公开(公告)号：US10916754B2

公开(公告)日：2021-02-09

申请号：US14840875

申请日：2015-08-31

申请人： LG Chem, Ltd. ,  Toray Industries, Inc.

发明人： Jong-Hun Kim ,  Sang-Young Lee ,  Pil-Kyu Park ,  Jang-Hyuk Hong ,  Byoung-Jin Shin ,  In-Chul Kim

IPC分类号： H01M2/16 ,  H01M2/14 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/052

摘要： A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a binder and a plurality of inorganic particles, wherein the binder includes a crosslinked binder. This separator may improve high temperature cycle performance, discharge characteristics and thermal resistance of an electrochemical device since the separator exhibits improved insolubility and impregnation to electrolyte and improved thermal resistance.

公开(公告)号：US10135053B2

公开(公告)日：2018-11-20

申请号：US14452787

申请日：2014-08-06

申请人： LG Chem, Ltd.

发明人： Joo-Sung Lee ,  Byoung-Jin Shin ,  Dong-Wook Sung ,  Jong-Hun Kim

IPC分类号： H01M2/16 ,  H01M2/14 ,  B29C47/00 ,  B29C55/06 ,  B29C71/02 ,  B29C55/00 ,  B29C47/14 ,  B29C47/20 ,  B29C47/40 ,  B29C47/92 ,  B29K23/00 ,  B29K105/00 ,  B29K105/04

摘要： Disclosed is a method of manufacturing a porous separator including an elastic material, and a separator manufactured by the method. The separator includes an elastic material being uniformly dispersed in a polymer at a weight ratio of 40:60 to 5:95, and a value of elongation at break in a low tensile strength direction at room temperature is greater than or equal to 250%. In addition, the method of manufacturing a porous separator includes forming an extruded sheet by extruding a mixture of a polymer and an elastic material at a weight ratio of 95:5 to 60:40, forming a film by annealing and stretching the extruded sheet, and forming a porous separator by heat setting the stretched film. Accordingly, a thermal shrinkage ratio of the film is reduced and an elongation at break is greatly increased, to provide a porous separator with improved stability.

公开(公告)号：US10002719B2

公开(公告)日：2018-06-19

申请号：US14691085

申请日：2015-04-20

申请人： LG Chem, Ltd. ,  TORAY INDUSTRIES, INC.

发明人： Jeong-Min Ha ,  Su-Jin Yoon ,  Jong-Hun Kim ,  Byoung-Jin Shin ,  Joo-Sung Lee ,  Jin-Woo Kim ,  Da-Kyung Han

IPC分类号： H01G11/52 ,  H01M2/16 ,  H01M10/052 ,  H01M2/14 ,  H01M8/0239 ,  H01M8/0245

CPC分类号： H01G11/52 ,  H01M2/145 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/1686 ,  H01M8/0239 ,  H01M8/0245 ,  H01M10/052 ,  Y02E60/13

摘要： The present disclosure provides a separator comprising a porous substrate, a porous coating layer and a binder layer, the binder comprising at least one homopolymer of polyvinylidene fluoride and at least one copolymer of polyvinylidene fluoride (PVDF)-co-hexafluoropropylene (HFP) so that a content difference of hexafluoropropylene (HFP) present in the two compounds is about 3 wt % or higher.

公开(公告)号：US20150303003A1

公开(公告)日：2015-10-22

申请号：US14691085

申请日：2015-04-20

申请人： LG Chem, Ltd.

发明人： Jeong-Min Ha ,  Su-Jin Yoon ,  Jong-Hun Kim ,  Byoung-Jin Shin ,  Joo-Sung Lee ,  Jin-Woo Kim ,  Da-Kyung Han

IPC分类号： H01G11/52 ,  H01M10/052 ,  B05D3/04 ,  H01M8/02 ,  H01G9/20 ,  H01M2/16 ,  H01M2/14

CPC分类号： H01G11/52 ,  H01M2/145 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/1686 ,  H01M8/0239 ,  H01M8/0245 ,  H01M10/052 ,  Y02E60/13

摘要： The present disclosure provides a separator comprising a porous substrate, a porous coating layer and a binder layer, the binder comprising at least one homopolylmer of polyvinylidene fluoride and at least one copolymer of polyvinylidene fluoride (PVDF)-co-hexafluoropropylene (HFP) so that a content difference of hexafluoropropylene (HFP) present in the two compounds is about 3 wt % or higher.

摘要翻译： 本公开提供了一种分离器，其包括多孔基材，多孔涂层和粘合剂层，所述粘合剂包含至少一种聚偏二氟乙烯的均聚物和至少一种聚偏二氟乙烯（PVDF） - 六氟丙烯（HFP）的共聚物，使得 两种化合物中存在的六氟丙烯（HFP）的含量差为约3重量％以上。

公开(公告)号：US20140342238A1

公开(公告)日：2014-11-20

申请号：US14452787

申请日：2014-08-06

申请人： LG CHEM, LTD.

发明人： Joo-Sung Lee ,  Byoung-Jin Shin ,  Dong-Wook Sung ,  Jong-Hun Kim

IPC分类号： H01M2/16 ,  B29C71/02 ,  B29C55/06 ,  H01M2/14 ,  B29C47/00

CPC分类号： H01M2/1653 ,  B29C47/0011 ,  B29C47/0019 ,  B29C47/0057 ,  B29C47/14 ,  B29C47/20 ,  B29C47/40 ,  B29C47/92 ,  B29C55/005 ,  B29C55/06 ,  B29C71/02 ,  B29C2071/022 ,  B29C2947/92704 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2105/0088 ,  B29K2105/04 ,  B29K2995/0051 ,  H01M2/145

摘要： Disclosed is a method of manufacturing a porous separator including an elastic material, and a separator manufactured by the method. The separator includes an elastic material being uniformly dispersed in a polymer at a weight ratio of 40:60 to 5:95, and a value of elongation at break in a low tensile strength direction at room temperature is greater than or equal to 250%. In addition, the method of manufacturing a porous separator includes forming an extruded sheet by extruding a mixture of a polymer and an elastic material at a weight ratio of 95:5 to 60:40, forming a film by annealing and stretching the extruded sheet, and forming a porous separator by heat setting the stretched film. Accordingly, a thermal shrinkage ratio of the film is reduced and an elongation at break is greatly increased, to provide a porous separator with improved stability.

摘要翻译： 公开了一种制造包括弹性材料的多孔分离器的方法和通过该方法制造的隔膜。 分离器包括以40:60至5:95的重量比均匀分散在聚合物中的弹性材料，室温下低拉伸强度方向的断裂伸长率值大于或等于250％。 另外，多孔隔膜的制造方法包括以95:5〜60:40的重量比挤出聚合物和弹性材料的混合物来形成挤出片材，通过退火和拉伸挤出片材形成膜， 并通过热定形拉伸膜形成多孔分离器。 因此，膜的热收缩率降低，断裂伸长率大大增加，从而提供具有改善的稳定性的多孔隔膜。

公开(公告)号：US09666849B2

公开(公告)日：2017-05-30

申请号：US13621399

申请日：2012-09-17

申请人： LG Chem, Ltd. ,  Toray Battery Separator Film Co., Ltd.

发明人： Jeong-Min Ha ,  Kee-Young Kim ,  Byeong-Gyu Cho ,  Sun-Mi Jin ,  No-Ma Kim ,  Jong-Hun Kim ,  Byoung-Jin Shin

IPC分类号： H01M2/16 ,  H01M10/0525

CPC分类号： H01M2/166 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

摘要： A separator may include (A) a porous substrate having pores, and (B) a porous coating layer formed on at least one surface of the porous substrate and made from a mixture of inorganic particles and a binder polymer, and the binder polymer may contain a copolymer of (a) a first monomer unit with at least one of an amine group and an amide group at a side chain, and (b) a second monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms. The porous coating layer of the separator may have a high packing density, thereby easily forming a thin film battery without hindering safety, and may have good adhesive strength with the porous substrate, thereby preventing detachment of the inorganic particles in the porous coating layer during assembly of an electrochemical device.

公开(公告)号：US09786890B2

公开(公告)日：2017-10-10

申请号：US13903195

申请日：2013-05-28

申请人： LG Chem, Ltd. ,  TORAY INDUSTRIES, INC.

发明人： Byeong-Gyu Cho ,  Jeong-Min Ha ,  Su-Jin Yoon ,  Jong-Hun Kim ,  Byoung-Jin Shin

IPC分类号： H01M2/16 ,  H01M2/18 ,  H01M10/052

CPC分类号： H01M2/1686 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/18 ,  H01M10/052 ,  Y02E60/122 ,  Y10T29/49108

摘要： The present invention provides a separator having a porous substrate; and a porous coating layer formed on one surface of the porous substrate and comprising a mixture of inorganic particles and a binder polymer, which has a value of a porosity×an air permeability per thickness in the range of 5 to 40, the porosity and the air permeability per thickness. The separator having a porous coating layer according to the present invention has a porosity which is controlled depending on the air permeability of the porous substrate, and thus exhibit superior ionic conductivity as well as good mechanical properties, thereby contributing to improve the performance and safety of an electrochemical device.

公开(公告)号：US20130260208A1

公开(公告)日：2013-10-03

申请号：US13903195

申请日：2013-05-28

申请人： LG Chem, Ltd.

发明人： Byeong-Gyu Cho ,  Jeong-Min Ha ,  Su-Jin Yoon ,  Jong-Hun Kim ,  Byoung-Jin Shin

IPC分类号： H01M2/16

CPC分类号： H01M2/1686 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/18 ,  H01M10/052 ,  Y02E60/122 ,  Y10T29/49108

摘要： The present invention provides a separator having a porous substrate; and a porous coating layer formed on one surface of the porous substrate and comprising a mixture of inorganic particles and a binder polymer, which has a value of a porosity×an air permeability per thickness in the range of 5 to 40, the porosity and the air permeability per thickness. The separator having a porous coating layer according to the present invention has a porosity which is controlled depending on the air permeability of the porous substrate, and thus exhibit superior ionic conductivity as well as good mechanical properties, thereby contributing to improve the performance and safety of an electrochemical device.

摘要翻译： 本发明提供一种具有多孔基材的隔膜; 以及形成在所述多孔基材的一个表面上并且包含无机颗粒和粘合剂聚合物的混合物的多孔涂层，所述无机颗粒和粘合剂聚合物的孔隙率×每厚度的透气度为5至40，孔隙率和 每个厚度的透气度。 具有根据本发明的多孔涂层的隔膜具有根据多孔基材的透气性控制的孔隙率，因此表现出优异的离子导电性以及良好的机械性能，从而有助于提高其性能和安全性 电化学装置。

公开(公告)号：US20130017429A1

公开(公告)日：2013-01-17

申请号：US13621399

申请日：2012-09-17

申请人： LG Chem, Ltd.

发明人： Jeong-Min Ha ,  Kee-Young Kim ,  Byeong-Gyu Cho ,  Sun-Mi Jin ,  No-Ma Kim ,  Jong-Hun Kim ,  Byoung-Jin Shin

IPC分类号： H01M2/16

CPC分类号： H01M2/166 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

摘要： A separator may include (A) a porous substrate having pores, and (B) a porous coating layer formed on at least one surface of the porous substrate and made from a mixture of inorganic particles and a binder polymer, and the binder polymer may contain a copolymer of (a) a first monomer unit with at least one of an amine group and an amide group at a side chain, and (b) a second monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms. The porous coating layer of the separator may have a high packing density, thereby easily forming a thin film battery without hindering safety, and may have good adhesive strength with the porous substrate, thereby preventing detachment of the inorganic particles in the porous coating layer during assembly of an electrochemical device.

摘要翻译： 分离器可以包括（A）具有孔的多孔基材和（B）多孔基材的至少一个表面上形成并由无机颗粒和粘合剂聚合物的混合物制成的多孔涂层，并且粘合剂聚合物可以包含 （a）第一单体单元与侧链中的胺基和酰胺基中的至少一个的共聚物，和（b）具有碳原子数为1〜14的烷基的（甲基）丙烯酸酯的第二单体单元 。 分离器的多孔涂层可以具有高的填充密度，从而容易地形成薄膜电池而不会妨碍安全性，并且可以与多孔基材具有良好的粘合强度，从而防止组装期间多孔涂层中的无机颗粒脱离 的电化学装置。