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公开(公告)号：KR1020040096063A
公开(公告)日：2004-11-16
申请号：KR1020030028867
申请日：2003-05-07
Applicant: 한국전자통신연구원
IPC: H01M4/58
CPC classification number: H01M4/505 , C01G45/1228 , C01G51/50 , C01P2002/72 , C01P2004/03 , C01P2006/40 , H01M4/525
Abstract: PURPOSE: A method for preparing lithium-cobalt-manganese based oxides for a lithium secondary battery is provided to improve the structure stability and electrochemical properties including discharge capacity of the resulted oxides through a simplified and economic process using a combustion process. CONSTITUTION: The method for preparing lithium-cobalt-manganese based oxides comprises: preparing an aqueous solution of salts of lithium, cobalt and manganese (10); heating the aqueous solution to form a gel (20); combusting the gel to form powdered oxides (30); treating the powdered oxides with heat to form a powder of Li£CoxLi(1/3-X/3)Mn(2/3-2x/3)|O2, wherein 0.05
Abstract translation: 目的：提供一种用于制备锂二次电池的锂钴锰氧化物的方法，以通过使用燃烧过程的简化和经济的方法改善所得氧化物的结构稳定性和电化学性能。 构成：制备锂钴锰氧化物的方法包括：制备锂，钴和锰的盐水溶液（10）; 加热水溶液以形成凝胶（20）; 燃烧凝胶以形成粉末状氧化物（30）; 用热处理粉状氧化物以形成具有层状结构的Li£CoxLi（1/3-X / 3）Mn（2 / 3-2x / 3）| O2的粉末，其中0.05
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公开(公告)号：KR1020040092189A
公开(公告)日：2004-11-03
申请号：KR1020030026420
申请日：2003-04-25
Applicant: 한국전자통신연구원
IPC: H01M10/05
CPC classification number: H01M10/0565 , H01M10/052 , H01M2300/0082 , H01M2300/0094
Abstract: PURPOSE: Provided is a composite polymer electrolyte for lithium secondary battery which has significantly improved ionic conductivity, thin thickness and reinforced mechanical property. CONSTITUTION: The composite polymer electrolyte(10) for a lithium secondary battery is manufactured by the method comprising the steps of: preparing a first polymer matrix(12) comprised of a first porous polymer having a first pore size; obtaining a solution of a single-ion conductor, mineral and second porous polymer having a second pore size lower than the first pore size in a cosolvent; coating the solution on the first polymer matrix to form a second polymer matrix(14); and impregnating an electrolytic solution(16) into the first polymer matrix(12) and the second polymer matrix(14).
Abstract translation: 目的：提供一种锂二次电池的复合聚合物电解质，其具有显着改善的离子导电性，薄的厚度和增强的机械性能。 构成：通过包括以下步骤的方法制造用于锂二次电池的复合聚合物电解质（10）：制备由具有第一孔径的第一多孔聚合物构成的第一聚合物基体（12） 在助溶剂中获得具有低于第一孔径的第二孔径的单离子导体，矿物和第二多孔聚合物的溶液; 将溶液涂覆在第一聚合物基质上以形成第二聚合物基质（14）; 并将电解液（16）浸渍到第一聚合物基质（12）和第二聚合物基质（14）中。
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公开(公告)号：KR100450752B1
公开(公告)日：2004-10-01
申请号：KR1020020027060
申请日：2002-05-16
Applicant: 한국전자통신연구원
IPC: H01M10/05
CPC classification number: H01M10/0565 , H01M10/052 , H01M2300/0091
Abstract: 아크릴로니트릴계 고분자와 양이온성 고분자가 혼합된 고분자 브렌드를 이용한 비수계 이차전지용 고분자 전해질 및 그 제조 방법에 관하여 개시한다. 본 발명에 따른 고분자 전해질의 제조 방법에서는 아크릴로니트릴 반복 단위를 포함하는 고분자 및 양이온성 고분자를 브렌딩하여 고분자 브렌드를 준비한다. 상기 고분자 브렌드 및 무기물을 공용매에 용해시켜 고분자 브렌드 용액을 제조한다. 상전환법에 의해 상기 고분자 브렌드 용액으로부터 다공성 고분자 필름을 형성한다. 상기 다공성 고분자 필름을 리튬염이 용해된 전해액에 함침시킨다.
Abstract translation: 目的：提供一种基于阳离子聚合物共混物的聚合物电解质及其制备方法，以提高用于非水二次电池的聚合物电解质的离子电导率和阳离子产率特性。 构成：该方法包括以下步骤：（10）将含有丙烯腈重复单元的聚合物和阳离子聚合物共混以制备聚合物共混物; （20）将聚合物共混物和无机材料溶解在共溶剂中以制备聚合物共混物溶液; （30）通过相变方法由聚合物共混物溶液形成多孔聚合物膜; 和（40）将多孔聚合物膜浸泡在溶解锂盐的电解质溶液中。 优选无机材料选自二氧化硅，滑石，氧化铝，γ-Al 2 O 3，TiO 2，沸石及其混合物; 并且助溶剂选自二甲基甲醛，二甲基亚砜，N-甲基吡咯烷酮及其混合物。
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公开(公告)号：KR1020040032421A
公开(公告)日：2004-04-17
申请号：KR1020020061547
申请日：2002-10-09
Applicant: 한국전자통신연구원
IPC: H01M4/62
CPC classification number: H01M4/0404 , H01M4/131 , H01M4/136 , H01M4/1391 , H01M4/1397 , H01M4/485 , H01M4/5825 , H01M4/622 , H01M4/624 , H01M10/052
Abstract: PURPOSE: Provided is an environmental-friendly method for making a cathode plate for a lithium secondary battery, which uses an aqueous H2O2-containing solution that is not harmful to human bodies to form high-viscosity slurry suitable for coating on a cathode collector. CONSTITUTION: The method for making a cathode plate comprises: a step(1) for dissolving vanadium pentoxide into an aqueous H2O2-containing solution; a step(3,4) for adding a conductive agent to form a gel; a step(5) for removing moisture from the gel; and a step(6) for coating the gel onto a cathode collector and then drying. Particularly, the aqueous solution comprises 5 to 20 wt% of H2O2. The conductive agent may be added together with a binder, and the conductive agent is preferably super-p and the binder is preferably carboxymethyl cellulose.
Abstract translation: 目的：提供一种用于制造锂二次电池阴极板的环保方法，其使用对人体无害的含H 2 O 2水溶液形成适于涂覆在阴极集电体上的高粘度浆料。 构成：制造阴极板的方法包括：将五氧化二钒溶解在含水H 2 O 2溶液中的步骤（1） 用于添加导电剂以形成凝胶的步骤（3,4）; 用于从凝胶中除去水分的步骤（5）; 以及用于将凝胶涂布到阴极集电体上然后干燥的步骤（6）。 特别地，水溶液含有5〜20重量％的H 2 O 2。 导电剂可以与粘合剂一起加入，导电剂优选为超级p，粘合剂优选为羧甲基纤维素。
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Patent Agency Ranking
公开(公告)号：KR1020030043403A
公开(公告)日：2003-06-02
申请号：KR1020010074563
申请日：2001-11-28
Applicant: 한국전자통신연구원
IPC: C01G31/02
CPC classification number: Y02P20/544
Abstract: PURPOSE: Provided is a synthetic method of amorphous vanadium oxide(V2O5) used as an active material of lithium secondary battery by reacting NH4VO3 (precursor) solution with acids. Accordingly, the resultant vanadium oxide has electrochemical stability and excellent cathode characteristics. CONSTITUTION: The amorphous vanadium oxide is synthesized by the following steps of: dissolving 0.05-0.5M of NH4VO3 precursor into water at 50-200deg.C for an aqueous NH4VO3 solution; adding an acid having 5-70% of purity, selected from HNO3, HCl, H2SO4, H3PO4, etc. to the NH4VO3 solution until pH of the NH4VO3 solution arrives at pH0-4; doping the acidified NH4VO3 solution with metal(Ag or Cu) powder to be vanadium oxide doped with 0.01-0.5M of metal; precipitating amorphous vanadium oxide and filtering; and optionally adding water and stirring to get vanadium oxide gel with large surge surface area and large quantities of pores; drying at 80-120deg.C in an oven, or by using solvent exchange or supercritical fluid.
Abstract translation: 目的：提供通过使NH4VO3（前体）溶液与酸反应而用作锂二次电池的活性物质的无定形氧化钒（V2O5）的合成方法。 因此，所得钒氧化物具有电化学稳定性和优异的阴极特性。 构成：通过以下步骤合成无定形氧化钒：将0.05-0.5M的NH4VO3前体溶解在水中，在50-200℃下用于NH 4 VO 3溶液; 向NH4VO3溶液中加入选自HNO 3，HCl，H 2 SO 4，H 3 PO 4等纯度为5-70％的酸，直到NH4VO3溶液的pH达到pH4-4; 用金属（Ag或Cu）粉末掺杂酸化的NH4VO3溶液为掺杂有0.01-0.5M金属的氧化钒; 沉淀无定形氧化钒和过滤; 并加入水和搅拌，得到氧化钒凝胶，表面积大，孔数大; 在烘箱中干燥80-120℃，或使用溶剂交换或超临界流体。
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公开(公告)号：KR1020030032538A
公开(公告)日：2003-04-26
申请号：KR1020010064358
申请日：2001-10-18
Applicant: 한국전자통신연구원
IPC: H01L31/04 , H01L31/0224
CPC classification number: Y02E10/542
Abstract: PURPOSE: A dye-sensitized solar cells including titanium silicalite-2 is provided to improve photo conversion efficiency by stabilizing a photocurrent characteristic while increasing photocurrent without reducing a photovoltage. CONSTITUTION: A semiconductor electrode(10) includes a mixture layer(14) of a transition metal oxide and titanium silicalite-2. An electrolyte solution(30) is interposed between the semiconductor electrode and an electrode(20) confronting the semiconductor electrode. The semiconductor electrode is composed of a conductive transparent substrate and the mixture layer coated on the transparent substrate. The semiconductor electrode further includes a dye molecule layer chemically absorbed to the transition metal oxide.
Abstract translation: 目的：提供包括钛硅沸石-2的染料敏化太阳能电池，以通过稳定光电流特性同时增加光电流而不降低光电压来提高光转换效率。 构成：半导体电极（10）包括过渡金属氧化物和钛硅沸石-2的混合层（14）。 在半导体电极和面对半导体电极的电极（20）之间插入电解质溶液（30）。 半导体电极由导电透明基板和涂覆在透明基板上的混合层构成。 半导体电极还包括化学吸收到过渡金属氧化物的染料分子层。
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公开(公告)号：KR1020030014988A
公开(公告)日：2003-02-20
申请号：KR1020010049024
申请日：2001-08-14
Applicant: 한국전자통신연구원
IPC: H01M12/08
CPC classification number: H01G9/016 , H01G9/02 , H01G9/038 , H01G9/155 , H01G11/06 , H01G11/50 , H01M4/381 , H01M4/602 , H01M10/4264 , H01M14/00 , H01M16/00 , H01M2300/0025 , Y02E60/13
Abstract: PURPOSE: Provided is a 3-electrode type hybrid power element having a lithium secondary battery and a supercapacitor in one cell, which has excellent performance than general lithium secondary batteries and is economical and practical and can be used for mobile communication. CONSTITUTION: The hybrid power element has the 3-electrode form by connecting a cathode(B) of the lithium secondary battery and one electrode(B) of the supercapacitor, as a common electrode, to a cathode and connecting a lithium metal anode(A) of the lithium secondary battery and the other electrode(C) of the supercapacitor to an anode. And the hybrid power element is produced by a process comprising the steps of: preparing a conductive polymer electrode(B) used as the common electrode by coating an electrode active material on both sides of a charge assembly and preparing a conductive polymer electrode(C) used as the electrode of the supercapacitor by coating an electrode active material on one side of a charge assembly; laminating the lithium metal electrode(A), a separator, the conductive polymer electrode(B), a separator, and the conductive polymer electrode(C); adding an electrolyte to the resultant; packing by using a material capable of vacuum heat packing.
Abstract translation: 目的：提供一种在一个电池中具有锂二次电池和超级电容器的3电极型混合动力元件，其具有比一般锂二次电池优异的性能，并且经济实用并且可用于移动通信。 构成：混合动力元件具有通过将锂二次电池的阴极（B）和作为公共电极的超级电容器的一个电极（B）连接到阴极并连接锂金属阳极（A ）和超级电容器的另一个电极（C）连接到阳极。 混合动力元件是通过以下工序来制造的，该方法包括以下步骤：制备用作公共电极的导电聚合物电极（B），通过在电荷组件的两侧涂覆电极活性材料并制备导电聚合物电极（C） 通过在电荷组件的一侧上涂覆电极活性材料而用作超级电容器的电极; 层叠锂金属电极（A），隔膜，导电性聚合物电极（B），隔膜和导电性聚合物电极（C）; 向所得物中加入电解质; 通过使用能够进行真空热包装的材料进行包装。
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公开(公告)号：KR100371137B1
公开(公告)日：2003-02-07
申请号：KR1019990058382
申请日：1999-12-16
Applicant: 한국전자통신연구원
IPC: C08J5/18
CPC classification number: H01B1/128 , C08J5/18 , C08J2300/12
Abstract: A method of manufacturing a conducting polymer film including dissolving a lithium salt in an organic solvent; after the lithium salt is completely dissolved in the organic solvent, dissolving a conducting polymer in the organic solvent by adding the conducting polymer little by little in many separate doses into the organic solvent until obtaining a deep blue colored solution; and leaving the deep blue colored solution as it stands over seven days and coating it on a flat surface; and evaporating the solvent from the coated solution. It is possible to work the conducting polymer film in a very thin membrane and to control the thickness as required, since the polymer film can be formed directly from a solution. Furthermore, it is also possible to control the conductivity of the polymer film by varying the type of salts as used and the concentration thereof, and thus its applicability is very diverse as the purpose of using them, for example in electronic/electric components.
Abstract translation: 一种制造导电聚合物膜的方法，包括将锂盐溶解在有机溶剂中; 在锂盐完全溶解在有机溶剂中后，通过将导电聚合物以许多不同的剂量一点一点地加入有机溶剂中，将导电聚合物溶解在有机溶剂中，直到获得深蓝色溶液; 并在七天内留下深蓝色的溶液并将其涂覆在平坦的表面上; 并从涂布的溶液中蒸发溶剂。 因为聚合物膜可以直接由溶液形成，所以可以将导电聚合物膜加工成非常薄的膜并根据需要控制厚度。 此外，还可以通过改变所使用的盐的类型及其浓度来控制聚合物膜的导电率，因此其应用性因使用它们的目的而非常多样化，例如在电子/电气部件中。
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公开(公告)号：KR1020020088245A
公开(公告)日：2002-11-27
申请号：KR1020010027458
申请日：2001-05-19
Applicant: 한국전자통신연구원
IPC: C01G31/02
CPC classification number: H01M10/052 , H01M4/136
Abstract: PURPOSE: A preparation method of VOPO4.2H2O used as a cathode material for lithium secondary batteries by ultrasonication is provided, which offers much shortened reaction time and fined particles compared with conventional method. CONSTITUTION: The preparation method of VOPO4.2H2O comprises the steps of: mixing V2O5, H3PO4 and H2O in a molar ratio of 1 : 40-50 : 500-610; ultrasonicating the mixture in a strength of 70-100W/cm¬2 for 10-15min; washing and decompression filtering; drying at room temperature. The resultant VOPO4.2H2O has 1-3micrometer size, 3.6V voltage and 135mAh/g discharge capacity. Also, the composition for a cathode material for lithium secondary batteries is prepared by mixing VOPO4.2H2O, acetylene black and polyethylene tetrachloride in a weight ratio of 60-80 : 15-25 : 5-15.
Abstract translation: 目的：提供一种通过超声波处理用作锂二次电池阴极材料的VOPO4.2H2O的制备方法，与常规方法相比，反应时间和微细颗粒缩短。 构成：VOPO4.2H2O的制备方法包括以1:40-50：500-610的摩尔比混合V2O5，H3PO4和H2O的步骤; 将混合物以70-100W / cm 2的强度超声10-15分钟; 洗涤和减压过滤; 在室温下干燥。 所得的VOPO4.2H2O具有1-3微米尺寸，3.6V电压和135mAh / g放电容量。 而且，用于锂二次电池用阴极材料的组合物是通过混合VOPO4.2H2O，乙炔黑和聚四氯乙烯，其重量比为60-80:15-25:5-15。
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