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11.发明授权금속산화물 전극활물질의 재활용 방법, 이에 따라 제조된 리튬 이차전지용 금속산화물 전극활물질, 리튬 이차전지용 전극 및 리튬 이차전지 有权金属氧化物的电极活性物质的回收方法，锂二次电池用金属氧化物的电极活性物质，锂二次电池用电极以及锂二次电池的制造方法
公开(公告)号：KR101349900B1
公开(公告)日：2014-01-14
申请号：KR1020120062185
申请日：2012-06-11
Applicant: 한국과학기술연구원
CPC classification number: Y02W30/84
Abstract: 본 발명은 리튬 이차전지 금속산화물 전극활물질의 재활용 방법에 관한 것이다. 본 발명은 리튬 이차전지의 제조 공정 중 발생하는 금속산화물 전극활물질을 함유하는 전극 스크랩을 마련하는 제1 단계; 상기 전극 스크랩을 공기 분위기 또는 공기 및 질소 혼합 가스 분위기에서 열처리하여 상기 전극 스크랩 내에 존재하는 결착재를 탄화시키는 제2 단계; 및 상기 전극 스크랩으로부터 금속산화물 전극활물질을 회수하는 제3 단계;를 포함하는 것을 특징으로 한다. 본 발명에 의하면 간단한 물리적인 열처리 및 분리 방법에 의해 환경오염을 최소화하고, 단순한 공정과 저렴한 비용으로 전극 및 전지 제조 공정 중 발생하는 전극 스크랩 혹은 전지 내에 포함되어 있는 금속산화물 전극활물질을 재활용할 수 있다.
Abstract translation: 本发明涉及锂二次电池用金属氧化物的电极活性物质的回收方法。 该方法包括：制备在制造锂二次电池的过程中产生的包含金属氧化物的电极活性材料的电极废料的第一步骤; 通过在包含空气或空气和氮气的混合气体的气氛中对电极废料进行热处理来碳化存在于电极废料中的粘合剂的第二步骤; 以及从电极废料中回收金属氧化物的电极活性物质的第三工序。 根据本发明，用户可以通过使用简单的物理热处理和分离方法来最小化环境污染，并且可以回收在电极废料中包含的金属氧化物的电极活性材料或在制造电极的过程中产生的电池， 一个电池通过简单的过程成本低廉。 （S1）制备包含金属氧化物的电极活性物质的电极废料;（S2）热处理（300-700℃空气气氛或空气和氮气混合气体气氛）;（S3）回收金属的电极活性物质 氧化物（研磨，筛分）;（S4）锂二次电池用电极
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公开(公告)号：KR1020130109806A
公开(公告)日：2013-10-08
申请号：KR1020120031849
申请日：2012-03-28
Applicant: 한국과학기술연구원
CPC classification number: Y02P10/212 , C25C1/12 , C22B15/0084 , C23C18/1617 , Y02P10/234 , Y02P10/238
Abstract: PURPOSE: A method for recovering high-purity copper from electroless plating waste fluid is provided to recover and recycle the copper of valuable metal, and to remove copper from the solution including copper. CONSTITUTION: A method for recovering copper comprises the following steps: mixing the solution before treatment including copper with sulfuric acid and producing the treatment solution including thiosulfate compound and recovering metal copper from the treatment solution by using the electrolysis. A method for recovering copper further includes the step of concentrating solution before the step of producing the treatment solution. In the step of concentrating solution, the solution before treatment is produced by concentrating the solution including copper by the evaporative concentration method.
Abstract translation: 目的：提供一种从化学镀废液中回收高纯度铜的方法，以回收和再循环有价金属的铜，并从包括铜在内的溶液中除去铜。 构成：回收铜的方法包括以下步骤：将处理前的溶液（包括铜与硫酸）混合，并通过使用电解产生包括硫代硫酸盐化合物的处理溶液和从处理溶液中回收金属铜。 回收铜的方法还包括在制备处理溶液的步骤之前浓缩溶液的步骤。 在浓缩溶液的步骤中，通过蒸发浓缩法浓缩包括铜的溶液来生产处理前的溶液。
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13.发明授权재활용을 통한 리튬 이차전지용 리튬인산철 양극활물질의 제조 방법, 이에 따라 제조된 리튬 이차전지용 리튬인산철 양극활물질, 리튬인산철 양극 및 리튬 이차전지 有权锂离子二次电池LIFEPO4阴极电解材料的制备方法，锂离子二次电池的LIFEPO4阴极电解材料，LIFEPO4阴极和锂二次电池制造的锂离子电池材料的制造方法
公开(公告)号：KR101294335B1
公开(公告)日：2013-08-16
申请号：KR1020120056134
申请日：2012-05-25
Applicant: 한국과학기술연구원
IPC: H01M4/1397 , H01M4/58 , C01B25/45 , H01M10/052
CPC classification number: C01B25/375 , C01B25/45 , H01M4/0471 , H01M4/1397 , H01M4/5825 , H01M4/625 , Y02E60/122
Abstract: PURPOSE: A manufacturing method of a LiFePO4 positive electrode active material is provided to reduce costs and to prevent air pollution by using a positive active material that a positive electrode scrap is recycled or retreated. CONSTITUTION: A manufacturing method of a LiFePO4 positive electrode active material comprises a step of heat-treating LiFePO4 positive active material-containing positive electrode scraps (S1); a step of collecting LiFePO4 positive active material by separating a current collector from the positive electrode scraps (S2); a step of heat-treating the LiFePO4 positive active material (S3); a step of dissolving the LiFePO4 positive active material in an acid solution and precipitating FePO4 by injecting ammonia water into the solution (S4); a step of obtaining FePO4 solid contents by filtering the solution (S5); a step of obtaining crystalline FePO4 or Fe2P2O7 by heat-treating the FePO4; and a step of mixing a lithium compound and a carbon source into the FePO4 or Fe2P2O7, and heat-treating the mixture to manufacture the LiFePO4 positive active material (S7). [Reference numerals] (AA) LiFePO4 positive active material; (S1) Heat-treat LiFePO4 positive electrode scraps; (S2) Separate a current collector; (S3) Heat-treat LiFePO4 positive active material in the air; (S4) Dissolve in an acid solution and inject ammonia water into the solution -> Precipitate FePO4; (S5) Filter the precipitate; (S6) Heat-treat FePO4 precipitate in the air or hydrogen -> crystallize into FePO4 or Fe2P2O7; (S7) Mix and heat-treat a lithium compound to satisfy Li:Fe=1:1
Abstract translation: 目的：提供LiFePO 4正极活性物质的制造方法，通过使用正极废料再循环或回收的正极活性物质来降低成本并防止空气污染。 构成：LiFePO 4正极活性物质的制造方法包括对含有LiFePO 4的含正极活性物质的正极废料（S1）进行热处理的工序。 通过从正极废料（S2）分离集电体来收集LiFePO 4正极活性物质的步骤; 热处理LiFePO 4正极活性物质（S3）的工序; 将LiFePO 4正极活性物质溶解在酸溶液中并通过向溶液中注入氨水而沉淀FePO 4的步骤（S4）; 通过过滤溶液获得FePO4固含量的步骤（S5）; 通过热处理FePO 4获得结晶FePO 4或Fe 2 P 2 O 7的步骤; 以及将锂化合物和碳源混合到FePO 4或Fe 2 P 2 O 7中的步骤，并对该混合物进行热处理以制造LiFePO 4正极活性物质（S7）。 （AA）LiFePO 4正极活性物质; （S1）热处理LiFePO4正极废料; （S2）分离集电器; （S3）空气中热处理LiFePO4正极活性物质; （S4）溶解在酸性溶液中，将氨水注入溶液中 - >沉淀FePO4; （S5）过滤沉淀物; （S6）在空气中或氢气中热处理FePO4沉淀物>结晶成FePO4或Fe2P2O7; （S7）混合并热处理锂化合物以满足Li：Fe = 1：1
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公开(公告)号：KR1020130057807A
公开(公告)日：2013-06-03
申请号：KR1020110123739
申请日：2011-11-24
Applicant: 한국과학기술연구원
IPC: H01M10/0525 , H01M4/587 , H01M4/38 , C01B33/02
CPC classification number: H01M4/386 , B82Y30/00 , H01M4/04 , H01M4/0428 , H01M4/049 , H01M4/134 , H01M4/1395 , H01M4/405 , H01M4/583
Abstract: PURPOSE: An asymmetric hybrid lithium secondary battery is provided to obtain a high capacity and a high voltage by including a porous silicon electrode with excellent cycle performance. CONSTITUTION: An asymmetric hybrid lithium secondary battery comprises a positive electrode which is activated carbon and a negative electrode which is silicon to be alloyed with lithium. The silicon is phosphorous silicon with a columnar structure. The length of the columnar structure is 50-100 nm and the height thereof is 500-5,000 nm. The phosphorous silicon is doped by using an electron cyclotron resonance method and a chemical vapor deposition method. The amount of the phosphorous silicon is 0.1-10wt% based on the total silicon electrode.
Abstract translation: 目的：提供非对称混合锂二次电池，通过包括具有优异循环性能的多孔硅电极来获得高容量和高电压。 构成：不对称混合锂二次电池包括作为活性碳的正极和与锂合金化的硅的负极。 硅是具有柱状结构的磷硅。 柱状结构的长度为50-100nm，其高度为500-5,000nm。 通过使用电子回旋共振法和化学气相沉积法掺杂磷硅。 基于硅电极，磷硅的量为0.1-10重量％。
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公开(公告)号：KR1020130042387A
公开(公告)日：2013-04-26
申请号：KR1020110106655
申请日：2011-10-18
Applicant: 한국과학기술연구원
CPC classification number: Y02P10/212 , C22B7/00 , C22B23/00
Abstract: PURPOSE: A nickel recovery method from waste fluid contains nickel is provided to apply to high concentration wastewater and to utilize a condensed solvent generated during a recovery process for washing. CONSTITUTION: A nickel recovery method from waste fluid contains nickel comprises the following steps: forming a complex compound by mixing wastewater contains nickel ions with ligand; separating a precipitate by adding a precipitator to the wastewater; producing a concentrate by evaporating a solvent from the wastewater; recovering a nickel metal by electrolyzing the concentrate; and washing the recovered nickel metal.
Abstract translation: 目的：废水中的镍回收方法含镍，适用于高浓度废水，并利用在回收过程中产生的冷凝溶剂进行洗涤。 构成：含废镍的镍回收方法包括以下步骤：通过混合废水形成复合化合物，含有镍离子与配体; 通过向废水中加入除尘器来分离沉淀物; 通过从废水中蒸发溶剂产生浓缩物; 通过电解浓缩物来回收镍金属; 并洗涤回收的镍金属。
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Patent Agency Ranking
公开(公告)号：KR1020130000849A
公开(公告)日：2013-01-03
申请号：KR1020110061623
申请日：2011-06-24
Applicant: 한국과학기술연구원
IPC: H01M4/1391 , H01M4/505 , H01M4/525 , H01M10/0525
CPC classification number: C01B33/32 , H01M4/0471 , H01M4/1397 , H01M4/5825 , H01M4/625
Abstract: PURPOSE: A manufacturing method of a silicate-based electrode active material is provided to ensure the particle size and composition uniformity of a silicate electrode active material by the use of microwaves as a heating source. CONSTITUTION: A manufacturing method of an electrode active material represented by chemical formula Li2MSiO4 comprises: a step of dispersing a silicon compound into a solvent; a step of mixing lithium salt and transition metal salt into the solution, and forming a complex ion by adding a chelating agent into the mixture; and a step of gelating the mixture through a microwave treatment. In the chemical formula, M is Mn, Fe, Co, Ni, Ti, V, Cr or a mixture thereof. The molar ratio of the lithium salt and the transition metal salt is 2:1.
Abstract translation: 目的：提供一种硅酸盐基电极活性材料的制造方法，以通过使用微波作为加热源来确保硅酸盐电极活性物质的粒径和组成均匀性。 构成：由化学式Li 2 MSiO 4表示的电极活性物质的制造方法包括：将硅化合物分散到溶剂中的步骤; 将锂盐和过渡金属盐混合到溶液中的步骤，通过向混合物中加入螯合剂形成复合离子; 以及通过微波处理使混合物凝胶化的步骤。 在化学式中，M是Mn，Fe，Co，Ni，Ti，V，Cr或它们的混合物。 锂盐和过渡金属盐的摩尔比为2:1。
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公开(公告)号：KR101092866B1
公开(公告)日：2011-12-14
申请号：KR1020100042815
申请日：2010-05-07
Applicant: 한국과학기술연구원
CPC classification number: Y02C20/30
Abstract: 본 발명은 고농축함불소가스 열분해를 위한 고효율 열플라즈마 반응기에 관한 것으로서, 더욱 상세하게는 플라즈마 처리 공정중 고농축 함불소가스를 용이하게 열분해시킬 수 있도록 최적의 재질 및 설계 구조로 만들어진 고농축함불소가스 열분해를 위한 고효율 열플라즈마 반응기에 관한 것이다.
이를 위해, 본 발명은 내부반응관과 외부반응관이 서로간에 반응기체 흐름통로를 위한 일정 간격을 형성하며 중첩된 이중관 반응기; 상기 외부반응관의 외경부에 일정 간격의 폐기체 흐름통로를 형성하며 배열되는 것으로서, 반응기체 흐름통로 및 폐기체 흐름통로에 각각 반응기체 및 폐기체를 공급하기 위한 반응기체 공급구와 폐기체 공급구가 하단부에 형성된 제1외부냉각관; 상기 제1외부냉각관의 외경부에 일정 간격의 냉각수 흐름통로를 형성하며 배열되는 것으로서, 상단 및 하단부에 각각 냉각수 흐름통로와 연통되는 냉각수 공급구 및 냉각수 배출구가 형성된 제2외부냉각관; 상기 내부 및 외부반응관의 하단이 체결되는 동시에 상기 제1외부냉각관 및 제2외부냉각관의 하단에 일체로 형성된 하부플랜지와 결합되는 배출블럭; 을 포함하여 구성된 것을 특징으로 하는 고농축 함불소가스 열분해를 위한 고효율 열플라즈마 반응기를 제공한다.-
公开(公告)号：KR1020110123375A
公开(公告)日：2011-11-15
申请号：KR1020100042815
申请日：2010-05-07
Applicant: 한국과학기술연구원
CPC classification number: Y02C20/30
Abstract: PURPOSE: A high efficient thermal plasma reactor for pyrolyzing highly concentrated perfluorocompounds gas is provided to overcome safety-related problems and the capacity limit of a exhaust gas disposing device. CONSTITUTION: A high efficient thermal plasma reactor includes a dual pipe reactor(10), a first external cooling pipe(16), a second external cooling pipe(20), a plasma torch connecting plate(26), and a discharging block(30). The dual pipe reactor includes a dual pipe structure with different diameters and heights. The first external cooling pipe is arranged at the outer diameter part of an external reacting pipe(14) in the dual pipe reactor and forms a closed gas flow path(15). The second external cooling pipe is arranged on the outer diameter part of the external reacting pipe and forms a coolant flowing path(19). The plasma torch connecting plate is attached to an upper flange(22). The upper flange is integrated with the upper sides of the first external cooling pipe and the second external cooling pipe. The discharging block is combined with a lower flange(24).
Abstract translation: 目的：提供一种用于高浓度全氟化合物气体热解的高效热等离子体反应器，以克服安全问题和废气处理装置的容量限制。 构成：高效热等离子体反应器包括双管反应器（10），第一外部冷却管（16），第二外部冷却管（20），等离子体焰炬连接板（26）和排出块（30） ）。 双管反应器包括具有不同直径和高度的双管结构。 第一外部冷却管布置在双管反应器中的外部反应管（14）的外径部分处，形成封闭的气体流动通道（15）。 第二外部冷却管布置在外部反应管的外径部分上并形成冷却剂流动路径（19）。 等离子体焰炬连接板连接到上凸缘（22）。 上法兰与第一外部冷却管和第二外部冷却管的上侧一体化。 排出块与下凸缘（24）组合。
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公开(公告)号：KR101053888B1
公开(公告)日：2011-08-04
申请号：KR1020090010802
申请日：2009-02-10
Applicant: 한국과학기술연구원
IPC: C01F7/02
Abstract: 본 발명은 고순도 알루미나(Alumina, Al
2 O
3 )의 제조 방법에 관한 것이다. 구체적으로는 저순도 수산화알루미늄(Aluminum Hydroxide, Al(OH)
3 )을 구연산 수용액에 용해시킨 다음 잔류물질을 여과시키는 단계, 수산화알루미늄 용해액을 에탄올과 혼합하고 암모니아수를 첨가하여 pH를 조절하는 방법으로 구연산알루미늄을 생성시키는 단계, 생성된 구연산알루미늄을 여과하고 에탄올로 반복 세척하는 단계, 구연산알루미늄을 건조시키고 고온 소성하는 단계를 포함하여 이루어지는 고순도 알루미나(Alumina, Al
2 O
3 )의 제조 방법에 관한 것이다. 본 발명에 따르면, 환경오염 문제를 일으키지 않고 복잡한 공정을 거치지 않아도 되며, 상당히 저렴한 비용으로 순도 99.99% 이상의 고순도 알루미나를 제조할 수 있다.
수산화알루미늄, 구연산, 고순도 알루미나, 구연산알루미늄, 습식처리-
公开(公告)号：KR1020110035003A
公开(公告)日：2011-04-06
申请号：KR1020090092532
申请日：2009-09-29
Applicant: 한국과학기술연구원
Abstract: PURPOSE: A method for preparing a positive electrode active material for a lithium ion secondary battery is provided to reduce manufacturing cost using inexpensive precursors, and to ensure excellent electrical characteristic and charge and discharge capacity. CONSTITUTION: A method for preparing a positive electrode active material for a lithium ion secondary battery comprises the steps of: mixing lithium sources and metal oxides(Mn2O3, Fe2O3, Ni(OH)2 or Co3O4) to perform dry ball milling; heat-treating the obtained mixed powder to synthesize a lithium metal oxide; mixing the obtained intermediate compound with silica(SiO2) and carbon source to perform dry ball milling; and heat-treating the obtained mixed powder to prepare a positive electrode active material(Li2MSiO4/C) in which carbon is coated.
Abstract translation: 目的：提供一种制备用于锂离子二次电池的正极活性物质的方法，以便使用便宜的前体降低制造成本，并且确保优异的电特性和充放电能力。 构成：锂离子二次电池用正极活性物质的制造方法，其特征在于，将锂源和金属氧化物（Mn 2 O 3，Fe 2 O 3，Ni（OH）2或Co 3 O 4）混合，进行干式球磨; 对获得的混合粉末进行热处理以合成锂金属氧化物; 将获得的中间体化合物与二氧化硅（SiO 2）和碳源混合以进行干球磨; 对得到的混合粉末进行热处理，制备涂布有碳的正极活性物质（Li 2 MSiO 4 / C）。
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