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    • 3. 发明公开
    • 리튬 이온 이차 전지용 양극 활물질의 제조 방법
    • 用于锂离子二次电池制备阴极活性材料的方法
    • KR1020120096251A
    • 2012-08-30
    • KR1020110015549
    • 2011-02-22
    • 한국과학기술연구원
    • 조원일이영림류승호송민섭
    • H01M4/505H01M4/525H01M4/583H01M10/0525
    • C01B33/20C01B32/05C01P2004/80C01P2006/40H01M4/366H01M4/5825H01M4/587H01M10/0525Y02E60/122
    • PURPOSE: A manufacturing method of a positive electrode active material comprises a positive electrode active material with excellent charging/discharging efficiency according to cycle increase at room temperature and high capacity by low cost. CONSTITUTION: A manufacturing method of a positive electrode active material comprises a step of stirring silicon precursor compound which is an alkyl silicate, and a transition metal precursor compound which is a metal acetate or oxalate of metals selected from a lithium precursor compound, which is lithium acetate or lithium oxalate, manganese, iron, nickel, and cobalt; a step of obtaining powder by drying the mixture; a step of conducting wet ball milling by adding carbon source and non-polar organic solvent to the powder, and wet ball milling the same; and a step of heat-treating the wet ball milled powder.
    • 目的:正极活性物质的制造方法包括具有优异的充放电效率的正极活性物质,其根据室温下的循环增加和低容量的高容量。 构成:正极活性物质的制造方法包括搅拌作为烷基硅酸盐的硅前体化合物的过渡金属前体化合物和作为锂前体化合物的锂金属的过渡金属前体化合物,其为金属乙酸盐或草酸盐,锂前体化合物为锂 乙酸盐或草酸锂,锰,铁,镍和钴; 通过干燥混合物获得粉末的步骤; 通过向粉末中加入碳源和非极性有机溶剂进行湿球磨,并进行湿球磨; 以及对湿球磨粉末进行热处理的步骤。
    • 4. 发明公开
    • 리튬-공기 전지용 탄소계 양극 및 이의 제조 방법
    • 用于锂离子电池的碳基阴极及其制备方法
    • KR1020120105736A
    • 2012-09-26
    • KR1020110023359
    • 2011-03-16
    • 한국과학기술연구원
    • 조원일박창규류승호이선영송민섭이현주
    • H01M12/08B60L11/18
    • Y02E60/128Y02T10/7011H01M4/96H01M4/661H01M4/808H01M4/8668H01M12/08
    • PURPOSE: A carbon-based positive electrode for lithium-air battery is provided to provide a lithium secondary battery with stable charging performance, high energy density and charging capacity near theoretical discharge capacity by comprising optimized pores in which oxidation of lithium is activated. CONSTITUTION: A carbon-based positive electrode for lithium-air battery comprises a current collector of continuous phase, a composition comprised in pores of the current collector, comprising carbon powder and binder resin with a surface area is 500-2000 m^2/g and a pore amount of 0.5-5 cm^3/g. the composition comprises 100-450 parts by weight of carbon powder based on 100 parts by weight of the binder resin. The binder resin is one or more selected from polyvinylidene fluoride, polytetrafluoroethylene, and polytrifluorostyrenesulfonic acid.
    • 目的:提供一种用于锂空气电池的碳基正极,通过包括锂的氧化被激活的优化孔来提供具有稳定的充电性能,高能量密度和接近理论放电容量的充电容量的锂二次电池。 构成:用于锂空气电池的碳基正电极包括连续相集流体,包含在集电器的孔中的组合物,其包含表面积为500-2000m 2 / g的碳粉和粘合剂树脂 孔数为0.5-5cm 3 / g。 基于100重量份的粘合剂树脂,该组合物包含100-450重量份的碳粉末。 粘合剂树脂是选自聚偏二氟乙烯,聚四氟乙烯和聚三氟乙烯磺酸中的一种或多种。
    • 5. 发明授权
    • 바나듐 산화물 제로겔/카본 나노복합체의 제조방법, 이를 포함하는 리튬-황 이차전지 양극 및 이의 제조방법
    • / - V2O5干凝胶和用于可再充电锂硫电池的碳和阴极的纳米复合材料及其制备方法
    • KR101684645B1
    • 2016-12-07
    • KR1020150012611
    • 2015-01-27
    • 한국과학기술연구원
    • 조원일오시형김민섭박경암송민섭도반덩
    • H01M4/48H01M4/583H01M4/131H01M4/1393H01M10/05
    • 본발명에서는리튬-황이차전지와관련된주요문제점의하나인리튬폴리설파이드(lithium polysulfide)의전해질로의용해문제를해결하기위한방법을제공하고자한다. 본발명의방법을이용하면카본블랙상에형성된황이리튬과반응하여리튬폴리설파이드를형성하여, 전해질에녹을때, 전극에포함된 VO-제로겔/카본블랙나노복합체에의애사로잡히게되어폴리설파이드이온이쉽게전해질에녹기못하고전극에그대로위치하게된다. 그렇게되면음극으로확산해가는폴리설파이드의양을획기적으로줄일수 있게되어셔틀반응이억제되고충방전간 과충전의양이줄어들게된다. 또다른리튬-황이차전지의문제점중의하나인황의지극히낮은전기전도도를문제도해결할수 있다.
    • 本发明涉及提供一种解决电解液中多硫化锂溶解问题的方法,这是与可充电锂硫电池相关的主要问题之一。 当使用根据本发明的方法时,在炭黑上形成的硫与锂反应,从而形成多硫化锂。 当多硫化锂溶解在电解质中时,多晶硫化锂被V_2O_5干凝胶和包含在电极中的碳的纳米复合物捕获,因此多硫化物离子不容易溶解在电解质中并保留在电极中。 因此,可以显着降低向阳极扩散的多硫化物的量,因此抑制了穿梭反应,并且减少了充放电之间的过量充电量。 此外,本发明可以解决相当低的导电性的问题,这是与可再充电的锂硫电池相关的另一个主要问题。