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公开(公告)号：KR1020130049114A
公开(公告)日：2013-05-13
申请号：KR1020110114179
申请日：2011-11-03
Applicant: 한국전기연구원
IPC: H01M4/139 , H01M4/58 , H01M4/62 , H01M10/052
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011 , H01M4/139 , H01M4/133 , H01M4/134 , H01M4/362 , H01M4/387 , H01M4/587 , H01M4/622 , H01M4/625 , H01M10/0525
Abstract: PURPOSE: A manufacturing method of a negative electrode active material is provided to improve electrochemical performance of a negative electrode by using a styrene butadiene rubber and carboxyl methyl cellulose composite binder. CONSTITUTION: A manufacturing method of a negative electrode active material comprises a step of mixing a metal salt aqueous solution and reducing agent; a step of forming a reducing agent/metal ion sol by mixing the mixture; a step of forming a reducing agent/metal ion gel by heating the sol; a step of sintering the reducing agent/metal ion composite to form Sn-Co-Fe-C composite negative electrode active material; a step of mixing an aqueous binder and conducting agent into the negative electrode active material and manufacturing a negative electrode mixture slurry; and a step of spreading the negative electrode mixture slurry on a CU foil and drying the spread material. [Reference numerals] (AA) Dissolve minimum amount in distilled water at 80°C; (BB) Sn-Co-Fe-C ion mixed solution; (CC) Citric acid(1 molar ratio); (DD) Acrylamide(1-z molar ratio); (EE) N,N'-methylene-bis-acrylamide(z molar ratio); (FF) Stir at 80°C; (GG) (Sn-Co-Fe-C) aqueous solution; (HH) Sn-Co-Fe-C CAM(1 molar ratio); (II) Dry(100°C, 12h); (JJ) Sn-Co-Fe-C composite; (KK) Thermally treat(300°C, 5h, Ar); (LL) Plasticized composite; (MM) Pulverize; (NN) Pulverized plasticized composite; (OO) Thermally treat at 550°C, 3h, Ar, 5°C/min / Pulverize and distribute; (PP) Sn-Co-Fe-C compound anodizing material
Abstract translation: 目的：提供一种负极活性物质的制造方法，其通过使用苯乙烯丁二烯橡胶和羧甲基纤维素复合粘合剂来改善负极的电化学性能。 构成：负极活性物质的制造方法包括将金属盐水溶液和还原剂混合的工序; 通过混合该混合物形成还原剂/金属离子溶胶的步骤; 通过加热溶胶形成还原剂/金属离子凝胶的步骤; 烧结还原剂/金属离子复合物以形成Sn-Co-Fe-C复合负极活性材料的步骤; 将水性粘合剂和导电剂混合到负极活性物质中并制造负极混合浆料的步骤; 以及将负极混合物浆料铺展在CU箔上并干燥铺展材料的步骤。 （标号）（AA）将最小量溶于80℃的蒸馏水中; （BB）Sn-Co-Fe-C离子混合溶液; （CC）柠檬酸（1摩尔比）; （DD）丙烯酰胺（1-z摩尔比）; （EE）N，N'-亚甲基双丙烯酰胺（z摩尔比）; （FF）在80℃下搅拌; （GG）（Sn-Co-Fe-C）水溶液; （HH）Sn-Co-Fe-C CAM（1摩尔比）; （II）干燥（100℃，12h）; （JJ）Sn-Co-Fe-C复合材料; （KK）热处理（300℃，5h，Ar）; （LL）增塑复合材料; （MM）粉碎; （NN）粉碎塑化复合材料; （OO）在550°C，3h，Ar，5°C / min热处理粉碎和分散; （PP）Sn-Co-Fe-C复合阳极氧化材料
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公开(公告)号：KR1020120079340A
公开(公告)日：2012-07-12
申请号：KR1020110000573
申请日：2011-01-04
Applicant: 한국전기연구원
IPC: H01M4/38 , B82B3/00 , H01M10/0525
CPC classification number: Y02E60/122 , Y02P70/54 , Y02T10/7011 , H01M4/38 , B82B3/00 , H01M10/0525
Abstract: PURPOSE: A manufacturing method of tin-based nanocomposite negative electrode active material is provided to have simple nanoparticle-generating process, to have low energy injection, and to easy to manufacture a large amount. CONSTITUTION: A manufacturing method of tin-based nanocomposite negative electrode active material comprises: a step of connecting tin-based wire between two electrodes in solution, and manufacturing dispersed solution through high voltage pulse discharge; a step of manufacturing composite solution by dissolving or dispersing two kinds of materials into the dispersed solution; and a step of manufacturing tin-based nanocomposite by complexation of tin-based nano particles in the composite solution, and two kinds of materials.
Abstract translation: 目的：提供一种锡基纳米复合负极活性物质的制造方法，其具有简单的纳米粒子生成工序，低能量注入，容易制造。 构成：锡基纳米复合负极活性物质的制造方法包括：在溶液中的两个电极之间连接锡基线，并通过高压脉冲放电制造分散溶液的步骤; 通过将两种材料溶解或分散在分散溶液中制造复合溶液的步骤; 以及通过复合溶液中锡基纳米颗粒的络合制造锡基纳米复合材料的步骤和两种材料。
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公开(公告)号：KR101142534B1
公开(公告)日：2012-05-07
申请号：KR1020110053319
申请日：2011-06-02
Applicant: 한국전기연구원
IPC: H01M4/38 , H01M10/052 , H01M4/1395 , B82B3/00
CPC classification number: B01J19/088 , H01M4/134 , H01M4/364 , H01M4/386 , H01M10/052 , Y02E60/122 , Y10S977/773 , Y10S977/932 , Y10S977/948
Abstract: PURPOSE: A manufacturing method of silicon-based nanocomposite negative electrode active material is provided to have very simple process for manufacturing nano particles, and to have low input energy. CONSTITUTION: A manufacturing method of silicon-based nanocomposite negative electrode active material comprises: a first step manufacturing dispersion solution in which silicon based nanoparticles are dispersed through installation of silicon based wire between two electrodes locating in methanol solvent atmosphere, and high voltage pulse discharging; a second step manufacturing silicon based nanocomposite by complicating the silicon based nanoparticles and another material. The silicon based wires forms a shape of line, rod, and ribbon by molding one selected from silicon wafer, silicon powder, silicon alloy, and a mixture of silicon and another metal powder.
Abstract translation: 目的：提供硅基纳米复合材料负极活性材料的制造方法，其制造方法非常简单，制造纳米粒子，输入能量低。 构成：硅基纳米复合负极活性物质的制造方法，包括：通过在位于甲醇溶剂气氛中的两个电极之间安装硅基线和高压脉冲放电，第一步制造分散硅基纳米粒子的分散溶液; 第二步通过使硅基纳米颗粒和另一种材料复杂化来制造硅基纳米复合材料。 硅基线通过模制从硅晶片，硅粉末，硅合金以及硅和另一种金属粉末的混合物中的一种形成线，棒和带的形状。
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公开(公告)号：KR101142533B1
公开(公告)日：2012-05-07
申请号：KR1020090135084
申请日：2009-12-31
Applicant: 한국전기연구원
IPC: H01M4/42 , H01M4/583 , H01M10/0525
Abstract: 본 발명은 리튬이차전지용 음극 활물질, 이를 음극재료로 사용하는 리튬이차전지에 관한 것으로서, 리튬이차전지의 구성 요소 중 음극 활물질에 있어서, 아연 재료를 포함하여 이루어지되, 상기 아연 재료는 탄소전구체와 혼합한 뒤 탄소전구체를 탄화시켜 아연 재료의 표면에 탄소가 도포된 것을 사용하며, 또한, 상기 아연 재료는 아연-흑연 복합물을 사용할 수도 있다. 이에 의해 음극 활물질 및 리튬이차전지의 물리적 및 전기화학적 특성이 향상되었으며, 아연계 전극재료의 채용으로 음극의 비용량을 향상할 수 있고, 고밀도 특성으로 용량밀도를 향상할 수 있어서, 고에너지의 리튬이차전지를 개발할 수 있는 이점이 있다.
리튬이차전지, 금속계 음극 활물질, 아연, 흑연, 탄소전구체-
公开(公告)号：KR1020090023263A
公开(公告)日：2009-03-04
申请号：KR1020080085005
申请日：2008-08-29
Applicant: 한국전기연구원
CPC classification number: H05B3/20 , H05B3/03 , H05B3/12 , H05B3/28 , H05B2203/017 , H05B2203/026
Abstract: A sheet type heater and a heating device including the same are provided to radiate a far infrared ray in a whole range of a heater in driving the heater by adding far infrared radiation material to the heater. A sheet type heater includes a heating electrode(3). Material of the electrode is a mixture of carbon and bonding agent, and is dispersed in slurry. The slurry is coated on insulating material(2). The heating electrode is formed on a predetermined region of a top of the insulating material. Weight of carbon included in the heating electrode is 5~40 parts by weight. The carbon includes at least one or more conductive carbon selected from group composed of natural graphite, artificial graphite, carbon black, denka black, super-P black, activated carbon, vapor growth carbon fiber, carbon fiber, graphite nano fiber, and carbon nano fiber.
Abstract translation: 提供片式加热器和包括该片式加热器的加热装置，通过向加热器添加远红外线辐射材料来驱动加热器的整个范围内的远红外线。 片状加热器包括加热电极（3）。 电极的材料是碳和粘合剂的混合物，并分散在浆料中。 浆料涂覆在绝缘材料（2）上。 加热电极形成在绝缘材料的顶部的预定区域上。 加热电极中所含的碳的重量为5〜40重量份。 碳包括选自由天然石墨，人造石墨，炭黑，黑炭黑，超P黑，活性炭，气相生长碳纤维，碳纤维，石墨纳米纤维和碳纳米管组成的组中的至少一种以上的导电性碳 纤维。
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Patent Agency Ranking
公开(公告)号：KR100836515B1
公开(公告)日：2008-06-12
申请号：KR1020070019370
申请日：2007-02-27
Applicant: 한국전기연구원
CPC classification number: H01M4/366 , H01M4/387 , H01M4/5805 , H01M4/621 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2300/0028 , Y02E60/122
Abstract: A lithium secondary battery is provided to exhibit excellent specific capacitance even if the battery is charged at voltage higher than 4.2 V, and to secure a long life without any deterioration problem even after charge and discharge cycles. A lithium secondary battery includes a negative electrode active material-containing negative electrode, a positive electrode active material-containing positive electrode, and a non-aqueous electrolyte. The positive electrode active material is a LiCoO2 active material having an active type LiCoPO4 thin film formed by coating of Co3(PO4)2. The negative electrode active material comprises Sn_aCu_b(a:b=3:8-8:3) coated with carbon. The non-aqueous electrolyte includes a lithium salt and a non-aqueous organic solvent comprising at least one selected from dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, and ethyl methyl carbonate, and at least one selected from cyclic carbonates comprising ethylene carbonate, propylene carbonate, and butylene carbonate.
Abstract translation: 即使在高于4.2V的电压下对电池进行充电，也能够提供锂二次电池，具有优异的比电容，即使在充放电循环之后也能够确保长时间的使用而不会发生劣化问题。 锂二次电池包括含负极活性物质的负极，含正极活性物质的正极和非水电解质。 正极活性物质是具有由Co 3（PO 4）2涂布而形成的活性型LiCoPO 4薄膜的LiCoO 2活性物质。 负极活性物质包含涂覆有碳的Sn_aCu_b（a：b = 3：8-8：3）。 非水电解质包括锂盐和非水有机溶剂，其包含选自碳酸二甲酯，碳酸二乙酯，碳酸二丙酯，碳酸甲丙酯，碳酸甲乙酯和碳酸甲乙酯中的至少一种，以及选自以下的至少一种： 碳酸亚乙酯，碳酸亚丙酯和碳酸亚丁酯的环状碳酸酯。
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公开(公告)号：KR100784124B1
公开(公告)日：2007-12-12
申请号：KR1020060106359
申请日：2006-10-31
Applicant: 한국전기연구원
CPC classification number: H01M4/1393 , H01M4/661 , H01M4/663 , H01M4/669 , H01M10/0525 , H01M2004/027 , Y02E60/122
Abstract: A method for preparing a thin film electrode and a lithium secondary battery containing the thin film electrode prepared by the method are provided to allow the thickness of a carbon thin film to be controlled easily and to improve specific capacity. A method for preparing a thin film electrode comprises the step of contacting the surface of a current collector with a gas mixture comprising a carbon-containing gas at a temperature of 700-1,200 deg.C to form a carbon thin film having a thickness of 0.023-1.086 micrometers on the surface of the current collector, wherein the thickness of the carbon thin film is controlled by controlling the temperature. The thickness of the carbon thin film is increased according to the increase of temperature.
Abstract translation: 提供了制备薄膜电极的方法和包含通过该方法制备的薄膜电极的锂二次电池，以便容易地控制碳薄膜的厚度并提高比容量。 制备薄膜电极的方法包括使集电体的表面与包含含碳气体的气体混合物在700-1200℃的温度下接触以形成厚度为0.023的碳薄膜的步骤 在集电体表面上为-1.086微米，其中通过控制温度来控制碳薄膜的厚度。 碳薄膜的厚度随着温度的升高而增加。
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公开(公告)号：KR100762796B1
公开(公告)日：2007-10-04
申请号：KR1020050118898
申请日：2005-12-07
Applicant: 한국전기연구원 , 에스케이머티리얼즈 주식회사
Abstract: 본 발명은 고용량 특성의 실리콘(Si) 재료와 전도성고분자, 특히 폴리아닐린(PAn)를 혼합하고 불활성 분위기하에서 탄화시키는 방법으로 실리콘에 탄소가 도포된 리튬 이차 전지 음극 활물질을 제조하는 방법을 제공한다. 또한, 상기 음극활 물질을 음극전극에 포함하여, 탄소 스폰지의 탄소망에 의하여 전자전도가 원활하고, 공극에 의하여 리튬이온의 전도가 원활할 뿐만 아니라 실리콘재료의 부피 팽창을 완충하여 전지의 성능이 향상된 리튬 이차 전지를 제공한다.
리튬 이차 전지, 음극 활물질, 실리콘, 전도성 고분자, 폴리아닐린-
公开(公告)号：KR1020070059717A
公开(公告)日：2007-06-12
申请号：KR1020050118898
申请日：2005-12-07
Applicant: 한국전기연구원 , 에스케이머티리얼즈 주식회사
CPC classification number: H01M4/364 , H01M4/0471 , H01M4/366 , H01M4/622 , H01M4/625 , H01M4/661 , H01M10/052 , H01M2004/027 , Y02E60/12
Abstract: Provided are a method for manufacturing a negative electrode active material, which produces a negative electrode active material having excellent physical and electrochemical characteristics, and a lithium secondary battery comprising the same, which has improved battery performances. The method for manufacturing a negative electrode active material for a lithium secondary battery comprises the steps of: preparing a mixture of conductive polymer and silicon; and carbonizing the mixture in a carbonization kiln to coat the silicon surface with carbon. The conductive polymer is a thermosetting polymer. The weight ratio of the conductive polymer and silicon is in the range of 20:80-70:30. The conductive polymer is polyaniline.
Abstract translation: 提供一种负极活性物质的制造方法，其制造具有优异的物理和电化学特性的负极活性物质和包含该负极活性物质的锂二次电池，其具有改进的电池性能。 锂二次电池用负极活性物质的制造方法包括以下步骤：制备导电聚合物和硅的混合物; 并将该混合物在碳化窑中碳化以用碳涂覆硅表面。 导电聚合物是热固性聚合物。 导电聚合物和硅的重量比在20:80-70:30的范围内。 导电聚合物是聚苯胺。
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公开(公告)号：KR100698372B1
公开(公告)日：2007-03-23
申请号：KR1020050091836
申请日：2005-09-30
Applicant: 한국전기연구원 , 에스케이머티리얼즈 주식회사
IPC: H01M4/36 , H01M4/587 , H01M4/38 , H01M4/62 , H01M10/056 , H01M10/052
CPC classification number: H01M4/366 , H01M4/386 , H01M4/587 , H01M4/623 , H01M4/625 , H01M10/052 , H01M10/056
Abstract: Provided are a negative electrode active material which is excellent in charge/discharge characteristics, specific capacity and charge/discharge cycle characteristics, its preparation method, and a lithium secondary battery containing the negative electrode active material. The negative electrode active material comprises Fe(1-x) Mn_x Si2, wherein 0
Abstract translation: 提供一种负极活性物质，其充电/放电特性，比容量和充放电循环特性优异，其制备方法和含有负极活性物质的锂二次电池。 负极活性物质包含Fe（1-x）Mn_xSi2，其中0 <= x <= 1。 优选地，Fe（1-x）Mn_x Si 2与石墨合金或用碳包覆。 该方法包括混合Fe，Si和Mn以制备Fe（1-x）Mn_x Si2复合材料的步骤; 将Fe（1-x）Mn_x Si2复合材料与石墨混合以制备Fe（1-x）Mn_xSi2-石墨复合材料; 并将Fe（1-x）Mn_xSi2-石墨复合物与碳前体混合并碳化碳前体，以制备涂覆有碳的Fe（1-x）Mn_xSi2-石墨复合材料。
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