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公开(公告)号：KR1020010048933A
公开(公告)日：2001-06-15
申请号：KR1019990053817
申请日：1999-11-30
IPC: H01M10/05
CPC classification number: H01M10/0525 , H01M10/056
Abstract: PURPOSE: An ultra-violet ray hardened polymer blend electrolyte is provided, which has good mechanical physical properties and electrical properties and improves the process for preparing a battery. And its preparation method and a lithium ion polymer battery which has improved battery performances such as contacting property with electrode, low temperature property, high rate discharge property, charge and discharge property, battery capacity and life using the same are also provided. CONSTITUTION: The ultra-violet ray hardened polymer blend electrolyte comprises: (i) 5-95% of function-I polymer comprising one of polyethylene glycol diacrylate and polyethylene glycol dimethacrylate or a mixture thereof; and (ii) 5-95% of function-II polymer comprising one selected from polyvinylidene fluoride polymer, polyacrylonitrile polymer, polymethylmethacrylate polymer or polyvinylchloride polymer or mixtures thereof. The method comprises steps of: (i) mixing the above polymer blend, 100-900 wt.% of liquid electrolyte regarding the weight of the polymer blend and 0-20 wt.% of silicon dioxide or alumina regarding the weight of the polymer blend for 1-12 hours; (ii) heating the mixture of the step (i) at a temperature of 50-150 deg.C; (iii) swelling the heated mixture for 0.5-5 hours; (iv) adding each 0.1-5.0 wt.% of an initiator for ultra-violet ray hardening and a hardening accelerant regarding the total weight of the polymer mixture to the swollen polymer mixture and then stirring the mixture for 0.5-30 minutes; (v) casting the polymer blend; and (vi) irradiating the ultra-violet rays to the product of the step (v) to harden. The lithium ion polymer battery comprises: (i) a laminate which is prepared by laminating a cathode, the polymer blend, an anode, the polymer blend, and a cathode in sequence; (ii) terminals which are connected to the cathode and the anode; and (iii) a battery case which covers up and seals the laminate.
Abstract translation: 目的：提供紫外线硬化聚合物共混电解质，具有良好的机械物理性能和电学性能，改善了制备电池的工艺。 还提供了其制备方法和具有改善的电极性能如电极接触性能，低温性能，高倍率放电性能，充放电性能，电池容量和使用寿命的锂离子聚合物电池。 构成：紫外线硬化聚合物共混电解质包括：（i）5-95％的包含聚乙二醇二丙烯酸酯和聚乙二醇二甲基丙烯酸酯或其混合物的功能聚合物; 和（ii）包含选自聚偏二氟乙烯聚合物，聚丙烯腈聚合物，聚甲基丙烯酸甲酯聚合物或聚氯乙烯聚合物或其混合物中的一种的功能II聚合物的5-95％。 该方法包括以下步骤：（i）混合上述聚合物共混物，关于聚合物共混物的重量为100-900重量％的液体电解质和关于聚合物共混物的重量的0-20重量％的二氧化硅或氧化铝 1-12小时; （ⅱ）在50-150℃的温度下加热步骤（ⅰ）的混合物; （iii）将加热的混合物溶胀0.5-5小时; （iv）将每个0.1-5.0重量％的用于紫外线硬化的引发剂和关于聚合物混合物的总重量的硬化促进剂加入到溶胀的聚合物混合物中，然后将混合物搅拌0.5-30分钟; （v）浇注聚合物共混物; 和（vi）将紫外线照射到步骤（v）的产物中以硬化。 锂离子聚合物电池包括：（i）通过依次层压阴极，聚合物共混物，阳极，聚合物共混物和阴极制备的层压体; （ii）连接到阴极和阳极的端子; 和（iii）覆盖并密封层压板的电池盒。
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公开(公告)号：KR100354455B1
公开(公告)日：2002-09-30
申请号：KR1019990053817
申请日：1999-11-30
IPC: H01M10/05
CPC classification number: H01M10/0525 , H01M10/056
Abstract: 자외선경화를통하여중합되는폴리에틸렌글리콜디아크릴레이트 (PEGDA), 폴리에틸렌글리콜디메타크릴레이트 (PEGDMA) 자외선경화형고분자인기능-I의고분자와우수한전기적, 기계적물성을보이는폴리비닐리덴풀루오라이드 (PVdF), 폴리아크릴로니트릴 (PAN), 폴리메틸메타크릴레이트 (PMMA), 폴리비닐클로라이드 (PVC) 등의기능-II의고분자를일정한중량% 내에서블렌딩을하여기계적물성과전기적특성이우수할뿐 아니라자외선중합제조공정을이용하여제막공정시간을단축할수 있는새로운형태의고분자전해질을제시한다. 본발명의고분자전해질은비결정균질상이며고분자전해질을코발트양극과탄소음극에조합하여전지를조립할경우전극과의접촉성, 저온특성, 고율방전특성, 충방전특성, 전지용량및 수명등의전지성능이기존의고분자전해질에비하여우수한것이다.
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公开(公告)号：KR100533647B1
公开(公告)日：2005-12-06
申请号：KR1020027013109
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/0565 , H01M10/052 , H01M10/0525 , H01M10/056 , H01M2300/0091
Abstract: 본 발명은 A) 식 1을 갖는 에틸렌글리콜디(메타)아크릴레이트
올리고머를 자외선 경화시켜 얻어진 기능-I 고분자;
CH
2 =CR
1 COO(CH
2 CH
2 O)
n COCR
2 =CH
2 (I)
식 I에서 R
1 및 R
2 는 독립적으로 수소 또는 메틸이며, n은 3-20의 정수이고,
B) 폴리아크릴로니트릴(PAN), 폴리메틸메타크릴레이트(PMMA) 및 그 혼합물로 구성되는 군에서 선택되는 기능-II 고분자;
C) 폴리비닐리덴플루오라이드(PVdF), 폴리비닐클로라이드(PVC) 및 이들의 혼합물로 구성되는 군에서 선택되는 기능-III 고분자; 및
D) 리튬염이 유기 용매에 용해되어 있는 유기전해액을 포함하는, 자외선 경화형 다성분계 고분자 블렌드 전해질, 리튬이차전지 및 이들의 제조방법에 관한 것이다.-
公开(公告)号：KR1020030005256A
公开(公告)日：2003-01-17
申请号：KR1020027013109
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/0565 , H01M10/052 , H01M10/0525 , H01M10/056 , H01M2300/0091
Abstract: PURPOSE: An UV-curing multi-component polymer blend electrolyte, a lithium secondary battery containing the electrolyte and their preparation methods are provided, to improve the adhesive strength, the mechanical properties, the low and high temperature characteristic, the high rate discharge capacity, the lifetime, the capacity and the stability of a battery. CONSTITUTION: The UV-curing multi-component polymer blend electrolyte comprises a function-I polymer; a function-II polymer; a function-III polymer; an organic electrolyte solution which is prepared by dissolving a lithium salt into an organic solvent; and optionally at least one selected from the group consisting of a plasticizer, a porous filler, a UV curing initiator and a curing accelerator. The function-I polymer is obtained by UV curing the ethylene glycol di(meth)acrylate oligomer represented by the formula CH2=CR1COO(CH2CH2O)nCOCR2=CH2, wherein R1 and R2 are independent each other and are H or methyl group and n is an integer of 3-20; the function-II polymer is selected from the group consisting of polyacrylonitrile, poly(methyl methacrylate) and their mixture; and the function-III polymer is selected from the group consisting of polyvinylidene fluoride, poly(vinyl chloride) and their mixture. Preferably the lithium salt is selected from the group consisting of LiPF6, LiClO4, LiAsF6, LiBF4, LiCF3SO3, Li(CF3SO2)2N and their mixtures; and the organic solvent is selected from the group consisting of ethylene carbonate, propylene carbonate, diethyl carbonate, dimethyl carbonate, ethylmethyl carbonate and their mixtures.
Abstract translation: 目的：提供紫外线固化多组分聚合物共混电解质，含有电解质的锂二次电池及其制备方法，提高粘合强度，机械性能，低温高温特性，高放电容量， 电池的寿命，容量和稳定性。 构成：紫外线固化多组分聚合物共混电解质包含一种功能聚合物; 功能II聚合物; 功能III聚合物; 通过将锂盐溶解在有机溶剂中制备的有机电解质溶液; 和任选的选自增塑剂，多孔填料，UV固化引发剂和固化促进剂中的至少一种。 通过紫外线固化式CH 2 = CR 1 COO（CH 2 CH 2 O）n COCR 2 = CH 2表示的乙二醇二（甲基）丙烯酸酯低聚物，其中R1和R2彼此独立，为H或甲基，n为 3-20的整数; 功能II聚合物选自聚丙烯腈，聚（甲基丙烯酸甲酯）及其混合物; 并且功能III聚合物选自聚偏二氟乙烯，聚（氯乙烯）及其混合物。 优选锂盐选自LiPF 6，LiClO 4，LiAsF 6，LiBF 4，LiCF 3 SO 3，Li（CF 3 SO 2）2 N及其混合物; 有机溶剂选自碳酸亚乙酯，碳酸亚丙酯，碳酸二乙酯，碳酸二甲酯，碳酸甲乙酯及其混合物。
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