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    • 94. 发明授权
    • 다공성의 3차원 집전체를 이용한 리튬전극, 그 제조방법및 리튬전지
    • 다공성의3차원집체체를이용한리튬전극,그제조방법및리튬전지
    • KR100447792B1
    • 2004-09-08
    • KR1020027013110
    • 2001-01-31
    • 한국과학기술연구원
    • 조병원조원일김형선김운석남상철
    • H01M4/38
    • PURPOSE: A lithium electrode using a porous 3D current collector, its preparation method and a lithium battery using the electrode are provided, to improve the utilization rate, the cycle lifetime and the charge/discharge efficiency of a battery. CONSTITUTION: The lithium electrode contains a porous 3D current collector and lithium or lithium alloy, and the lithium or the lithium alloy id dispersed into the pore of the 3D current collector. Preferably the current collector is made of the material selected from the group consisting of Ni, Cu, Ti, V, Cr, Mn, Fe, Co, Zn, Mo, W, Ag, Au, Ru, Pt, Ir, Al, Sn, Bi, Si, Sb and their alloys. The lithium alloy is an alloy of the metal selected from the group consisting of Al, Sn, Bi, Si, Sb, B and their alloys, and lithium. Optionally the lithium electrode comprises further metal inside of the pore of the current collector, and preferably the metal is selected from the group consisting of Ni, Cu, Ti, V, Cr, Mn, Fe, Co, Zn, Mo, W, Ag, Au, Ru, Pt, Ir, Al, Sn, Bi, Si, Sb and their alloys.
    • 目的:提供使用多孔3D集流体的锂电极,其制备方法和使用该电极的锂电池,以提高电池的利用率,循环寿命和充电/放电效率。 构成:锂电极包含多孔3D集电器和锂或锂合金,并且锂或锂合金ID分散到3D集电器的孔中。 优选地,集电器由选自由Ni,Cu,Ti,V,Cr,Mn,Fe,Co,Zn,Mo,W,Ag,Au,Ru,Pt,Ir,Al,Sn ,Bi,Si,Sb及其合金。 锂合金是选自Al,Sn,Bi,Si,Sb,B及其合金和锂的金属的合金。 任选地,锂电极包含在集电器孔的内部的其它金属,并且优选地,金属选自由Ni,Cu,Ti,V,Cr,Mn,Fe,Co,Zn,Mo,W,Ag ,Au,Ru,Pt,Ir,Al,Sn,Bi,Si,Sb及其合金。
    • 96. 发明授权
    • 금속이 피복된 집전체, 이를 이용한 전극 및 이들 전극을포함하는 리튬전지
    • 금속이피복된된된집전체,이를이용한전극및이들전극을포함하는리튬전지
    • KR100404733B1
    • 2003-11-07
    • KR1020010032800
    • 2001-06-12
    • 한국과학기술연구원
    • 조병원조원일김형선김운석박호영
    • H01M4/64
    • PURPOSE: A current collector coated with a metal, an electrode employing the current collector and a lithium battery containing the electrode are provided to improve the conductivity and to allow the potential distribution on the surface of an electrode to be maintained uniformly, thereby enhancing the utilization rate of an electrode and the cycle characteristic and the charge/discharge characteristic of a battery. CONSTITUTION: The current collector is a foil, a punched foil, an expanded foil or a porous plate made of copper, nickel, aluminum or titanium, and whose both faces are coated with a metal with a thickness of several nm to several micrometers uniformly. Preferably the metal coating the current collector is selected from the group consisting of Ni, Cu, Ti, V, Cr, Mn, Fe, Co, Zn, Mo, W, Ag, Au, Ru, Pt, Ir, Al, Sn, Bi, Si, Sb and their alloys. The electrode comprises a lithium electrode made by coating the current collector with lithium; a carbon-coated carbon electrode; and a metal compound-coated metal compound electrode. The lithium battery comprises a cathode and an anode according to the electrode; a polypropylene or polyethylene separation membrane; and a polymer electrolyte or a solid electrolyte.
    • 目的:提供涂有金属的集电器,采用集电器的电极和包含电极的锂电池,以提高导电性并使电极表面上的电位分布保持均匀,由此提高利用率 电极的速率和循环特性以及电池的充电/放电特性。 构成:集电器是由铜,镍,铝或钛制成的箔片,冲孔箔片,膨胀箔片或多孔板,并且它们的两个表面均匀涂覆有厚度为几纳米至几微米的金属。 优选地,集电器的金属涂层选自由Ni,Cu,Ti,V,Cr,Mn,Fe,Co,Zn,Mo,W,Ag,Au,Ru,Pt,Ir,Al,Sn, Bi,Si,Sb及其合金。 该电极包括通过用锂涂覆集流体而制成的锂电极; 碳涂覆的碳电极; 和金属化合物涂覆的金属化合物电极。 根据电极,锂电池包括阴极和阳极; 聚丙烯或聚乙烯分离膜; 和聚合物电解质或固体电解质。
    • 97. 发明公开
    • 복합 전극, 이의 제조방법 및 이를 포함하는 리튬전지
    • 复合电极,其制备方法及含有电极的锂电池
    • KR1020030039551A
    • 2003-05-22
    • KR1020010070508
    • 2001-11-13
    • 한국과학기술연구원
    • 조병원조원일김형선
    • H01M4/02
    • PURPOSE: A composite electrode, its preparation method, and a lithium battery containing the electrode are provided, to improve the capacity, the cycle lifetime, the charge/discharge efficiency, the stability and the easiness in the manufacture of a lithium battery. CONSTITUTION: The composite electrode comprises a pore at the inside of the electrode comprising a carbon negative electrode and a metal oxide positive electrode; and a gel-type polymer electrolyte formed on the surface of the electrode. Preferably the polymer is at least one selected from the group consisting of a polyvinylidene fluoride-based polymer, poly(methyl methacrylate)-based polymer, a polyacrylonitrile-based polymer, a poly(vinyl chloride)-based polymer, a polyethylene oxide-based polymer and a polyethylene glycol-based polymer; and the metal oxide of the positive electrode is selected from the group consisting of LiCoO2, LiNiO2, LiNiCoO2, LiMn2O4, V2O5, V6O13, MnO2, (CF)n and SOCl2.
    • 目的:提供一种复合电极及其制备方法以及含有电极的锂电池,以提高容量,循环寿命,充放电效率,稳定性和制造锂电池的容易性。 构成:复合电极在包含碳负极和金属氧化物正电极的电极内部具有孔, 和形成在电极表面上的凝胶型聚合物电解质。 优选地,聚合物是选自聚偏二氟乙烯基聚合物,聚(甲基丙烯酸甲酯)基聚合物,聚丙烯腈基聚合物,聚(氯乙烯)基聚合物,聚环氧乙烷基聚合物 聚合物和聚乙二醇基聚合物; 正极的金属氧化物选自LiCoO 2,LiNiO 2,LiNiCoO 2,LiMn 2 O 4,V 2 O 5,V 6 O 13,MnO 2,(CF)n和SOCl 2。
    • 98. 发明公开
    • 파라-아미노페놀의 전기화학적 합성 방법
    • 氨基苯酚的电化学合成方法
    • KR1020030038112A
    • 2003-05-16
    • KR1020010069532
    • 2001-11-08
    • 한국과학기술연구원
    • 조병원조원일이승원
    • C25B3/00
    • C25B3/04C07C215/76C25B9/08
    • PURPOSE: A method for electrochemically synthesizing para-aminophenol from nitrobenzene without organic solvent or surfactant by using a single flat or arc type electrode or a plurality of flat or arc type electrodes as working electrodes and using an agitator is provided. CONSTITUTION: In electrolytically synthesizing para-aminophenol from nitrobenzene, the electrochemical synthesis method of para-aminophenol is characterized in that electrolytic synthesis of para-aminophenol is performed from a cathode compartment solution having 1.0 to 4.0 M concentration of sulfuric acid and 0.5 to 2.0 M concentration of nitrobenzene by using a single flat or arc type electrode or a plurality of flat or arc type electrodes as working electrodes and using an agitator, wherein a material of the working electrodes is graphite, lead, lead-silver alloy or copper, and the material is coated with a single metal or alloy thereof selected from the group consisting of copper, bismuth, tin, antimony, lead and zinc, and wherein the cathode compartment solution further comprises a metal compound containing a metal selected from the group consisting of copper, bismuth, tin, antimony, lead and zinc. The electrochemical synthesizing apparatus of para-aminophenol comprises anode compartment comprising counter electrodes (2), cathode compartment comprising working electrodes (3), and cation exchange membranes (4), wherein the working electrodes are consisted of a single flat or arc type electrode or a plurality of flat or arc type electrodes, and the apparatus further comprises an agitator.
    • 目的:提供通过使用单个扁平或弧形电极或多个扁平或弧形电极作为工作电极并使用搅拌器从硝基苯而不用有机溶剂或表面活性剂电化学合成对氨基苯酚的方法。 构成:在硝基苯电解合成对氨基苯酚中,对氨基苯酚的电化学合成方法的特征在于,电解合成对氨基苯酚是从1.0〜4.0M浓度的硫酸和0.5〜2.0M的阴极室溶液进行的 通过使用单个扁平或弧形电极或多个扁平或弧形电极作为工作电极并使用搅拌器,硝基苯的浓度,其中工作电极的材料是石墨,铅,铅 - 银合金或铜,并且 材料用选自铜,铋,锡,锑,铅和锌的单一金属或其合金涂覆,并且其中阴极室溶液还包含含有选自铜, 铋,锡,锑,铅和锌。 对氨基苯酚的电化学合成装置包括阳极室,包括相对电极(2),包括工作电极(3)和阳离子交换膜(4)的阴极室,其中工作电极由单个平面或弧形电极组成, 多个扁平或弧形电极,并且该装置还包括搅拌器。
    • 99. 发明授权
    • 리튬 이차 전지용 금속산화물 전극 재료 분말의 표면 개질방법, 이 방법으로 제조된 표면 개질 분말
    • 리튬이차전지용금속산화물전극재료분말의표면개질방법,이방법으로제조된표면개질분말
    • KR100374010B1
    • 2003-02-26
    • KR1020000040021
    • 2000-07-12
    • 한국과학기술연구원
    • 이중기조병원조원일우주만박달근윤경석
    • H01M4/04
    • 본 발명은, 진공오븐에서 전처리한 전극용 금속산화물 입자를 유동층 화학증착 반응기에 장입하는 단계, 비활성 가스를 상기 반응기에 공급하여 상기 입자를 유동화시키는 단계, 및 상기 입자에 유기금속전구체를 전구체 동반가스에 의해 상기 반응기내로 공급하거나 또는 유기 금속이 용해된 용액을 분사시켜, 열분해 및 화학증착반응에 의해 상기 입자위에 금속 또는 금속산화물을 1∼300 nm 두께로 코팅하는 단계를 포함하는 금속산화물 전극재료 분말의 표면 개질 방법이 제공된다. 본 발명에 의해 전극의 전도성이 향상되어 고율충방전특성, 싸이클특성 및 전극용량의 증가가 있던 것에 더하여 전극의 성형성이 우수하였으며, 전류 집전체와의 결합력이 우수하였고 또한 전극 활물질간의 결합력이 우수한, 리튬이차전지의 양극용 금속산화물을 얻을 수 있다. 또한 본 발명은 각종 소형 전자기기, 통신기기 및 전기자동차의 전원용등 다양한 산업분야에 응용할 수 있는 고성능 리튬전지용 전극의 제조방법을 제공할 수 있으므로, 각종 기기의 국산화, 수입대체 및 수출증대 효과를 가질 수 있다.
    • 目的:提供一种改性用于锂二次电池的阳极的金属氧化物电极材料粉末的表面的方法和通过该方法制备的表面改性的电极材料粉末,以提高电极的导电性和可成形性。 构成:该方法包括以下步骤:将用于在真空烘箱中预处理的电极的金属氧化物颗粒加载到流化床化学气化反应器中; 向反应器中供应惰性气体以流化颗粒; 并通过使用伴随气体将有机金属前体提供给颗粒,或者将有机金属化合物溶解的溶液喷射到颗粒中,通过热解和化学汽化涂覆颗粒,由此形成厚度为1μm的金属或金属氧化物涂层, 300纳米。 优选涂覆的金属或金属氧化物选自Li,Al,Sn,Bi,Si,Sb,Ni,Cu,Ti,V,Cr,Mn,Fe,Co,Ag,Zr,Mo,Au, Ru,Pd,In,Pt,Ir,它们的合金以及它们的金属氧化物。