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    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK
    3.
    发明申请
    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK 有权

    公开(公告)号：US20210005863A1

    公开(公告)日：2021-01-07

    申请号：US17024967

    申请日：2020-09-18

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Toshitada NAKAZAWA ,  Dai YAMAMOTO ,  Masataka SHIKOTA ,  Aki HASEGAWA

    IPC: H01M2/18 ,  H01M2/16 ,  H01M4/485 ,  H01M10/0525

    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer including a titanium-containing oxide. A logarithmic differential pore volume distribution curve of the separator obtained by a mercury intrusion method includes a first peak at which a pore diameter is in the range from 0.02 μm to 0.15 μm and second peak at which the pore diameter is in the range from 1.5 μm to 30 μm. A ratio P2I/P1I of a second peak intensity to a first peak intensity is more than 1.00 and not more than 3.00. The pore specific surface area of the separator is 70 m2/g or more.

    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK
    5.
    发明申请
    NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK 审中-公开
    非电解电池电池和电池组

    公开(公告)号：US20160380257A1

    公开(公告)日：2016-12-29

    申请号：US15261031

    申请日：2016-09-09

    Applicant: Kabushiki Kaisha Toshiba

    Inventor： Hidesato SARUWATARI ,  Masataka SHIKOTA ,  Dai YAMAMOTO

    IPC: H01M4/131 ,  H01M2/16 ,  H01M2/10 ,  H01M2/14 ,  H01M2/34 ,  H01M4/485

    CPC classification number: H01M4/131 ,  H01M2/1077 ,  H01M2/145 ,  H01M2/16 ,  H01M2/1626 ,  H01M2/1673 ,  H01M2/348 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/425 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20 ,  Y02T10/7011

    Abstract: According to an embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator sandwiched between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Li-absorbing potential of 1 V vs. Li/Li+ or more. An electrical resistance of the negative electrode in a discharged state is within a range of 100 Ω·cm to 100000 Ω·cm. A pore volume ratio of pores having a pore diameter of 1 μm or more in the separator is more than 70%. The pore volume ratio is determined from a cumulative pore volume frequency curve of the separator obtained by a mercury intrusion porosimetry.

    Abstract translation: 根据一个实施方式，提供一种非水电解质电池。 非水电解质电池包括正极，负极，夹在正极和负极之间的隔板和非水电解质。 负极含有Li比Li / Li +以上的Li吸收电位为1V的负极活性物质。 放电状态的负极的电阻在100Ω·cm〜100000Ω·cm的范围内。 在隔膜中孔径为1μm以上的孔的孔体积比大于70％。 孔体积比由通过水银侵入孔隙率法获得的隔膜的累积孔体积频率曲线确定。

    BATTERY SYSTEM
    6.
    发明申请
    BATTERY SYSTEM 审中-公开
    电池系统

    公开(公告)号：US20150380787A1

    公开(公告)日：2015-12-31

    申请号：US14848890

    申请日：2015-09-09

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Haruchika ISHII ,  Kazuya KURIYAMA ,  Toshihide ARIKAWA ,  Hirotada TAHARA ,  Masataka SHIKOTA ,  Hiroki INAGAKI ,  Yuichi KlKUMA ,  Kengo KURATA ,  Hirotaka HAYASHIDA ,  Yoshinao TATEBAYASHI

    IPC: H01M16/00 ,  H01M10/06 ,  H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/131

    Abstract: According to an embodiment, there is provided a battery system. The battery system includes a first battery and a second battery connected in parallel with the first battery. The first battery includes a lead storage battery. The second battery includes a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The negative electrode includes a negative-electrode-mixture layer, and the negative-electrode-mixture layer contains lithium titanate. The positive electrode contains a positive electrode active material LiMn2-x(a)xO4. A ratio of a battery capacity of the second battery to a battery capacity of the first battery is in a range of 1/133 to 1/2.

    Abstract translation: 根据实施例，提供了一种电池系统。 电池系统包括与第一电池并联连接的第一电池和第二电池。 第一个电池包括一个铅蓄电池。 第二电池包括非水电解质电池。 非水电解质电池包括正极和负极。 负极包括负极混合层，负极混合层含有钛酸锂。 正极含有正极活性物质LiMn 2-x（a）xO 4。 第二电池的电池容量与第一电池的电池容量的比率在1/133至1/2的范围内。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK
    7.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK 审中-公开
    非水电解质二次电池和电池组

    公开(公告)号：US20140147739A1

    公开(公告)日：2014-05-29

    申请号：US14169943

    申请日：2014-01-31

    Applicant: Kabushiki Kaisha Toshiba

    Inventor： Hiroshi NAKAGAWA ,  Hidesato SARUWATARI ,  Masataka SHIKOTA ,  Kazuko NEWTON ,  Kazuya KURIYAMA

    IPC: H01M4/485

    CPC classification number: H01M4/485 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/486 ,  H01M2004/021 ,  H01M2200/10 ,  Y02T10/7011

    Abstract: According to an embodiment, a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode containing a lithium titanium composite oxide having a spinel structure as a negative electrode active material, and a nonaqueous electrolyte, wherein the lithium titanium composite oxide that is the negative electrode active material has an average particle size based on a mass basis of 0.3 μm or more but 0.9 μm or less, and a lithium carbonate content rate of the negative electrode is 0.1% by mass or less per mass of the negative electrode active material, is provided.

    Abstract translation: 根据一个实施方案，包括正电极，含有具有尖晶石结构的锂钛复合氧化物的负极作为负极活性物质的非水电解质二次电池和非水电解质，其中作为负极的锂钛复合氧化物 电极活性物质的质量基准的平均粒径为0.3μm以上且0.9μm以下，负极活性物质的质量比为0.1质量％以下， 被提供。

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