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    Microporous Polyethylene Film with Good Property of Strength and Permeability at High Temperature
    1.
    发明申请
    Microporous Polyethylene Film with Good Property of Strength and Permeability at High Temperature 有权
    在高温下具有良好的强度和渗透性能的微孔聚乙烯薄膜

    公开(公告)号：US20120156570A1

    公开(公告)日：2012-06-21

    申请号：US13403324

    申请日：2012-02-23

    申请人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    发明人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    IPC分类号： H01M2/16 ,  B29C44/56 ,  C08F110/02

    CPC分类号： H01M2/1653 ,  B29C55/14 ,  B29C55/16 ,  B29K2023/065 ,  B29K2105/0073 ,  B29K2105/04 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/249953 ,  Y10T428/249978

    摘要： The present invention relates to a microporous polyethylene film for use as battery separator. The microporous polyethylene film according to the present invention is characterized by having a film thickness of 5-40 μm, a porosity of 35-55%, a permeability from 2.5×10−5 to 10.0 10−5 Darcy, a puncture strength of at least 0.10 N/μm at 90° C., a puncture angle of at least 30° at 90° C., and a permeability from 2.0 10−5 to 8.0 10−5 Darcy after shrinking freely at 120° C. for 1 hour. The microporous polyethylene film in accordance with the present invention has very superior puncture strength and thermal stability at high temperature and takes place of less decrease of permeability due to low thermal shrinkage at high temperature, as well as superior permeability. Therefore, it can be usefully applied in a high-capacity, high-power battery to improve thermal stability and long-term stability of the battery.

    摘要翻译： 本发明涉及用作电池隔膜的微孔聚乙烯膜。 本发明的微孔性聚乙烯膜的特征在于膜厚为5-40μm，孔隙率为35-55％，磁导率为2.5×10-5〜10.0×10-5达西，穿刺强度为 在90℃下至少0.10N /μm，在90℃下穿刺角度至少为30°，在120℃下自由收缩1小时后的渗透率为2.0×10-5至8.0×10-5达西 。 根据本发明的微孔聚乙烯膜在高温下具有非常优异的穿刺强度和热稳定性，并且由于在高温下的低热收缩率以及优异的渗透性而导致的渗透性降低较少。 因此，可以有效地应用于大容量，大功率的电池中，以提高电池的热稳定性和长期的稳定性。

    Microporous polyolefin film possessing good mechanical properties and thermal stability
    3.
    发明申请
    Microporous polyolefin film possessing good mechanical properties and thermal stability 有权
    微孔聚烯烃膜具有良好的机械性能和热稳定性

    公开(公告)号：US20090148685A1

    公开(公告)日：2009-06-11

    申请号：US12292584

    申请日：2008-11-21

    申请人： Gwigwon Kang ,  Jang-Weon Rhee ,  Inhwa Jung ,  Youngkeun Lee ,  Yongkyoung Kim

    发明人： Gwigwon Kang ,  Jang-Weon Rhee ,  Inhwa Jung ,  Youngkeun Lee ,  Yongkyoung Kim

    IPC分类号： B32B27/32

    CPC分类号： H01M2/1653 ,  B01D71/28 ,  B01D2325/02 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/24 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/24

    摘要： The present invention relates to a microporous polyolefin film suitable as a separator for batteries and thermal properties thereof. A microporous polyolefin film according to the present invention has a film thickness of 5-40 μm, a porosity of 30%-60%, a permeability of 2.0×10−5-8.0×10−5 Darcy, a maximum pore size determined by the bubble point method of not more than 0.1 μm, a puncture strength of 0.20 N/μm or more at room temperature and 0.05 N/μm or more at 120° C., and a maximum shrinkage ratio in the transverse direction (TD) when subjected to a thickness-normalized external force in TMA (thermo-mechanical analysis) of not more than 0%. With excellent thermal stability at high temperature as well as superior puncture strength and gas permeability, the microporous polyolefin film according to the present invention is suitable for high-capacity, and high-power batteries.

    摘要翻译： 本发明涉及适合作为电池用隔膜的微孔性聚烯烃膜及其热性质。 根据本发明的微孔聚烯烃膜具有5-40μm的膜厚度，30％-60％的孔隙率，2.0×10-5-8.0×10-5达西的渗透率，由气泡确定的最大孔径 点法为0.1μm以下，室温下的穿刺强度为0.20N / m 2以上，在120℃下为0.05N / m 2以上，当经受了最大收缩率（TD）时， TMA（热机械分析）中的厚度归一化外力不大于0％。 本发明的微孔聚烯烃薄膜在高温下具有良好的热稳定性以及优异的穿刺强度和气体渗透性，适用于大容量和大功率的电池。

    Microporous polyethylene film with good property of strength and permeability at high temperature
    5.
    发明授权
    Microporous polyethylene film with good property of strength and permeability at high temperature 有权
    微孔聚乙烯薄膜在高温下具有良好的强度和渗透性能

    公开(公告)号：US08354185B2

    公开(公告)日：2013-01-15

    申请号：US13403324

    申请日：2012-02-23

    申请人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    发明人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    IPC分类号： B29C51/04 ,  B01D69/06 ,  B32B3/26 ,  H01M2/16

    CPC分类号： H01M2/1653 ,  B29C55/14 ,  B29C55/16 ,  B29K2023/065 ,  B29K2105/0073 ,  B29K2105/04 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/249953 ,  Y10T428/249978

    摘要： The present invention relates to a microporous polyethylene film for use as battery separator. The microporous polyethylene film according to the present invention is characterized by having a film thickness of 5-40 μm, a porosity of 35-55%, a permeability from 2.5×10−5 to 10.0 10−5 Darcy, a puncture strength of at least 0.10 N/μm at 90° C., a puncture angle of at least 30° at 90° C., and a permeability from 2.0 10−5 to 8.0 10−5 Darcy after shrinking freely at 120° C. for 1 hour. The microporous polyethylene film in accordance with the present invention has very superior puncture strength and thermal stability at high temperature and takes place of less decrease of permeability due to low thermal shrinkage at high temperature, as well as superior permeability. Therefore, it can be usefully applied in a high-capacity, high-power battery to improve thermal stability and long-term stability of the battery.

    摘要翻译： 本发明涉及用作电池隔膜的微孔聚乙烯膜。 本发明的微孔性聚乙烯膜的特征在于膜厚为5-40μm，孔隙率为35-55％，磁导率为2.5×10-5〜10.0×10-5达西，穿刺强度为 在90℃下至少0.10N /μm，在90℃下穿刺角度至少为30°，在120℃下自由收缩1小时后的渗透率为2.0×10-5至8.0×10-5达西 。 根据本发明的微孔聚乙烯膜在高温下具有非常优异的穿刺强度和热稳定性，并且由于在高温下的低热收缩率以及优异的渗透性而导致的渗透性降低较少。 因此，可以有效地应用于大容量，大功率的电池中，以提高电池的热稳定性和长期的稳定性。

    Microporous polyolefin film possessing good mechanical properties and thermal stability
    6.
    发明授权
    Microporous polyolefin film possessing good mechanical properties and thermal stability 有权
    微孔聚烯烃膜具有良好的机械性能和热稳定性

    公开(公告)号：US08048936B2

    公开(公告)日：2011-11-01

    申请号：US12292584

    申请日：2008-11-21

    申请人： Gwigwon Kang ,  Jang-Weon Rhee ,  Inhwa Jung ,  Youngkeun Lee ,  Yongkyoung Kim

    发明人： Gwigwon Kang ,  Jang-Weon Rhee ,  Inhwa Jung ,  Youngkeun Lee ,  Yongkyoung Kim

    IPC分类号： C08J9/00 ,  B32B5/00

    CPC分类号： H01M2/1653 ,  B01D71/28 ,  B01D2325/02 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/24 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/24

    摘要： The present invention relates to a microporous polyolefin film suitable as a separator for batteries and thermal properties thereof. A microporous polyolefin film according to the present invention has a film thickness of 5-40 μm, a porosity of 30%-60%, a permeability of 2.0×10−5-8.0×10−5 Darcy, a maximum pore size determined by the bubble point method of not more than 0.1 μm, a puncture strength of 0.20 N/μm or more at room temperature and 0.05 N/μm or more at 120° C., and a maximum shrinkage ratio in the transverse direction (TD) when subjected to a thickness-normalized external force in TMA (thermo-mechanical analysis) of not more than 0%. With excellent thermal stability at high temperature as well as superior puncture strength and gas permeability, the microporous polyolefin film according to the present invention is suitable for high-capacity, and high-power batteries.

    摘要翻译： 本发明涉及适合作为电池用隔膜的微孔性聚烯烃膜及其热性质。 根据本发明的微孔聚烯烃膜的膜厚度为5-40μm，孔隙率为30％-60％，磁导率为2.0×10-5-8.0×10-5达西，最大孔径由 泡点法不超过0.1μm，室温下的穿刺强度为0.20N /μm以上，在120℃为0.05N /μm以上，横向上的最大收缩率（TD）为 在TMA（热机械分析）中经受了不大于0％的厚度归一化外力。 本发明的微孔聚烯烃薄膜在高温下具有良好的热稳定性以及优异的穿刺强度和气体渗透性，适用于高容量和大功率的电池。

    Microporous polyethylene film with good property of strength and permeability at high temperature
    10.
    发明授权
    Microporous polyethylene film with good property of strength and permeability at high temperature 有权
    微孔聚乙烯薄膜在高温下具有良好的强度和渗透性能

    公开(公告)号：US08486521B2

    公开(公告)日：2013-07-16

    申请号：US12232112

    申请日：2008-09-11

    申请人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    发明人： Inhwa Jung ,  Jang-Weon Rhee ,  Gwigwon Kang ,  Youngkeun Lee ,  Yongkyoung Kim

    IPC分类号： B32B27/32 ,  B29C47/00 ,  C08F110/00

    CPC分类号： H01M2/1653 ,  B29C55/14 ,  B29C55/16 ,  B29K2023/065 ,  B29K2105/0073 ,  B29K2105/04 ,  C08J5/18 ,  C08J2323/06 ,  Y10T428/249953 ,  Y10T428/249978

    摘要： The present invention relates to a microporous polyethylene film for use as battery separator. The microporous polyethylene film according to the present invention is characterized by having a film thickness of 5-40 μm, a porosity of 35-55%, a permeability from 2.5×10−5 to 10.0 10−5 Darcy, a puncture strength of at least 0.10 N/μm at 90° C., a puncture angle of at least 30° at 90° C., and a permeability from 2.0 10−5 to 8.0 10−5 Darcy after shrinking freely at 120° C. for 1 hour. The microporous polyethylene film in accordance with the present invention has very superior puncture strength and thermal stability at high temperature and takes place of less decrease of permeability due to low thermal shrinkage at high temperature, as well as superior permeability. Therefore, it can be usefully applied in a high-capacity, high-power battery to improve thermal stability and long-term stability of the battery.

    摘要翻译： 本发明涉及用作电池隔膜的微孔聚乙烯膜。 本发明的微孔性聚乙烯薄膜的特征在于膜厚为5-40μm，孔隙率为35-55％，磁导率为2.5×10-5至10.0×10-5达西，穿刺强度为 在90℃下至少0.10N / m，90℃下穿刺角度至少为30°，在120℃下自由收缩1小时后的渗透率为2.0×10-5至8.0×10-5达西 。 根据本发明的微孔聚乙烯膜在高温下具有非常优异的穿刺强度和热稳定性，并且由于在高温下的低热收缩率以及优异的渗透性而导致的渗透性降低较少。 因此，可以有效地应用于大容量，大功率的电池中，以提高电池的热稳定性和长期的稳定性。