公开(公告)号：KR1020130033060A

公开(公告)日：2013-04-03

申请号：KR1020110096893

申请日：2011-09-26

Applicant: 주식회사 엘지화학 ,  한국과학기술원 ,  전남대학교산학협력단

Inventor： 오송택 ,  강기석 ,  서동화 ,  홍지현 ,  김재국

IPC: H01M4/505 ,  H01M10/052 ,  H01M10/058 ,  H01M4/1391

CPC classification number: H01M4/505 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2006/40 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/62 ,  H01M10/052 ,  Y02P70/54 ,  Y10T29/49108

Abstract: PURPOSE: A positive electrode active material is provided to finish the generation of gas in an initial formation process and to prevent the generation of a large amount of gas during cycles. CONSTITUTION: A positive electrode active material is represented by chemical formula 1, Li{Li_aMn_xM_(1-a-x-y)M'_y}O_2. In chemical formula 1, 0 (1-a)/2, 0

Abstract translation: 目的：提供正极活性物质，以在初始形成过程中完成气体的产生并防止在循环期间产生大量的气体。 构成：正极活性物质由化学式1 Li {Li_aMn_xM_（1-a-x-y）M'_y} O_2表示。 在化学式1中，0 （1-a）/ 2,0

公开(公告)号：KR1020120033383A

公开(公告)日：2012-04-09

申请号：KR1020100094870

申请日：2010-09-30

Applicant: 주식회사 엘지화학 ,  전남대학교산학협력단

Inventor： 오송택 ,  정근창 ,  김재국

IPC: H01M4/505 ,  H01M10/0525 ,  B60L11/18

CPC classification number: Y02E60/122 ,  Y02T10/7011 ,  H01M4/505 ,  B60L11/18 ,  H01M10/0525

Abstract: PURPOSE: Lithium manganese oxide positive electrode is provide to have excellent capacity and cycles properties in 3V region because of lithium manganese oxide dispersed in a positive electrode assembly at the shape of primary particles. CONSTITUTION: Lithium manganese oxide positive electrode comprises lithium manganese oxide with spinel crystal structure in chemical formula 1: Li_(1+x)M_yMn_(2-x-y)O_(4-z)Q_z as positive electrode active material. The lithium manganese oxide has the structure in which primary particles are dispersed in a positive electrode assembly in order to obtain high capacity and excellent cycle properties in 3V region. In chemical formula 1, 0

Abstract translation: 目的：锰酸锂正极在3V区域具有优异的容量和循环性能，因为分散在一次颗粒形状的正极组件中的锰酸锂。 构成：锂锰氧化物正极含有化学式1：Li_（1 + x）M_yMn_（2-x-y）O_（4-z）Q_z作为正极活性物质的具有尖晶石晶体结构的锂锰氧化物。 锂锰氧化物具有将一次粒子分散在正极组件中以在3V区域中获得高容量和优异的循环性能的结构。 在化学式1中，0 <= x <=0.3,0≤y≤1,0≤z≤1，M是选自Al，Mg，Ni，Co，Fe，Cr，V， Ti，Cu，B，Ca，Zn，Zr，Nb，Mo，Sr，Sb，W和Bi，Q为选自N，F，S和Cl中的一种以上。

公开(公告)号：KR101106215B1

公开(公告)日：2012-01-20

申请号：KR1020090031249

申请日：2009-04-10

Applicant: 전남대학교산학협력단

Inventor： 이종숙 ,  김재국 ,  송선주

IPC: C30B1/02 ,  C30B29/16 ,  C01B33/12 ,  H01M8/04

CPC classification number: Y02P70/56

Abstract: 본 발명은 란탄 실리케이트 비정상 입성장을 이용한 ｃ-축 배향성 막 및 단결정 성장 방법에 관한 것으로, 보다 자세하게는 200도 내지 300도의 중저온에서 높은 전도도를 보이는 아파타이트 구조의 란탄 실리케이트를 제조하는 방법에 관한 것이다.
란탄 실리케이트, c-축 방향, 중저온, 전도도, 아파타이트, 비정상 입성장

公开(公告)号：KR1020110014463A

公开(公告)日：2011-02-11

申请号：KR1020090072144

申请日：2009-08-05

Applicant: 전남대학교산학협력단

Inventor： 송선주 ,  김재국 ,  이종숙 ,  문종하

IPC: B01D53/22 ,  C10L3/06

CPC classification number: C01B3/505 ,  B01D53/228 ,  B01D69/12 ,  B01D71/022

Abstract: PURPOSE: A hydrocarbon gas producing system using a dehydrogenation reaction with a bi-layer separation film is provided to obtain a system capable of producing ethylene from ethane. CONSTITUTION: A hydrocarbon gas producing system comprises the following: a bi-layer separation film(110); an oxygen supplier supplying oxygen(122) on one surface of the bi-layer separation film; a steam collector collecting steam(124) from the bi-layer separation film; a first hydrocarbon gas supplier supplying first hydrocarbon gas(132) to the other surface(114) of the bi-layer separation film; and a second hydrocarbon gas collector collecting second hydrocarbon gas(134) from the bi-layer separation film.

Abstract translation: 目的：提供一种使用与双层分离膜进行脱氢反应的烃气体生产系统，以获得能够从乙烷生产乙烯的体系。 构成：碳氢化合物气体生成系统包括：双层分离膜（110）; 在双层分离膜的一个表面上供氧（122）的供氧供应商; 从双层分离膜收集蒸汽（124）的蒸汽收集器; 将第一烃气体（132）供应到双层分离膜的另一个表面（114）的第一烃气供应器; 和从双层分离膜收集第二烃气体（134）的第二烃类气体收集器。

公开(公告)号：KR100999163B1

公开(公告)日：2010-12-07

申请号：KR1020100034889

申请日：2010-04-15

Applicant: 전남대학교산학협력단

Inventor： 김재국 ,  김은정 ,  유인선 ,  임진섭

IPC: B82B3/00 ,  H01L21/28

CPC classification number: H01M4/131 ,  B82B3/00 ,  C01B25/45 ,  H01L21/28 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052

Abstract: PURPOSE: A synthesis method of a nanoelectrode material, and the nanoelectrode material synthesized therefrom are provided to secure the excellent crystalline property of the material only by synthesizing at room temperature. CONSTITUTION: A synthesis method of a nanoelectrode material comprises the following steps: mixing a polyol solvent, a transition metal oxide, a polyacid anion-based compound, a lithium system compound, and a flammable liquid, to form a reaction solution; combusting the reaction solution; and collecting particles after combusting to obtain the nanoelectrode material.

Abstract translation: 目的：提供纳米电极材料的合成方法和由其合成的纳米电极材料，仅通过在室温下合成来确保材料的优异结晶性能。 构成：纳米电极材料的合成方法包括以下步骤：将多元醇溶剂，过渡金属氧化物，多酸阴离子基化合物，锂系化合物和易燃液体混合，形成反应溶液; 燃烧反应溶液; 并在燃烧后收集颗粒以获得纳米电极材料。

公开(公告)号：KR1020150116164A

公开(公告)日：2015-10-15

申请号：KR1020140040987

申请日：2014-04-07

Applicant: 전남대학교산학협력단

Inventor： 이종숙 ,  김선중 ,  김도일 ,  박충년 ,  김재국 ,  신의철 ,  김영헌

IPC: G01N27/04 ,  G01N27/26

Abstract: 본발명은수소저장소재(hydrogen storage material)의화학확산계수(chemical diffusivity, D)를구하는방법과더불어수소저장소재의반응속도론적(kinetics) 정보를정성적및 정량적으로분석하는방법을제공한다. 이에본 발명의공압화학이미턴스분광법(Pneumatochemical Immitacne Spectroscopy, PnIS)으로의분석법과공압화학단속적정법(Pneumatochemical Titration Technique, PnITT)에의하여수소저장소재의화학확산계수및 반응속도론적정보를각각주파수영역과시간영역에서분석하는방법을제공한다. 즉 PCI 수소압력감쇠곡선으로부터분석할시간과주파수범위를결정하고각 수소저장정도(storage of state, SoS)에따른화학확산계수및 반응속도론적정보를도출하였다. 그리고 PnIS 분석법은시간영역의정보를푸리에변환하여주파수영역의정보로변환하여분석하는방법으로서, 수소압력감쇠양상이주파수영역의인덕턴스효과로표현되어이미턴스평면에원의궤적(inductive loop)으로나타나는데이를등가회로(equivalent circuit)로피팅하고또는시각적으로읽어서손쉽게화학확산계수및 반응속도론적정보를구하는것이다. PnIS 분석법의결과는 PnITT의분석결과와화학확산계수및 여러반응속도론적정보가정성적및 정량적으로일치함을확인하였다. 본발명의실시예에서는수소저장소재 Mg/MgH에 PnIS 분석법과 PnITT을적용하였다. Sievert 타입의측정기기로부터 325도에서 Mg/MgH의수소압력감쇠(relaxation) 정보를담은압력-조성-등온(Pressure-Composition-Isothermal, PCI) 데이터를얻었다. 각포인트에서유효부피비율(effective volume ratio) λ값을구하였는데, λ가평탄구간에서음의값을갖지않게선형회귀하고평균을내었다. 수소압력감쇠곡선을푸리에-라플라스변환(Fourier-Laplace transformation)하여, 이미턴스평면의원의궤적(inductive loop) 으로나타내고이를등가모델(equivalent circuit)로피팅또는시각적으로읽어화학확산계수및 반응속도론적정보를얻었다. PCI 평탄구간에서 Mg 대비 MgH상이증가함에따라화학확산저항이증가하고화학확산계수가작아지는양상을파악하였고이는 shrinking-core model을따름을확인하였다. 수소압력감쇠곡선을 PnITT로피팅하여시상수와감쇠시간을구하고그로부터화학확산계수및 자기확산계수(self-diffusivity)를구하였다. 평탄구간에서수소저장량이증가할수록화학확산계수와자기확산계수가점차감소하는데이는 PnIS 분석법으로얻은결과와정성적및 정량적으로일치한다.

Abstract translation: 本发明提供了一种用于获得储氢材料的化学扩散性（D）的方法和用于定性和定量分析储氢材料的动力学信息的方法。 根据本发明，本发明提供了一种分析气体化学光度法（PnlS）和气体化学滴定技术（PnlTT）的储氢材料的化学扩散性和动力学信息的分析方法， ， 分别。

公开(公告)号：KR1020130053583A

公开(公告)日：2013-05-24

申请号：KR1020110118877

申请日：2011-11-15

Applicant: 전남대학교산학협력단

Inventor： 김재국 ,  임진섭 ,  김지현 ,  문지예 ,  강성원

IPC: H01M4/505 ,  H01M4/1391 ,  H01M10/052 ,  C01G45/02

CPC classification number: Y02E60/122 ,  Y02T10/7011 ,  C01G45/12 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525

Abstract: PURPOSE: A manufacturing method of a lithium manganese oxide electrode material is provided to manufacture a crystalline lithium manganese oxide electrode material using an amorphous lithium manganese oxide as a starting material. CONSTITUTION: A manufacturing method of a lithium manganese oxide electrode material comprises a step of obtaining a uniform mixture by mixing amorphous lithium manganese oxide; and a step of heat-treating the mixture under oxygen or air atmosphere. The molar ratio of lithium and manganese is 6:5-10:5, in the mixture. The mixing step comprises a dry ball-milling the amorphous lithium manganese oxide and lithium. The heat-treating step is conducted in a vacuum furnace at 400-900 deg. C for 8-20 hours.

Abstract translation: 目的：提供一种锂锰氧化物电极材料的制造方法，以制造使用无定形锰酸锂作为原料的结晶锂锰氧化物电极材料。 构成：锂锰氧化物电极材料的制造方法包括通过混合无定形锰酸锂获得均匀混合物的步骤; 以及在氧气或空气气氛下对混合物进行热处理的步骤。 在混合物中锂和锰的摩尔比为6：5-10：5。 混合步骤包括无定形的锂锰氧化物和锂的干球磨。 热处理步骤在400-900度的真空炉中进行。 C 8-20小时。

公开(公告)号：KR1020120043981A

公开(公告)日：2012-05-07

申请号：KR1020100105307

申请日：2010-10-27

Applicant: 주식회사 엘지화학 ,  전남대학교산학협력단

Inventor： 오송택 ,  정근창 ,  김재국 ,  임진섭 ,  우철홍 ,  김지현 ,  유인선 ,  최철훈

IPC: C01G45/00 ,  H01M4/485 ,  H01M10/0525

CPC classification number: Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  C01G45/1221 ,  C01P2006/40 ,  H01M4/505 ,  H01M10/052

Abstract: PURPOSE: A manufacturing method of lithium-manganese oxide of excessive lithium and a secondary battery using thereof are provided to enhancing charge and discharge characters even in volume, variety, and velocity. CONSTITUTION: A manufacturing method of lithium-manganese oxide of excessive lithium is represented by chemical formula 1. The manufacturing method of lithium-manganese oxide of excessive lithium comprises the next steps: processing a reaction of lithium complex with lithium manganese based oxide which is represented by chemical formula 2 in reducing condition in order to synthesize lithium manganese based oxide; and synthesizing lithium manganese based oxide. The chemical formula 1 is same as follow: Li1+xMyMn2-yO4-zQz. The chemical formula 2 is same as follow: Li1+xMyMn2-x-yO4-zQ'z.

Abstract translation: 目的：提供过量锂的锂锰氧化物及其二次电池的制造方法，以便即使体积，种类和速度也能增强充放电特性。 构成：过量锂的锂锰氧化物的制造方法由化学式1表示。过量锂的锂锰氧化物的制造方法包括以下步骤：处理锂络合物与代表的锂锰氧化物的反应 通过化学式2在还原条件下合成锂锰氧化物; 并合成锂锰氧化物。 化学式1如下：Li1 + xMyMn2-yO4-zQz。 化学式2如下：Li1 + xMyMn2-x-yO4-zQ'z。

公开(公告)号：KR100891561B1

公开(公告)日：2009-04-06

申请号：KR1020080056480

申请日：2008-06-16

Applicant: 전남대학교산학협력단

Inventor： 송선주 ,  김재국 ,  이종숙 ,  문종하

IPC: G01N27/407 ,  G01N27/12 ,  G01N27/26

Abstract: A gas sensor for partial pressure measurement of hydrogen and oxygen and a manufacturing method thereof are provided to measure the oxygen or hydrogen concentration in the environment unable to be exposed to atmosphere, and to simplify the manufacturing process. A gas sensor(100) for partial pressure measurement of hydrogen and oxygen comprises a solid electrolyte(110) including a closed internal space(130) which stores the air used as the reference electrode, a first electrode(120a) formed on one side of the solid electrolyte exterior, a second electrode(120b) formed in one side of the internal space of the solid electrolyte, and a lead wire(140) which is connected to the first electrode and the second electrode and exposed out of the solid electrolyte.

Abstract translation: 提供用于氢和氧的分压测量的气体传感器及其制造方法，以测量环境中不能暴露于大气中的氧气或氢气浓度，并简化制造过程。 用于氢和氧的分压测量的气体传感器（100）包括固体电解质（110），其包括存储用作参考电极的空气的封闭内部空间（130），形成在第一电极 固体电解质外部，形成在固体电解质的内部空间的一侧的第二电极（120b）和与第一电极和第二电极连接并露出固体电解质的引线（140）。

公开(公告)号：KR101860404B1

公开(公告)日：2018-07-05

申请号：KR1020160141986

申请日：2016-10-28

Applicant: 전남대학교산학협력단

Inventor： 김재국 ,  송진주 ,  박소현 ,  김성진 ,  조정근 ,  김석훈

IPC: C01B25/45 ,  C01B25/08 ,  H01M4/58 ,  H01M10/054

Abstract: 본발명은급속충방전이가능한나트륨바나듐인산염계전극활물질의제조방법및 그방법으로제조된이차전지용나트륨바나듐인산염계전극활물질에관한것으로, 보다구체적으로는나트륨이온전지의전극활물질이갖는단점을극복하기위해나트륨전극소재와인화니켈과의복합체를구성함으로써급속충방전이가능한나트륨바나듐인산염계전극활물질의제조방법에관한것이다. 본발명의제조방법에의하면나트륨바나듐인산염계전극소재와전기전도도가우수한인화니켈과의복합체를구성함으로써급속충방전이가능한나트륨바나듐인산염계전극활물질을제조할수 있다. 또한, 본발명에의해제조된나트륨바나듐인산염계전극활물질은고출력특성을발현하는나트륨이차전지에적용할수 있는효과가있다.