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Patent Agency Ranking
公开(公告)号：KR1020110035003A
公开(公告)日：2011-04-06
申请号：KR1020090092532
申请日：2009-09-29
Applicant: 한국과학기술연구원
Abstract: PURPOSE: A method for preparing a positive electrode active material for a lithium ion secondary battery is provided to reduce manufacturing cost using inexpensive precursors, and to ensure excellent electrical characteristic and charge and discharge capacity. CONSTITUTION: A method for preparing a positive electrode active material for a lithium ion secondary battery comprises the steps of: mixing lithium sources and metal oxides(Mn2O3, Fe2O3, Ni(OH)2 or Co3O4) to perform dry ball milling; heat-treating the obtained mixed powder to synthesize a lithium metal oxide; mixing the obtained intermediate compound with silica(SiO2) and carbon source to perform dry ball milling; and heat-treating the obtained mixed powder to prepare a positive electrode active material(Li2MSiO4/C) in which carbon is coated.
Abstract translation: 目的：提供一种制备用于锂离子二次电池的正极活性物质的方法，以便使用便宜的前体降低制造成本，并且确保优异的电特性和充放电能力。 构成：锂离子二次电池用正极活性物质的制造方法，其特征在于，将锂源和金属氧化物（Mn 2 O 3，Fe 2 O 3，Ni（OH）2或Co 3 O 4）混合，进行干式球磨; 对获得的混合粉末进行热处理以合成锂金属氧化物; 将获得的中间体化合物与二氧化硅（SiO 2）和碳源混合以进行干球磨; 对得到的混合粉末进行热处理，制备涂布有碳的正极活性物质（Li 2 MSiO 4 / C）。
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公开(公告)号：KR1020170035666A
公开(公告)日：2017-03-31
申请号：KR1020150134852
申请日：2015-09-23
Applicant: 한국과학기술연구원
Abstract: 본발명에따르면, 나노와이어를핫엠보싱공정을통해고분자기재내에내재시킬수 있으며, 나노와이어의크기, 배열, 위치및 간격을정확히제어할수 있기때문에, 신뢰성및 재현성이우수하도록하이브리드필름을제조할수 있다. 또한, 단일공정및 간단한조작을통해손쉽게하이브리드필름을제조할수 있으므로, 포토디텍터(photodetector) 뿐만아니라 CTF 메모리를비롯한다양한반도체소자, 이미지센서, 발광다이오드및 레이저다이오드등 다양한분야에효과적으로사용할수 있다.
Abstract translation: 根据本发明，通过热压印过程中，纳米线，和sikilsu在聚合物基材料中固有的，因为可以精确地控制纳米线的尺寸，布置，位置和间距，可以制备一种混合膜可靠性和可重复性，以yiwoosu。 此外，由于它可以很容易地在一个步骤和简单的操作制造杂化膜，所述光检测器（光检测器），以及能够有效地用于各种领域，例如各种半导体器件，图像传感器，发光二极管和激光二极管，包括CTF存储器。
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公开(公告)号：KR1020100004797A
公开(公告)日：2010-01-13
申请号：KR1020080065147
申请日：2008-07-04
Applicant: 한국과학기술연구원
CPC classification number: H01M4/366 , C01B25/375 , H01M4/5825 , H01M4/583 , H01M4/624 , H01M2004/028 , Y02E60/122
Abstract: PURPOSE: A method for manufacturing olivine-type positive electrode powder is provided to improve electric conductivity of a positive active material powder and to effectively control the growth of particles during thermal treatment of the active material. CONSTITUTION: A method for manufacturing a LiFePO4 compound of an olivine structure comprises the steps of: (i) mixing a lithium compound, iron compound and phosphorus compound, and heat-treating the mixture to prepare precursor powder; (ii) impregnating carbon source in the powder and drying the impregnated powder; (iii) dry milling the dried powder; and (iv) heat-treating the powder in an inactivation or reducing atmosphere.
Abstract translation: 目的：提供橄榄石型正极粉末的制造方法，以提高正极活性物质粉末的导电性，并有效控制活性物质热处理过程中颗粒的生长。 构成：一种橄榄石结构的LiFePO 4化合物的制造方法，其特征在于，包括：（i）将锂化合物，铁化合物与磷化合物混合，对该混合物进行热处理，制备前体粉末; （ii）将碳源浸渍在粉末中并干燥浸渍的粉末; （iii）将干粉干燥研磨; 和（iv）在灭活或还原气氛中对粉末进行热处理。
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公开(公告)号：KR101767254B1
公开(公告)日：2017-08-10
申请号：KR1020150134852
申请日：2015-09-23
Applicant: 한국과학기술연구원
Abstract: 본발명에따르면, 나노와이어를핫엠보싱공정을통해고분자기재내에내재시킬수 있으며, 나노와이어의크기, 배열, 위치및 간격을정확히제어할수 있기때문에, 신뢰성및 재현성이우수하도록하이브리드필름을제조할수 있다. 또한, 단일공정및 간단한조작을통해손쉽게하이브리드필름을제조할수 있으므로, 포토디텍터(photodetector) 뿐만아니라 CTF 메모리를비롯한다양한반도체소자, 이미지센서, 발광다이오드및 레이저다이오드등 다양한분야에효과적으로사용할수 있다.
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公开(公告)号：KR101122715B1
公开(公告)日：2012-03-07
申请号：KR1020090092532
申请日：2009-09-29
Applicant: 한국과학기술연구원
Abstract: 본발명은리튬이차전지양극활물질의제조방법에관한것으로, 더욱구체적으로는출발물질로서리튬소스및 금속산화물(MnO, FeO, Ni(OH)또는 CoO)을혼합하여건식볼밀링을수행하는단계(단계 1); 상기단계 1에서얻어진혼합분말을대기중에서 550 - 750 ℃에서 1차열처리하여중간화합물인리튬금속산화물을합성하는단계(단계 2); 상기단계 2에서얻어진중간화합물을실리카(SiO) 및카본소스와혼합하여건식볼밀링을수행하는단계(단계 3); 및상기단계 3에서얻어진혼합분말을 550 - 800 ℃, 아르곤/수소분위기에서 2차열처리하여카본이코팅된양극활물질[LiMSiO/C(여기서, M=Mn, Fe, Ni 또는 Co)]을제조하는단계(단계 4)를포함하는리튬이차전지양극활물질의제조방법에관한것이다.
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