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公开(公告)号：US5254396A
公开(公告)日：1993-10-19
申请号：US652955
申请日：1991-01-25
CPC分类号： C04B30/02 , B32B5/26 , C04B35/83 , C04B2111/00612 , Y10T442/3488 , Y10T442/3496 , Y10T442/494 , Y10T442/59 , Y10T442/666 , Y10T442/667 , Y10T442/669
摘要： An infusiblized, or infusiblized and slightly carbonized fiber of optically anisotropic pitch type is combined with a phenolic resin fiber to produce a high bulk density carbon fiber structure in the form of a laminate of mutually entangled carbon fiber sheets with improved handleability of fiber sheets and improved stability of a laminate structure formed through entanglement. A high flexural strength carbon-carbon composite material with a high volume fiber content is produced by impregnation with a precursor of carbon and subsequent carbonization of the carbon fiber structure of the kind as described above or a fiber laminate of mutually entangled sheets of the infusiblized, or infusiblized and slightly carbonized fiber of optically anisotropic pitch type blended with the phenolic resin fiber.
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公开(公告)号：US5246639A
公开(公告)日：1993-09-21
申请号：US711354
申请日：1991-06-04
申请人： Minoru Takabatake
发明人： Minoru Takabatake
摘要： A method for producing high density, high strength carbon-carbon composite material, is provided by using pitch-based carbonaceous fibers carbonized at a temperature lower than 2200.degree. C. or structures, including said carbonaceous fibers as a principal constituent, as a reinforcement material, impregnating said reinforcement material with a carbonaceous material such as pitch or the like and then heat treating said impregnated material.
摘要翻译： 通过在低于2200℃的温度下碳化的沥青类碳纤维或包含所述碳质纤维作为主要成分的结构，作为增强材料，提供高密度高强度碳 - 碳复合材料的制造方法 用碳质材料如沥青等浸渍所述增强材料，然后热处理所述浸渍的材料。
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33.发明授权
公开(公告)号：US5951959A
公开(公告)日：1999-09-14
申请号：US639974
申请日：1996-04-29
申请人： Yoshiyuki Nishimura
发明人： Yoshiyuki Nishimura
CPC分类号： H01M4/587 , D01F9/145 , H01M10/052
摘要： A mesophase pitch-based carbon fiber for use as a material for a negative electrode of a secondary battery, and a process for producing the same. The mesophase pitch-based carbon fiber comprises a columnar core part having a texture composed of a plurality of graphite layers extending along an axial direction and extending with minute flexures in a plane perpendicular to the axis and an outer-shell part surrounding the core part. The outer-shell part has a texture composed of a laminate of a plurality of graphite layers extending along an axial direction. The graphite layers are oriented in a plane perpendicular to the axis in a fashion such that the graphite layers extend along a circumferential direction with minute flexures while gradually receding from a center of the core part. In the carbon fiber, the graphite layers composing the outer-shell part have a laminate face forming a surface of the outer-shell part, channels permitting entry and exit of lithium ions being formed between graphite layers at the laminate face.
摘要翻译： 用作二次电池负极材料的中间相沥青基碳纤维及其制造方法。 中间相沥青基碳纤维包括柱状芯部，其具有由沿着轴向延伸的多个石墨层的结构，并且在垂直于该轴线的平面中以微小的弯曲延伸，以及围绕芯部的外壳部。 外壳部具有由沿着轴向延伸的多个石墨层的层叠体构成的纹理。 石墨层以垂直于轴线的平面定向，使得石墨层沿着圆周方向以微小的弯曲方向延伸，同时从芯部的中心逐渐退出。 在碳纤维中，构成外壳部的石墨层具有形成外壳部的表面的层叠面，允许在层叠面上形成于石墨层之间的锂离子进出的通道。
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34.发明授权Process for producing activated carbon fiber molding and activated carbon fiber molding 失效生产活性炭纤维成型和活性炭纤维成型工艺
公开(公告)号：US5888928A
公开(公告)日：1999-03-30
申请号：US808439
申请日：1997-02-28
IPC分类号： C01B31/08 , C04B35/622 , D01F9/145 , B01J20/02
CPC分类号： C04B35/62272 , D01F9/145
摘要： A process for producing an activated carbon fiber molding is disclosed which comprises spinning an isotropic pitch to thereby obtain pitch fibers, infusibilizing the pitch fibers to thereby obtain infusibilized fibers, heating the infusibilized fibers under a mechanical load to thereby obtain a molding and activating the molding. In this process, the infusibilized fibers and/or infusibilized fibers molding may be heated in an inert atmosphere so as to effect a light carbonization thereof and thereafter subjected to the subsequent step of the process. The pitch-based porous activated carbon fiber molding obtained by this process has a strikingly high bulk density and can sufficiently exhibit the specific properties of the activated carbon fiber, e.g. a large specific surface area, to thereby have a high adsorption efficiency.
摘要翻译： 公开了一种活性炭纤维成形体的制造方法，其特征在于，将各向同性沥青进行纺丝，得到沥青纤维，使沥青纤维熔融，得到不熔化的纤维，在机械载荷下加热不熔化的纤维，从而得到成型并活化成型 。 在该方法中，不熔化纤维和/或不熔化纤维成型可以在惰性气氛中加热，以便进行轻质碳化，然后进行该方法的后续步骤。 通过该方法获得的基于沥青的多孔活性炭纤维模制物具有非常高的堆积密度，并且可以充分显示活性炭纤维的具体性能，例如， 比表面积大，吸附效果高。
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35.发明授权
公开(公告)号：US5795678A
公开(公告)日：1998-08-18
申请号：US414195
申请日：1995-03-31
CPC分类号： H01M4/587
摘要： A negative electrode for use in a secondary battery which comprises milled graphite fibers derived from mesophase pitch each having circumferential, upper end and lower end faces, the milled graphite fibers each being composed of graphite layers having therebetween voids as inlets and outlets for lithium ions, all of the circumferential, upper end and lower end faces having openings of the voids between the graphite layers, which serve as inlets or outlets for lithium ions. This negative electrode for use in a secondary battery can be utilized to provide a lithium secondary battery of nonaqueous electrolyte which has large charge and discharge capacities and which permits setting the current density at charge or discharge high.
摘要翻译： 一种用于二次电池的负极，其包括衍生自具有圆周，上端和下端面的中间相沥青的磨碎石墨纤维，所述研磨石墨纤维各自由具有空隙的石墨层组成，用作锂离子的入口和出口， 所有圆周，上端和下端面都具有石墨层之间的空隙的开口，用作锂离子的入口或出口。 用于二次电池的负极可以用于提供具有大的充放电容量的非水电解质的锂二次电池，并且允许将充电或放电的电流密度设定得高。
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36.发明授权
公开(公告)号：US5792577A
公开(公告)日：1998-08-11
申请号：US755258
申请日：1996-11-22
CPC分类号： H01M4/587
摘要： A negative electrode material for use in lithium-ion secondary batteries, comprising milled pitch-based graphite fibers (A) obtained by graphitization at 2400.degree. C. or higher and milled pitch-based carbon fibers (B) obtained by carbonization at 550.degree. to 1300.degree. C. In this negative electrode material, it is preferred that both the milled pitch-based graphite fibers (A) and the milled pitch-based carbon fibers (B) have an average particle size of 10 to 30 .mu.m, that the ratio of milled pitch-based carbon and graphite fibers having a particle size of 5 .mu.m or less to all the milled pitch-based carbon and graphite fibers is not greater than 10% by weight and that the milled pitch-based graphite fibers (A) and the milled pitch-based carbon fibers (B) are blended at a weight ratio (A/B) of 95/5 to 40/60. A negative electrode which has a large capacity at the time of having been stabilized, exhibits a high charge and discharge efficiency at the initial stage and is excellent in charge and discharge cycle characteristics can be provided by the blending of milled pitch-based carbon fibers with milled pitch-based graphite fibers.
摘要翻译： 一种用于锂离子二次电池的负极材料，包括通过在2400℃以上的石墨化获得的磨碎沥青类石墨纤维（A）和通过在550℃下碳化获得的研磨沥青类碳纤维（B） 1300℃。在该负极材料中，优选研磨的沥青类石墨纤维（A）和碾磨沥青类碳纤维（B）的平均粒径为10〜30μm， 与所有研磨沥青类碳纤维和石墨纤维相比，粒径为5μm以下的研磨沥青类碳纤维和石墨纤维的比例为10重量％以下，研磨沥青类石墨纤维（A ）和研磨的沥青类碳纤维（B）以95/5至40/60的重量比（A / B）共混。 在稳定化时具有大容量的负极在初始阶段具有高的充放电效率，并且充放电循环特性优异，可以通过将研磨的沥青类碳纤维与 研磨的沥青基石墨纤维。
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公开(公告)号：US5686181A
公开(公告)日：1997-11-11
申请号：US502599
申请日：1995-07-14
申请人： Katsumi Takano , Yasushi Katsuta , Hideyuki Nakajima , Yoshikazu Nagata , Sadatoshi Ohno , Tadahiro Kakizawa , Toshio Yonezawa , Junichi Ida , Masaki Iwata
发明人： Katsumi Takano , Yasushi Katsuta , Hideyuki Nakajima , Yoshikazu Nagata , Sadatoshi Ohno , Tadahiro Kakizawa , Toshio Yonezawa , Junichi Ida , Masaki Iwata
CPC分类号： C04B20/1025 , C04B14/386 , C04B20/1037 , C04B28/02 , D01F11/14 , C04B2111/00155 , C04B2201/50 , Y10T428/2918 , Y10T428/292 , Y10T428/2938 , Y10T428/30 , Y10T428/31511
摘要： There are here disclosed carbon fibers for reinforcement of cement which are obtained by applying, onto the surfaces of carbon fibers, esters of oleic acid and aliphatic monovalent alcohols, esters of oleyl alcohol and monovalent fatty acids, polyoxyalkylene bisphenol ethers or polyether esters as sizing agents, and a cement composite material having a bending strength of 300 kgf/cm.sup.2 or more which contains cut carbon fibers having a fiber length of 10 to 50 mm at a mixing volume ratio of the cut carbon fibers to the cement matrix in the range of 1 to 5%. According to the present invention, there are provided the carbon fibers for reinforcement of cement which have excellent adhesive properties to the cement, good process passage properties through a direct spray gun and good bundling properties and which are suitable for a direct spray method, and the cement composite material using the carbon fibers and having high bending strength.
摘要翻译： 这里公开了用于增强水泥的碳纤维，其通过在碳纤维的表面上施加油酸和脂族一价醇的酯，油醇和一价脂肪酸的酯，聚氧化烯双酚醚或聚醚酯作为上浆剂而获得 以及弯曲强度为300kgf / cm 2以上的水泥复合材料，其中切割碳纤维与水泥基体的混合体积比为1，纤维长度为10〜50mm的切割碳纤维的范围为1 至5％。 根据本发明，提供了一种用于增强水泥的碳纤维，其对水泥具有优异的粘合性能，通过直接喷枪具有良好的工艺通道性能和良好的捆扎性能，并且适用于直接喷涂法，并且 使用碳纤维的水泥复合材料并具有高弯曲强度。
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公开(公告)号：US5556723A
公开(公告)日：1996-09-17
申请号：US306614
申请日：1994-09-15
CPC分类号： H01M10/05 , H01M4/0459 , H01M4/382 , H01M4/583 , H01M4/622 , H01M2004/027 , H01M2300/0025 , H01M4/0404 , H01M4/405 , H01M4/587 , H01M4/661
摘要： A negative electrode for use in a secondary battery is disclosed, comprising milled carbon fibers derived from mesophase pitch wherein the milled carbon fibers each has a fiber cut surface and a fiber axis intersecting with each other at cross angles, the smaller one thereof being at least 65.degree. on the average. This negative electrode does not suffer from property deterioration, irrespective of multiple repetitions of charge and discharge, from which a nonaqueous-electrolyte-loaded lithic secondary battery having excellent cycle characteristics can be fabricated.
摘要翻译： 公开了一种用于二次电池的负极，包括衍生自中间相沥青的磨碎碳纤维，其中研磨碳纤维各自具有纤维切割面和纤维轴线交叉的交叉角，其中较小的一个至少是 平均65度。 不管充放电多次重复，可以制造出具有优异的循环特性的非水电解质负载的锂二次电池，不会损害该负极的性能劣化。
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公开(公告)号：US5547363A
公开(公告)日：1996-08-20
申请号：US462544
申请日：1995-06-05
摘要： Disclosed herein is a spinning nozzle having one or more discharge openings and one or more introduction openings located upstream the discharge openings for producing pitch-based carbon fibers characterized by the presence of one or more spiral members in each introduction openings. According to the nozzle of the present invention, part of the pitch which is introduced to the introduction opening flows down along the spiral member while the flow of the pitch is affected by the spiral member. The remaining pitch flows into the discharge opening without being in contact with the spiral member, and then both are spun after being mixed through the discharge opening to prepare carbon fibers having a random structure. Especially, the carbon fibers of higher performances can be prepared when a spiral having uneven outer diameters is employed.
摘要翻译： 本文公开了一种纺丝喷嘴，其具有一个或多个排出口和位于排出口上游侧的一个或多个引入开口，用于生产沥青基碳纤维，其特征在于在每个导入开口中存在一个或多个螺旋构件。 根据本发明的喷嘴，引入到引入口的间距的一部分沿着螺旋构件向下流动，而螺距的流动受螺旋构件的影响。 剩余的沥青不与螺旋构件接触而流入排放口，然后在通过排出口混合后将其两者旋转以制备具有随机结构的碳纤维。 特别地，当采用具有不均匀外径的螺旋时，可以制备更高性能的碳纤维。
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公开(公告)号：US5536486A
公开(公告)日：1996-07-16
申请号：US418890
申请日：1995-04-07
CPC分类号： D01F9/145
摘要： The mesophase pitch based and melt blown discontinuous carbon fibers of a peculiar structure are provided. These fibers are characterized in that a large number of small domains, each domain has an average equivalent diameter of from 0.03 .mu.m to 1 .mu.m and has a nearly unidirectional orientation of folded carbon layers, assemble to form a mosaic structure on the cross-section of the said carbon fibers and that the folded carbon layers of each domain are oriented at an angle to the direction of the folded carbon layers of the neighboring domains on the boundary.
摘要翻译： 提供了具有特殊结构的中间相沥青基和熔喷不连续碳纤维。 这些纤维的特征在于，大量的小区域，每个结构域的平均当量直径为0.03μm至1μm，并且具有几乎单向取向的折叠碳层，组装以在横截面上形成镶嵌结构， 所述碳纤维的截面，并且每个区域的折叠碳层与边界上相邻区域的折叠碳层的方向成一角度定向。
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