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    Carbon fiber structures for use as lithium-ion secondary cell anode material
    2.
    发明公开
    Carbon fiber structures for use as lithium-ion secondary cell anode material 失效
    锂离子电池中的Fodersorten aus Kohlenstoff zur Verwendung als Anodenmaterial

    公开(公告)号：EP2267823A1

    公开(公告)日：2010-12-29

    申请号：EP10010346.4

    申请日：1997-06-27

    申请人： Sony Corporation

    发明人： Omaru, Atsuo ,  Nakajima, Naoyuki ,  Nagamine, Masayuki

    IPC分类号： H01M4/58 ,  D01F11/12

    CPC分类号： D01F11/12 ,  D01F9/15 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/022 ,  H01M2300/004

    摘要： Value of fractal dimension of cross section high order structure of random radial type carbon fiber can be utilized as material parameter for evaluating the cross sectional structure. Carbon fiber in which the value of the fractal dimension is caused to fall within the range from 1.1. to 1.8 and the crystallinity has been controlled such that it falls within reasonable range is used as anode material for non-aqueous electrolyte lithium ion secondary battery. Further, carbon fiber having cross section high order structure such that the central portion is radial type structure and the surface layer portion is random radial type structure is used as anode material for improved non-aqueous electrolyte Li-ion secondary battery.

    摘要翻译： 随机径向碳纤维横截面高阶结构分形维数值可作为材料参数，用于评估截面结构。 其中分形维数的值落在1.1范围内的碳纤维。 至1.8，并且结晶度被控制使得其落入合理范围内用作非水电解质锂离子二次电池的负极材料。 此外，作为用于改进的非水电解质Li-ion二次电池的负极材料，使用具有横截面高阶结构的碳纤维，使得中心部分是径向型结构，并且表面层部分是随机径向型结构。

    Pitch-based carbon or graphite fibre
    7.
    发明公开
    Pitch-based carbon or graphite fibre 失效
    基于沥青的碳或石墨纤维

    公开(公告)号：EP0297702A3

    公开(公告)日：1989-11-29

    申请号：EP88303679.0

    申请日：1988-04-22

    申请人： TOA NENRYO KOGYO KABUSHIKI KAISHA

    发明人： Komime, Kikuji ,  Kato, Hisao ,  Naito, Tsutomu ,  Hino, Takashi ,  Kuroda, Hiroyuki

    IPC分类号： D01F9/145

    CPC分类号： D01F9/155 ,  D01F9/15

    摘要： A carbonaceous pitch can be produced by thermal cracking and polycondensation to have a softening point of 230-320°C; preferably it is fractionated to give an optically anisotropic pitch, which is spun from nozzles in an inert gas atmosphere to form fibres which are taken up on a bobbin. A spinning treatment oil is applied, the fiber bundles are doubled, e.g. by rewinding, a non-aqueous heat-resistant treatment oil is applied (e.g. an alkyl phenyl polysiloxane of viscosity 10-­1000 cst or dimethyl polysiloxane of viscosity 5-1000 cst, containing an antioxidant) in amount of 0.01-­10 wt%, the bundles are passed continuously into an oxygen-rich gas of 30% or more O₂ content in a furnace at not above 350° (300-330°C); the atmosphere being preferably continuously stirred and exchanged, so as to infusibilize the fibres and finally the fibres are heated in inert gas to 500-1000°C to precarbonise and then to 1000-2000°C to form carbon fibres or 2000-­3000° to form graphite fibres. The carbon or graphite fibres formed have a good appearance, high elasticity and strength and little fluff, and the process is rapid and continuous.

    Process for producing chopped strand of carbon fiber
    8.
    发明公开
    Process for producing chopped strand of carbon fiber 失效
    生产碳纤维切割条的方法

    公开(公告)号：EP0226819A3

    公开(公告)日：1989-11-29

    申请号：EP86115993.7

    申请日：1986-11-18

    申请人： NITTO BOSEKI CO., LTD. ,  KAWASAKI STEEL CORPORATION

    发明人： Kitamura, Tadanori ,  Shono, Hiroaki ,  Kodama, Atsuki

    IPC分类号： D01F9/14

    CPC分类号： D01F9/155 ,  D01F9/15

    摘要： The present invention relates to a process for producing a carbon fiber chopped strand which comprises preparing a pitch fiber from petroleum pitch or coal pitch, cutting the pitch fiber to a predetermined desired length, heating the cut pitch fiber at a high density accumulation in the atmosphere of an oxidative gas to infusibilize the cut pitch fiber, and then carbonizing and graphitizing the infusibilized fiber in an inert atmosphere. Accord­ing to the process of the invention, no fuzz are formed on the fiber and no uneven infusibilization takes place. Further, the pitch fiber chopped strand accumulation has a high bulk density and relieve exothermic excursion naturally, and therefore neither combustion nor sticking takes place even in an oxidative atmosphere. Accordingly, the production speed can be enhanced and the cost can be lowered to a great extent.

    Method of processing carbon fiber precursor from pitchy materials
    9.
    发明公开
    Method of processing carbon fiber precursor from pitchy materials 失效
    Pechartige Materialien alsVorläuferfürKohlenstoffasern。

    公开(公告)号：EP0331379A2

    公开(公告)日：1989-09-06

    申请号：EP89301893.7

    申请日：1989-02-24

    申请人： Takemoto Yushi Kabushiki Kaisha

    发明人： Ogiso, Osamu ,  Uchida, Hideto

    IPC分类号： D01F9/145

    CPC分类号： D01F9/155 ,  D01F9/15 ,  Y10T428/2933 ,  Y10T428/2962 ,  Y10T428/30

    摘要： Carbon fiber precursor from pitchy materials are processed by applying thereonto an aqueous emulsion containing a single silicone oil or a mixture of silicone oils selected from polydimethyl siloxane, phenyl modified polydimethyl siloxane and aminoalkyl modified polydimethyl siloxane and having kinetic viscosity at 25°C of 100 centistokes or less, an alkanolamine salt of aliphatic monocarboxylic acid with 8-18 carbon atoms, and one or more non-ionic surfactants selected from polyoxyethylene alkylphenylethers polyoxyethylene alkylates polyoxyethylene alkylaminoethers, and aliphatic monocarboxylic alkanolamides such that 0.1-­5 wt% by solid deposit on fiber of this aqueous emulsion apply to the pitch fibers during any of the processes from the spinning and to the oxidizing.

    摘要翻译： 沥青材料的碳纤维前体通过在其上涂覆含有单一硅油或选自聚二甲基硅氧烷，苯基改性聚二甲基硅氧烷和氨基烷基改性聚二甲基硅氧烷的硅油混合物的水性乳液并在25℃下的动力粘度为100厘沲 具有8-18个碳原子的脂族一元羧酸的链烷醇胺盐和一种或多种非离子表面活性剂，其选自聚氧乙烯烷基苯基醚聚氧乙烯烷基化物聚氧乙烯烷基氨基醚和脂族单羧酸烷醇酰胺，使得0.1-5wt％的固体沉积在纤维上 的这种水性乳液在从纺丝和氧化的任何过程中都适用于沥青纤维。