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公开(公告)号：KR1020130053584A
公开(公告)日：2013-05-24
申请号：KR1020110118888
申请日：2011-11-15
Applicant: 전남대학교산학협력단
CPC classification number: C01B32/184 , B01J6/00 , B01J19/10 , C01B32/23 , C01B2204/00
Abstract: PURPOSE: A graphene nano-sheet and a manufacturing method thereof are provided to synthesize the graphene nano-sheet only within several seconds to several minutes by using an ultra fast combustion method without an after treatment process and other addition processes. CONSTITUTION: A manufacturing method of a graphene nano-sheet comprises the following steps: a preparing step aims to prepare a reacting solution by mixing a graphite oxide, a polyol solvent, and a flammable liquid; a burning step aims to completely burn the reacting solution by lighting a fire after the reacting solution is poured and circulated on a bottom plate; and an yielding step aims to yield a residue which remains after burning completely in the bottom plate. The yielding step comprises a step of processing an obtained residue with an ultrasonic wave.
Abstract translation: 目的：提供石墨烯纳米片及其制造方法，其通过使用超快速燃烧法在几秒至数分钟内合成石墨烯纳米片，而不需要后处理工艺和其它加成方法。 构成：石墨烯纳米片的制造方法包括以下步骤：制备步骤旨在通过混合石墨氧化物，多元醇溶剂和可燃性液体来制备反应溶液; 燃烧步骤旨在通过在反应溶液倾倒并在底板上循环之后点燃火焰来完全燃烧反应溶液; 并且产生步骤旨在产生在底板中完全燃烧后残留的残余物。 屈服步骤包括用超声波处理获得的残余物的步骤。
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公开(公告)号：KR101117967B1
公开(公告)日：2012-02-16
申请号：KR1020090098810
申请日：2009-10-16
Applicant: 현대자동차주식회사 , 전남대학교산학협력단
Abstract: 본 발명은 리튬 이차전지용 음극활물질 복합체 및 이를 이용한 리튬 이차전지 제조 방법에 관한 것으로서, 더욱 상세하게는 리튬 이차전지용 음극활물질에서의 비가역 방전용량 문제를 해결할 수 있도록 한 리튬 이차전지용 음극활물질 복합체 및 이를 이용한 리튬 이차전지 제조 방법에 관한 것이다.
즉, 본 발명은 기존 비가역 방전용량이 심한 음극활물질(흑연계, 실리콘계, 합금계, 산화물계, 인산화물, 칼코젠나이드 화합물 등)과 리튬이온에 대한 이온전도성이 우수한 질화리튬(Li
3 N)에 전기전도성을 부여하기 위하여 전이금속원자(M: Co, Ni, Ti, Mn, Cr, Fe, Cu, Zn, V 등)를 첨가한 질화전이금속리튬 화합물(Li
3-x M
x N : M = Co, Ni, Ti, Mn, Cr, Fe, Cu, Zn, V)을 적절한 비율로 혼합(blending)하여, 리튬 이차전지용 음극활물질에서 발생하는 비가역 방전용량 문제점을 해결하고자 한 리튬 이차전지용 음극활물질 복합체 및 이를 이용한 리튬 이차전지 제조 방법을 제공하고자 한 것이다.
리튬, 이차전지, 음극활물질, 양극, 전해질, 질화리튬, 전이금속원자, 질화 전이금속 리튬 화합물, 인산화물-
13.发明公开폐기물 슬러지를 이용한 리튬 이차 전지용 음극 활물질과 그 제조방법 및 이를 이용한 리튬 이차 전지 有权使用废污泥的可再充电锂离子电池用阳极活性物质及其制备方法以及使用其制造的锂离子电池
公开(公告)号：KR1020110045382A
公开(公告)日：2011-05-04
申请号：KR1020090101937
申请日：2009-10-26
Applicant: 전남대학교산학협력단
Abstract: PURPOSE: A negative electrode active material for a rechargeable lithium ion battery using waste sludge is provided to ensure high discharge capacity and electrochemical stability by recycling waste sludge. CONSTITUTION: A negative electrode active material for a rechargeable lithium ion battery using waste sludge comprises the steps of: injecting a mucolytic titanium compound into contaminated water as a coagulant in contaminated water to produce an aggregate; and separating the aggregate from a supernatant; dehydrating the aggregate separating from the supernatant; and sintering the dehydrated aggregate.
Abstract translation: 目的：提供使用废污泥的可再充电锂离子电池的负极活性物质，通过回收废污泥来确保高放电容量和电化学稳定性。 构成：使用废污泥的可再充电锂离子电池的负极活性物质包括以下步骤：在污染的水中将粘性溶解钛化合物作为凝结剂注入污染的水中以产生骨料; 并将骨料与上清液分离; 使从上清液中分离出的骨料脱水; 并烧结脱水骨料。
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公开(公告)号：KR1020090019887A
公开(公告)日：2009-02-25
申请号：KR1020090008631
申请日：2009-02-03
Applicant: 전남대학교산학협력단
CPC classification number: C01G51/44 , C01P2006/40 , H01M4/505 , H01M4/525 , H01M10/052 , Y02E60/12
Abstract: A cathode material of a lithium secondary battery and a manufacturing method thereof are provided to realize high-capacity while suppressing transition to a spinel phase during several times cycle process through the partial substitution of transition metal having low valent metal in a LiM'M"O3 structure, or model metal. A method for manufacturing a cathode material of a lithium secondary battery comprises (S110) a step for obtaining a lithium precursor, M' precursor and M'' precursor by dissolving the lithium precursor, M' precursor and M'' precursor in distilled water respectively; (S120) a step for obtaining the M'M'' precursor solution by adding M'' precursor solution in M' precursor; (S130) a step for obtaining the lithium M'M'' precursor solution by adding the lithium precursor solution in the M'M'' precursor solution; (S140) a step for agitating the lithium M'M'' precursor solution; (S150) a step for obtaining parent powder by putting the agitated lithium M'M'' precursor solution in an oven, and evaporating water from the M'M'' precursor solution; (S160) a step for pulverizing the parent powder and to heating it to the first temperature in the atmosphere; (S170) a step for heating the parent powder at the second temperature higher than the first temperature and cooling it; and (S180) a step for obtaining a cathode material of a lithium secondary battery by washing the cooled parent powder with distilled water and drying the washed parent powder.
Abstract translation: 提供锂二次电池的正极材料及其制造方法，通过在LiM'M“O 3中部分取代低价金属的过渡金属，在几次循环过程中抑制向尖晶石相的转变，实现高容量 锂二次电池的正极材料的制造方法包括：（S110）通过将锂前体，M'前体和M'前体溶解来获得锂前体，M'前体和M“前体的工序， （S120）通过在M'前体中添加M前体溶液来获得M'M前体溶液的步骤（S130）获得M'M前体溶液的步骤 通过在M'M前体溶液中加入锂前体溶液;（S140）搅拌M'M前体溶液的步骤;（S150）通过将搅拌的锂M'M “前体解决方案 n，并从M'M'前体溶液蒸发水; （S160）将母体粉末粉碎并将其加热到大气中的第一温度的步骤; （S170）在高于第一温度的第二温度下加热母体粉末并冷却的步骤; 和（S180）通过用蒸馏水洗涤冷却的母体粉末并干燥洗涤的母体粉末来获得锂二次电池的阴极材料的步骤。
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15.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
Applicant: 전남대학교산학협력단
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。
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Patent Agency Ranking
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
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。
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公开(公告)号：KR101134474B1
公开(公告)日：2012-04-13
申请号：KR1020090118971
申请日：2009-12-03
Applicant: 현대자동차주식회사 , 전남대학교산학협력단
CPC classification number: C01G23/005 , C01P2002/72 , C01P2006/40
Abstract: 본 발명은 충방전이 가능한 리튬 이차전지용 고용량 음극소재 및 그 제조 방법에 관한 것으로서, 용매열 합성법을 이용하여 리튬 이차전지용 음극 활물질로 각광받고 있는 제로 스트레인 인서트 물질(zero-strain insertion material) 인 Li
4 Ti
5 O
12 전극재료를 용이하게 합성함으로써, 기존의 폴리올 또는 고상법을 이용한 합성 방법에 비하여 우수한 결정성 및 고율 특성을 발현하는 Li
4 Ti
5 O
12 나노입자를 얻을 수 있도록 한 급속 충방전이 가능한 리튬 이차전지용 고용량 음극소재 및 그 제조 방법을 제공하고자 한 것이다.
리튬 이차전지, 음극소재, 용매열 합성법, 전극재료, 충방전, 나노입자, 고율 특성-
18.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
Applicant: 현대자동차주식회사 , 전남대학교산학협력단
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。
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公开(公告)号：KR1020110041813A
公开(公告)日：2011-04-22
申请号：KR1020090098810
申请日：2009-10-16
Applicant: 현대자동차주식회사 , 전남대학교산학협력단
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。
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公开(公告)号：KR1020090019590A
公开(公告)日：2009-02-25
申请号：KR1020070084140
申请日：2007-08-21
Applicant: 전남대학교산학협력단
CPC classification number: H01M4/505 , C01G45/12 , C01P2006/40 , H01M4/131 , H01M4/485 , H01M4/525 , H01M10/0525 , Y02E60/122
Abstract: A cathode material of a lithium-ion battery and a manufacturing method thereof is provided to realize high-capacity while suppressing transition to a spinel phase by bonding oxygen through the partial substitution of transition metal having low valent metal in a LiM'M''O3 structure, or model metal. A method for manufacturing a cathode material of a lithium secondary battery comprises (S110) a step for manufacturing a lithium precursor, M' precursor and M'' precursor by dissolving the lithium precursor, M' precursor and M'' precursor in distilled water respectively; (S120) a step for manufacturing the M'M'' precursor solution by adding M'' precursor solution in M' precursor; (S130) a step for manufacturing the lithium M'M'' precursor solution by adding the lithium precursor solution in the M'M'' precursor solution; (S140) a step for agitating the lithium M'M'' precursor solution; (S150) a step for obtaining parent powder by putting the agitated lithium M'M'' precursor solution in an oven, and evaporating water from the M'M'' precursor solution; (S160) a step for pulverizing the parent powder and to heating it to the first temperature in the atmosphere; (S170) a step for heating the parent powder at the second temperature higher than the first temperature and cooling it; and (S180) a step for obtaining a cathode material of a lithium secondary battery by washing the cooled parent powder with distilled water and drying the washed parent powder.
Abstract translation: 提供锂离子电池的正极材料及其制造方法，通过在LiM'M'O3中部分取代低价金属的过渡金属，通过键合氧而抑制向尖晶石相的转变，实现高容量 结构或模型金属。 锂二次电池的正极材料的制造方法包括：（S110）分别将锂前体，M'前体和M'前体分别溶解在蒸馏水中的锂前体，M'前体和M“前体的制造工序 ; （S120）通过在M'前体中添加M前体溶液来制造M'M前体溶液的步骤; （S130）通过在M'M前体溶液中添加锂前体溶液来制造M'M前体溶液的步骤; （S140）搅拌所述锂M'M前体溶液的步骤; （S150）通过将搅拌的M'M'M前体溶液置于烘箱中并从M'M前体溶液中蒸发水来获得母体粉末的步骤; （S160）将母体粉末粉碎并将其加热到大气中的第一温度的步骤; （S170）在高于第一温度的第二温度下加热母体粉末并冷却的步骤; 和（S180）通过用蒸馏水洗涤冷却的母体粉末并干燥洗涤的母体粉末来获得锂二次电池的阴极材料的步骤。
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