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    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY SYSTEM
    4.
    发明申请
    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY SYSTEM 审中-公开

    公开(公告)号：US20170271671A1

    公开(公告)日：2017-09-21

    申请号：US15454454

    申请日：2017-03-09

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Dai YAMAMOTO ,  Yuki WATANABE ,  Tetsuro KANO ,  Nobuyasu NEGISHI ,  Hidesato SARUWATARI

    IPC: H01M4/525 ,  H01M10/0569 ,  H01M10/06 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/485

    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material layer including a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material layer including a spinel type lithium titanate. The nonaqueous electrolyte has an ion conductivity of not less than 7 mS/cm and not more than 10 mS/cm at 25° C. A capacity ratio p/n is within a range of not less than 1.4 and not more than 1.8. A thickness ratio Tp/Tn is within a range of not less than 1.05 and less than 1.3. A ratio Pp/Pn is within a range of not less than 0.55 and less than 0.8.

    ELECTRODE, ELECTRODE GROUP, BATTERY, AND BATTERY PACK
    8.
    发明申请
    ELECTRODE, ELECTRODE GROUP, BATTERY, AND BATTERY PACK 有权

    公开(公告)号：US20210408540A1

    公开(公告)日：2021-12-30

    申请号：US17474532

    申请日：2021-09-14

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Keigo HOSHINA ,  Dai YAMAMOTO ,  Tetsuro KANO ,  Masanori TANAKA ,  Yuki WATANABE ,  Nobuyasu NEGISHI

    IPC: H01M4/525 ,  H01M4/505 ,  H01M4/36

    Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector and an active material-containing layer formed on the current collector. The active material-containing layer contains a lithium nickel cobalt manganese composite oxide and a lithium cobalt composite oxide. Pore size distribution obtained by mercury intrusion porosimetry for the active material-containing layer has a first peak top indicating a highest intensity I1 within a pore size range of from 0.1 μm to 1 μm and a second peak top indicating an intensity I2 which is a second highest intensity after the highest intensity I1 within the pore size range of from 0.1 μm to 1 μm. A pore size at the first peak top is smaller than a pore size at the second peak top.

    ELECTRODE, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK
    9.
    发明申请
    ELECTRODE, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK 有权

    公开(公告)号：US20210013497A1

    公开(公告)日：2021-01-14

    申请号：US17025018

    申请日：2020-09-18

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Tetsuro KANO ,  Yuki WATANABE ,  Kazuhiro NAMBA ,  Hidetoshi WATANABE ,  Keigo HOSHINA

    IPC: H01M4/36 ,  H01M4/62 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active-material containing layer that includes active material particles and a binder containing a polymer that contains monomers containing nitrogen atoms. The particle size distribution chart of the electrode obtained by the laser diffraction scattering has peak A and peak B whose particle sizes corresponding to their peak tops are different from each other. The particle size DA corresponding to the peak top of the peak A is smaller than the particle size DB corresponding to the peak top of the peak B. The ratio PA/PB of the frequency PA of the peak top of the peak A and the frequency PB of the peak top of the peak B falls within the range of 0.2 or larger and 1.5 or smaller.

    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK
    10.
    发明申请
    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK 有权
    非电解电池电池和电池组

    公开(公告)号：US20160036039A1

    公开(公告)日：2016-02-04

    申请号：US14644826

    申请日：2015-03-11

    Applicant: Kabushiki Kaisha Toshiba

    Inventor： Hiromichi KURIYAMA ,  Hidesato SARUWATARI ,  Tetsuro KANO ,  Yuki WATANABE ,  Norio TAKAMI

    IPC: H01M4/131 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505

    CPC classification number: H01M4/131 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292

    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. An Li-atom abundance ratio ALi, Ti-atom abundance ratio ATi, and C-atom abundance ratio AC of a surface of the negative electrode satisfy inequalities 2≦AC/ATi≦10, and 1.0≦ALi/AC≦1.5. The positive electrode includes a nickel-cobalt-manganese composite oxide represented by a composition formula Li1-aNixCoyMnzO2. Subscripts x, y, and z satisfy an inequality 0.1≦x/(y+z)≦1.3, and subscript a satisfies an inequality 0≦a≦1. A ratio p/n of a capacity p of the positive electrode to a capacity n of the negative electrode is within a range of 1.2 to 2.

    Abstract translation: 根据一个实施例，提供一种非水电解质电池。 非水电解质电池包括负极，正极和非水电解质。 负极表面的Li原子丰度比ALi，Ti原子丰度比ATi和C原子丰度比AC满足不等式2＆nlE; AC / ATi＆nlE; 10和1.0＆nlE; ALi / AC＆nlE; 1.5。 正极包括由组成式Li1-aNixCoyMnzO2表示的镍钴锰复合氧化物。 下标x，y和z满足不等式0.1＆nlE; x /（y + z）＆nlE; 1.3，下标a满足不等式0＆nlE; a＆nlE; 1。 正极的容量p与负极的电容n的比p / n在1.2〜2的范围内。

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