Cathode for lithium secondary battery and production method for the same
    1.
    发明授权
    Cathode for lithium secondary battery and production method for the same 失效
    锂二次电池的阴极和生产方法相同

    公开(公告)号:US6103420A

    公开(公告)日:2000-08-15

    申请号:US841776

    申请日:1997-05-05

    摘要: The invention provides a cathode for a lithium secondary battery including lithiated nickel dioxide with a large discharge capacity as an active material and having a high density so that a larger amount of the active material can be charged in a battery container with a limited volume, a production method for the same and a lithium secondary battery utilizing the cathode. The cathode for a lithium secondary battery includes lithiated nickel dioxide as an active material, and the lithiated nickel dioxide is produced by firing a mixture of a lithium compound and a nickel compound at a temperature ranging between 350.degree. C. and 800.degree. C. The supernatant obtained by dispersing 5 g of the lithiated nickel dioxide in 100 cm.sup.3 of water in a glass vessel for 5 minutes and allowing the resultant solution to stand for 30 seconds has pH of 12.00 or less. The production method includes the steps of obtaining the lithiated nickel dioxide as above and treating or milling the lithiated nickel dioxide in an atmosphere including carbon dioxide.

    摘要翻译: 本发明提供了一种锂二次电池的阴极,其包括具有大放电容量的锂化二氧化镍作为活性材料并且具有高密度,使得可以将更多量的活性材料充入具有有限体积的电池容器中, 其制造方法和利用阴极的锂二次电池。 锂二次电池的阴极包括锂化二氧化镍作为活性物质,锂化二氧化镍通过在350℃〜800℃的温度范围内煅烧锂化合物和镍化合物的混合物来制造。 通过将5g锂化二氧化镍分散在玻璃容器中的100cm 3水中5分钟并使所得溶液静置30秒而获得的上清液的pH为12.00以下。 制备方法包括如下步骤:获得如上所述的锂化二氧化镍,并在包括二氧化碳的气氛中处理或研磨锂化二氧化镍。

    Cathode for lithium secondary battery
    2.
    发明授权
    Cathode for lithium secondary battery 失效
    锂二次电池阴极

    公开(公告)号:US06180282B2

    公开(公告)日:2001-01-30

    申请号:US09019048

    申请日:1998-02-05

    IPC分类号: H01M216

    摘要: A cathode for a lithium secondary battery wherein the surface of the cathode of which a composition containing a cathode active material, a conductive substance and a binder is supported on a current collector, is coated with at least one ion-permeable resin selected from resins having a temperature of deflection under load (measured at 18.6 kg/cm2 load according to JIS K 7207) not lower than 100 ° C., provide a lithium secondary battery with high energy density having improved safety.

    摘要翻译: 一种用于锂二次电池的阴极,其中阴极的表面包含阴极活性材料,导电物质和粘合剂的组合物负载在集电器上,涂覆有至少一种离子可渗透树脂,其选自具有 负载下的挠曲温度(根据JIS K 7207测量为18.6kg / cm2负载)不低于100℃,提供了具有高能量密度的锂二次电池,具有改进的安全性。

    Cathode for lithium secondary battery
    3.
    发明授权
    Cathode for lithium secondary battery 失效
    锂二次电池阴极

    公开(公告)号:US6153332A

    公开(公告)日:2000-11-28

    申请号:US25318

    申请日:1998-02-18

    摘要: A lithium secundary battery cathode composition comprising a cathode active material, a conductive substance and a binder, wherein the binder comprises a fluororesin and a polyolefin resin, and the amount of the fluororesin in the composition is 1 to 10% by weight and the amount of the polyolefin resin in the composition is 0.1 to 2% by weight.The cathode using the cathode composition of the present invention has an excellent binding property with a current collector, and the lithium secondary battery of the present invention has a high energy density and improved safety against an external heating, and the industrial value is very high.

    摘要翻译: 包含阴极活性材料,导电物质和粘合剂的锂锂电池阴极组合物,其中所述粘合剂包含氟树脂和聚烯烃树脂,并且所述组合物中氟树脂的量为1-10重量% 组合物中的聚烯烃树脂为0.1〜2重量%。 使用本发明的阴极组合物的阴极与集电体的结合性优异,本发明的锂二次电池具有高的能量密度和对外部加热提高的安全性,工业价值非常高。

    Lithium secondary battery having thermal switch
    8.
    发明授权
    Lithium secondary battery having thermal switch 失效
    锂二次电池具有热开关

    公开(公告)号:US6045939A

    公开(公告)日:2000-04-04

    申请号:US32116

    申请日:1998-02-27

    摘要: Provided is a lithium secondary battery comprising an electrode assembly which consists of a cathode, an anode and a separator laminated therebetween, and a battery case in which the electrode assembly is placed, said lithium secondary battery characterized by having a thermal switch which has a mechanism for electrically connecting the cathode and the anode at a portion other than an active material-contained layer in accordance with an increase in the battery temperature. The lithium secondary battery can prevent itself from being left in a charged condition after having an unusual trouble, and can operate the safety device even when its internal pressure decreases.

    摘要翻译: 提供一种锂二次电池,其包括由阴极,阳极和层压在其间的隔板组成的电极组件和其中放置电极组件的电池壳体,所述锂二次电池的特征在于具有热开关,所述热开关具有机构 用于根据电池温度的升高将阴极与阳极电极连接在活性物质含有层以外的部分。 锂二次电池在发生异常故障之后可以防止其处于充电状态,并且即使在其内部压力降低时也可以操作安全装置。

    Non-aqueous electrolyte lithium secondary battery
    9.
    发明授权
    Non-aqueous electrolyte lithium secondary battery 失效
    非水电解质锂二次电池

    公开(公告)号:US5849434A

    公开(公告)日:1998-12-15

    申请号:US685562

    申请日:1996-07-24

    IPC分类号: H01M4/58 H01M4/62 H01M4/64

    CPC分类号: H01M4/621 H01M4/587

    摘要: A non-aqueous electrolyte lithium secondary battery, comprising a cathode containing, as active material, a material that can be doped/undoped with lithium ions, an anode containing, as active material, a carbonaceous material that can be doped/undoped with lithium ions, a separator interposed between the cathode and anode and an electrolyte prepared by dissolving lithium salt in an organic solvent, wherein the anode contains a polymer having carbonate groups represented by the structural formula �I!: ##STR1## said polymer having a number average molecular weight of not less than 300 and not more than 200,000. The lithium secondary battery has cycle life and high-rate capacity which are improved without reducing low-temperature capacity.

    摘要翻译: 一种非水电解质锂二次电池,其包含含有作为活性材料的能够掺杂/未掺杂锂离子的材料的阴极,含有可掺杂/未掺杂锂离子的碳质材料作为活性材料的阳极 插入在阴极和阳极之间的隔膜和通过将锂盐溶解在有机溶剂中而制备的电解质,其中阳极含有具有由结构式[I]表示的碳酸酯基团的聚合物:所述聚合物具有 数均分子量不小于300,不大于20万。 锂二次电池具有循环寿命和高速率容量,在不降低低温容量的情况下得到改进。