公开(公告)号：US20130287937A1

公开(公告)日：2013-10-31

申请号：US13816774

申请日：2011-08-12

申请人： Dong Jin Joo ,  Jang Weon Rhee ,  Jung Moon Sung ,  Je An Lee ,  Yong Kyoung Kim

发明人： Dong Jin Joo ,  Jang Weon Rhee ,  Jung Moon Sung ,  Je An Lee ,  Yong Kyoung Kim

IPC分类号： H01M2/14

CPC分类号： H01M2/145 ,  B01D67/0046 ,  B01D67/0079 ,  B01D69/12 ,  B01D2323/286 ,  B01D2325/20 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1686

摘要： Disclosed are a multi-layer composite porous film and a manufacturing method thereof. More particularly, a manufacturing method, which includes filling pores on at least one face of a polyolefin microporous film substrate using a solvent, and then, applying a coating solution that contains a polymer binder or the polymer binder and inorganic particles, to the film to form a porous coating layer, as well as the multi-layer composite porous film manufactured by the same, are disclosed. The method for manufacturing the multi-layer composite porous film according to the disclosure may provide a multi-layer composite porous film having excellent permeability and shutdown function, without clogging the pores, by improving a coating process. Moreover, if applying the foregoing porous film as a separator to a battery, the battery having superior performance and high safety may be manufactured.

摘要翻译： 公开了一种多层复合多孔膜及其制造方法。 更具体地，涉及一种制造方法，其包括使用溶剂在聚烯烃微孔膜基材的至少一个面上填充孔，然后将含有聚合物粘合剂或聚合物粘合剂和无机颗粒的涂布溶液涂布到膜上 形成多孔涂层，以及由其制造的多层复合多孔膜。 根据本公开的制造多层复合多孔膜的方法可以通过改进涂布工艺来提供具有优异的渗透性和关闭功能的多层复合多孔膜，而不堵塞孔。 此外，如果将上述多孔膜作为隔膜施加到电池，则可以制造具有优异性能和高安全性的电池。

公开(公告)号：US20070190304A1

公开(公告)日：2007-08-16

申请号：US11654450

申请日：2007-01-17

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B32B3/26

CPC分类号： B29C55/005 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2105/04 ,  C08J5/18 ,  C08J2323/06 ,  H01M2/1653 ,  Y10T428/249953

摘要： The present invention is related to microporous polyolefin films that may be used for battery separators and the methods of manufacturing the same. These microporous polyolefin films are characterized by being manufactured in a method comprising the steps of melt-extruding a composition, comprised of 20-50 weight % of a resin composition, comprised of 90-98 weight % of polyethylene (Component I) having a weight average molecular weight of 2×105˜4×105 and less than 5 weight % of molecules of which molecular weight is less than 1×104 and less than 5 weight % of molecules of which molecular weight is greater than 1×106, and 2-10 weight % of polypropylene (Component II) of which weight average molecular weight is 3.0×104˜8.0×105 and the peak of the melting point is higher than 145° C., and 80-50 weight % of a diluent (Component III), to mold in the form of sheets; stretching the above sheets to the form of films; extracting the diluent from the above films; and heat-setting the above films. They are also characterized by having a puncture strength of greater than 0.14 N/μm, Darcy's permeability constant of greater than 1.5×10−5 Darcy, shut-down temperature of microporous films of lower than 140° C., and melt-down temperature of higher than 160° C. They can enhance the performance and stability of batteries using them as well as the productivity of microporous films owing to their high thermal stability and superior extrusion compoundability and physical properties.

摘要翻译： 本发明涉及可用于电池隔板的微孔聚烯烃膜及其制造方法。 这些微孔聚烯烃膜的特征在于以下方法制造方法，该方法包括以下步骤：熔融挤出由20-50重量％的树脂组合物组成的组合物，该组合物由90-98重量％的具有重量的聚乙烯 分子量小于1×10 4的分子的平均分子量为2×10 5〜5×10 5〜5％，小于5重量％ 5重量％的分子量大于1×10 6的分子和2-10重量％的重均分子量为3.0×10 4的聚丙烯（组分II） >〜8.0×10 5，熔点高于145℃，80-50重量％的稀释剂（组分III），以片状成型; 将上述片材拉伸成薄膜形式; 从上述薄膜中提取稀释剂; 并对上述膜进行热定形。 它们的特征还在于穿刺强度大于0.14N / m，达西渗透率常数大于1.5×10 -5达西，微孔膜的停机温度低于140℃。 ，并且熔化温度高于160℃。由于其高热稳定性和优异的挤出复合性和物理性能，它们可以增强使用它们的电池的性能和稳定性以及微孔膜的生产率。

公开(公告)号：US20130224558A1

公开(公告)日：2013-08-29

申请号：US13702866

申请日：2011-06-10

申请人： Yong Kyoung Kim ,  Jang Weon Rhee ,  Dong Jin Joo ,  Je An Lee ,  Jung Moon Sung

发明人： Yong Kyoung Kim ,  Jang Weon Rhee ,  Dong Jin Joo ,  Je An Lee ,  Jung Moon Sung

IPC分类号： H01M2/16

CPC分类号： H01M2/1686 ,  C08J7/04 ,  C08J7/045 ,  C08J7/047 ,  C08J2323/02 ,  C08J2469/00 ,  C08J2481/06 ,  C08L23/02 ,  H01M2/166 ,  H01M10/052

摘要： Disclosed is a microporous composite film having a coating layer formed on at least one surface of a microporous polyolefin film, wherein the coating layer simultaneously includes a high thermostable polymer resin and inorganic particles. More specifically, the present invention relates to a microporous composite film in which an area shrinkage at 170° C. for 1 hr is 10% or less; a tensile modulus in each of a machine direction and a transverse direction at 130° C. is 0.5 MPa to 7.0 MPa; a ratio between permeability of a microporous composite film (CCSp) and permeability of a microporous polyolefin film (Sp) is 1.1≦CCSp/Sp≦3.5; and a permeability of the microporous composite film is 450 sec or less.

摘要翻译： 公开了一种微孔复合膜，其具有形成在微孔聚烯烃膜的至少一个表面上的涂层，其中涂层同时包括高耐热聚合物树脂和无机颗粒。 更具体地说，本发明涉及一种微孔复合膜，其中170℃下1小时的面积收缩率为10％以下; 在130℃下的纵向和横向各自的拉伸弹性模量为0.5MPa〜7.0MPa， 微孔复合膜（CCSp）的渗透率与微孔聚烯烃膜（Sp）的渗透率之比为1.1 @ CCSp / Sp @ 3.5; 并且微孔复合膜的渗透性为450秒以下。

公开(公告)号：US20070190303A1

公开(公告)日：2007-08-16

申请号：US11407631

申请日：2006-04-20

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B32B3/26

CPC分类号： B29C55/005 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2105/04 ,  C08J5/18 ,  C08J2323/06 ,  H01M2/1653 ,  Y10T428/249953

摘要： The present invention is related to microporous polyolefin films that may be used for battery separators and the methods of manufacturing the same. These microporous polyolefin films are characterized by being manufactured in a method comprising the steps of melt-extruding a composition, comprised of 20-50 weight % of a resin composition, comprised of 90-98 weight % of polyethylene (Component I) having a weight average molecular weight of 2×105-4×105 and less than 5 weight % of molecules of which molecular weight is less than 1×104 and less than 5 weight % of molecules of which molecular weight is greater than 1×106, and 2-10 weight % of polypropylene (Component II) of which weight average molecular weight is 3.0×104-8.0×105 and the peak of the melting point is higher than 145° C., and 80-50 weight % of a diluent (Component III), to mold in the form of sheets; stretching the above sheets to mold in the form of films; extracting the diluent from the above films; and heat-setting the above films. They are also characterized by having a puncture strength of greater than 0.14 N/μm, Darcy's permeability constant of greater than 1.5×10−5 Darcy, closing temperature of microporous films of lower than 140° C., and melt-down temperature of higher than 160° C. They can enhance the performance and stability of batteries using them as well as the productivity of microporous films owing to their high thermal stability and superior extrusion compoundability and physical properties.

摘要翻译： 本发明涉及可用于电池隔板的微孔聚烯烃膜及其制造方法。 这些微孔聚烯烃膜的特征在于以下方法制造方法，该方法包括以下步骤：熔融挤出由20-50重量％的树脂组合物组成的组合物，该组合物由90-98重量％的具有重量的聚乙烯 分子量小于1×10 4的分子的平均分子量为2×10 5〜5×10 5以下，小于5重量％ 5重量％的分子量大于1×10 6的分子和2-10重量％的重均分子量为3.0×10 4的聚丙烯（组分II） > -8.0×10 5，熔点高于145℃，80-50重量％稀释剂（组分III），以片状模塑; 拉伸上述片材以膜的形式模制; 从上述薄膜中提取稀释剂; 并对上述膜进行热定形。 它们的特征还在于具有大于0.14N / m 2的穿刺强度，达西渗透率常数大于1.5×10 -5达西，微孔膜的闭合温度低于140℃，以及 熔化温度高于160℃。由于其高热稳定性和优异的挤出复合性和物理性能，它们可以提高使用它们的电池的性能和稳定性以及微孔膜的生产率。

公开(公告)号：US20070138681A1

公开(公告)日：2007-06-21

申请号：US11406882

申请日：2006-04-19

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B29C65/00

CPC分类号： B29C55/005 ,  B01D53/228 ,  B01D67/0009 ,  B01D67/0027 ,  B01D69/02 ,  B01D71/26 ,  B01D2325/02 ,  B29K2023/065 ,  B29K2023/12 ,  B29K2105/04 ,  B29K2995/004 ,  C08J5/18 ,  C08J2323/04

摘要： Microporous films of the semicrystalline polymer resin according to the present invention are obtained by stretching semicrystalline polymer resin sheets extruded through a die by the phase separation between a semicrystalline polymer resin and a diluent, of which cross-section is comprised of a pore region and a non-crystalline region which is in the main matrix phase and is a swelling region swelled by the diluent, and extracting the diluent. The pore region has irregular sizes and shapes, has an average diameter of 0.01 (m to 2 (m, is connected in three dimensions, penetrates the thickness of the sheet, has gas permeability, has a volume ratio with respect to the volume of the entire resin composition of 10% to 40%. The swelled non-crystalline region has a swelling ratio of 200% or greater and is a region making minute cells of which average diameter is 0.01 (m to 1 (m as the region is split and cells are formed during the process of stretching. Thus manufactured microporous films are characterized by having a gas permeability of 1.3×10−5 Darcy or greater as well as *a puncture strength of 0.1 N/mm or greater even without tearing or breaking of the pores during the process of stretching.

摘要翻译： 根据本发明的半结晶聚合物树脂的微孔膜是通过将半结晶聚合物树脂和稀释剂之间的相分离拉伸通过模头挤出的半结晶聚合物树脂片而获得的，其截面由孔区域和 处于主基质相中的非结晶区域，并且是由稀释剂膨胀的溶胀区域，并且萃取稀释剂。 孔区域具有不规则的尺寸和形状，平均直径为0.01（m至2（m，三维连接，穿透片材的厚度，具有透气性，相对于体积的体积比） 整个树脂组成为10％至40％，膨胀非结晶区域的膨胀比为200％以上，是平均直径为0.01（m〜1（m，区域分割， 在拉伸过程中形成细胞，因此制造的微多孔膜的特征在于具有1.3×10-5达西或更高的气体渗透性以及* 0.1N / mm以上的穿刺强度，即使没有撕裂或破裂孔 在拉伸过程中。

公开(公告)号：US20090130547A1

公开(公告)日：2009-05-21

申请号：US12232579

申请日：2008-09-19

申请人： Young-Keun Lee ,  Sang-Hyun Park ,  Jang-Weon Rhee ,  Je-An Lee

发明人： Young-Keun Lee ,  Sang-Hyun Park ,  Jang-Weon Rhee ,  Je-An Lee

IPC分类号： H01M2/16 ,  B32B3/26

CPC分类号： C08L23/06 ,  C08K5/04 ,  C08L91/00 ,  Y10T428/249979 ,  C08L91/06

摘要： The present invention relates a microporous polyethylene film with improved mechanical strength, porosity, pore size and, particularly, improved surface energy, thereby having improved electrolyte wettability and being adequate for use as separators in high-capacity and long lifetime lithium secondary batteries. The microporous polyethylene film of the present invention is characterized by having a surface energy of at least 50 dynes/cm2, an air permeability (Darcy's permeability constant) of at least 2.0×10−5, a puncture strength of at least 0.17 N/m, a product of the air permeability and the puncture strength of at least 0.34×10−5 Darcy·N/m, a weighted average pore size of at least 30 nm, and a film shrinkage in the transverse and machine directions of not more than 5% at 105° C. for 10 minutes and not more than 15% at 120° C. for 60 minutes, respectively. The microporous polyethylene film is prepared by compounding raw materials in an extruder such that a thermodynamic single phase is formed above the temperature of liquid-liquid phase separation, inducing sufficient phase separation in a phase separation zone formed inside the extruder by controlling the temperature below the temperature of liquid-liquid phase separation, forming through a die, and carrying out plasma treatment in order to enhance surface energy.

摘要翻译： 本发明涉及具有改善的机械强度，孔隙率，孔径以及特别是改进的表面能的微孔聚乙烯膜，从而具有改善的电解质润湿性并且足以用作高容量和长寿命锂二次电池中的隔板。 本发明的微孔聚乙烯膜的特征在于具有至少50达因/厘米2的表面能，至少2.0×10 -5的透气性（达西渗透率常数），至少0.17N / m的穿刺强度， 透气度和穿刺强度的乘积为至少0.34×10-5达西/ N，加权平均孔径至少为30nm，横向和机器方向的膜收缩率不大于5％ 分别在105℃，10分钟，不超过15％，120℃，60分钟。 微孔聚乙烯膜通过在挤出机中配混原料制备，使得在液 - 液相分离温度之上形成热力学单相，在挤出机内形成的相分离区域中诱导足够的相分离，通过控制温度低于 液 - 液相分离的温度，通过模头形成，并进行等离子体处理以增强表面能。

公开(公告)号：US20070138682A1

公开(公告)日：2007-06-21

申请号：US11654724

申请日：2007-01-18

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B29C65/00

CPC分类号： B29C55/005 ,  B01D53/228 ,  B01D67/0009 ,  B01D67/0027 ,  B01D69/02 ,  B01D71/26 ,  B01D2325/02 ,  B29K2023/065 ,  B29K2023/12 ,  B29K2105/04 ,  B29K2995/004 ,  C08J5/18 ,  C08J2323/04

摘要： Microporous films of the semicrystalline polymer according to the present invention are obtained by stretching semicrystalline polymer sheets extruded through a die with the phase separation between a semicrystalline polymer resin and a diluent, of which sheet is comprised of a crystalline region, a pore region, and a non-crystalline region which is a swollen region swollen by the diluent, and extracting the diluent. The pore region has irregular sizes and shapes, has an average diameter of 0.01 μm to 2 μm, is connected in three dimensions, penetrates the thickness of the sheet, has gas permeability, and has a volume ratio with respect to the volume of the entire composition of 10% to 40%. The swollen non-crystalline region has a swelling ratio of 200% or greater and is a region making micropores of which average diameter is 0.1 μm to 1 μm as the region is split and pores are generated during the process of stretching. Thus manufactured microporous films are characterized by having a gas permeability of 1.3×10−5 Darcy or greater as well as a puncture strength of 0.1 N/μm or greater even without tearing destroying of the pores during stretching.

摘要翻译： 根据本发明的半结晶聚合物的微孔膜是通过拉伸通过半导体聚合物树脂和稀释剂之间的相分离的模头拉伸的半结晶聚合物片而获得的，其中片状物由结晶区域，孔区域和 是由稀释剂溶胀的溶胀区域，并且提取稀释剂的非结晶区域。 孔区具有不规则的尺寸和形状，平均直径为0.01μm至2μm，三维连接，穿透片材的厚度，具有透气性，并且具有相对于整个体积的体积比 组成为10％至40％。 膨胀非结晶区域的膨胀率为200％以上，并且是在拉伸过程中产生区域的同时产生平均直径为0.1〜1μm的微孔的区域，并且产生孔。 这样制造的微多孔膜的特征在于，即使在拉伸过程中也不破坏孔隙，气体渗透率为1.3×10 -5达西以上，穿刺强度为0.1N / m 2以上。

公开(公告)号：US20070092705A1

公开(公告)日：2007-04-26

申请号：US10545203

申请日：2005-06-18

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Jung-Moon Sung ,  Byoung-Cheon Jo ,  Chol-Ho Lee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Jung-Moon Sung ,  Byoung-Cheon Jo ,  Chol-Ho Lee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B32B27/32

CPC分类号： C08J5/18 ,  C08J2323/06 ,  H01M2/1653

摘要： Disclosed in the present invention are a microporous polyethylene film and a method of manufacture thereof. The polyethylene microporous film manufactured according to the present invention may contribute to an increased productivity of stable products as its extrusion and stretching may be done readily. And thus manufactured product may be used for battery separators and various filters owing to its high gas permeability, superior puncture strength, and small ratio of shrinkage.

摘要翻译： 本发明公开了一种微孔聚乙烯薄膜及其制造方法。 根据本发明制造的聚乙烯微孔膜可以有助于提高稳定产品的生产率，因为其挤出和拉伸可以容易地进行。 因此，由于其高透气性，优异的穿刺强度和较小的收缩率，因此制造的产品可用于电池隔板和各种过滤器。

公开(公告)号：US09564624B2

公开(公告)日：2017-02-07

申请号：US13702866

申请日：2011-06-10

申请人： Yong Kyoung Kim ,  Jang Weon Rhee ,  Dong Jin Joo ,  Je An Lee ,  Jung Moon Sung

发明人： Yong Kyoung Kim ,  Jang Weon Rhee ,  Dong Jin Joo ,  Je An Lee ,  Jung Moon Sung

IPC分类号： H01M2/16 ,  C08L23/02 ,  C08J7/04 ,  H01M10/052

CPC分类号： H01M2/1686 ,  C08J7/04 ,  C08J7/045 ,  C08J7/047 ,  C08J2323/02 ,  C08J2469/00 ,  C08J2481/06 ,  C08L23/02 ,  H01M2/166 ,  H01M10/052

摘要： Disclosed is a microporous composite film having a coating layer formed on at least one surface of a microporous polyolefin film, wherein the coating layer simultaneously includes a high thermostable polymer resin and inorganic particles. More specifically, the present invention relates to a microporous composite film in which an area shrinkage at 170° C. for 1 hr is 10% or less; a tensile modulus in each of a machine direction and a transverse direction at 130° C. is 0.5 MPa to 7.0 MPa; a ratio between permeability of a microporous composite film (CCSp) and permeability of a microporous polyolefin film (Sp) is 1.1≦CCSp/Sp≦3.5; and a permeability of the microporous composite film is 450 sec or less.

摘要翻译： 公开了一种微孔复合膜，其具有形成在微孔聚烯烃膜的至少一个表面上的涂层，其中涂层同时包括高耐热聚合物树脂和无机颗粒。 更具体地说，本发明涉及一种微孔复合膜，其中170℃下1小时的面积收缩率为10％以下; 在130℃下的纵向和横向各自的拉伸弹性模量为0.5MPa〜7.0MPa， 微孔复合膜（CCSp）的渗透率与微孔聚烯烃膜（Sp）的渗透率之比为1.1≤CCSp/Sp≤3.5; 并且微孔复合膜的渗透性为450秒以下。

公开(公告)号：US08323547B2

公开(公告)日：2012-12-04

申请号：US11753174

申请日：2007-05-24

申请人： Young-Keun Lee ,  Jang-Weon Rhee ,  Jung-Moon Sung ,  Byoung-Cheon Jo ,  Chol-Ho Lee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

发明人： Young-Keun Lee ,  Jang-Weon Rhee ,  Jung-Moon Sung ,  Byoung-Cheon Jo ,  Chol-Ho Lee ,  Gwi-Gwon Kang ,  In-Hwa Jung ,  Je-An Lee

IPC分类号： B29C51/00 ,  D02J1/22 ,  C08J9/00 ,  C08J5/18

CPC分类号： C08J5/18 ,  C08J2323/04 ,  C08K5/04 ,  H01M2/1653

摘要： Disclosed in the present invention are a microporous polyethylene film and a method of manufacture thereof. The polyethylene microporous film manufactured according to the present invention may contribute to an increased productivity of stable products as its extrusion and stretching may be done readily. And thus manufactured product may be used for battery separators and various filters owing to its high gas permeability, superior puncture strength, and small ratio of shrinkage.

摘要翻译： 本发明公开了一种微孔聚乙烯薄膜及其制造方法。 根据本发明制造的聚乙烯微孔膜可以有助于提高稳定产品的生产率，因为其挤出和拉伸可以容易地进行。 因此，由于其高透气性，优异的穿刺强度和较小的收缩率，因此制造的产品可用于电池隔板和各种过滤器。