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公开(公告)号：KR1020060133615A
公开(公告)日：2006-12-27
申请号：KR1020050053304
申请日：2005-06-21
CPC classification number: H01M4/5815 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/582 , H01M4/5825 , H01M4/62 , H01M10/052
Abstract: Provided are a positive electrode active material for a lithium secondary battery to improve the charge/discharge characteristics, lifetime characteristics, high voltage characteristics and high rate characteristics of a battery, and its preparation method. The positive electrode active material contains a fluorine compound in the form of a complex in a positive electrode active material. The method comprises the steps of adding a solution wherein F is dissolved to a fine powder element precursor solution of high dispersity to react it at 50-150 deg.C for 1-48 hours, thereby preparing a fluorine compound fine powder in the form of a complex having a high dispersity; drying the fluorine compound fine powder at 110 deg.C for 6-24 hours; heat treating the dried one at 150-900 deg.C for 1-20 hours under the oxidative or reductive condition or in vacuum; and adding 0.05-10 parts by weight of the heat treated one to 100 parts by weight of a positive electrode active material and mixing them uniformly.
Abstract translation: 提供一种用于锂二次电池的正极活性物质及其制备方法，其特征在于提高电池的充放电特性，寿命特性，高电压特性，高电流特性。 正极活性物质在正极活性物质中含有络合物形式的氟化合物。 该方法包括以下步骤：将F溶解到高分散度的细粉末前体溶液中，在50-150℃下反应1-48小时，由此制备氟化合物细粉末 具有高分散性的复合物; 将氟化合物细粉末在110℃干燥6-24小时; 在氧化或还原条件下或真空中，将干燥的物质在150-900℃下热处理1-20小时; 并加入0.05-10重量份的热处理1至100重量份的正极活性物质并均匀混合。
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公开(公告)号：KR100701532B1
公开(公告)日：2007-03-29
申请号：KR1020050053304
申请日：2005-06-21
CPC classification number: H01M4/5815 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/582 , H01M4/5825 , H01M4/62 , H01M10/052
Abstract: 본 발명은 리튬이차전지용 양극 활물질에 관한 것으로서 양극 활물질 첨가제로 미세분말 불소화합물을 합성하고 이를 양극 활물질에 첨가하여 불소화합물이 첨가된 리튬이차전지용 양극 활물질을 제조함으로써 전지의 충방전 특성, 수명특성, 고전압특성, 고율특성 등이 향상된 구조적으로 안정한 리튬이차전지용 양극 활물질을 제공할 수 있다.
양극 활물질, 양극 활물질 첨가제, 불소화합물, 고율특성, 고전압특성
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