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    재활용을 통한 리튬 이차전지용 리튬인산철 양극활물질의 제조 방법, 이에 따라 제조된 리튬 이차전지용 리튬인산철 양극활물질, 리튬인산철 양극 및 리튬 이차전지
    53.
    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

    Inventor： 김형선 ,  조병원 ,  이화영 ,  김수진 ,  신은정 ,  정경윤

    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

    리튬이온 이차전지용 전극 활물질 제조 방법 및 이를 이용한 리튬이온 이차전지
    54.
    发明公开
    리튬이온 이차전지용 전극 활물질 제조 방법 및 이를 이용한 리튬이온 이차전지 有权
    使用锂二次电池和锂二次电池制备阴极活性材料的方法

    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

    Inventor： 정경윤 ,  임원빈 ,  조병원 ,  장원영 ,  김형선

    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。

    리튬이온이차전지용 양극활물질의 제조방법
    55.
    发明公开
    리튬이온이차전지용 양극활물질의 제조방법 有权
    用于制备锂离子二次电池的阴极材料的方法

    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

    Inventor： 조원일 ,  정경윤 ,  조병원 ,  신호철

    IPC: H01M4/04 ,  H01M4/36 ,  H01M10/36

    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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