LITHIUM SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY
    1.
    发明申请
    LITHIUM SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY 审中-公开
    锂二次电池正极和锂二次电池

    公开(公告)号:US20110256437A1

    公开(公告)日:2011-10-20

    申请号:US13042081

    申请日:2011-03-07

    IPC分类号: H01M4/62 H01M10/36

    摘要: A lithium secondary battery positive electrode of the present invention includes a positive electrode material mixture layer containing a positive electrode active material, a conductivity enhancing agent and a binder on one or both sides of a current collector, and the positive electrode active material contains a lithium-containing composite oxide represented by the general compositional formula: Li1+xMO2, where x is in a range of −0.15≦x≦0.15 and M represents an element group of three or more elements including at least Ni, Co and Mn. The binder contains a tetrafluoroethylene-vinylidene fluoride copolymer (P(TFE-VDF)) and polyvinylidene fluoride (PVDF). The total content of the binder in the positive electrode material mixture layer is 1 to 4 mass %, and the ratio of the P(TFE-VDF) is 10 mass % or more, when the total of the P(TFE-VDF) and the PVDF is taken as 100 mass %.

    摘要翻译: 本发明的锂二次电池正极包括在集电体的一面或两面上含有正极活性物质,导电性增强剂和粘合剂的正极合剂层,正极活性物质含有锂 由以下通式构成的化合物Li1 + xMO2表示,其中x在-0.15< lEE的范围内; x< lE; 0.15,M表示至少包含Ni,Co和Mn的3种以上元素的元素组。 粘合剂含有四氟乙烯 - 偏二氟乙烯共聚物(P(TFE-VDF))和聚偏二氟乙烯(PVDF)。 正极合剂层中的粘合剂的总含量为1〜4质量%,P(TFE-VDF)的比例为10质量%以上时,P(TFE-VDF)和 将PVDF作为100质量%。

    LITHIUM SECONDARY-BATTERY PACK, ELECTRONIC DEVICE USING SAME, CHARGING SYSTEM, AND CHARGING METHOD
    4.
    发明申请
    LITHIUM SECONDARY-BATTERY PACK, ELECTRONIC DEVICE USING SAME, CHARGING SYSTEM, AND CHARGING METHOD 审中-公开
    锂二次电池组,使用相同的电子设备,充电系统和充电方法

    公开(公告)号:US20140227562A1

    公开(公告)日:2014-08-14

    申请号:US14241663

    申请日:2012-09-03

    IPC分类号: H02J7/00 H01M2/34

    摘要: A lithium secondary-battery pack of the present invention includes: a lithium secondary battery including an electrode body and a non-aqueous electrolyte, the electrode body including a positive electrode and a negative electrode facing each other, and a separator interposed therebetween; a PTC (Positive Temperature Coefficient) element; and a protection circuit including a field-effect transistor, wherein the negative electrode includes a negative electrode material mixture layer containing a Si-containing material as a negative electrode active material, and, where Z represents an impedance (Ω) of the lithium secondary-battery pack and Q represents a capacity (Ah) of the lithium secondary-battery pack, an impedance capacity index represented by Z/Q is 0.055 Ω/Ah or less.

    摘要翻译: 本发明的锂二次电池组包括:锂二次电池,其包括电极体和非水电解质,所述电极体包括正极和负极彼此面对的隔膜; PTC(正温度系数)元件; 以及包括场效应晶体管的保护电路,其中所述负极包括含有含Si材料作为负极活性物质的负极材料混合物层,并且其中Z表示所述锂二次电池的阻抗(& OHgr) 电池组,Q表示锂二次电池组的容量(Ah),Z / Q表示的阻抗容量指数为0.055&OHgr / Ah以下。

    Lithium ion polymer secondary cell
    5.
    发明授权
    Lithium ion polymer secondary cell 有权
    锂离子聚合物二次电池

    公开(公告)号:US07235332B2

    公开(公告)日:2007-06-26

    申请号:US10465932

    申请日:2001-12-21

    IPC分类号: H01M10/40

    摘要: A porous element containing a fluoropolymer comprising vinylidene fluoride as a main unit and having a density of 0.55–1.30 g/cm3 and a Gurley value of not more than 150 sec/100 cc is used as a polymer substrate of a solid electrolyte to be placed between a positive electrode and a negative electrode. As a result, the solid electrolyte layer shows fine ion conductivity and an ion polymer secondary battery having strikingly improved low temperature characteristics, cycle characteristics and high-rate discharge characteristics as compared to conventional batteries can be obtained.

    摘要翻译: 含有含氟聚合物的含氟聚合物的多孔元件用作聚合物,该含氟聚合物包含偏二氟乙烯作为主要单元,密度为0.55-1.30g / cm 3,Gurley值不大于150sec / 100cc 待置于正电极和负电极之间的固体电解质的衬底。 结果,固体电解质层显示出良好的离子传导性,并且可以获得与常规电池相比具有惊人改善的低温特性,循环特性和高放电特性的离子聚合物二次电池。