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公开(公告)号：KR100569185B1
公开(公告)日：2006-04-10
申请号：KR1020027015453
申请日：2000-05-19
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/058 , H01M2/145 , H01M2/162 , H01M2/1673 , H01M10/052 , H01M10/056 , H01M10/0565
Abstract: 본 발명은 신규한 하이브리드형 고분자 전해질, 이를 포함하는 리튬이차전지 및 이들의 제조방법을 제공한다. 보다 구체적으로는, 본 발명은 1-3000 nm의 직경을 갖는 입자로 이루어진 초극세 섬유상 다공성 고분자 매트릭스와, 상기 매트릭스 내에 함입되는 고분자 및 리튬염이 용해된 유기 전해액을 포함하는 하이브리드형 고분자 전해질을 제공한다. 상기 하이브리드형 고분자 전해질은 전극과의 접합성, 기계적 강도, 저온 및 고온특성 그리고 리튬이차전지용 유기 전해액과의 호환성이 우수하므로, 리튬이차전지의 제조에 응용될 수 있다.
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公开(公告)号：KR100406981B1
公开(公告)日：2003-11-28
申请号：KR1020000080518
申请日：2000-12-22
Applicant: 한국과학기술연구원
IPC: D01D5/11
CPC classification number: D01D5/0061
Abstract: The present invention relates to an apparatus of polymer web by electrospinning process and manufacturing method thereof, which can manufacture porous polymer web using an electrospinning method. The method for manufacturing porous polymer web by electrospinning process includes the steps of: forming, pressurizing and supplying at least one or more kinds of polymer materials in a liquid state; and discharging and piling the polymer materials to a collector through one or more charged nozzles, the collector being located under the nozzles and charged to have a polarity opposed to the polarity of the charged nozzles, the collector moving in a prescribed speed.
Abstract translation: 本发明涉及通过静电纺丝法制造聚合物网的设备及其制造方法，其可以使用静电纺丝法制造多孔聚合物网。 通过静电纺丝法制造多孔聚合物网的方法包括以下步骤：形成液体状态的至少一种或多种聚合物材料并加压供应; 以及通过一个或多个带电喷嘴将聚合物材料排出并堆叠到集电器，集电器位于喷嘴下方并被充电为具有与带电喷嘴的极性相反的极性，集电器以规定速度移动。
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13.发明授权
公开(公告)号：KR100365867B1
公开(公告)日：2002-12-26
申请号：KR1020000056462
申请日：2000-09-26
Applicant: 한국과학기술연구원
IPC: D01F2/02
Abstract: 본 발명은 용융점 이하로 과냉각된 액상 NMMO 수화물 용매를 사용하여 셀룰로오스 펄프 분말이 팽윤된 혼합체를 만들고 이를 용해시켜 분해가 적은 고균질의 셀룰로오스 용액을 제조하는 방법에 관한 것이다.
본 발명에 따르면, 용융된 액상의 NMMO 수화물 용매를 급냉하여 융점이하로 과냉각시키는 단계, 및 상기 과냉각 액상 NMMO 수화물 용매에 셀룰로오스 펄프 분말을 혼합하여 팽윤시키는 단계를 포함하는 액상 NMMO 수화물 용매를 이용한 고균질 셀룰로오스 용액의 제조방법이 제공됨으로써 용액의 균질성을 최대로 확보할 수 있으며, 또한 셀룰로오스의 분해 최소화 및 NMMO 분해의 최소화를 유지하면서도 생산성 향상과 공정의 간소화를 동시에 달성할 수 있다.-
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公开(公告)号：KR100590808B1
公开(公告)日：2006-06-19
申请号：KR1020027015455
申请日：2000-05-19
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/058 , H01M2/162 , H01M2/1673 , H01M10/052
Abstract: 본 발명은 리튬이차전지 및 그 제조방법을 제공한다. 보다 구체적으로는, 본 발명은 초극세 섬유상의 다공성 고분자 분리막을 포함하는 리튬이차전지 및 그 제조방법에 관한 것으로서, 상기 다공성 고분자 분리막은 a) 하나 이상의 고분자를 용융시키거나 또는 하나 이상의 고분자를 유기 용매에 용해시켜 용융 고분자 또는 고분자 용액을 얻는 단계, b) 상기 용융 고분자 또는 고분자 용액을 전하유도 방사장치 (electrospinning machine)의 배럴 (barrel)에 투입하는 단계, 및 c) 상기 용융 고분자 또는 고분자 용액을 기판 상에 노즐을 통하여 전하유도 방사시켜 다공성 분리막을 형성시키는 단계를 포함하는 방법에 의하여 제조된다. 본 발명의 리튬이차전지는 전극과의 접합성, 기계적 강도, 저온 및 고온 특성, 리튬이차전지용 유기 전해액과의 호환성이 우수하다.
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Patent Agency Ranking
公开(公告)号：KR1020030032165A
公开(公告)日：2003-04-26
申请号：KR1020010063751
申请日：2001-10-16
IPC: D01F2/24
Abstract: PURPOSE: A manufacturing method of a cellulose crimp fiber is characterized by using a melt fracture form without a special crimping process, and high shear rate to increase productivity and maximize energy efficiency. The cellulose crimp fiber has excellent flexibility and excellent crimp manifestation. CONSTITUTION: The cellulose crimp fiber is obtained by the steps of: preparing a cellulose spinning solution using 86-92wt.% of a N-methylmorpholine-N-oxide aqueous solution as a solvent; extruding the spinning solution into a spinning nozzle; melt-fracturing the flow of the cellulose extrusion to create crimp on the fiber and fixing it; and drying the fiber with steam of 120deg.C and hot blast of 150deg.C.
Abstract translation: 目的：纤维素卷曲纤维的制造方法的特征在于使用熔体断裂形式而没有特殊的压接方法，以及高剪切速率以提高生产率并最大限度地提高能量效率。 纤维素卷曲纤维具有优异的柔软性和优异的卷曲表现。 构成：通过以下步骤获得纤维素卷曲纤维：使用86-92重量％的N-甲基吗啉-N-氧化物水溶液作为溶剂制备纤维素纺丝溶液; 将纺丝溶液挤出到纺丝喷嘴中; 熔融压裂纤维素挤出物的流动以在纤维上产生卷曲并固定; 并用120℃蒸汽干燥纤维和150℃热风。
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公开(公告)号：KR1020030007634A
公开(公告)日：2003-01-23
申请号：KR1020027015456
申请日：2000-05-19
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/058 , H01M2/145 , H01M2/162 , H01M10/052 , H01M10/056 , H01M10/0565
Abstract: PURPOSE: Provided are a lithium secondary battery comprising super fine fibrous porous polymer electrolyte and its preparation method. The lithium secondary battery has advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolytes of a lithium secondary battery. CONSTITUTION: The lithium secondary battery comprises a cathode active material, an anode active material, a polymer electrolyte and an organic electrolyte solution dissolving a lithium salt, wherein the polymer electrolyte is constructed in the form of superfine fibers having a diameter of 1-3000nm. The polymer electrolyte is fabricated by the steps of: (a) dissolving at least one polymer with plasticizers and y organic electrolyte solvents to obtain at least one polymeric electrolyte solution; (b) adding the obtained polymeric electrolyte solution to a barrel of an electrospinning machine; and (c) electrospinning the polymeric electrolyte solution onto a substrate using a nozzle to form a polymer electrolyte film.
Abstract translation: 目的：提供一种包含超细纤维多孔聚合物电解质的锂二次电池及其制备方法。 锂二次电池具有电极粘附性好，机械强度高，在低温和高温下性能更好的优点，与锂二次电池的有机电解质的相容性更好。 构成：锂二次电池包括阴极活性物质，负极活性物质，聚合物电解质和溶解锂盐的有机电解质溶液，其中，聚合物电解质构成直径为1-3000nm的超细纤维。 通过以下步骤制造聚合物电解质：（a）用增塑剂和有机电解质溶剂溶解至少一种聚合物以获得至少一种聚合物电解质溶液; （b）将得到的高分子电解质溶液加入静电纺丝机的筒中; 和（c）使用喷嘴将聚合物电解质溶液电纺丝到基底上以形成聚合物电解质膜。
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公开(公告)号：KR1020020078706A
公开(公告)日：2002-10-19
申请号：KR1020010018727
申请日：2001-04-09
Applicant: 한국과학기술연구원
IPC: D01D5/00
CPC classification number: D01D5/0007 , D01D5/0069 , D02G3/447 , D02G3/448
Abstract: PURPOSE: An apparatus of preparing a porous polymer web by discharging and piling at least one liquid polymer material to a collector through one or more charged nozzles and then forming a polymer web by the collector is provided. Therefore, the porous web having high porosity and excellent productivity is produced. CONSTITUTION: The apparatus comprises: a spinning part comprising a barrel(10) for storing at least one kind of polymer material in a liquid state, and a pump(12) for pressing and supplying the liquid polymer material; a base(24) formed by an inlet pipe to receive the polymer material at its center, a base conductive plate attached on the upper surface of the base to transmit charges, at least one nozzle(31) formed by at least one needle mounted on the base conductive plate to discharge the polymer material and a charge distribution plate mounted under the base conductive plate; a first high-voltage generator(40); and a collector(50) for forming a polymer web.
Abstract translation: 目的：提供一种通过将至少一种液体聚合物材料通过一个或多个带电喷嘴排放和堆积到收集器，然后通过收集器形成聚合物网而制备多孔聚合物网的设备。 因此，制造出孔隙率高，生产率优异的多孔质网。 构成：该装置包括：纺丝部，其包括用于储存至少一种液态聚合物材料的筒体（10）和用于挤压和供给液体聚合物材料的泵（12）; 由入口管形成的基部（24），用于在其中心处接收聚合物材料;基底导电板，其附接在基部的上表面上以传输电荷;至少一个喷嘴（31），由至少一个针安装在其上的针 用于排出聚合物材料的基底导电板和安装在基底导电板下方的电荷分配板; 第一高压发生器（40）; 和用于形成聚合物网的收集器（50）。
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公开(公告)号：KR1020020051066A
公开(公告)日：2002-06-28
申请号：KR1020000080518
申请日：2000-12-22
Applicant: 한국과학기술연구원
IPC: D01D5/11
CPC classification number: D01D5/0061
Abstract: PURPOSE: An apparatus and method for preparing a porous web having high porosity and excellent productivity by dissolving a polymer in a solvent using a melt by an electro-spinning method are provided. Whereby, the web can be used in a secondary cell separator, polymer electrolyte membrane, fuel cell separator, filter, medical dressing, etc. CONSTITUTION: This apparatus comprises: a barrel(10) for storing one or more polymer materials; a spinning part(20) for spinning the polymer material supplied from a pump(12) through at least one nozzle(31); a high-voltage generating part(40) for polarizing the material; and a collector(50) for laminating the material and forming a web. At least one polymer material is pressured, discharged through one or more charged nozzles and laminated in a collector which is charged with different polarity from that of the charged nozzle and moves at a specified speed to produce a polymer web having a thickness of 1 to 100micron.
Abstract translation: 目的：提供一种通过电纺丝方法使用熔体将聚合物溶解在溶剂中而制备具有高孔隙率和优异生产率的多孔网的装置和方法。 因此，该网可用于二次电池隔板，聚合物电解质膜，燃料电池隔板，过滤器，医用敷料等。构成：该装置包括：用于储存一种或多种聚合物材料的桶（10） 用于将从泵（12）供应的聚合物材料旋转穿过至少一个喷嘴（31）的纺丝部分（20）; 用于使材料偏振的高压产生部件（40）; 以及用于层压材料并形成网的收集器（50）。 至少一种聚合物材料被加压，通过一个或多个带电喷嘴排出并层压在收集器中，该收集器被带入与加料喷嘴的极性不同的极性，并以特定的速度移动以产生具有1至100微米厚度的聚合物网 。
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20.发明公开
公开(公告)号：KR1020020024689A
公开(公告)日：2002-04-01
申请号：KR1020000056462
申请日：2000-09-26
Applicant: 한국과학기술연구원
IPC: D01F2/02
Abstract: PURPOSE: Provided is a method of preparing a cellulose solution to improve the homogeneity of solution with minimizing the degradation of cellulose and N-methylmorpholine-N-oxide by using the overcooled liquid N-methylmorpholine-N-oxide hydrate solvent. CONSTITUTION: The method comprises the steps of overcooling a liquid N-methylmorpholine-N-oxide hydrate solvent rapidly below the melting point; and adding a cellulose pulp powder to the overcooled N-methylmorpholine-N-oxide hydrate solvent to swell it. The overcooling is carried out by spraying a cooling air into the spray stream of the liquid N-methylmorpholine-N-oxide hydrate solvent. Preferably the N-methylmorpholine-N-oxide hydrate solvent has a water content of 8-18 wt%, and is cooled below 65 deg.C at 20 deg.C/min. The cellulose pulp has a diameter less than 1000 micrometer.
Abstract translation: 目的：提供一种制备纤维素溶液以通过使用过冷液体N-甲基吗啉-N-氧化物水合物溶剂使纤维素和N-甲基吗啉-N-氧化物降解最小化来提高溶液均匀性的方法。 方法：该方法包括将液体N-甲基吗啉-N-氧化物水合物溶剂快速低于熔点过冷的步骤; 并向过冷的N-甲基吗啉-N-氧化物水合物溶剂中加入纤维素纸浆粉末以使其膨胀。 通过将冷却空气喷射到液体N-甲基吗啉-N-氧化物水合物溶剂的喷射流中来进行过冷却。 优选地，N-甲基吗啉-N-氧化物水合物溶剂的水含量为8-18重量％，并以20℃/分钟冷却至65℃以下。 纤维素纸浆的直径小于1000微米。
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