Lithium-ion battery
    1.
    发明授权
    Lithium-ion battery 有权
    锂离子电池

    公开(公告)号:US08105714B2

    公开(公告)日:2012-01-31

    申请号:US11777628

    申请日:2007-07-13

    IPC分类号: H01M4/02

    摘要: A lithium-ion battery includes a plurality of generally planar positive and negative electrodes arranged in alternating fashion to form an electrode stack. Each of the electrodes includes a current collector having two opposed surfaces and an active material provided on at least one of the two opposed surfaces. The active material of the negative electrodes has a potential that is greater than 0.2 volts versus a reference electrode. The area of the current collectors of the negative electrodes covered by active material is not larger than the area of the current collectors of the positive electrodes covered by active material.

    摘要翻译: 锂离子电池包括以交替方式布置以形成电极堆叠的多个大致平面的正极和负极。 每个电极包括具有两个相对表面的集电器和设置在两个相对表面中的至少一个上的活性材料。 相对于参考电极,负电极的活性材料具有大于0.2伏的电位。 由活性物质覆盖的负极的集电体的面积不大于被活性物质覆盖的正极的集电体的面积。

    Negative-limited lithium-ion battery
    4.
    发明授权
    Negative-limited lithium-ion battery 有权
    负极限锂离子电池

    公开(公告)号:US08383269B2

    公开(公告)日:2013-02-26

    申请号:US13086294

    申请日:2011-04-13

    IPC分类号: H01M4/58

    摘要: A rechargeable lithium-ion battery includes a positive electrode having a first capacity and a negative electrode having a second capacity that is less than the first capacity such that the battery has a negative-limited design. The negative electrode includes a lithium titanate active material. A liquid electrolyte that includes a lithium salt dissolved in at least one non-aqueous solvent a porous polymeric separator are located between the positive electrode and negative electrode. The separator is configured to allow lithium ions to flow through the separator.

    摘要翻译: 可充电锂离子电池包括具有第一容量的正电极和具有小于第一容量的第二容量的负电极,使得电池具有负极限设计。 负极包括钛酸锂活性物质。 包含溶解在至少一种非水溶剂中的锂盐的多孔聚合物分离器的液体电解质位于正极和负极之间。 分离器构造成允许锂离子流过分离器。

    Negative-limited lithium-ion battery
    5.
    发明授权
    Negative-limited lithium-ion battery 有权
    负极限锂离子电池

    公开(公告)号:US07927742B2

    公开(公告)日:2011-04-19

    申请号:US12240652

    申请日:2008-09-29

    IPC分类号: H01M4/48

    摘要: A rechargeable lithium-ion battery includes a positive electrode that includes a first current collector and a first active material. The battery also includes an electrolyte and a negative electrode that includes a second current collector and a second active material, where the second active material includes a lithium titanate material. The positive electrode has a first capacity and the negative electrode has a second capacity, the second capacity being less than the first capacity such that the rechargeable lithium-ion battery is negative-limited.

    摘要翻译: 可充电锂离子电池包括包括第一集电器和第一活性材料的正电极。 电池还包括电解质和负极,其包括第二集电器和第二活性材料,其中第二活性材料包括钛酸锂材料。 正极具有第一容量,负极具有第二容量,第二容量小于第一容量,使得可再充电锂离子电池为负极限制。

    NEGATIVE-LIMITED LITHIUM-ION BATTERY
    7.
    发明申请
    NEGATIVE-LIMITED LITHIUM-ION BATTERY 有权
    负极有限锂离子电池

    公开(公告)号:US20090035662A1

    公开(公告)日:2009-02-05

    申请号:US12240652

    申请日:2008-09-29

    IPC分类号: H01M4/58

    摘要: A rechargeable lithium-ion battery includes a positive electrode that includes a first current collector and a first active material. The battery also includes an electrolyte and a negative electrode that includes a second current collector and a second active material, where the second active material includes a lithium titanate material. The positive electrode has a first capacity and the negative electrode has a second capacity, the second capacity being less than the first capacity such that the rechargeable lithium-ion battery is negative-limited.

    摘要翻译: 可充电锂离子电池包括包括第一集电器和第一活性材料的正电极。 电池还包括电解质和负极,其包括第二集电器和第二活性材料,其中第二活性材料包括钛酸锂材料。 正极具有第一容量,负极具有第二容量,第二容量小于第一容量,使得可再充电锂离子电池为负极限制。

    Formation process for lithium-ion batteries
    8.
    发明授权
    Formation process for lithium-ion batteries 有权
    锂离子电池的形成工艺

    公开(公告)号:US08980453B2

    公开(公告)日:2015-03-17

    申请号:US12112979

    申请日:2008-04-30

    摘要: A method for producing a battery includes providing a battery having a positive electrode, a negative electrode, and an electrolyte that includes a solvent and a salt. The capacity of the negative electrode is less than that of the positive electrode and the negative electrode includes an active material having an average potential versus a lithium reference electrode of greater than approximately 0.2 volts. The method also includes applying an initial charge to the battery at a voltage that is greater than a fully charged voltage of the battery for a sufficient amount of time to cause at least a portion of the solvent to undergo a reduction reaction. The step of applying an initial charge to the battery acts to increase the irreversible capacity loss of the battery during the initial charge and provides the battery with enhanced tolerance to deep discharge conditions.

    摘要翻译: 电池的制造方法包括提供具有正极,负极和包含溶剂和盐的电解质的电池。 负极的容量小于正极的容量,负极包括具有大于约0.2伏特的平均电位相对于锂参比电极的活性材料。 该方法还包括以大于电池的完全充电电压的电压对电池施加初始电荷足够的时间以使至少一部分溶剂进行还原反应。 向电池施加初始电荷的步骤用于增加初始充电期间电池的不可逆容量损失,并为电池提供增强的对深放电条件的容限。

    FORMATION PROCESS FOR LITHIUM-ION BATTERIES
    9.
    发明申请
    FORMATION PROCESS FOR LITHIUM-ION BATTERIES 有权
    锂离子电池的形成过程

    公开(公告)号:US20090274849A1

    公开(公告)日:2009-11-05

    申请号:US12112979

    申请日:2008-04-30

    IPC分类号: B01J19/08

    摘要: A method for producing a battery includes providing a battery having a positive electrode, a negative electrode, and an electrolyte that includes a solvent and a salt. The capacity of the negative electrode is less than that of the positive electrode and the negative electrode includes an active material having an average potential versus a lithium reference electrode of greater than approximately 0.2 volts. The method also includes applying an initial charge to the battery at a voltage that is greater than a fully charged voltage of the battery for a sufficient amount of time to cause at least a portion of the solvent to undergo a reduction reaction. The step of applying an initial charge to the battery acts to increase the irreversible capacity loss of the battery during the initial charge and provides the battery with enhanced tolerance to deep discharge conditions.

    摘要翻译: 电池的制造方法包括提供具有正极,负极和包含溶剂和盐的电解质的电池。 负极的容量小于正极的容量,负极包括具有大于约0.2伏特的平均电位相对于锂参比电极的活性材料。 该方法还包括以大于电池的完全充电电压的电压对电池施加初始电荷足够的时间以使至少一部分溶剂进行还原反应。 向电池施加初始电荷的步骤用于增加初始充电期间电池的不可逆容量损失,并为电池提供增强的对深放电条件的容限。