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。

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。

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。

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。

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。

公开(公告)号：US20090075049A1

公开(公告)日：2009-03-19

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： B32B27/00

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。 根据本发明的微孔聚乙烯膜的特征在于膜厚度为5-40μm，孔隙率为35-55％，磁导率为2.5×10-5至10.0×10-5达西，穿刺强度为至少 在90℃下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2.0×10-5〜8.0×10-5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。

公开(公告)号：US20090169862A1

公开(公告)日：2009-07-02

申请号：US12318167

申请日：2008-12-23

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

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

IPC分类号： B32B3/26 ,  B32B27/32

CPC分类号： B32B27/32 ,  B32B37/153 ,  B32B38/0032 ,  B32B2038/0028 ,  B32B2305/30 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06 ,  H01M2/1653 ,  H01M2/1686 ,  Y10T428/1379 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249981 ,  Y10T428/249986

摘要： The present invention relates to a multi-layered microporous polyolefin film for a battery separator and a method for preparing the same. The microporous multi-layered film of the present invention has a characteristics to have both the low shutdown temperature conferred by the polyethylene and the high melt fracture temperature conferred by the polypropylene and heat-resistant filler. In addition, it has the high strength and stability conferred by the micropores prepared under wet process and the high permeability and high strength conferred by the macropores prepared under dry process. Therefore, this multi-layered film can be used effectively to manufacture a secondary battery with high capacity and high power.

摘要翻译： 本发明涉及一种电池用隔膜用多层多孔聚烯烃薄膜及其制备方法。 本发明的微孔多层膜具有由聚乙烯赋予的低关闭温度和由聚丙烯和耐热填料赋予的高熔融断裂温度两者的特性。 此外，它具有由湿法制备的微孔赋予的高强度和稳定性，以及由干法制备的大孔赋予的高渗透性和高强度。 因此，该多层膜可以有效地用于制造高容量，高功率的二次电池。

公开(公告)号：US08801984B2

公开(公告)日：2014-08-12

申请号：US13183748

申请日：2011-07-15

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

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

IPC分类号： B29C44/04 ,  B29C44/06 ,  B29C55/00 ,  B29C47/06 ,  B29C71/00 ,  H01M2/16 ,  B32B3/26

CPC分类号： B32B27/32 ,  B32B37/153 ,  B32B38/0032 ,  B32B2038/0028 ,  B32B2305/30 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06 ,  H01M2/1653 ,  H01M2/1686 ,  Y10T428/1379 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249981 ,  Y10T428/249986

摘要： The present invention relates to a multi-layered microporous polyolefin film for a battery separator and a method for preparing the same. The microporous multi-layered film of the present invention has a characteristics to have both the low shutdown temperature conferred by the polyethylene and the high melt fracture temperature conferred by the polypropylene and heat-resistant filler. In addition, it has the high strength and stability conferred by the micropores prepared under wet process and the high permeability and high strength conferred by the macropores prepared under dry process. Therefore, this multi-layered film can be used effectively to manufacture a secondary battery with high capacity and high power.

摘要翻译： 本发明涉及一种电池用隔膜用多层多孔聚烯烃薄膜及其制备方法。 本发明的微孔多层膜具有由聚乙烯赋予的低关闭温度和由聚丙烯和耐热填料赋予的高熔融断裂温度两者的特性。 此外，它具有由湿法制备的微孔赋予的高强度和稳定性，以及由干法制备的大孔赋予的高渗透性和高强度。 因此，该多层膜可以有效地用于制造高容量，高功率的二次电池。

公开(公告)号：US08003204B2

公开(公告)日：2011-08-23

申请号：US12318167

申请日：2008-12-23

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

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

IPC分类号： B32B3/26

CPC分类号： B32B27/32 ,  B32B37/153 ,  B32B38/0032 ,  B32B2038/0028 ,  B32B2305/30 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/06 ,  H01M2/1653 ,  H01M2/1686 ,  Y10T428/1379 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249981 ,  Y10T428/249986

摘要： The present invention relates to a multi-layered microporous polyolefin film for a battery separator and a method for preparing the same. The microporous multi-layered film of the present invention has a characteristics to have both the low shutdown temperature conferred by the polyethylene and the high melt fracture temperature conferred by the polypropylene and heat-resistant filler. In addition, it has the high strength and stability conferred by the micropores prepared under wet process and the high permeability and high strength conferred by the macropores prepared under dry process. Therefore, this multi-layered film can be used effectively to manufacture a secondary battery with high capacity and high power.

摘要翻译： 本发明涉及一种电池用隔膜用多层多孔聚烯烃薄膜及其制备方法。 本发明的微孔多层膜具有由聚乙烯赋予的低关闭温度和由聚丙烯和耐热填料赋予的高熔融断裂温度两者的特性。 此外，它具有由湿法制备的微孔赋予的高强度和稳定性，以及由干法制备的大孔赋予的高渗透性和高强度。 因此，该多层膜可以有效地用于制造高容量，高功率的二次电池。

公开(公告)号：US20110064929A1

公开(公告)日：2011-03-17

申请号：US12992621

申请日：2009-05-14

申请人： Jang-weon Rhee ,  Inhwa Jung ,  Gwigwon Kang ,  Youngkeun Lee

发明人： Jang-weon Rhee ,  Inhwa Jung ,  Gwigwon Kang ,  Youngkeun Lee

IPC分类号： B32B3/26 ,  B32B7/02

CPC分类号： H01M2/166 ,  B32B1/00 ,  B32B3/00 ,  B32B3/26 ,  B32B7/02 ,  B32B7/10 ,  B32B27/06 ,  B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/205 ,  B32B27/32 ,  B32B2264/00 ,  B32B2264/0214 ,  B32B2264/0242 ,  B32B2264/0264 ,  B32B2264/0278 ,  B32B2264/10 ,  B32B2264/102 ,  B32B2264/104 ,  B32B2264/12 ,  B32B2307/30 ,  B32B2307/306 ,  B32B2307/581 ,  B32B2307/734 ,  B32B2457/10 ,  H01M2/1686 ,  H01M10/0525 ,  Y10T428/2495 ,  Y10T428/24998

摘要： Provided is a microporous film for a secondary battery, and more particularly, to a microporous film for a secondary battery with excellent quality stability and heat resistance, the microporous film comprising a 3 layer microporous film wherein: an inner layer that includes polypropylene of 20-80 wt % having a melting temperature of 150° C. or higher and a filler of 80-20 wt % having a melting temperature of 140° C. or higher, wherein a gross content of the filler and polypropylene in the inner layer is 60 wt % or more, and both surface layers which include polyethylene, wherein at least one layer of the both surface layers includes polyethylene of 70 wt % or more.

摘要翻译： 本发明提供一种二次电池用微孔膜，更具体地说，涉及一种具有良好的质量稳定性和耐热性的二次电池用微孔膜，该微孔膜包含3层微孔膜，其中，含有20〜 具有150℃以上的熔融温度的80重量％和熔融温度为140℃以上的80〜20重量％的填料，其中，内层中的填料和聚丙烯的总含量为60 wt％以上，以及包括聚乙烯的两个表面层，其中两个表面层的至少一层包括70重量％以上的聚乙烯。