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59 条记录 (耗时 0.014 秒)

    METHOD OF MELTING AND REFINING METALS, AND AN APPARATUS FOR COOLING ELECTRODES USED THEREFOR
    4.
    发明授权
    METHOD OF MELTING AND REFINING METALS, AND AN APPARATUS FOR COOLING ELECTRODES USED THEREFOR 失效
    熔融和精炼金属的方法，以及用于冷却其使用的电极的装置

    公开(公告)号：EP0309583B1

    公开(公告)日：1993-08-18

    申请号：EP87904111.9

    申请日：1987-06-24

    申请人： NIPPON CARBON CO., LTD.

    发明人： NAKAMOTO, Yakka ,  MORI, Toshihiko

    IPC分类号： H05B7/12

    CPC分类号： H05B7/12

    摘要： Referring to Figs. 2, 3 and 4, reference numeral (10) refers to a graphite electrode among three graphite electrodes that correspond to a three-phase AC power source. A graphite electrode is connected to each of the graphite electrodes (10) via a nipple. An electric current is supplied to these electrodes in an arc furnace of melt and refine metals. The invention deals with a method of refining and melting metals and a cooling apparatus used therefor, wherein, during the refining, a cooling liquid (11) which substantially consists of water is continuously sprayed onto the outer periphery (10a) of at least one graphite electrode (10) among the three graphite electrodes or, more particularly, onto the outer periphery (10a) of the graphite electrode (10) between an electrode holder and a furnace cover. In this case, the cooling liquid (11) is sprayed not in parallel with a horizontal level L-L, but upward or downward at an angle of 10° to 35° with respect to the level L-L to cool the electrode.

    Super heat-resistant silicon carbide fibers and process for producing the same
    5.
    发明公开
    Super heat-resistant silicon carbide fibers and process for producing the same 失效
    HitzebeständigeSiliziumkarbidfasern und Verfahren zu deren Herstellung。

    公开(公告)号：EP0544038A1

    公开(公告)日：1993-06-02

    申请号：EP91310887.4

    申请日：1991-11-26

    申请人： NIPPON CARBON CO., LTD.

    发明人： Seguchi, Tadao Takasaki Radiation Chem. Res. Est. ,  Kasai, Noboru Takasaki Radiation Chem. Res. Establ ,  Okamura, Kiyohito ,  Ichikawa, Hiroshi ,  Takeda, Michio ,  Nishii, Masanobu Takasaki Radiation Chem. Res. Est

    IPC分类号： C04B35/56

    CPC分类号： C04B35/571

    摘要： A super heat-resistant silicon carbide fiber has an oxygen content of less than 1.0% by weight. In a process for producing the super heat-resistant silicon carbide fiber, a precursor fiber prepared by spinning a polycarbosilane having an oxygen content of less than 0.8% by weight is irradiated with a radiation in an oxygen-free atmosphere or in vacuo to make the precursor fiber infusible. The infusibilized fiber is fired in an oxygen-free atmosphere or in vacuo at a temperature of from 1000 to 2200°C without exposure to an oxidizing atmosphere; or stabilized in the same atmosphere at a temperature of from 300 to 600°C without exposure to an oxidizing atmosphere and fired in an oxygen-free atmosphere or in vacuo at a temperature of from 1000 to 2200°C.

    摘要翻译： 超耐热碳化硅纤维的氧含量小于1.0重量％。 在制造超耐热碳化硅纤维的方法中，通过纺丝具有小于0.8重量％的氧含量的聚碳硅烷制备的前体纤维，在无氧气氛或真空中用辐射照射， 前体纤维不可渗透。 不熔化的纤维在无氧气氛中或真空中在1000-2200℃的温度下烧制而不暴露于氧化气氛; 或在相同气氛中在300-600℃的温度下稳定，而不暴露于氧化气氛，并在无氧气氛中或在真空中在1000-2200℃的温度下烧制。

    NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION CAPACITOR
    9.
    发明公开
    NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION CAPACITOR 审中-公开
    负离子激光器

    公开(公告)号：EP3076417A1

    公开(公告)日：2016-10-05

    申请号：EP14866727.2

    申请日：2014-12-01

    申请人： Nippon Carbon Co., Ltd.

    发明人： HONGAWA, Ken-ichi ,  YAMASHITA, Kazuaki

    IPC分类号： H01G11/86 ,  C01B31/02 ,  H01G11/06 ,  H01G11/42 ,  H01M4/36 ,  H01M4/587

    CPC分类号： H01G11/50 ,  H01G11/06 ,  H01G11/24 ,  H01G11/34 ,  H01G11/38 ,  H01G11/42 ,  H01G11/86 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/587 ,  H01M4/96 ,  H01M10/0525 ,  H01M12/005 ,  Y02E60/13 ,  Y02T10/7022

    摘要： This invention provides a negative electrode active material for lithium ion capacitor, which reduces the thickness of a negative-electrode active material layer while maintaining the conventional level of energy density.
    The negative-electrode active material for a lithium ion capacitor is a composite carbon material manufactured by kneading a carbon black having an average particle diameter of 12 to 300 nm measured by the electron microscopy method with a carbon precursor such as pitch, the resulting mixture is baked or graphitized baking between 800°C to 3200°C, and then pulverized such that the average particle diameter (D 50 ) thereof is 1 to 20 µm and the BET specific surface area is between 100- 350 m 2 /g. An initial charging capacity is at least 700 mAh/g, and the cell volume is reduced as the thickness of the negative electrode active material layer becomes thinner than the conventional one.

    摘要翻译： 本发明提供一种用于锂离子电容器的负极活性物质，其在保持常规能量密度的同时降低负极活性物质层的厚度。 锂离子电容器用负极活性物质是将通过电子显微镜法测定的平均粒径为12〜300nm的炭黑与沥青等碳前体捏合而成的复合碳材料，得到的混合物为 焙烧或石墨化烘烤，然后粉碎成平均粒径（D 50）为1〜20μm，BET比表面积为100〜350m 2 / g。 初始充电容量至少为700mAh / g，随着负极活性物质层的厚度比以往更薄，电池体积减小。

    NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION RECHARGEABLE BATTERY, AND NEGATIVE ELECTRODE
    10.
    发明授权
    NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION RECHARGEABLE BATTERY, AND NEGATIVE ELECTRODE 有权
    NEGATIVELEKTRODEN-AKTIVMATERIALFÜREINE WIEDERAUFLADBARE LITHIUMONENBATTERIE UND NEGATIVELEKTRODE

    公开(公告)号：EP2037515B1

    公开(公告)日：2011-07-13

    申请号：EP07737215.9

    申请日：2007-05-25

    申请人： Nippon Carbon Co., Ltd.

    发明人： KAWAI, Takanobu ,  HONGAWA, Kenichi ,  MATSUMOTO, Hayato

    IPC分类号： H01M4/587 ,  H01M4/133 ,  C01B31/04

    CPC分类号： H01M4/587 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/043 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/621 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

    摘要： This invention provides a negative electrode active material for a lithium ion rechargeable battery, at low cost, which has a high electrode density, has excellent permeability to an electrolysis solution, has not significant loss in capacity by charging and discharging, and has good cycling properties. A binder is added to a negative electrode active material formed of a mixture of three graphite powders different from each other in hardness and shape, and the mixture is coated onto a metallic current collector, and the coated current collector is dried and pressed to prepare a negative electrode for a lithium ion rechargeable battery having an electrode density of not less than 1.7 g/cm3. The negative electrode active material comprises a graphite powder A (D = 0.04 to 0.06 P), a graphite powder B (D = 0.04 to 0.06 P), and a graphite powder C (D = 0.01 to 0.03 P), wherein P represents a press pressure, kN; and D represents an electrode density, g/cm3, the mixing weight ratio being A = 30 to 60%, B = 20 to 50%, and C = 5 to 30%. The negative electrode active material is advantageous in that voids which have been interconnected satisfactorily for permeation of the electrolysis solution into the electrode, can be ensured over the whole electrode, and the battery performance is not deteriorated even when expansion and shrinkage of particles are repeated upon storage and release of Li ions.

    摘要翻译： 提供了一种用于锂离子可再充电电池的负极活性物质，其电极密度高，电解液的渗透性优异，由于充电/放电而导致的容量损失少，循环性能优异。 此外，提供了一种用于锂离子可再充电电池的负极，其中将作为彼此不同硬度和形状的三种石墨粉末的混合物的负极活性材料与其中添加有粘合剂的涂层涂覆在 金属集电体进行干燥和压制，从而使电极密度不低于1.7g / cm 3。 在压力P（kN）与电极密度D（g / cm 3）的关系方面，负极活性物质由石墨粉末A（D = 0.04〜0.06P），石墨粉末B（D = 0.04 至0.06P），石墨粉末C（D = 0.01〜0.03P），混合重量比分别为A = 30〜60％，B = 20〜50％，C = 5〜30％ 发现足以使电解质渗透到电极中的连续空隙被固定在整个电极中，即使在伴随存储·释放Li离子的颗粒的反复膨胀和收缩之后，仍未观察到电池性能的劣化。