공압화학 이미턴스 분광법 및 공압화학 단속적정법을 이용하여 수소저장소재의 화학확산계수 및 반응속도론적 정보를 분석하는 방법 및 분석시스템

    公开(公告)号:KR1020150116164A

    公开(公告)日:2015-10-15

    申请号:KR1020140040987

    申请日:2014-04-07

    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。

    리튬망간산화물 전극재료 제조방법, 그 방법으로 제조된 리튬망간산화물 전극재료, 및 상기 전극재료를 포함하는 2차 전지
    32.
    发明公开
    리튬망간산화물 전극재료 제조방법, 그 방법으로 제조된 리튬망간산화물 전극재료, 및 상기 전극재료를 포함하는 2차 전지 有权
    制备锰锰氧化物电极材料的方法,锰锰氧化物电极材料制备包含电极材料的可充电电池

    公开(公告)号:KR1020130053583A

    公开(公告)日:2013-05-24

    申请号:KR1020110118877

    申请日:2011-11-15

    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。

    리튬 과잉의 리튬 망간계 산화물의 제조 방법 및 이를 이용한 리튬 이차전지
    33.
    发明公开
    리튬 과잉의 리튬 망간계 산화물의 제조 방법 및 이를 이용한 리튬 이차전지 有权
    制备锂离子电池的锂锰氧化物的方法和包含其的锂二次电池

    公开(公告)号:KR1020120043981A

    公开(公告)日:2012-05-07

    申请号:KR1020100105307

    申请日:2010-10-27

    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。

    리튬 이차전지용 음극 재료의 제조 방법 및 이러한 제조 방법에 따라 제조된 리튬 이차전지용 음극 재료
    35.
    发明公开
    리튬 이차전지용 음극 재료의 제조 방법 및 이러한 제조 방법에 따라 제조된 리튬 이차전지용 음극 재료 有权
    用于锂二次电池的负极电极材料的合成方法和用于具有相同工艺的锂二次电池的负极电极材料

    公开(公告)号:KR1020110054888A

    公开(公告)日:2011-05-25

    申请号:KR1020090111690

    申请日:2009-11-18

    Abstract: PURPOSE: A process for manufacturing a negative electrode material for a lithium secondary battery is provided to manufacture various phosphate-based negative electrode materials without thermal process of high temperature and to reduce the time required for whole process. CONSTITUTION: A process for manufacturing a negative electrode material for a lithium secondary battery includes the steps of: mixing transition metal compounds dissolved in distilled water with poly acid phosphate-based compounds to prepare a mixed solution; stirring the mixed solution to prepare a precipitate by a co-precipitation method; drying the precipitate to a temperature of 50-80 °C; and heat-treating the dried material at a temperature of 300-500 °C.

    Abstract translation: 目的:提供一种锂二次电池用负极材料的制造方法,可以制造不含高温热处理的各种磷酸系负极材料,能够缩短整个工序所需的时间。 构成:用于制造锂二次电池用负极材料的方法包括以下步骤:将溶解在蒸馏水中的过渡金属化合物与聚酸式磷酸酯类化合物混合以制备混合溶液; 搅拌混合溶液,通过共沉淀法制备沉淀物; 将沉淀物干燥至50-80℃的温度; 并在300-500℃的温度下对干燥的材料进行热处理。

    리튬 이차전지용 음극활물질 복합체 및 이를 이용한 리튬 이차전지 제조 방법
    36.
    发明公开

    公开(公告)号:KR1020110041813A

    公开(公告)日:2011-04-22

    申请号:KR1020090098810

    申请日:2009-10-16

    Abstract: PURPOSE: A negative active material composite for a lithium rechargeable battery is provided to prevent the generation of severe irreversible discharge capacity in initial charge-discharging, thereby preventing the degradation of capacity and performance of the lithium rechargeable battery. CONSTITUTION: A negative active material composite for a lithium rechargeable battery is formed by mixing a nitrate transition metal lithium compound into a negative active material with severe irreversible discharge capacity in a proper ratio, wherein the nitrate transition metal lithium compound is formed by adding transition metal atom for imparting electroconductivity to lithium nitride(Li3N). The negative active material composite for a lithium rechargeable battery is configured to reduce an initial irreversible generation capacity.

    Abstract translation: 目的:提供一种用于锂可再充电电池的负极活性材料复合材料,以防止在初始充电放电中产生严重的不可逆放电容量,从而防止锂可充电电池的容量和性能的劣化。 构成:通过将硝酸盐过渡金属锂化合物以适当的比例将硝酸盐过渡金属锂化合物与具有严重不可逆放电容量的负极活性物质混合形成,其中通过添加过渡金属形成硝酸盐过渡金属锂化合物 用于赋予氮化锂(Li 3 N)导电性的原子。 用于锂可再充电电池的负极活性材料复合物被配置为降低初始不可逆发电量。

    수소 및 산소분압 측정을 위한 가스센서 및 제조방법
    37.
    发明授权
    수소 및 산소분압 측정을 위한 가스센서 및 제조방법 失效
    用于制造氢气和氧气的新型设计气体传感器的方法

    公开(公告)号:KR100891561B1

    公开(公告)日:2009-04-06

    申请号:KR1020080056480

    申请日:2008-06-16

    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)。

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