Non-aqueous-electrolyte secondary battery
    7.
    发明授权
    Non-aqueous-electrolyte secondary battery 失效
    非水电解质二次电池

    公开(公告)号:US5759714A

    公开(公告)日:1998-06-02

    申请号:US783243

    申请日:1997-01-14

    摘要: There is disclosed a non-aqueous-electrolyte secondary battery comprising a positive electrode including a material capable of reversibly absorbing and releasing lithium, a negative electrode, a non-aqueous electrolyte containing a lithium salt, and a separator of the secondary battery the negative electrode comprises a material mainly comprising an amorphous chalcogen compound and/or an amorphous oxide including three or more atoms selected from the group consisting of Groups 1, 2, 13, 14, and 15 of the Periodic Table, and the said non-aqueous-electrolyte contains at least one N-containing organic compound. This non-aqueous electrolyte secondary battery has excellent charge and discharge characteristics, and its decrease of discharge capacity due to repeated charging/discharging is small.

    摘要翻译: 公开了一种非水电解质二次电池,其包括含有能够可逆地吸收和释放锂的材料的正极,负极,含有锂盐的非水电解质和二次电池的隔板,所述负极 包括主要包含无定形硫族化合物和/或包含选自周期表第1,2,3,13,14和15族中的三个或更多个原子的无定形氧化物的材料,并且所述非水电解质 含有至少一种含N的有机化合物。 这种非水电解质二次电池具有优异的充放电特性,并且由于重复的充电/放电引起的放电容量的减小很小。

    Magnetic recording medium
    10.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4729922A

    公开(公告)日:1988-03-08

    申请号:US929316

    申请日:1986-11-12

    IPC分类号: G11B5/702 G11B5/708 G11B5/70

    摘要: A magnetic recording medium comprises a non-magnetic support having provided thereon a magnetic layer containing magnetic particles dispersed in a binder. The magnetic layer contains acicular Cr.sub.2 O.sub.3 having an average length in the long axis of 1.0 .mu.m or less, an average length in the short axis of 0.1 .mu.m or less and an acicular ratio (long axis/short axis) of from 5/1 to 20/1 in an amount of from 1 to 20 wt % based on the total weight of the magnetic particles. The binder comprises at least one material selected from the group consisting of polyurethane having a glass transition temperature (Tg) of from 0.degree. to 95.degree. C. or containing a metal sulfonate group, or a vinyl chloride resin containing a metal sulfonate group.

    摘要翻译: 磁记录介质包括非磁性载体,其上设有包含分散在粘合剂中的磁性颗粒的磁性层。 磁性层含有长轴的平均长度为1.0μm以下,短轴的平均长度为0.1μm以下,针状比(长轴/短轴)为5/1的针状Cr 2 O 3 至20/1,其量为1至20重量%,基于磁性颗粒的总重量。 粘合剂包含选自玻璃化转变温度(Tg)为0〜95℃或含有金属磺酸盐基团的聚氨酯或含有金属磺酸盐基的氯乙烯树脂的至少一种材料。