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91.发明公开리튬인산철 양극 활물질의 제조방법, 이에 따라 제조되는 리튬인산철 양극 활물질 및 이에 따라 제조되는 2차 전지 有权锂铁磷酸盐阴极活性材料的制备方法，磷酸铁锂阴极材料及其使用的二次电池
公开(公告)号：KR1020140066414A
公开(公告)日：2014-06-02
申请号：KR1020120133605
申请日：2012-11-23
Applicant: 한국화학연구원
Abstract: Provided in the present invention are a method for producing lithium iron phosphate cathode active materials, lithium iron phosphate cathode active materials produced thereby and production of a secondary battery using the same. For this, the present invention comprises: a process (a first process) of producing a mixed solution by dissolving a lithium precursor, an iron precursor and a phosphate precursor in a solvent having a dispersant with a 20-30 wt% concentration; and a process (a second process) of heating the mixed solution of the first process by using microwaves. Furthermore, the present invention provides crystalline lithium iron phosphate cathode active materials produced through the above-mentioned method, which comprise first particles having a particle diameter between 50 and 300 nm and a second particle having a particle diameter between 1 μm and 50 μm, wherein the second particle includes the plurality of first particles and is a globular shape. The lithium iron phosphate cathode active materials according to the present invention are able to improve electrical conductivity by being made of first particles in a nanometer size and the second particle in a micrometer size, and minimize the possibility of problem occurrence within the electrode production procedures. Furthermore, economic feasibility within the production process can be enhanced by adjusting a mixing ratio of the solution containing a dispersant and controlling a heating condition of the microwaves.
Abstract translation: 本发明提供一种磷酸铁锂正极活性物质的制造方法，由此制造磷酸铁锂正极活性物质，制造使用该磷酸铁锂正极活性物质的二次电池。 为此，本发明包括：通过将锂前体，铁前体和磷酸盐前体溶解在具有浓度为20-30重量％的分散剂的溶剂中来制备混合溶液的方法（第一方法）; 以及通过使用微波加热第一工序的混合溶液的工序（第二工序）。 此外，本发明提供了通过上述方法制备的结晶磷酸铁锂正极活性物质，其包含粒径为50nm至300nm的第一颗粒和粒径为1μm至50μm的第二颗粒，其中 第二颗粒包括多个第一颗粒，并且是球形。 根据本发明的磷酸铁锂正极活性物质能够通过由纳米尺寸的第一颗粒和微米尺寸的第二颗粒制成，并且使在电极制备过程中出现问题的可能性最小化来提高导电性。 此外，通过调节含有分散剂的溶液的混合比例和控制微波的加热条件，可以提高生产过程中的经济可行性。
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公开(公告)号：KR1020130078631A
公开(公告)日：2013-07-10
申请号：KR1020110147679
申请日：2011-12-30
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for manufacturing a green fluorescent body by using porous silica and the green fluorescent body thereof are provided to manufacture an excellent green fluorescent body in particle size, grading distribution, and brightness. CONSTITUTION: A method for manufacturing a green fluorescent body by using porous silica includes a step of manufacturing gel by adding a zinc precursor, a manganese precursor, a gelation agent, and ethylene glycol to a mixture after mixing acid, distilled water, and organic solvent and string the added mixture, a second step of manufacturing gel-contained porous silica by adding porous silica to the gel, a third step of plasticizing the gel-contained porous silica by adding porous silica after drying the gel-contained porous silica by adding porous silica, and a fourth step of performing reduction vatting to the gel-contained porous silica. [Reference numerals] (AA) Example 1; (BB) Comparative example 1; (CC) Comparative example 2
Abstract translation: 目的：提供一种通过使用多孔二氧化硅及其绿色荧光体制造绿色荧光体的方法，以制造粒度，分级分布和亮度优异的绿色荧光体。 构成：通过使用多孔二氧化硅制造绿色荧光体的方法包括在将酸，蒸馏水和有机溶剂混合后，向混合物中加入锌前体，锰前体，凝胶化剂和乙二醇来制造凝胶的步骤 并将添加的混合物串起来，通过向凝胶中加入多孔二氧化硅来制造含凝胶的多孔二氧化硅的第二步骤，通过加入多孔二氧化硅使含凝胶的多孔二氧化硅干燥后，加入多孔二氧化硅， 二氧化硅，以及对含凝胶的多孔二氧化硅进行还原蒸煮的第四步骤。 （标号）（AA）实施例1; （BB）比较例1; （CC）比较例2
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公开(公告)号：KR1020120072547A
公开(公告)日：2012-07-04
申请号：KR1020100134341
申请日：2010-12-24
Applicant: 한국화학연구원
Abstract: PURPOSE: A calcium-borate-silicate-based green electroluminescent phosphor is provided to have high light-absorption performance in UV region with excitation wavelength of 250-450 nm, and to impart high brightness. CONSTITUTION: A calcium-borate-silicate-based green electroluminescent phosphor comprises: a step of manufacturing a precursor mixture by weighing calcium precursor, boron precursor, silicon precursor, and europium precursor within the content range of chemical formula 1: Ca_(11-x)O_11-B_2O_3-4SiO_2:xEu (0
Abstract translation: 目的：提供一种基于硅酸钙 - 硅酸盐的绿色电致发光荧光体，以在激光波长为250-450nm的UV区域具有高的光吸收性能，并赋予高亮度。 构成：基于硼酸钙硅酸盐的绿色电致发光荧光体包括：通过在化学式1的含量范围内称量钙前体，硼前体，硅前体和铕前体制备前体混合物的步骤：Ca（11-x ）O_11-B_2O_3-4SiO_2：xEu（0
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公开(公告)号：KR101116752B1
公开(公告)日：2012-02-22
申请号：KR1020090047065
申请日：2009-05-28
Applicant: 한국화학연구원
Abstract: 본 발명은 역마이셀법을 이용한 금속 나노분말의 제조방법 및 그에 의해서 제조된 나노분말에 관한 것으로, 역마이셀법을 이용하는 것을 특징으로 하는 이산화루테늄 나노분말의 제조방법에 관한 것으로, 균일한 나노입자 크기를 갖는 이산화루테늄 나노분말을 단순한 공정으로 제조할 수 있어 합성이 용이하다.
또한, 균일한 나노입자 크기를 갖고 분산성이 우수한 이산화루테늄 나노분말을 이용하는 잉크 및 이의 제조방법에 대한 것이다.
이산화루테늄, 루테늄, 역마이셀, 나노분말, 잉크-
公开(公告)号：KR101086041B1
公开(公告)日：2011-11-22
申请号：KR1020100030080
申请日：2010-04-01
Applicant: 한국화학연구원
Abstract: 본 발명은 산화가돌리늄 절연막 및 이의 제조방법에 관한 것으로서, 더욱 상세하게 설명하면 절연 특성이 좋은 산화가돌리늄에 이종(異種) 희토류 원소를 추가로 첨가함으로써 절연 특성이 한층 강화되고 특정 발광 스펙트럼을 나타내는 절연막에 관한 것이며, 또한 이러한 절연막을 비진공방식인 스핀코팅 방식을 이용하여 제조하는 방법에 관한 것이다. 본 발명의 산화가돌리늄 절연막은 박막형 트랜지스터의 절연막 등으로 유용하게 적용할 수 있으며, 본 발명에서 제시하는 제조방법은 진공증착방식이 아닌 스핀코팅 방법을 사용함으로써 대형 디스플레이 전자 소자 개발에 적용이 가능하다.
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Patent Agency Ranking
公开(公告)号：KR1020110054751A
公开(公告)日：2011-05-25
申请号：KR1020090111514
申请日：2009-11-18
Applicant: 한국화학연구원
Abstract: PURPOSE: Green phosphor particles and a transparent green phosphor film are provided to ensure excellent light-emitting property and dispersion characteristics, excellent transmissivity in a visible wavelength region, and to diversify emitted light colors from red to blue. CONSTITUTION: A method for preparing a zinc/manganese silicate type transparent green phosphor film comprises the steps of: (i) mixing a mixed aqueous solution, gelation agent, polyethyleneglycol, and spherical silica to prepare a gel including spherical zinc/manganese silicate of a core-shell structure with an average particle diameter of 50~200 nm, wherein zinc ions and manganese ions form a film(shell) on the surface of spherical silica(core) in the gel; and (ii) heat-drying the gel, and pulverizing and sintering the dried material.
Abstract translation: 目的：提供绿色荧光体颗粒和透明绿色荧光体膜，以确保优异的发光性能和分散特性，在可见光波长区域具有优异的透射率，并将发出的光色从红色变蓝。 构成：制备锌/硅酸盐型透明绿色荧光体膜的方法包括以下步骤：（i）将混合的水溶液，凝胶剂，聚乙二醇和球形二氧化硅混合以制备包含球状锌/硅酸锰的凝胶， 核 - 壳结构，其平均粒径为50〜200nm，其中锌离子和锰离子在凝胶中的球形二氧化硅（核心）的表面上形成膜（壳）; 和（ii）将凝胶加热干燥，粉碎和烧结干燥的材料。
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公开(公告)号：KR1020100104896A
公开(公告)日：2010-09-29
申请号：KR1020090023603
申请日：2009-03-19
Applicant: 한국화학연구원
IPC: C09K11/78
Abstract: PURPOSE: A red emitting phosphor for the UV radiation, and a manufacturing method thereof are provided to apply the phosphor as a high efficiency red fluorescent material of a cold cathode fluorescent lamp. CONSTITUTION: A manufacturing method of a red emitting phosphor for the UV radiation marked with chemical formula 1: (Ba_(1-x-y)Mg_x)_3Y_4O_9: Eu_y comprises the following steps: forming a precursor compound including a barium precursor or a magnesium precursor, an yttrium precursor, and a europium precursor; drying the precursor compound; and heat-processing the dried precursor compound.
Abstract translation: 目的：提供用于UV辐射的红色发光荧光体及其制造方法，以将荧光体作为冷阴极荧光灯的高效红色荧光材料。 构成：用化学式1（Ba_（1-xy）Mg_x）_3Y_4O_9：Eu_y标记的紫外线辐射的红色荧光体的制造方法包括以下步骤：形成包含钡前体或镁前体的前体化合物， 钇前体和铕前体; 干燥前体化合物; 并对干燥的前体化合物进行加热处理。
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公开(公告)号：KR100975425B1
公开(公告)日：2010-08-12
申请号：KR1020080027349
申请日：2008-03-25
Applicant: 한국화학연구원
IPC: C09K11/55
Abstract: 본 발명은 칼슘, 스트론튬, 바나듐 원소를 함유하여 이루어진 모체와, 유로퓸 및 알칼리금속을 활성원소로 함유하는 신규의 바나데이트계 적색형광체로, 상기 알칼리금속에 의해 250 nm 이상의 장파장 자외선 영역에서 발광 효율이 월등히 개선되어 자외선 여기 발광 다이오드를 여기 에너지원으로 사용 시 유용한 바나데이트계 적색형광체와 이의 제조방법에 관한 것이다.
적색 형광체, 장파장 자외선 여기용, 바나데이트, 알칼리금속-
公开(公告)号：KR1020090081242A
公开(公告)日：2009-07-28
申请号：KR1020080007216
申请日：2008-01-23
Applicant: 한국화학연구원
IPC: C09K11/77
Abstract: A rare earth element phosphovanadate-based red phosphor, and a cold cathode fluorescent lamp using the phosphor are provided to improve luminous characteristic and color purity at the excitation wavelength of 254 nm. A rare earth element phosphovanadate-based red phosphor excites in the long wavelength UV range of 250 ~ 350 nm and is represented by (Y_(1-a-b-d) Gd_b Sc_d)(P_(1-c) V_c)O4:Eu_a, wherein 0.1
Abstract translation: 提供稀土元素磷酸钒酸盐系红色荧光体和使用该荧光体的冷阴极荧光灯，以提高激发波长为254nm的发光特性和色纯度。 基于磷酸钒酸盐的稀土元素红色荧光体在250〜350nm的长波长UV范围内激发，由（Y_（1-abd）Gd_b Sc_d）（P_（1-c）V_c）O4：Eu_a表示，其中0.1 <= a <= 0.4; 0 <= b <= 0.6; 0.4 <= c <= 1; 0 <= d <= 0.4。
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公开(公告)号：KR100902414B1
公开(公告)日：2009-06-11
申请号：KR1020070132507
申请日：2007-12-17
Applicant: 한국화학연구원
IPC: C09K11/55
Abstract: A barium-magnesium phosphate-based phosphor is provided to ensure high brightness under 200~400 nm excitation and good chromatic purity, and to be useful for an emitting device for the ultraviolet excitation light emitting diode. A method for manufacturing a barium-magnesium phosphate-based phosphor comprises the steps of: manufacturing a mixture by weighting a barium precursor, magnesium precursor, phosphoric acid precursor, manganese precursor and europium precursor in a range represented by formula 1: Ba_(1-x)Mg_(1-y)P_2O_7:xEu, yMn; drying the mixture at 100~150 °C; oxidizing and heat-treating the dried mixture at 800~1100 °C; and pulverizing the mixture, then reducing and heat-treating the mixture at 800~1100 °C in a reducing atmosphere of 1~20 volume % hydrogen. In the chemical formula 1, 0
Abstract translation: 提供了一种磷酸钡镁磷光体，以确保在200〜400nm激发下的高亮度和良好的色纯度，并且可用于紫外激发发光二极管的发射装置。 一种制造磷酸钡镁的荧光体的方法包括以下步骤：通过在由式1表示的范围内加权钡前体，镁前体，磷酸前体，锰前体和铕前体制备混合物：Ba（1- x）Mg_（1-y）P_2O_7：xEu，yMn; 在100〜150℃下干燥混合物; 在800〜1100℃下对干燥的混合物进行氧化和热处理; 粉碎混合物，然后在1〜20体积％氢气的还原气氛中，在800〜1100℃下还原和热处理该混合物。 在化学式1中，0
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