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    • 1. 发明公开
    • 리튬 이차 전지용 양극 활물질 및 이의 제조방법
    • 用于二次电池的阴极活性材料及其制备方法
    • KR1020120026015A
    • 2012-03-16
    • KR1020110091133
    • 2011-09-08
    • 에스케이이노베이션 주식회사
    • 오성우선희영도유림이형복
    • H01M4/525C10G53/00C10G51/00H01M10/052
    • H01M4/525C01D15/02C01G51/40C01G51/42C01G53/10C01G53/40C01P2006/10C01P2006/11C01P2006/12C01P2006/40H01M4/1391H01M4/26H01M4/52H01M4/625H01M10/052H01M2004/028
    • PURPOSE: A positive electrode active material for lithium secondary battery and a manufacturing method thereof are provided to improve electrochemical characteristic and high-rate characteristic by increasing diffusion velocity of the lithium ion within the positive electrode active material structure. CONSTITUTION: A manufacturing method of positive electrode active material for lithium secondary battery comprises the following steps: manufacturing active material precursor by mixing reacting raw material including metallic aqueous solution which contains nickel source, cobalt source, and aluminum source, and ammonia solution, sucrose, and pH adjusting agent; mixing the active material precursor with lithium source; and manufacturing anodic active material which is represented by chemical formula 1: Li_(1+z)Ni_(1-x-y)Co_xAl_yO_2 by plasticizing the mixture. In the chemical formula 1, z stands for real number of 0-0.3, x stands for real number of 0.05-0.3, y stands for real number which exceeds 0 and equal to or less than 0.3, 1-x-y is real number of 0.4 to 0.95.
    • 目的:提供一种锂二次电池用正极活性物质及其制造方法,其通过增加正极活性物质结构内的锂离子的扩散速度来提高电化学特性和高速率特性。 构成:锂二次电池用正极活性物质的制造方法,包括以下步骤:通过将包含镍源,钴源和铝源的金属水溶液的原料与氨溶液,蔗糖, 和pH调节剂; 将活性物质前体与锂源混合; 并通过使混合物增塑来制造由化学式1:Li(1 + z)Ni_(1-x-y)Co_xAl_yO_2表示的阳极活性材料。 在化学式1中,z表示0-0.3的实数,x表示实数为0.05-0.3,y表示实数超过0且等于或小于0.3,1-xy是实数0.4 至0.95。