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    • 1. 发明公开
    • 복합 고분자 전해질, 이를 이용한 리튬이차전지 및 그들의제조방법
    • 复合聚合物电解质,包含其的锂二次电池及其制造方法
    • KR1020030019385A
    • 2003-03-06
    • KR1020027015454
    • 2000-05-19
    • 한국과학기술연구원
    • 윤경석조병원조성무이화섭조원일박건유김형선김운석고석구천석원최성원
    • H01M10/05
    • H01M10/058H01M2/145H01M2/162H01M2/1673H01M10/052H01M10/056H01M10/0565
    • PURPOSE: Provided are a novel composite polymer electrolyte, a lithium secondary battery comprising the composite polymer electrolyte and their fabrication methods. The composite polymer electrolyte has improved adhesion with electrodes, good mechanical strength, improved performance at low and high temperatures, improved compatibility with organic electrolytes of lithium secondary battery and it can be applied to the manufacture of lithium secondary batteries. CONSTITUTION: The composite polymer electrolyte comprises super fine fibrous porous polymer electrolyte matrix with particles having diameter of 1 - 3000 nm, polymers and lithium salt-dissolved organic electrolyte solutions incorporated into the porous polymer electrolyte matrix. The fabrication method of the composite polymer electrolyte comprises the steps of: obtaining two or more polymeric solutions by dissolving two or more polymers which can be formed into fibers in a mixture of a plasticizer and an organic solvent respectively; filling the obtained polymeric solutions into different barrels of an electrospinning apparatus respectively and then discharging the polymeric solutions onto a substrate including a metal plate, a Mylar film and electrodes with different nozzles charged with a high voltage, to generate polymer electrolyte matrices in a state that the two or more polymer fibers are entangled with each other respectively; and injecting a polymer electrolyte solution containing a polymer and an organic electrolyte solution into the polymer electrolyte matrices. The lithium secondary battery comprises the composite polymer electrolyte and its fabrication method comprises the steps of: inserting the composite polymer electrolyte between an anode and a cathode; inserting the resulting plate into a battery casing after laminating or rolling it; injecting an organic electrolyte solution into the battery casing; and sealing the casing.
    • 目的:提供一种新型复合聚合物电解质,包含复合聚合物电解质的锂二次电池及其制造方法。 复合聚合物电解质具有改善的与电极的粘附性,良好的机械强度,在低温和高温下的改进性能,改善了与锂二次电池的有机电解质的相容性,并且可以应用于锂二次电池的制造。 构成:复合聚合物电解质包括掺入多孔聚合物电解质基质中的超细纤维多孔聚合物电解质基质,其具有直径为1至3000nm的颗粒,聚合物和锂盐溶解的有机电解质溶液。 复合聚合物电解质的制造方法包括以下步骤:通过将可形成纤维的两种或更多种聚合物分别溶解在增塑剂和有机溶剂的混合物中来获得两种或多种聚合物溶液; 将获得的聚合物溶液分别填充到不同的电纺丝装置的筒中,然后将聚合物溶液排放到包括金属板,聚酯薄膜和具有加高电压的不同喷嘴的电极的基底上,以产生聚合物电解质基质, 两种或多种聚合物纤维分别缠结在一起; 并将含有聚合物和有机电解质溶液的聚合物电解质溶液注入聚合物电解质基质中。 锂二次电池包括复合高分子电解质,其制造方法包括以下步骤:在阳极和阴极之间插入复合聚合物电解质; 将所得的板材在层压或轧制之后将其插入电池壳体中; 将有机电解质溶液注入到电池壳体中; 并密封外壳。
    • 5. 发明公开
    • 초극세 섬유상의 고분자 전해질을 포함하는 리튬이차전지및 그 제조방법
    • 包含超细纤维聚合物电解质的锂二次电池及其制造方法
    • KR1020030007634A
    • 2003-01-23
    • KR1020027015456
    • 2000-05-19
    • 한국과학기술연구원
    • 윤경석조병원조성무이화섭조원일박건유김형선김운석고석구천석원최성원
    • H01M10/05
    • H01M10/058H01M2/145H01M2/162H01M10/052H01M10/056H01M10/0565
    • 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.
    • 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。
    • 8. 发明公开
    • 스타형 글리콜라이드/ε-카프로락톤 공중합체 및 그의 제조 방법
    • 星形胶囊/ EPSILON-CAPROLACTONE共聚物及其制备方法
    • KR1020010036366A
    • 2001-05-07
    • KR1019990043342
    • 1999-10-08
    • 한국과학기술연구원주식회사 삼양홀딩스
    • 김영하김수현박기동최성원
    • C08F222/10
    • C08G63/08A61L17/12C08G63/78
    • PURPOSE: A star-shaped glycolide/epsilon-caprolactone co-polymer and a preparation method thereof are provided, which has a weight average molecular weight over 30,000 and a low melting viscosity. CONSTITUTION: A preparation method of star-shaped biodegradable glycolide/epsilon-caprolactone co-polymer of formula 1 comprises: in the presence of ring-opening polymerization catalyst of glycolide/epsilon-caprolactone, performing a ring-opening polymerization by heating glycolide and epsilon-caprolactone through using polyhydric alcohol as polymerization initiator under vacuum pressure. The polyhydric alcohol is selected from the group of glycerol, penta-erythritol, di-penta-erythritol, tri-penta-erythritol, sorbitol, poly-vinyl alcohol, poly-hydroxy ethyl methacrylate, and poly-hydroxy propyl methacrylate. The catalyst is selected from the group of tetra-phenyl tin, tin powder, stannous octoate, tin chloride, tin oxide, zinc powder, di-ethyl zinc octoate, zinc chloride, and zinc oxide.
    • 目的:提供一种星形乙交酯/ε-己内酯共聚物及其制备方法,其重均分子量超过30,000,熔点低。 构成:式1的星形生物可降解乙交酯/ε-己内酯共聚物的制备方法包括:在乙交酯/ε-己内酯的开环聚合催化剂存在下,通过加热乙交酯和ε进行开环聚合 通过在真空压力下使用多元醇作为聚合引发剂。 多元醇选自甘油,季戊四醇,二季戊四醇,三季戊四醇,山梨糖醇,聚乙烯醇,甲基丙烯酸聚羟基乙酯,甲基丙烯酸聚羟基丙酯等。 催化剂选自四苯基锡,锡粉,辛酸亚锡,氯化锡,氧化锡,锌粉,二乙基辛酸锌,氯化锌和氧化锌。