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公开(公告)号：KR101984256B1
公开(公告)日：2019-07-23
申请号：KR1020170049895
申请日：2017-04-18
Applicant: 건국대학교 산학협력단 , 서울대학교산학협력단
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Patent Agency Ranking
公开(公告)号：KR1020140104247A
公开(公告)日：2014-08-28
申请号：KR1020130018203
申请日：2013-02-20
Applicant: 서울대학교산학협력단
CPC classification number: D01D5/0069 , B82Y40/00 , D01D5/34
Abstract: The present invention provides a core-cut nozzle for co-axial electrospining which includes: an inner nozzle which discharges a high molecular solution for a core; and an outer nozzle which encircles the inner nozzle, is arranged to have the same core axis with an axis of the inner nozzle, and discharges a high molecular solution for a sheath. The inner nozzle includes an inner nozzle main body and an inner nozzle spinning part, which is formed in the inner nozzle body. The inner nozzle spinning part is indented into the outer nozzle.
Abstract translation: 本发明提供一种用于同轴电喷的芯切割喷嘴，其包括：排出用于芯的高分子溶液的内喷嘴; 并且包围内部喷嘴的外部喷嘴被布置成具有与内部喷嘴的轴线相同的芯轴，并且排出用于护套的高分子溶液。 内部喷嘴包括形成在内部喷嘴体中的内部喷嘴主体和内部喷嘴旋转部。 内喷嘴纺纱部分凹入外喷嘴。
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公开(公告)号：KR1020130062218A
公开(公告)日：2013-06-12
申请号：KR1020120002008
申请日：2012-01-06
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A method for fabricating a multilayer carbon nanofiber is provided to ensure proper spinning property by blending and electrospinning a solution of acrylonitrile-containing copolymers with excellent affinity with polyacrylonitrile and high thermal stability, and to easily obtain the carbon nanofiber with multilayer cross section. CONSTITUTION: A method for fabricating a multilayer carbon nanofiber comprises: a step of preparing a first polymer solution which is prepared by dissolving polyacrylonitrile in a first solvent, a second polymer solution which is prepared by dissolving an acrylonitrile-containing copolymer in a second solvent, and a third polymer solution which is prepared by dissolving polyacrylonitrile in a third solvent; a step of supplying the first, second, and third polymer solutions to first, second, and third nozzles, respectively; a step of simultaneously electrospinning the solutions to obtain a conjugate fiber containing a core part-medium layer-shell layer; a step of performing thermal treatment of the conjugate fiber and stabilizing polyacrylonitrile of the conjugate fiber; and a step of carbonizing the stabilized polyacrylonitrile and plasticizing.
Abstract translation: 目的：提供一种制备多层碳纳米纤维的方法，通过将聚丙烯腈的亲和力高的热稳定性与丙烯腈共聚物的共混混合静电纺丝以确保合适的纺丝性能，容易得到具有多层横截面的碳纳米纤维。 构成：制造多层碳纳米纤维的方法包括：制备通过将聚丙烯腈溶解在第一溶剂中制备的第一聚合物溶液的步骤，通过将含丙烯腈的共聚物溶解在第二溶剂中制备的第二聚合物溶液， 和通过将聚丙烯腈溶解在第三溶剂中制备的第三聚合物溶液; 将第一，第二和第三聚合物溶液分别供应到第一，第二和第三喷嘴的步骤; 同时静电纺丝溶液以获得含有核心部分 - 中间层 - 壳层的复合纤维的步骤; 进行复合纤维的热处理和使复合纤维的聚丙烯腈稳定化的工序; 和将稳定的聚丙烯腈碳化并增塑的步骤。
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公开(公告)号：KR101261989B1
公开(公告)日：2013-05-08
申请号：KR1020110081921
申请日：2011-08-17
Applicant: 현대자동차주식회사 , 서울대학교산학협력단
IPC: H01M4/583 , H01M10/052 , C01B31/02 , H01M4/139
Abstract: 본발명은리튬전지용음극재료의제조방법에관한것으로, 보다구체적으로는아크릴로니트릴계공중합체, 금속또는금속산화물또는금속황화물, 용매를 혼합한용액또는용융상태의혼합물을일정한유속으로공급하여전압을가하여코어/쉘복합체가형성되고, 열처리하여탄화시키는과정을포함한다. 이에본 발명의제조과정은종래발명에비하여공정이간소하여나노음극재의대량생산에적합하며, 동일한모노머인아크릴로니트릴계공중합체를함유하는코어와쉘을채택하여이질감을최소화하여균일한방사성의극대화가가능하다. 또한, 열적안정성이뛰어나금속/금속산화물/금속황화물물질의부피변화에의한분쇄에도안정적인거동이유지가능하며, 전기방사변수(유량, 코어와쉘의농도)를조절하여튜브구명의크기와벽 두께의조절이가능하다.
Abstract translation: 目的：提供一种负极材料的制造方法，其适于大量生产纳米负极材料，并且通过具有包含丙烯腈基共聚物的芯和壳来最大化均匀辐射。 构成：二次电池用负极材料的制造方法包括以下步骤：将20〜45重量％的丙烯腈系共聚物作为芯材，10〜40重量％的丙烯腈共聚物，不同于 核心材料，1-35重量％的金属或金属氧化物或金属硫化物，和30-65重量％的熔融状态的溶液混合物; 通过向混合物施加电压形成核/壳复合材料的步骤; 以及通过在700-3000℃下热处理来对核/壳复合材料进行碳化和石墨化的步骤。
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公开(公告)号：KR1020130019761A
公开(公告)日：2013-02-27
申请号：KR1020110081921
申请日：2011-08-17
Applicant: 현대자동차주식회사 , 서울대학교산학협력단
IPC: H01M4/583 , H01M10/052 , C01B31/02 , H01M4/139
CPC classification number: H01M4/583 , H01M4/139 , H01M10/052 , H01M2004/027
Abstract: PURPOSE: A manufacturing method of a negative electrode material for is provided to be suitable for a mass production of a nano negative electrode material and to maximize uniform radiation by having a core and shell which contain an acrylonitrile-based copolymer. CONSTITUTION: A manufacturing method of a negative electrode material for secondary batteries comprises: a step of feeding 20-45 weight% of an acrylonitrile-based copolymer as a core material, 10-40 weight% of an acrylonitrile copolymer which is not the same as the core material, 1-35 weight% of a metal or metal oxide or metal sulfide, and 30-65 weight% of a solution mixture in a melt state; a step of forming a core/shell composite by applying voltage to the mixture; and a step of carbonizing and graphitizing the core/shell composite by heat-treating at 700-3000 °C.
Abstract translation: 目的：提供一种负极材料的制造方法，其适于大量生产纳米负极材料，并且通过具有包含丙烯腈基共聚物的芯和壳来最大化均匀辐射。 构成：二次电池用负极材料的制造方法包括以下步骤：将20〜45重量％的丙烯腈系共聚物作为芯材，10〜40重量％的丙烯腈共聚物，不同于 核心材料，1-35重量％的金属或金属氧化物或金属硫化物，和30-65重量％的熔融状态的溶液混合物; 通过向混合物施加电压形成核/壳复合材料的步骤; 以及通过在700-3000℃下热处理来对核/壳复合材料进行碳化和石墨化的步骤。
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公开(公告)号：KR101225093B1
公开(公告)日：2013-01-22
申请号：KR1020100094351
申请日：2010-09-29
Applicant: 서울대학교산학협력단
CPC classification number: A61F2/30756 , A61F2002/30001
Abstract: 본 발명은 관절 연골 재생용 지지 구조에 관한 것으로서, 미리 결정된 브레이딩 각도로 다수의 방향으로 서로 꼬여져서 다층 구조를 형성할 수 있는 다수의 편조사들(braiding yarns); 및 편조사들이 꼬여지는 방향에 직교하는 평면 상의 편조사들 사이에 개재된 적어도 하나 또는 그 이상의 제1 배향사들(axial yarns)을 구비한다.
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