-
公开(公告)号：KR101468582B1
公开(公告)日：2014-12-03
申请号：KR1020130014537
申请日：2013-02-08
Applicant: 한국화학연구원
IPC: H01M4/1395 , H01M4/58 , H01M10/02
Abstract: 본발명은다공성실리카지지체를이용한전극활물질의제조방법및 이에따라제조되는전극활물질에관한것으로, 상세하게는리튬전구체, 망간전구체, 킬레이트제, 중합조제, 및환원제를용매에첨가하고혼합하는단계(단계 1); 상기단계 1의혼합물에다공성실리카지지체를첨가및 혼합하여반응시키는단계(단계 2); 및상기단계 2의반응물을환원분위기에서열처리하는단계(단계 3)를포함하는다공성실리카지지체를이용한전극활물질의제조방법을제공한다. 본발명에따른제조방법은전극활물질로서사용될수 있는규산염계망간리튬화합물을제조할수 있다. 이때, 본발명에따라제조된규산염계망간리튬화합물은전극활물질로이용되는경우, 기존의일반적인실리카재료를사용하여제작된규산염계망간리튬화합물과비교하여초기용량면에서우수한특성을나타내는효과가있다. 또한, 본발명에따라제조된규산염계망간리튬화합물은카본코팅, 이종원소도핑, 볼밀등의후처리공정이필요하지않기때문에저비용으로리튬이차전지전극활물질을제조할수 있는장점이있다.
Abstract translation: 本发明涉及使用多孔二氧化硅载体的电极活性物质及其制造的电极活性物质的制造方法。 具体而言，本发明提供使用多孔二氧化硅载体的电极活性物质的制造方法，其包括在溶剂中添加锂前体，锰前体，螯合剂，聚合剂和还原剂的工序，以及 混合（步骤1）; 在步骤1的混合物中加入和混合多孔二氧化硅载体并反应（步骤2）的步骤; 以及在还原条件下热处理步骤2的产物的步骤。 根据本发明的制造方法可以制造可用作电极活性材料的硅酸盐基锰锂化合物。 当将根据本发明制造的硅酸盐基锰锂化合物用作电极活性材料时，与通过使用现有的一般化合物制造的硅酸盐基锰锂化合物相比，具有优异的初始容量性能 二氧化硅材料。 此外，根据本发明制造的硅酸盐基锰锂化合物不需要诸如碳涂覆，异质元素掺杂，球磨等的后处理工艺，并且因此提供能够制造电极活性的优点 锂二次电池的材料成本低。
-
公开(公告)号：KR101434459B1
公开(公告)日：2014-08-26
申请号：KR1020130098581
申请日：2013-08-20
Applicant: 한국화학연구원
Abstract: The present invention relates to a novel bromosilicate-based phosphor for near-ultraviolet excitation, a method of preparing the same, and a light-emitting device using the same. Particularly, the present invention relates to (Ca_3_-x,Eu_x)SiO_4Br_2 phosphor, (Ca_3-x-yMg_yEu_x)SiO_4Br_2 phosphor, (Ca_3_-x-_yMg_yEu_x_)SiO_4(Br_2_-_zD_z) phosphor, a method of preparing the same, and a light-emitting device using the same. The phosphor according to the present invention absorbs lights in 250-450 nm in a near-ultraviolet region having high excitation efficiency, emits lights in 450-750 nm in a whole visible region, and exhibits high emission luminance, and may be usefully used as a phosphor of a light-emitting device for near-ultraviolet excitation. Particularly, the phosphor of the present invention may be usefully used as a phosphor of a white emitting diode for near-ultraviolet excitation.
Abstract translation: 本发明涉及一种用于近紫外激发的新型溴硅酸盐系荧光体及其制备方法以及使用其的发光装置。 特别地，本发明涉及（Ca_3_-x，Eu_x）SiO_4Br_2荧光体，（Ca_3-x-yMg_yEu_x）SiO_4Br_2荧光体，（Ca_3_-x-_yMg_yEu_x_）SiO_4（Br_2_-zD_z）荧光粉，其制备方法， 使用该发光装置的发光装置。 根据本发明的荧光体在具有高激发效率的近紫外区域中吸收250-450nm的光，在整个可见光区域发射450-750nm的光，并且显示高的发光亮度，并且可以有效地用作 用于近紫外激发的发光装置的荧光体。 特别地，本发明的荧光体可以有用地用作用于近紫外激发的白色发光二极管的荧光体。
-
公开(公告)号：KR1020140101183A
公开(公告)日：2014-08-19
申请号：KR1020130014537
申请日：2013-02-08
Applicant: 한국화학연구원
IPC: H01M4/1395 , H01M4/58 , H01M10/02
CPC classification number: C01B33/20 , C01P2006/40 , H01M4/48 , H01M4/505 , H01M10/052 , Y02E60/12
Abstract: The present invention relates to a manufacturing method of an electrode active material using a porous silica support and an electrode active material manufactured thereby. Specifically, the present invention provides a manufacturing method of an electrode active material using a porous silica support, which comprises a step of adding a lithium precursor, a manganese precursor, a chelating agent, a polymerizing agent and an reducing agent in a solvent, and mixing (step 1); a step of adding and mixing a porous silica support in the mixture of step 1, and reacting (step 2); and a step of thermally processing the product of step 2 in a reduction condition. The manufacturing method according to the present invention can manufacture a silicate-based manganese lithium compound, which can be used as an electrode active material. When the silicate-based manganese lithium compound manufactured according to the present invention is used as an electrode active material, it has an effect of showing an excellent property in the initial capacity in comparison with the silicate-based manganese lithium compound manufactured by using existing general silica materials. Also, the silicate-based manganese lithium compound manufactured according to the present invention does not require post-treatment processes such as carbon coating, hetero-element doping, ball milling, etc., and, therefore, providing advantages capable of manufacturing an electrode active material for a lithium secondary battery at low costs.
Abstract translation: 本发明涉及使用多孔二氧化硅载体的电极活性物质及其制造的电极活性物质的制造方法。 具体而言，本发明提供使用多孔二氧化硅载体的电极活性物质的制造方法，其包括在溶剂中添加锂前体，锰前体，螯合剂，聚合剂和还原剂的工序，以及 混合（步骤1）; 在步骤1的混合物中加入和混合多孔二氧化硅载体并反应（步骤2）的步骤; 以及在还原条件下热处理步骤2的产物的步骤。 根据本发明的制造方法可以制造可用作电极活性材料的硅酸盐基锰锂化合物。 当将根据本发明制造的硅酸盐基锰锂化合物用作电极活性材料时，与通过使用现有的一般化合物制造的硅酸盐基锰锂化合物相比，具有优异的初始容量性能 二氧化硅材料。 此外，根据本发明制造的硅酸盐基锰锂化合物不需要诸如碳涂覆，异质元素掺杂，球磨等的后处理工艺，并且因此提供能够制造电极活性的优点 锂二次电池的材料成本低。
-
公开(公告)号：KR101164035B1
公开(公告)日：2012-07-18
申请号：KR1020090111514
申请日：2009-11-18
Applicant: 한국화학연구원
Abstract: 본 발명은 가시광 영역에서 투과도가 우수한 아연/망간 실리케이트계 투명 녹색 형광막의 제조 방법에 관한 것으로서, 보다 상세하게 설명을 하면, 서브마이크론(submicron) 이하의 입자크기를 갖는 구형 실리카를 제조한 후, 이를 아연 전구체와 망간 전구체 등을 포함하는 수용액에 첨가하여 제조한 아연/망간 실리케이트 겔을 소성하여 녹색의 형광체를 제조하거나 또는 상기 아연/망간 실리케이트 겔을 용액코팅하여 투명 녹색 형광막을 제조하는 방법에 관한 것이다. 본 발명의 제조방법으로 제조된 투명 녹색 형광막은 발광 특성 및 분산 특성이 우수하고, 가시광 영역에서 투과도가 우수하기 때문에, 투명 디스플레이 소자에 사용하기에 적합하다. 또한, 기존의 진공증착 시스템을 이용하여 제조한 박막형 형광막에 비교하여 발광효율 및 투광성이 높을 뿐만 아니라, 적색에서부터 청색까지 다양한 발광색을 변화시킬 수 있어서, 백색 디스플레이를 구현할 수 있다.
형광입자, 형광막, 코어-쉘, 스핀코팅, 발광, 아연/망간 실리케이트-
公开(公告)号：KR1020120072548A
公开(公告)日：2012-07-04
申请号：KR1020100134342
申请日：2010-12-24
Applicant: 한국화학연구원
Abstract: PURPOSE: A calcium silicophosphate-based green electroluminescent phosphor is provided to be excited by an excitation light source of 250-450 nm, thereby imparting excellent luminescent brightness, and color purity. CONSTITUTION: A manufacturing method of calcium silicophosphate-based green electroluminescent phosphor comprises: a step of manufacturing a precursor mixture by weighing calcium precursor, silicon precursor, phosphorous precursor, and europium precursor within the content range of chemical formula 1: Ca_(7-x)(SiO_4)_2(PO_4)_2:xEu (0
Abstract translation: 目的：提供一种基于硅磷酸钙的绿色电致发光荧光体，由250-450nm的激发光源激发，从而赋予发光亮度优异和色纯度。 构成：基于硅磷酸钙的绿色电致发光荧光体的制造方法包括：通过在化学式1的含量范围内称量钙前体，硅前体，磷前体和铕前体制备前体混合物的步骤：Ca（7-x ）（SiO_4）_2（PO_4）_2：xEu（0
-
Patent Agency Ranking
公开(公告)号：KR101026533B1
公开(公告)日：2011-04-01
申请号：KR1020090023603
申请日：2009-03-19
Applicant: 한국화학연구원
IPC: C09K11/78
Abstract: 본 발명은 신규한 자외선 여기용 적색 형광체로서, 더욱 상세하게는 바륨, 이트륨산화물을 함유하여 이루어진 모체와, 유로퓸을 활성원소로 이용하고 마그네슘을 첨가 이온으로 사용한 적색 형광체에 관한 것이다.
본 발명에 따른 적색 형광체는 250 ~ 300 nm 범위의 자외선 영역에서 높은 흡수 피크를 나타내고 우수한 색순도 특성 및 화학적으로 안정한 산화물을 기반으로한 조성물로서 고효율 적색 발광 물질로의 적용이 가능하다.
적색형광체, 자외선, 바륨, 이트륨, 유로퓸, 마그네슘-
公开(公告)号：KR100907090B1
公开(公告)日：2009-07-09
申请号：KR1020070137552
申请日：2007-12-26
Applicant: 한국화학연구원
IPC: C09K11/55
Abstract: 본 발명은 칼슘, 스트론튬, 바나듐 원소를 함유하여 이루어진 모체와, 유로퓸을 활성원소로 함유하는 적색형광체로, 250 nm 이상의 장파장 자외선 영역에서 높은 발광 효율을 나타내므로 자외선 여기 발광 다이오드를 여기 에너지원으로 사용 시 유용한 바나데이트계 적색형광체와 이의 제조방법에 관한 것이다.
적색 형광체, 장파장 자외선 여기용, 바나데이트-
公开(公告)号：KR1020090069773A
公开(公告)日：2009-07-01
申请号：KR1020070137556
申请日：2007-12-26
Applicant: 한국화학연구원
IPC: C09K11/55
Abstract: A red-emitting chlorapatite phosphor is provided to ensure red light emitting by excitation light source of 350~500 nm and excellent luminescent brightness, and to be applicable to a light emitting device for an ultraviolet excitation light emitting diode. A red-emitting chlorapatite phosphor has a composition represented by chemical formula 1: Ca_(5-2x)Na_x(PO_4)_3Cl : Eu_x. In the chemical formula 1, 0.3
Abstract translation: 提供红色发光的氯磷灰石荧光体，以确保350〜500nm的激发光源发出的红色发光和优异的发光亮度，适用于紫外线激发发光二极管的发光装置。 发红色磷灰石荧光体具有由化学式1表示的组成：Ca_（5-2x）Na_x（PO_4）_3Cl：Eu_x。 在化学式1中，0.3 <= x <= 1.2。 红色发射荧光体在350〜500nm激发。 制备红色发射氯磷灰石荧光体的方法包括以下步骤：在由化学式1表示的区域中称量碳酸钙，碳酸钠，磷酸前体，氯化前体和铕前体以制备混合物; 在100〜150℃下干燥混合物; 并在1000〜1300℃下对干燥的混合物进行热处理。
-
公开(公告)号：KR100783780B1
公开(公告)日：2007-12-07
申请号：KR1020060111544
申请日：2006-11-13
Applicant: 한국화학연구원
Abstract: A red phosphor, a LED(Light Emitting Diode) lamp using the red phosphor, and a CCFL(Cold Cathode Fluorescent) lamp using the red phosphor are provided to improve color purity and color rendition. A red phosphor has a composition represented by Sr_(1-x-y-z) Mg_x B4O7: Sm_y Eu_z, wherein x is a number of 0-0.1; y is a number of 0.0001-0.05; and z is a number of 0.0001-0.05. Preferably x is a number of 0.01-0.05; y is a number of 0.005-0.02; and z is a number of 0.002-0.01.
Abstract translation: 使用红色荧光体的红色荧光体，使用红色荧光体的LED（发光二极管）灯和使用红色荧光体的CCFL（冷阴极荧光体）灯来提高色纯度和显色性。 红色荧光体具有由Sr_（1-x-y-z）Mg_x B4O7：Sm_y Eu_z表示的组成，其中x是0-0.1的数; y为0.0001-0.05; z为0.0001-0.05的数。 优选地，x是0.01-0.05的数; y是0.005-0.02的数; z为0.002-0.01。
-
公开(公告)号：KR100746311B1
公开(公告)日：2007-08-06
申请号：KR1020030020858
申请日：2003-04-02
Applicant: 한국화학연구원
CPC classification number: B01J23/74 , B01J23/755 , B82Y30/00 , B82Y40/00 , C01B32/166 , C01B2202/36 , D01F9/12 , Y02P20/544
Abstract: This invention relates to a method to induce growth of carbon nanotubes using a liquid phased-hydrocarbon based material under a critical range of equilibrating between liquid and gas phases, thereby easily manipulating a required carbon source. This invention also relates to a method to facilitate easy generation of a carbon backbone of the carbon nanotube because the reaction is performed in the presence of a metal nanoparticle or a metal compound capable of spontaneously generating a seed catalyst which stimulates the growth of carbon nanotubes as well as secures safety enough for the industrial application by using a mild reaction condition within the critical range. Accordingly, this invention can produce the carbon nanotube with high transition efficiency under a mild condition with a relatively lower temperature and pressure than those in conventional gas phased-methods without using a costly equipment, thereby cost-effectively producing the carbon nanotube in large quantities.
-
-
-
-
-
-
-
-
-
Search Results
150
records
(took 0.024 seconds)
