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公开(公告)号：KR1020030005254A
公开(公告)日：2003-01-17
申请号：KR1020027013106
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M2/1653 , H01M2/1686 , H01M10/052 , H01M10/056 , H01M10/0565 , H01M2300/0094
Abstract: PURPOSE: A multi-layered polymer electrolyte and a lithium secondary battery containing the electrolyte are provided, to improve the adhesive strength, the mechanical properties, the low and high temperature characteristics, the high rate discharge capacity, the lifetime, the capacity and the stability of a battery. CONSTITUTION: The electrolyte comprises a separation membrane layer, a gel polymer electrolyte layer, and an organic electrolyte solution which is prepared by dissolving a lithium salt into an organic solvent. The separation membrane layer is made of a polymer electrolyte, polypropylene, polyethylene, polyvinylidene fluoride or non-woven; the gel polymer electrolyte layer comprises 5-90 wt% of a polyacrylonitrile-based polymer, 5-80 wt% of a polyvinylidene fluoride-based polymer or a poly(methyl methacrylate)-based polymer, and 5-80 wt% of a poly(vinyl chloride)-based polymer or a polyvinylidene fluoride-based polymer, and is coated to the one or both sides of the separation membrane. 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：提供一种多层聚合物电解质和含有电解质的锂二次电池，以提高粘合强度，机械性能，低温和高温特性，高放电容量，寿命，容量和稳定性 的电池。 构成：电解质包含分离膜层，凝胶聚合物电解质层和通过将锂盐溶解在有机溶剂中而制备的有机电解质溶液。 分离膜层由聚合物电解质，聚丙烯，聚乙烯，聚偏二氟乙烯或无纺布制成; 凝胶聚合物电解质层包含5-90重量％的基于聚丙烯腈的聚合物，5-80重量％的聚偏二氟乙烯基聚合物或聚（甲基丙烯酸甲酯）基聚合物，以及5-80重量％的聚 （氯乙烯）类聚合物或聚偏二氟乙烯类聚合物，并且被涂覆在分离膜的一侧或两侧。 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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公开(公告)号：KR1020020093536A
公开(公告)日：2002-12-16
申请号：KR1020010032338
申请日：2001-06-09
Applicant: 한국과학기술연구원
IPC: H01M10/36
Abstract: PURPOSE: A lithium electrode combined with a separator membrane in a body and a primary or secondary lithium battery employing the electrode are provided, to improve the capacity of a battery, the charging/discharging efficiency and the lifetime. CONSTITUTION: The lithium electrode is combined with a separator membrane in a body, which one side of the separator membrane is coated with lithium and metals in multilayered structure or composite structure by several to several tens micrometers. The metal is selected from the group consisting of Li, Al, Sn, Bi, Si, Sb, Ni, Cu, Ti, V, Cr, Mn, Co, Zn, Mo, W, Ag, Au, Ru, Pt and their alloys. The separator membrane comprises the material selected from the group consisting of PP, PE, PVdF and nonwoven. The secondary lithium battery comprises the lithium electrode, and a positive electrode active material selected from the group consisting of LiCoO2, LiNiO2, LiNiCoO2, LiMn2O4, V2O5 and V6O13. The primary lithium battery comprises the lithium electrode, and a positive electrode active material selected from the group consisting of MnO2, (CF)n and SOCl2.
Abstract translation: 目的：提供一种与体内隔离膜结合的锂电极和使用电极的一次或二次锂电池，以提高电池的容量，充放电效率和使用寿命。 构成：将锂电极与主体中的隔膜结合，隔膜的一侧用多层结构或复合结构的锂和金属涂覆数几十微米。 金属选自Li，Al，Sn，Bi，Si，Sb，Ni，Cu，Ti，V，Cr，Mn，Co，Zn，Mo，W，Ag，Au，Ru，Pt及其 合金。 分离膜包括选自PP，PE，PVdF和非织造材料的材料。 二次锂电池包括锂电极和选自LiCoO 2，LiNiO 2，LiNiCoO 2，LiMn 2 O 4，V 2 O 5和V 6 O 13的正极活性物质。 一次锂电池包括锂电极和选自MnO 2，（CF）n和SOCl 2的正极活性物质。
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公开(公告)号：KR1020020088416A
公开(公告)日：2002-11-27
申请号：KR1020027013108
申请日：2001-01-31
Applicant: 한국과학기술연구원
IPC: H01M4/38
Abstract: PURPOSE: A lithium-metal composite electrode, its preparation method and a lithium battery using the electrode are provided, to improve the conductivity of an electrode and to maintain the potential distribution of the surface of an electrode, thereby enhancing the utilization rate, the cycle lifetime and the charge/discharge efficiency of a battery. CONSTITUTION: The lithium-metal composite electrode comprises the mixture of lithium particle or lithium alloy particle and a metal. 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. 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. The method comprises the steps of evaporation-depositing the lithium or lithium alloy and the metal on the current collector simultaneously by using the thin film making technique; and compressing the deposited one with a pressure of 10-100 kg/cm¬2.
Abstract translation: 目的：提供锂金属复合电极及其制备方法和使用该电极的锂电池，以提高电极的导电性并保持电极表面的电位分布，从而提高利用率，循环 寿命和电池的充放电效率。 构成：锂金属复合电极包括锂颗粒或锂合金颗粒与金属的混合物。 金属选自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及其合金中的金属和锂的合金。 该方法包括以下步骤：通过使用薄膜制备技术同时将集电体上的锂或锂合金和金属蒸发沉积; 并以10-100kg / cm 2的压力压缩沉积的。
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Patent Agency Ranking
公开(公告)号：KR100301623B1
公开(公告)日：2001-11-30
申请号：KR1019980024196
申请日：1998-06-25
Applicant: 한국과학기술연구원
IPC: H01M10/05
Abstract: 본발명은 5∼90중량%의 PMMA계 화합물 및 PAN계 화합물, PVC계 화합물 및 PVdF계 화합물로 이루어진 그룹으로부터 선택된 하나이상의 화합물을 각각 80중량%이하로 혼합하여 이루어지는 PMMA계/PAN계/PVC계/PVdF계 혼합물에, 가소제 및 유기용매를 혼합하고 이를 캐스팅하여 건조함으로써 고체고분자 막을 얻은 후, 리튬염이 용해된 유기용매전해질을 주입하는 것으로 이루어지는 것을 특징으로 하는 다성분계 고체고분자 전해질의 제조방법에 관한 것으로, 본발명에 의한 고체고분자 전해질들은 이온전도도가 리튬 고분자 전지용 전해질로서 충분히 사용할 수 있을 정도로 우수하고 접착력 및 기계적 강도도 우수하여 전지제조가 용이할 뿐만 아니라 이를 이용한 전지는 전극용량 및 싸이클 수명 특성과 같은 전지성능도 우수하게 나타나 리튬고분자 전지용 고체� ��분자 전해질로서 매우 적합한 것으로 나타났다.
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公开(公告)号：KR100275788B1
公开(公告)日：2000-12-15
申请号：KR1019980019241
申请日：1998-05-27
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/0525 , H01M4/1391 , H01M4/1393 , H01M10/0565 , H01M10/0585
Abstract: PURPOSE: A solid polymer electrolyte and method for producing lithium polymer battery are provided for enhancing adhesiveness and mechanical stability of laminate formed by the solid electrolyte without alteration of ionic conductivity by blending PAN and PVdF polymers. CONSTITUTION: The solid polymer electrolyte is produced by mixing PAN and PVdF polymers as the starting materials in a weight ratio of 10:1-1:5, blending it with the organic solvent, SiO2 and the plasticizer; heating the resultant mixture to form solid polymer electrolyte matrix; casting the matrix. The amount of organic solvent added is 1-5 times the amount of the starting materials. The amount of SiO2 is 1-20 wt.% based on the weight of the starting materials. The heating process is carried out at 110-180 deg.C. for 10 minutes to 2 hours. The lithium polymer battery is produced by mixing the solid polymer electrolyte together with the plasticizer to prepare the combined anode and cathode and laminating the electrolyte to form the final product.
Abstract translation: 目的：提供一种固体聚合物电解质和锂聚合物电池的制造方法，用于通过混合PAN和PVdF聚合物来提高由固体电解质形成的层压体的粘合性和机械稳定性，而不会改变离子导电性。 构成：固体高分子电解质是通过将PAN和PVdF聚合物作为起始原料以10：1-1：5的重量比混合而制得的，与有机溶剂，SiO 2和增塑剂混合; 加热所得混合物以形成固体聚合物电解质基质; 铸造矩阵。 有机溶剂的添加量为原料量的1-5倍。 SiO 2的量基于原料的重量为1-20重量％。 加热过程在110-180℃进行。 10分钟至2小时。 锂聚合物电池通过将固体聚合物电解质与增塑剂混合以制备组合的阳极和阴极并层压电解质以形成最终产品来制备。
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公开(公告)号：KR1020000002281A
公开(公告)日：2000-01-15
申请号：KR1019980022954
申请日：1998-06-18
Applicant: 한국과학기술연구원
IPC: H01M10/05
CPC classification number: H01M10/0525 , H01M4/1391 , H01M4/1393 , H01M10/0565 , H01M10/0585
Abstract: PURPOSE: A manufacturing method for a ternary system solid high molecule electrolyte is provided to easily manufacture a battery by using good adhesive strength and mechanical strength and to improve an electrode capacity and cycle life span characteristic. CONSTITUTION: A ternary system solid high molecule electrolyte is manufactured by; performing a high molecule blending after mixing a plasticizer and an organic solvent to a Poly Acrylonitrile(PAN) system/a Poly Vinyl Chloride(PVC) system/a Poly Vinylidene Fluoride(PVdF) system compound consist of 10¯90 wt% of PAN system compound, 1¯50 wt% of PVC system compound, and 1¯50 wt% of PVdF system compound; forming a matrix of the solid high molecule electrolyte; casting and drying for obtaining a solid high molecule film; and injecting a lithium chloride dissolved organic solvent electrolyte.
Abstract translation: 目的：提供三元系统固体高分子电解质的制造方法，通过使用良好的粘合强度和机械强度容易地制造电池，并提高电极容量和循环寿命特性。 构成：三元系固体高分子电解质由 在将聚合丙烯腈（PAN）系统/聚氯乙烯（PVC）系统/聚偏二氟乙烯（PVdF）系统化合物混合增塑剂和有机溶剂之后进行高分子共混，由10〜90wt％的PAN体系 化合物，1〜50重量％的PVC系化合物和1〜50重量％的PVdF系化合物; 形成固体高分子电解质的基质; 铸造和干燥以获得固体高分子膜; 并注入氯化锂溶解的有机溶剂电解质。
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公开(公告)号：KR1019990086308A
公开(公告)日：1999-12-15
申请号：KR1019980019243
申请日：1998-05-27
Applicant: 한국과학기술연구원
IPC: H01M4/96
Abstract: 본 발명은 카본 전극의 전리튬화 방법과 이를 이용한 리튬 이차전지 제조방법에 관한 것으로, 종래의 리튬 이차전지는 음극으로 사용된 카본 전극이 피막형성 반응의 비가역적 반응으로 리튬 이온의 소모를 가져와 전지의 용량을 감소시키는 역효과와 싸이클 수명이 저하하게 되는 문제점이 있는 바, 본 발명은 카본 전극과 리튬 금속을 저항으로 연결하거나 직접 접촉시킨 상태에서 온도와 전해질의 이온전도도를 변화시켜서 카본 전극이 리튬화 되는 속도와 양을 조절하고, 리튬화 후에 일정 온도와 시간 동안 안정화 시킴으로써 카본 전극 표면상에 안정한 피막을 형성하여 카본 전극의 가역성을 향상시키고, 리튬화된 카본 전극으로 리튬 이차전지를 제조하여, 카본 전극에서의 비가역용량에 의한 용량저하를 방지함으로써 용량증가와 충방전시 충� �전 효율 문제로 인하여 소모되는 리튬의 양을 보충해줌으로써 싸이클 수명을 향상시키도록 한 것이다.
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