锂电池
    • KR1020120026822A
    • 2012-03-20
    • KR1020100088964
    • 2010-09-10
    • 울산과학기술원 산학협력단
    • 송현곤이명희김진영박수진조재필
    • H01M4/58H01M4/583H01M10/0525C01B25/40
    • H01M4/625H01M4/136H01M4/1397H01M4/366H01M4/5825H01M10/0525
    • PURPOSE: An anodic active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including thereof are provided to improve accessibility of the lithium ion by having hollow structure. CONSTITUTION: An anodic active material comprises primary particles(1) including compound which can insert and separate lithium and a secondary particle(10) which is formed by aggregation of the first particles. The second particle has a hollow structure in core portion. A manufacturing method of the anodic active material comprises the following steps: forming a first mixture including a first precipitate by mixing lithium supply source, phosphoric acid supply source, and solvent; preparing a second mixture which mixes carbon source, iron supply source, and solvent; forming a second precipitate by mixing the first mixture and the second mixture; and forming coprecipitate of the first and second precipitates.
    • 目的:提供一种用于锂二次电池的阳极活性材料,其制造方法和包含锂二次电池的锂二次电池,以通过中空结构改善锂离子的可接近性。 构成:阳极活性材料包括一次粒子(1),其包括可插入和分离锂的化合物和通过第一颗粒的聚集形成的二次粒子(10)。 第二颗粒在芯部分具有中空结构。 阳极活性物质的制造方法包括以下步骤:通过混合锂供应源,磷酸供应源和溶剂,形成包含第一沉淀物的第一混合物; 制备混合碳源,铁源和溶剂的第二混合物; 通过混合第一混合物和第二混合物形成第二沉淀物; 并形成第一和第二沉淀物的共沉淀物。