Methods for testing lithium ion battery and evaluating safety of lithium ion battery
    4.
    发明授权
    Methods for testing lithium ion battery and evaluating safety of lithium ion battery 有权
    测试锂离子电池的方法和评估锂离子电池的安全性

    公开(公告)号:US09250297B2

    公开(公告)日:2016-02-02

    申请号:US13675028

    申请日:2012-11-13

    IPC分类号: G01N27/416 G01R31/36

    CPC分类号: G01R31/3627

    摘要: A method for testing a lithium ion battery is disclosed. An under-test lithium ion battery including a cathode active material is provided. A reference voltage value is set according to the cathode active material. The under-test lithium ion battery is over charged, while an actual voltage change of the under-test lithium ion battery is tested during the over charging. A maximum voltage value is recorded before a first decrease in the actual voltage change of the under-test lithium ion battery during the over charging. The maximum voltage value is compared with the reference voltage value. A method for evaluating a safety of a lithium ion battery is also disclosed.

    摘要翻译: 公开了一种锂离子电池的测试方法。 提供了包含正极活性物质的未被测试的锂离子电池。 根据阴极活性物质设定基准电压值。 未充分测试的锂离子电池过电压,而在过充电期间测试未测试锂离子电池的实际电压变化。 在过充电期间,被测试锂离子电池的实际电压变化的第一次降低之前记录最大电压值。 将最大电压值与参考电压值进行比较。 还公开了一种用于评估锂离子电池的安全性的方法。

    Lithium ion battery
    5.
    发明授权
    Lithium ion battery 有权
    锂离子电池

    公开(公告)号:US08889293B2

    公开(公告)日:2014-11-18

    申请号:US13652610

    申请日:2012-10-16

    IPC分类号: H01M4/60

    摘要: A lithium ion battery includes a cathode electrode, an anode electrode, and an electrolyte. The anode electrode is spaced from the cathode electrode. The anode electrode includes an anode active material. The anode active material includes sulfur grafted poly(pyridinopyridine). The sulfur grafted poly(pyridinopyridine) includes a poly(pyridinopyridine) matrix and sulfur dispersed in the poly(pyridinopyridine) matrix. The electrolyte is located between the cathode electrode and the anode electrode.

    摘要翻译: 锂离子电池包括阴极电极,阳极电极和电解质。 阳极与阴极隔开。 阳极电极包括阳极活性材料。 阳极活性材料包括硫接枝的聚(吡啶并吡啶)。 硫接枝的聚(吡啶并吡啶)包括分散在聚(吡啶并吡啶)基质中的聚(吡啶并吡啶)基质和硫。 电解质位于阴极和阳极之间。

    Interpenetrating polymer network and method for making the same
    6.
    发明授权
    Interpenetrating polymer network and method for making the same 有权
    互穿聚合物网络及其制造方法

    公开(公告)号:US08642671B2

    公开(公告)日:2014-02-04

    申请号:US13653607

    申请日:2012-10-17

    摘要: An interpenetrating polymer network includes CH2—CH2—On segments, and is formed by polymerizing a first monomer R1—OCH2—CH2—OnR2 with a second monomer R3—OCH2—CH2—OmR4 under an initiator. Each “R1”, “R2” and “R3” includes —C═C— group or —C≡C— group. The “R4” includes an alkyl group or a hydrogen atom. The “m” and “n” are integer. Molecular weights of the first monomer and the second monomer are more than or equal to 100, and less than or equal to 800. The first monomer is less than or equal to 50% of the second monomer by weight. A method for making the interpenetrating polymer network is also provided.

    摘要翻译: 互穿聚合物网络包括CH2-CH2-On链段,并且通过在引发剂下将第一单体R 1 -OCH 2 -CH 2 -O·R 2与第二单体R 3 -OCH 2 -CH 2 -OMRR 4聚合而形成。 每个“R1”,“R2”和“R3”包括-C = C-基团或-C = C-基团。 “R4”包括烷基或氢原子。 “m”和“n”是整数。 第一单体和第二单体的分子量大于或等于100,小于或等于800.第一单体小于或等于第二单体重量的50%。 还提供了制备互穿聚合物网络的方法。

    Voltage cycling method for lithium ion battery comprising sulfur polymer composite in active material
    10.
    发明授权
    Voltage cycling method for lithium ion battery comprising sulfur polymer composite in active material 有权
    锂离子电池的电压循环方法,包括活性材料中的硫聚合物复合材料

    公开(公告)号:US09450234B2

    公开(公告)日:2016-09-20

    申请号:US13652613

    申请日:2012-10-16

    摘要: A method for cycling a sulfur composite lithium ion battery includes a step of charging and discharging the sulfur composite lithium ion battery at a first voltage range between a predetermined highest voltage and a predetermined lowest voltage. The lithium ion battery includes an electrode active material. The electrode active material includes a sulfur composite. The step of charging and discharging satisfies at least one conditions of (1) and (2): (1) the predetermined lowest voltage of the first voltage range is larger than a discharge cutoff voltage of the sulfur composite; and (2) the predetermined highest voltage of the first voltage range is smaller than a charge cutoff voltage of the sulfur composite. A method for using a sulfur composite as an electrode active material of a lithium ion battery is also disclosed.

    摘要翻译: 硫复合锂离子电池循环的方法包括在预定的最高电压和预定的最低电压之间的第一电压范围内对硫化合物锂离子电池进行充电和放电的步骤。 锂离子电池包括电极活性材料。 电极活性物质包括硫化合物。 充放电步骤满足(1)和(2)的至少一个条件:(1)第一电压范围的预定最低电压大于硫复合物的放电截止电压; 和(2)第一电压范围的预定最高电压小于硫复合材料的充电截止电压。 还公开了使用硫化合物作为锂离子电池的电极活性物质的方法。