公开(公告)号：US20120070644A1

公开(公告)日：2012-03-22

申请号：US13263161

申请日：2010-04-05

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

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

IPC分类号： B32B3/26

CPC分类号： B01D71/26 ,  B01D69/02 ,  B01D69/12 ,  B01D69/148 ,  B01D2325/22 ,  B01D2325/32 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/1686 ,  Y10T428/249978 ,  Y10T428/249979

摘要： Provided is a microporous polyolefin multilayer film which may be used as a separator for a battery, and a method for preparing the same. At least one layer of the microporous polyolefin multilayer film contains 90˜100 wt % of polyethylene having a melting temperature of 130˜140° C. and at least the other layer has 20 wt % or more of a heat resistant resin and 80 wt % or less of a filler selected from the group consisting of an organic filler, an inorganic filler and a mixture thereof. The heat resistant resin is preferably a semi crystalline polymer or an amorphous polymer. Preferably, the semi crystalline polymer has a degree of crystallinity of 10-45% or a heat of fusion for melting of 20˜90 J/g and has a melting temperature of 145˜250° C. and a glass transition temperature of −100˜90° C. Also, preferably, the amorphous polymer has no crystal and has a glass transition temperature of 90˜120° C.

摘要翻译： 提供了可用作电池隔板的微孔聚烯烃多层膜及其制备方法。 至少一层微孔聚烯烃多层膜含有90〜100重量％的熔融温度为130〜140℃的聚乙烯，至少另一层为耐热性树脂20重量％以上，80重量％ 或更少的选自有机填料，无机填料及其混合物的填料。 耐热树脂优选为半结晶聚合物或无定形聚合物。 优选地，半结晶聚合物的结晶度为10-45％或熔融热为20〜90J / g，熔融温度为145〜250℃，玻璃化转变温度为-100℃ 〜90℃。此外，优选无定形聚合物不具有晶体，玻璃化转变温度为90〜120℃。

公开(公告)号：US20110266707A1

公开(公告)日：2011-11-03

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： B29D7/01

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：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：US08795826B2

公开(公告)日：2014-08-05

申请号：US12936416

申请日：2009-04-08

申请人： Jean Lee ,  Jongmoon Sung ,  Cholho Lee ,  Yongkyoung Kim ,  Youngkeun Lee

发明人： Jean Lee ,  Jongmoon Sung ,  Cholho Lee ,  Yongkyoung Kim ,  Youngkeun Lee

IPC分类号： B32B5/22

CPC分类号： H01M2/145 ,  B01D67/0079 ,  B01D69/141 ,  B01D71/26 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/0525 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/24998 ,  Y10T428/249981 ,  Y10T428/249986

摘要： Provided is a microporous polyolefin composite film with a thermally stable porous layer at high temperature, particularly, to the microporous polyolefin composite film in which the thermally stable porous layer at high temperature, which contains organic or inorganic particles and heat-resistant polymer having aromatic ring in main chain and also having a melting temperature or a glass transition temperature of 170 to 500° C., is formed on one surface or both surfaces of a polyolefin microporous film by a phase separation, wherein the composite film with the porous layer has a permeability of 1.5×10−5 to 20.0×10−5 Darcy, a meltdown temperature of 160 to 300° C., a MD/TD shrinkage of 1 to 40% at a temperature of 150° C. for 60 minutes.

摘要翻译： 本发明提供一种在高温下具有热稳定性多孔层的微孔聚烯烃复合膜，特别是涉及含有有机或无机颗粒的热稳定多孔层和具有芳环的耐热聚合物的微孔聚烯烃复合膜 在聚烯烃微多孔膜的一个表面或两个表面上通过相分离形成熔融温度或玻璃化转变温度为170〜500℃，其中具有多孔层的复合膜具有 渗透率为1.5×10-5〜20.0×10-5达西，熔融温度为160〜300℃，MD / TD收缩率为1〜40％，温度为150℃60分钟。

公开(公告)号：US20120077113A1

公开(公告)日：2012-03-29

申请号：US13320863

申请日：2010-06-17

申请人： Yongkyoung Kim ,  Jongmoon Sung ,  Jean Lee ,  Dongjin Joo ,  Youngkeun Lee

发明人： Yongkyoung Kim ,  Jongmoon Sung ,  Jean Lee ,  Dongjin Joo ,  Youngkeun Lee

IPC分类号： H01M2/16 ,  H01M8/02 ,  B05D5/00 ,  B32B3/26 ,  B32B7/02

CPC分类号： H01M2/1653 ,  C08J7/047 ,  C08J2323/04 ,  C08J2465/00 ,  C08J2477/00 ,  C08J2481/04 ,  H01M2/166 ,  H01M2/1686 ,  H01M8/1023 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1051 ,  H01M10/052 ,  Y10T428/2495 ,  Y10T428/249978

摘要： Provided is a microporous organic/ inorganic composite coated layer comprising a heat resistant resin and inorganic particles, formed on at least one side of microporous polyethylene. The microporous polyethylene composite film is characterized by sufficient permeability and heat resistance at the same time, of which the permeability (Gurley) of overall composite film including a coated layer is not more than 300 sec; shrinkage after 150° C. for 1 hour is 0-3% in both MD/TD directions; maximum shrinkage in TMA is not more than 3%, and TMA meldown temperature is 145-200° C. The microporous polyethylene composite film formed by means of the coated layer possesses stability at high temperature as well as excellent permeability, thereby ensuring reliability and efficiency of a battery at the same time. A separator which conforms to high power/high capacity can be provided thereby.

摘要翻译： 本发明提供一种微孔有机/无机复合涂层，其包含在微孔聚乙烯的至少一面上形成的耐热树脂和无机颗粒。 微孔聚乙烯复合膜的特征在于同时具有足够的渗透性和耐热性，其中包括涂层的整个复合膜的渗透率（Gurley）不超过300秒; 在150℃下1小时的收缩率在MD / TD方向上为0-3％; TMA最大收缩率不大于3％，TMA熔融温度为145-200℃。通过涂层形成的微孔聚乙烯复合膜在高温下具有稳定性和优异的渗透性，从而确保了可靠性和效率 的电池同时。 可以提供符合高功率/高容量的分离器。

公开(公告)号：US20110027642A1

公开(公告)日：2011-02-03

申请号：US12936416

申请日：2009-04-08

申请人： Jean Lee ,  Jongmoon Sung ,  Cholho Lee ,  Yongkyoung Kim ,  Youngkeun Lee

发明人： Jean Lee ,  Jongmoon Sung ,  Cholho Lee ,  Yongkyoung Kim ,  Youngkeun Lee

IPC分类号： H01M2/16 ,  B32B27/08 ,  B05D7/24 ,  B05D3/00 ,  B32B5/18

CPC分类号： H01M2/145 ,  B01D67/0079 ,  B01D69/141 ,  B01D71/26 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/0525 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/24998 ,  Y10T428/249981 ,  Y10T428/249986

摘要： Provided is a microporous polyolefin composite film with a thermally stable porous layer at high temperature, particularly, to the microporous polyolefin composite film in which the thermally stable porous layer at high temperature, which contains organic or inorganic particles and heat-resistant polymer having aromatic ring in main chain and also having a melting temperature or a glass transition temperature of 170 to 500° C., is formed on one surface or both surfaces of a polyolefin microporous film by a phase separation, wherein the composite film with the porous layer has a permeability of 1.5×105 to 20.O×IO 5 Darcy, a meltdown temperature of 160 to 300° C., a MD/TD shrinkage of 1 to 40% at a temperature of 15O° C. for 60 minutes.

摘要翻译： 本发明提供一种在高温下具有热稳定性多孔层的微孔聚烯烃复合膜，特别是涉及含有有机或无机颗粒的热稳定多孔层和具有芳环的耐热聚合物的微孔聚烯烃复合膜 在聚烯烃微多孔膜的一个表面或两个表面上通过相分离形成熔融温度或玻璃化转变温度为170〜500℃，其中具有多孔层的复合膜具有 渗透率为1.5×105〜20.O×10 5达西，熔融温度为160〜300℃，MD / TD收缩率在150℃的温度下为1〜40％，60分钟。

公开(公告)号：US20110033743A1

公开(公告)日：2011-02-10

申请号：US12936436

申请日：2009-04-08

申请人： Jean Lee ,  Jongmoon Sung ,  Yongkyoung Kim ,  Youngkeun Lee

发明人： Jean Lee ,  Jongmoon Sung ,  Yongkyoung Kim ,  Youngkeun Lee

IPC分类号： H01M2/16 ,  B32B5/32 ,  B32B15/085 ,  B05D5/12

CPC分类号： H01M2/1653 ,  H01M2/166 ,  H01M2/1686 ,  H01M10/052 ,  Y10T428/2495

摘要： Provided is a method of manufacturing a microporous polyolefin composite film with a thermally stable porous layer at high temperature, particularly, to a method of manufacturing a microporous polyolefin composite film with a thermally stable porous layer at high temperature, comprising preparing a polyolefin microporous film using a composition containing a polyolefin resin; coating a solution, in which a high heat-resistant resin is dissolved in a solvent, on one surface or both surfaces of the polyolefin microporous film; phase-separating the polyolefin microporous film coated with the solution by contacting with a nonsolvent after the coating; and drying the polyolefin microporous film so as to remove the solvent and nonsolvent remained after the phase-separating, and thus forming the thermally stable layer at high temperature.

摘要翻译： 提供一种在高温下制造具有热稳定性多孔层的微孔聚烯烃复合膜的方法，特别是涉及一种在高温下制备具有热稳定性多孔层的微孔聚烯烃复合膜的方法，其包括使用 含有聚烯烃树脂的组合物; 在聚烯烃微孔膜的一个表面或两个表面上涂布其中高耐热树脂溶解在溶剂中的溶液; 在涂布之后通过与非溶剂接触来分离涂布有溶液的聚烯烃微孔膜; 干燥聚烯烃微多孔膜，除去分相后残存的溶剂和非溶剂，由此在高温下形成热稳定层。