Lithium secondary battery
    12.
    发明授权

    公开(公告)号:US10115949B2

    公开(公告)日:2018-10-30

    申请号:US14366284

    申请日:2011-12-19

    摘要: This invention provides a lithium secondary battery which degrades less upon high-rate charge/discharge cycles (thus durable). The lithium secondary battery comprises positive electrode 10 having positive electrode active material layer 14, negative electrode 20 having negative electrode active material layer 24, organic porous material layer 32 placed between positive electrode active material layer 14 and negative electrode active material layer 24, inorganic porous material layer 34 placed between organic porous material layer 32 and negative electrode active material layer 24. Inorganic porous material layer 34 comprises an inorganic filler that does not store lithium at a potential higher than the lithium-storing potential of the negative electrode active material layer, and a Li absorber that irreversibly stores lithium at a potential higher than the lithium-storing potential.

    Non-aqueous electrolyte secondary battery
    14.
    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:US08067115B2

    公开(公告)日:2011-11-29

    申请号:US12030528

    申请日:2008-02-13

    IPC分类号: H01M4/13 H01M4/58

    摘要: A non-aqueous electrolyte secondary battery comprising at least a negative electrode having a current collector provided thereon with convex portions and columnar bodies formed on the convex portions, each of the columnar bodies comprising n stages (where n≧2) of overlaid columnar body portions alternately tilted to different orientations along a longitudinal direction of the current collector, a positive electrode having a positive electrode current collector provided on both surfaces thereof with a positive electrode mixture layer containing a positive electrode active material capable of inserting and extracting lithium ions reversibly, and a separator interposed between the positive electrode and the negative electrode in a confronting manner, wherein tip portions of the columnar body portions at the uppermost stage of the columnar bodies on the negative electrode are tilted toward a trailing end of winding direction.

    摘要翻译: 本发明提供一种非水电解质二次电池,其至少包括具有集电体的至少具有凸部的集电体和形成在所述凸部上的柱状体的负极,每个所述柱状体包括重叠的柱状体部的n个阶段(n≥2) 交替地沿着集电体的纵向方向倾斜到不同的取向,具有正极集电体的正电极在其两个表面上设置有包含能够可逆地插入和提取锂离子的正极活性材料的正电极混合物层,以及 以相对的方式插入在正极和负极之间的隔板,其中在负极上的柱状体的最上段的柱状体部的末端部朝向卷绕方向的后端倾斜。

    Non-Aqueous Electrolyte Secondary Battery
    17.
    发明申请
    Non-Aqueous Electrolyte Secondary Battery 有权
    非水电解液二次电池

    公开(公告)号:US20080118837A1

    公开(公告)日:2008-05-22

    申请号:US11795801

    申请日:2005-03-23

    IPC分类号: H01M4/52 H01M4/58

    摘要: Disclosed is a non-aqueous electrolyte secondary battery comprising a positive electrode containing a nickel-containing lithium composite oxide, a negative electrode containing graphite, and a non-aqueous electrolyte. The cut-off voltage of charge of this non-aqueous electrolyte secondary battery is 4.25 to 4.6 V. The negative electrode contains an additive that reacts with lithium at a potential higher than the potential of graphite. The ratio A/B of a positive electrode capacity A based on the weight of the nickel-containing lithium composite oxide and the cut-off voltage of charge relative to a weight B of the graphite contained in a portion of a negative electrode material mixture layer opposing to a positive electrode material mixture layer is 300 to 340 mAh/g, and the irreversible capacity C of the positive electrode and the irreversible capacity D of the negative electrode in the portion opposing to the positive electrode satisfies C≧D.

    摘要翻译: 公开了一种非水电解质二次电池,其包含含有镍的锂复合氧化物的正极,含有石墨的负极和非水电解质。 该非水电解质二次电池的电荷截止电压为4.25〜4.6V。负极含有与石墨的电位高的电位与锂反应的添加剂。 基于含镍锂复合氧化物的重量的正极容量A的比A / B和电荷相对于负极材料混合层的一部分中所含的石墨的重量B的截止电压 与正极合剂层相对的面积为300〜340mAh / g,正极的不可逆容量C和负极的与正极相反的部分的不可逆容量D满足C> = D。

    Secondary battery
    18.
    发明授权
    Secondary battery 有权
    二次电池

    公开(公告)号:US07153606B2

    公开(公告)日:2006-12-26

    申请号:US10826389

    申请日:2004-04-19

    IPC分类号: H01M2/02 H01M2/26

    摘要: A secondary battery including an electrode group formed by winding a positive electrode and a negative electrode with the interposition of a separator, the positive electrode includes a belt-shaped positive electrode core and a positive electrode material mixture carried on the positive electrode core, the negative electrode includes a belt-shaped negative electrode core and a negative electrode material mixture carried on the negative electrode core, at least one of the positive electrode and the negative electrode has an end portion parallel to the lengthwise direction thereof exposing the core, the end portion positioned at an end face of the electrode group is directly connected to a current collector plate, and at least part of the current collector plate is exposed outside at the bottom of a battery case.

    摘要翻译: 包括通过缠绕正极和负极而插入隔膜而形成的电极组的二次电池,正电极包括带状正电极芯和承载在正电极芯上的正极材料混合物,负极 电极包括承载在负极芯上的带状负极芯和负极材料混合物,正极和负极中的至少一个具有平行于其长度方向的端部暴露芯,端部 位于电极组的端面的电极直接与集电板连接,并且集电板的至少一部分露出在电池壳体的底部的外部。

    Portable power source and portable power source system
    19.
    发明申请
    Portable power source and portable power source system 有权
    便携式电源和便携式电源系统

    公开(公告)号:US20060275655A1

    公开(公告)日:2006-12-07

    申请号:US10558675

    申请日:2005-01-05

    申请人: Takayuki Shirane

    发明人: Takayuki Shirane

    IPC分类号: H01M2/24

    摘要: A portable power source system including a battery pack housing at least one secondary battery, wherein first and second internal terminals for connecting to a pair of external terminals are provided inside the battery pack, and two or more operations in different operating directions are required to connect the external terminals to the internal terminals. The battery pack includes external terminal inserting portions for inserting the external terminals, and the two or more operations include a first operation including inserting the external terminals into the external terminal inserting portions and a second operation in a direction different from that of the first operation. In a state before the first operation is performed, at least one of the internal terminals is shielded with a protective cover, and the protective cover recedes from a position for shielding the internal terminal, in conjunction with the first operation, the second operation or a combination of the first operation and the second operation, thereby enabling a connection of the external terminals to the internal terminals.

    摘要翻译: 一种便携式电源系统,包括容纳至少一个二次电池的电池组,其中用于连接到一对外部端子的第一和第二内部端子设置在电池组内部,并且需要在不同操作方向上的两个或更多个操作来连接 外部端子到内部端子。 电池组包括用于插入外部端子的外部端子插入部分,并且两个或更多个操作包括第一操作,包括将外部端子插入到外部端子插入部分中,并且第二操作沿与第一操作不同的方向进行。 在执行第一操作之前的状态下,通过保护盖屏蔽内部端子中的至少一个,并且保护盖与用于屏蔽内部端子的位置相结合,第一操作,第二操作或 第一操作和第二操作的组合,从而能够将外部端子连接到内部端子。