Electrical device made of partially pryolyzed polymer
    1.
    发明授权
    Electrical device made of partially pryolyzed polymer 失效
    由部分溶胶聚合物制成的电器件

    公开(公告)号:US4642664A

    公开(公告)日:1987-02-10

    申请号:US487401

    申请日:1983-04-21

    IPC分类号: H01L45/00

    CPC分类号: H01L45/00

    摘要: An electrical device is made by partially pyrolyzing polymer material by heating the material to between 500.degree. C. and 800.degree. C. Electrodes are applied to the material at two different locations to define an electrically active element therebetween. Devices made according to the teachings of the disclosure exhibit negative resistance in a portion of their voltage current domain and function as bi-directional electrical switches.

    摘要翻译: 通过将材料加热至500℃至800℃,通过部分热解聚合物材料制成电子器件。电极在两个不同位置施加到材料上以在其间限定电活性元件。 根据本公开的教导制造的器件在其电压电流域的一部分中呈现负电阻并且用作双向电开关。

    Method of making an electrical device made of partially pyrolyzed polymer
    4.
    发明授权
    Method of making an electrical device made of partially pyrolyzed polymer 失效
    制造由部分热解的聚合物制成的电气装置的方法

    公开(公告)号:US4856179A

    公开(公告)日:1989-08-15

    申请号:US141077

    申请日:1988-01-05

    IPC分类号: H01L45/00

    摘要: An electrical device is made by partially pyrolyzing polymer material by heating the material to between 500.degree. C. and 800.degree. C. Electrodes are applied to the material at two different locations to define an electrically active element therebetween. The device exhibits negative resistance in a portion of its voltage current domain and function as bi-directional electrical switches.This application is a continuation of application Ser. No. 859,709, filed May 5, 1986, now abandoned, which is a divisional application of application ser. No. 487,401, filed Apr. 21, 1983, now U.S. Pat. No. 4,642,644.

    摘要翻译: 通过将材料加热至500℃至800℃,通过部分热解聚合物材料制成电子器件。电极在两个不同位置施加到材料上以在其间限定电活性元件。 该器件在其电压电流域的一部分中呈现负电阻并且用作双向电开关。 这个应用程序是应用程序的延续。 1986年5月5日提交的第859,709号现在已经放弃,这是一个应用程序的分案申请。 1983年4月21日提交的美国专利第487,401号。 第4,642,644号。

    Electric storage battery and process for the manufacture thereof
    5.
    发明授权
    Electric storage battery and process for the manufacture thereof 失效
    蓄电池及其制造方法

    公开(公告)号:US4707423A

    公开(公告)日:1987-11-17

    申请号:US387075

    申请日:1982-06-10

    IPC分类号: H01M4/58 H01M4/587 H01M10/36

    CPC分类号: H01M10/36 H01M4/587

    摘要: The present invention provides a rechargeable electric storage battery comprising an electrolyte containing charge-transporting positive ions and negative ions capable of intercalating into graphitic carbon, and oppositely charged graphitic carbon electrodes which are simultaneously intercalated by the positive ions and negative ions present in such electrolyte. The graphitic carbon electrodes may be provided in a variety of physical configurations. Such battery is believed to provide reasonably high power density and energy density characteristics, fabrication simplicity, a relatively long lifetime, and potential economic advantages.

    摘要翻译: 本发明提供一种可再充电蓄电池,其包含含有电荷输送正离子和能够嵌入石墨碳的负离子的电解质,以及由电解质中存在的正离子和负离子同时插入的带电荷的石墨碳电极。 石墨碳电极可以以各种物理构型提供。 据信这样的电池提供相当高的功率密度和能量密度特性,制造简单性,相对长的寿命和潜在的经济优点。

    Process for the intercalation of graphitic carbon employing fully
halogenated hydrocarbons
    6.
    发明授权
    Process for the intercalation of graphitic carbon employing fully halogenated hydrocarbons 失效
    使用完全卤代烃的石墨碳插层方法

    公开(公告)号:US4634546A

    公开(公告)日:1987-01-06

    申请号:US756528

    申请日:1985-07-19

    IPC分类号: C01B31/00 H01B1/04

    CPC分类号: H01B1/04 C01B31/0415

    摘要: An improved procedure is provided for increasing the electrical conductivity of graphite via intercalation. It has been found that fully halogenated hydrocarbons (as described) have the ability to substantially aid the intercalation of graphite by previously known intercalant mixtures of (a) fluorosulfonic acid, chlorosulfonic acid, or mixtures thereof, and (b) a boron trihalide, a tetrahalide of a Group IV element, a pentahalide of a Group V element, or mixtures thereof. The presence of a fully halogenated hydrocarbon, such as carbon tetrachloride, during the graphite intercalation reaction has been found to expedite the rate at which intercalation takes place and possibly enables the achievement of a greater electrical conductivity than would have otherwise been obtained. In a preferred embodiment the graphite carbon is present within a carbonaceous fibrous material at the time of its intercalation and the resulting product is substantially electrically oriented along the axis of the fiber.

    摘要翻译: 提供了一种通过插层提高石墨电导率的改进方法。 已经发现,完全卤化的烃(如所述)具有通过先前已知的(a)氟磺酸,氯磺酸或其混合物的嵌入剂混合物和(b)三卤化硼, IV族元素的四卤化物,V族元素的五卤化物或其混合物。 已经发现在石墨插入反应期间存在完全卤化的烃如四氯化碳可以加速发生插入的速率,并且可能使得能够实现比原来获得的更大的电导率。 在优选的实施方案中,石墨碳在其插入时存在于碳质纤维材料内,并且所得产物沿着纤维的轴线基本上电定向。

    Process for the intercalation of graphitic carbon employing sulfur
trioxide
    7.
    发明授权
    Process for the intercalation of graphitic carbon employing sulfur trioxide 失效
    使用三氧化硫插入石墨碳的方法

    公开(公告)号:US4632775A

    公开(公告)日:1986-12-30

    申请号:US737769

    申请日:1985-05-28

    IPC分类号: C01B31/00 H01B1/04

    CPC分类号: H01B1/04 C01B31/0415

    摘要: An improved procedure is provided for increasing the electrical conductivity of graphite via intercalation. It has been found that sulfur trioxide has the ability to substantially aid the intercalation of graphite by previously known intercalants such as (a) fluorosulfonic acid, chlorosulfonic acid, or mixtures thereof, (b) a boron trihalide, a tetrahalide of a Group IV element, a pentahalide of a Group V element, or mixtures thereof, and (c) mixtures of (a) and (b). Such presence of sulfur trioxide during the graphite intercalation reaction has been found to expedite the rate at which intercalation takes place and possibly enables the achievement of a greater electrical conductivity than would have otherwise been obtained. In a preferred embodiment the graphitic carbon is present within a carbonaceous fibrous material at the time of its intercalation and the resulting product is substantially electrically oriented along the axis of the fiber.

    摘要翻译: 提供了一种通过插层提高石墨电导率的改进方法。 已经发现,三氧化硫具有通过先前已知的插入剂例如(a)氟磺酸,氯磺酸或其混合物,(b)三卤化硼,IV族元素的四卤化物,基本上有助于石墨插入的能力 ,V族元素的五卤化物或其混合物,和(c)(a)和(b)的混合物。 已经发现在石墨插入反应期间这种三氧化硫的存在加速了发生插层的速率,并且可能实现比原来获得的更大的电导率。 在优选的实施方案中,石墨碳在其插入时存在于碳质纤维材料内,并且所得产物沿着纤维的轴线基本上电取向。

    Fuses having suppressed voltage transients
    8.
    发明授权
    Fuses having suppressed voltage transients 失效
    保险丝抑制电压瞬变

    公开(公告)号:US4873604A

    公开(公告)日:1989-10-10

    申请号:US750216

    申请日:1985-07-01

    IPC分类号: G01K7/22 H01L45/00

    摘要: A shunt device and a method are described for protecting electrical equipment when a fuse blows. The shunt device establishes a by-pass across the fuse for permitting a limited amount of current to begin to flow at a lower voltage than the fuse blowing voltage and before the fuse blows, thereby serving as a transitory relief valve for a portion of the current while minimizing or even substantially eliminating the inductive spike when the fuse blows. The shunt device is made of at least one pyrolyzed polyacrylonitrile (PPP) fiber having a selected switching voltage so that the PPP fiber switches to a low resistance state while the fuse is blowing. When the fuse and PPP characteristics are properly matched, the rate of change of the current with time is lowered, thus selectively decreasing the size of the voltage transients which occur after the fuse blows.

    摘要翻译: 描述了分流装置和方法,用于在保险丝熔断时保护电气设备。 分流装置在保险丝上建立旁路,以允许有限量的电流以比熔丝熔断电压低的电压开始流动,并且在保险丝熔断之前,从而用作电流的一部分的临时溢流阀 同时在保险丝熔断时最小化甚至基本消除电感尖峰。 分流装置由至少一种具有所选择的开关电压的热解的聚丙烯腈(PPP)纤维制成,使得在保险丝熔断时,PPP光纤切换到低电阻状态。 当保险丝和PPP特性正确匹配时,电流随时间的变化率降低,从而选择性地减小保险丝熔断后发生的电压瞬变的大小。