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公开(公告)号：KR1020100073763A
公开(公告)日：2010-07-01
申请号：KR1020080132518
申请日：2008-12-23
Applicant: 고려대학교 산학협력단
Abstract: PURPOSE: A low-steel friction material and a vehicle brake including the same are provided to improve frictional characteristic due to the change of frictional coefficient according to speed and braking deceleration and due to an excellent resistance to a fade. CONSTITUTION: A low-steel friction material comprises: a solid lubricant whose grain size is 180-220 micron; and an abrasive material whose grain size is 0.5-10 micron. The solid lubricant includes graphite, antimonous sulphide, zinc sulfide, copper sulfide, or the mixture of the same. The abrasive includes zirconium silicate, alumina, silicon dioxide, magnesium oxide, or the mixture of the same. The volume percentage of the solid lubricant is 13-15%. The volume percentage of the abrasive is 4-6%. The friction material includes textile material, binder, filler, and friction modifier.
Abstract translation: 目的：提供一种低钢摩擦材料和包括该低钢摩擦材料的车辆制动器，以根据速度和制动减速度以及由于优异的抗褪色性而改善摩擦系数的摩擦特性。 构成：低钢摩擦材料包括：粒径为180-220微米的固体润滑剂; 和粒度为0.5-10微米的研磨材料。 固体润滑剂包括石墨，硫化锑，硫化锌，硫化铜或其混合物。 研磨剂包括硅酸锆，氧化铝，二氧化硅，氧化镁或其混合物。 固体润滑剂的体积百分比为13-15％。 磨料的体积百分比为4-6％。 摩擦材料包括纺织材料，粘合剂，填料和摩擦改性剂。
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公开(公告)号：KR100791632B1
公开(公告)日：2008-01-04
申请号：KR1020060066683
申请日：2006-07-18
Applicant: 고려대학교 산학협력단
IPC: G01M17/04
Abstract: An apparatus for testing performance of a brake pad of a car is provided to perform a performance test in an inertial braking mode and a dragging mode as well as to make it easy to attach and detach the brake pad. An apparatus for testing performance of a brake pad(90) of a car includes a motor, a first shaft(34), a second shaft(36), an inertia wheel(46), a friction disk(52), a disk braking unit(50), an oil pressure supply unit, a torque detecting unit, and a control unit. The motor is driven by external power to generate torque. The first shaft is dynamically connected to the motor and rotates by the rotation force of the motor. The second shaft is positioned on the same line as the first shaft. The inertia wheel is fixed to the second shaft and applies inertia to a rotation of the second shaft. The friction disk is removably mounted on the second shaft and has the same rotation center as the second shaft. The disk braking unit brakes the friction disk in a thickness direction by the use of the brake pad. The oil pressure supply unit drives the disk braking unit. The torque detecting unit measures the force applied to the disk braking unit. The control unit controls the motor, a clutch, the disk braking unit, the torque detecting unit, and the oil pressure supply unit.
Abstract translation: 提供了一种用于测试汽车的刹车片的性能的装置，以在惯性制动模式和拖动模式下执行性能测试，并且使得容易安装和拆卸制动衬块。 一种用于测试汽车的制动衬块（90）的性能的装置，包括电动机，第一轴（34），第二轴（36），惯性轮（46），摩擦盘（52），盘式制动 单元（50），油压供给单元，扭矩检测单元和控制单元。 电机由外部电源驱动以产生扭矩。 第一轴动力地连接到电动机，并通过电动机的旋转力旋转。 第二轴位于与第一轴相同的线上。 惯性轮被固定到第二轴上并且对第二轴的旋转施加惯性。 摩擦盘可拆卸地安装在第二轴上并具有与第二轴相同的旋转中心。 盘式制动单元通过使用制动片在厚度方向上制动摩擦盘。 油压供应单元驱动盘式制动单元。 转矩检测单元测量施加到盘式制动单元的力。 控制单元控制电动机，离合器，盘式制动单元，扭矩检测单元和油压供应单元。
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公开(公告)号：KR1020130029667A
公开(公告)日：2013-03-25
申请号：KR1020110093079
申请日：2011-09-15
Applicant: 고려대학교 산학협력단
IPC: C01B25/45 , H01M4/58 , H01B1/06 , H01M10/0525
CPC classification number: C01B25/45 , C01P2004/24 , C01P2006/40 , H01M4/5825 , H01M10/052
Abstract: PURPOSE: Lithium iron phosphate, a producing method thereof, and an electrochemical device including thereof are provided to improve the lithium diffusivity of conventional lithium iron phosphate by being synthesized at a relatively low temperature. CONSTITUTION: A producing method of lithium iron phosphate comprises the following steps: dissolving lithium acetate, iron sulfate, and ammonium dihydrogen phosphate in distilled water in a molar ratio of 1-3:1:1 to obtain a mixed solution; adding ethylene glycol into the mixed solution for adjusting the shape of the finally produced lithium iron phosphate; and hydrothermally synthesizing the mixed solution at 150-200 deg. C for 10-14 hours in the pressure of 3-6 bar.
Abstract translation: 目的：提供磷酸铁锂及其制备方法及其电化学装置，以通过在较低温度下合成来改善常规磷酸铁锂的锂扩散性。 构成：磷酸铁锂的制造方法包括以下步骤：将乙酸锂，硫酸铁和磷酸二氢铵溶解在蒸馏水中，摩尔比为1-3:1:1，得到混合溶液; 在混合溶液中加入乙二醇以调节最终生产的磷酸铁锂的形状; 并在150-200度水热合成混合溶液。 C为10-14小时，压力为3-6巴。
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公开(公告)号：KR1020120004863A
公开(公告)日：2012-01-13
申请号：KR1020100065569
申请日：2010-07-07
Applicant: 고려대학교 산학협력단
Abstract: PURPOSE: A polyamide based resin composition and a worm gear containing thereof are provided to offer the excellent strength and the low frictional coefficient of the composition to the worm gear. CONSTITUTION: A polyamide based resin composition contains a polyamide system resin and a glass fiber. The polyamide system resin contains compounds selected from polyamide 66 or polyamide 612. The glass fiver is surface-processed with ethylene-acrylic ester-glycidyl methacrylate. A worm gear is produced by preparing the resin composition, and molding the resin composition.
Abstract translation: 目的：提供聚酰胺基树脂组合物和含有其的蜗轮，以提供组合物对蜗轮的优异强度和低摩擦系数。 构成：聚酰胺系树脂组合物含有聚酰胺系树脂和玻璃纤维。 聚酰胺系树脂含有选自聚酰胺66或聚酰胺612的化合物。玻璃纤维用甲基丙烯酸乙烯 - 丙烯酸酯 - 缩水甘油酯进行表面处理。 通过制备树脂组合物并模制树脂组合物来制造蜗轮。
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15.发明公开습식 기계화학적 밀링을 이용한 리튬 아이언 포스페이트 제조 방법, 그 방법에 의해 제조된 리튬 아이언 포스페이트및 이를 양극 활물질에 포함하는 리튬이차전지 有权使用湿法机械研磨制备LIFEPO4的方法和使用该方法制造的LIFEPO4
公开(公告)号：KR1020100100486A
公开(公告)日：2010-09-15
申请号：KR1020090019403
申请日：2009-03-06
Applicant: 고려대학교 산학협력단 , 주식회사 엘 앤 에프
CPC classification number: H01M4/5825 , C01B25/375 , H01M4/366 , H01M4/583 , H01M4/625 , H01M10/052 , Y02E60/122
Abstract: PURPOSE: A manufacturing method of lithium iron phosphate, the lithium iron phosphate manufactured therefrom, and a lithium secondary battery including thereof are provided to simplify the manufacturing process of the lithium iron phosphate by removing a transition metal substitution process. CONSTITUTION: A manufacturing method of lithium iron phosphate comprises the following steps: inserting a starting material to a milling bowl(S110); inserting a wet milling media to the milling bowl(S120); forming a precursor of the lithium iron phosphate through wet milling(S130); and synthesizing the lithium iron phosphate by heat-processing the precursor(S140).
Abstract translation: 目的：提供磷酸铁锂，由其制造的磷酸铁锂及其二次电池的制造方法，以通过去除过渡金属取代工艺来简化磷酸铁锂的制造过程。 构成：磷酸铁锂的制造方法包括以下步骤：将起始材料插入研磨钵（S110）中; 将湿研磨介质插入研钵中（S120）; 通过湿法研磨形成磷酸铁锂的前体（S130）; 并通过加热前体合成磷酸铁锂（S140）。
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Patent Agency Ranking16.发明授权졸-겔 코팅법을 사용하여 지르코니아를 코팅한 연료전지분리판의 제조방법과 이를 이용한 연료전지 분리판, 및이를 이용한 연료전지 有权通过氧化锆溶胶 - 凝胶涂层的燃料电池双极板，其制造方法和使用其的燃料电池
公开(公告)号：KR100961989B1
公开(公告)日：2010-06-08
申请号：KR1020070135822
申请日：2007-12-21
Applicant: 고려대학교 산학협력단
IPC: H01M8/02
CPC classification number: Y02P70/56
Abstract: 본 발명은 스테인리스 강을 이용한 연료전지 분리판의 제조방법에 있어서, (a) 지르코늄 화합물을 포함하는 졸-겔 용액을 제조하는 단계; (b) 상기 졸-겔 용액에 스테인리스 강을 딥 코팅하는 단계; 및 (c) 상기 딥 코팅된 스테인리스 강을 열처리하는 단계를 포함하는 연료전지 분리판 제조방법을 개시한다. 본 발명에 따라 제조된 지르코니아가 코팅된 316L 스테인리스 강은 내식성이 우수하고, 또한 상용 고분자 전해질 연료전지(PEMFC)의 분리판에 요구되는 전기전도도를 갖추고 있으므로 PEMFC 분리판으로 사용가능하다.
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17.发明授权리튬 이차전지용 캐소드의 제조방법, 이에 의해서 제조된리튬 이차전지용 캐소드 및 이를 포함하는 리튬 이차전지 失效用于制备锂二次电池阴极电极的方法，包括阴极电极的方法和锂二次电池制备的阴极电极
公开(公告)号：KR100805267B1
公开(公告)日：2008-02-20
申请号：KR1020060098715
申请日：2006-10-11
Applicant: 고려대학교 산학협력단
CPC classification number: H01M4/0404 , C01P2002/70 , C01P2004/03 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/621 , H01M4/624 , H01M10/0525 , H01M2004/021 , H01M2004/027
Abstract: A lithium secondary battery is provided to simplify a conventional coating process for manufacturing a cathode, and to realize excellent cycling stability and structural stability by preventing dissolution of a cathode active material caused by an electrolyte while maintaining the initial capacity. A lithium secondary battery comprises: an anode; a cathode obtained by mixing 100 parts by weight of a lithium transition metal oxide, 5-20 parts by weight of a conductive agent and 3-15 parts by weight of a binder, adding to the resultant mixture 2-4 wt.% of any one compound selected from ZrO2, Al2O3, SiO2, ZnO, TiO2 and SnO2 based on the weight of the lithium transition metal oxide to obtain slurry, and coating a collector with the slurry, followed by drying and rolling; a separator interposed between the anode and the cathode; and an electrolyte containing LiPF6.
Abstract translation: 提供锂二次电池以简化用于制造阴极的常规涂覆工艺，并且通过防止由电解质引起的阴极活性材料的溶解而保持初始容量而实现优异的循环稳定性和结构稳定性。 锂二次电池包括：阳极; 通过将100重量份的锂过渡金属氧化物，5-20重量份的导电剂和3-15重量份的粘合剂混合而获得的阴极，向所得混合物中加入2-4重量％的任何 一种选自ZrO 2，Al 2 O 3，SiO 2，ZnO，TiO 2和SnO 2的化合物，以获得浆料，并用浆料涂布集电体，然后干燥和轧制; 介于阳极和阴极之间的隔膜; 和含有LiPF 6的电解质。
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19.发明公开졸-겔 코팅법을 사용하여 ＮｉＯ-ＹＳＺ를 코팅한 연료전지 분리판의 제조방법, 이를 이용한 연료전지 분리판 및 연료전지 无效燃料电池双极板由NIO-YSZ溶胶凝胶涂料，其制造方法和使用它的燃料电池
公开(公告)号：KR1020130104916A
公开(公告)日：2013-09-25
申请号：KR1020120026873
申请日：2012-03-16
Applicant: 고려대학교 산학협력단
Abstract: PURPOSE: A manufacturing method of a fuel cell separator is provided to improve corrosion resistance, electric conductivity, and strength of a fuel cell separator by uniformly coating an oxide nickel-including yttria-stabilized zirconia on the surface of a stainless steel separator. CONSTITUTION: A manufacturing method of a fuel cell separator comprises a step of manufacturing a sol-gel solution by dissolving a nickel precursor, yttrium precursor, and zirconium precursor into a solvent; a step of dip-coating the stainless steel with the sol-gel solution; and a step of heat-treating the stainless steel. The separator is coated with a NiO-YSZ layer. The thickness of the coating layer is 0.1-1 micron. The content of Ni is 5-25 wt% based on the total weight of the NiO-YSZ coating layer.
Abstract translation: 目的：提供一种燃料电池隔板的制造方法，以通过在不锈钢隔板的表面上均匀涂覆含氧化镍的氧化钇稳定的氧化锆来提高燃料电池隔板的耐腐蚀性，导电性和强度。 构成：燃料电池分离器的制造方法包括通过将镍前体，钇前体和锆前体溶解在溶剂中来制造溶胶 - 凝胶溶液的步骤; 用溶胶 - 凝胶溶液浸涂不锈钢的步骤; 以及对不锈钢进行热处理的步骤。 隔膜涂有NiO-YSZ层。 涂层的厚度为0.1-1微米。 Ni的含量相对于NiO-YSZ涂层的总重量为5〜25重量％。
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20.发明授权습식 기계화학적 밀링을 이용한 리튬 아이언 포스페이트 제조 방법, 그 방법에 의해 제조된 리튬 아이언 포스페이트및 이를 양극 활물질에 포함하는 리튬이차전지 有权采用湿式机械化学研磨法制备LiFePO4的方法和使用该方法制备的LiFePO4
公开(公告)号：KR101078607B1
公开(公告)日：2011-11-01
申请号：KR1020090019403
申请日：2009-03-06
Applicant: 고려대학교 산학협력단 , 주식회사 엘 앤 에프
Abstract: 본발명에따른 LiFePO제조방법은 LiFePO합성을위한출발물질에습식밀링매개체를첨가함으로써별도의흑연첨가제를첨가하지않더라도열처리과정에서잔류흑연이합성된 LiFePO표면에코팅됨으로써 LiFePO의전기전도도문제를해결할수 있는장점이있다.
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