Process for producing magnetizable particles
    5.
    发明授权
    Process for producing magnetizable particles 失效
    生产可磁化颗粒的方法

    公开(公告)号:US4457955A

    公开(公告)日:1984-07-03

    申请号:US454325

    申请日:1982-12-29

    摘要: A process for producing cobalt-modified iron oxide particles, which comprises the steps of:(1) adding to magnetic iron oxide particles(a) a cobalt compound,(b) an iron component which is either (b.sub.1) a ferric compound at an atomic ratio to the cobalt compound in the range of 0.68 to 2 or (b.sub.2) a combination of a ferrous compound and a ferric compound, and(c) an alkali at a concentration enough to cause the cobalt and iron to precipitate as hydroxides; and(2) heating the mixture at a temperature of at least 50.degree. C. and not higher than the reflux temperature thereof in a non-oxidizing atmosphere.

    摘要翻译: 一种生产钴改性氧化铁颗粒的方法,包括以下步骤:(1)向磁性氧化铁颗粒(a)中加入钴化合物,(b)铁组分,其中(b1) 与钴化合物的原子比在0.68〜2的范围内,或(b2)亚铁化合物与三价铁化合物的组合,(c)以足以引起钴和铁作为氢氧化物析出的浓度的碱; 和(2)在非氧化性气氛中,在至少50℃,不高于其回流温度的温度下加热混合物。

    Active materials for batteries
    7.
    发明授权
    Active materials for batteries 失效
    电池用活性物质

    公开(公告)号:US4684591A

    公开(公告)日:1987-08-04

    申请号:US793465

    申请日:1985-10-29

    IPC分类号: C01B31/00 H01M4/58 H01M4/583

    摘要: An active material for batteries or cells having improved discharge characteristics and comprising a fluorinated graphite produced by fluorination of graphite with fluorine, the fluorinated graphite containing substantially no unreacted graphite and having a degree of fluorination such that the weight or fluorine content thereof is increased by a further fluorination under conditions equal to or severer than the fluorination conditions adopted to the production of the fluorinated graphite. The use of artificial graphite having a Franklin's P-value of at least 0.45 as a starting material is effective for further improving the discharge voltage and the capacity.

    摘要翻译: 一种用于具有改善的放电特性的电池或电池的活性材料,并且包括通过用氟氟化石墨制备的氟化石墨,所述氟化石墨基本上不含未反应的石墨并具有氟化程度,使得其重量或含氟量增加了 在与生产氟化石墨所采用的氟化条件相同或更严格的条件下进一步氟化。 使用富兰克林P值至少为0.45的人造石墨作为原料对于进一步提高放电电压和容量是有效的。

    Lithium-fluorinated graphite cell
    9.
    发明授权
    Lithium-fluorinated graphite cell 失效
    锂氟化石墨电池

    公开(公告)号:US4770959A

    公开(公告)日:1988-09-13

    申请号:US943849

    申请日:1986-12-19

    IPC分类号: H01M6/16

    CPC分类号: H01M6/16

    摘要: Organic electrolyte cells comprising a lithium anode and a fluorinated graphite cathode, and using a solution of lithium hexafluorophosphate (LiPF.sub.6) in an organic solvent as the electrolyte, whereby the discharge capacity is remarkably improved.

    摘要翻译: 包含锂阳极和氟化石墨阴极的有机电解质电池,并且在有机溶剂中使用六氟磷酸锂(LiPF 6)的溶液作为电解质,从而显着提高了放电容量。