公开(公告)号：US20190207171A1

公开(公告)日：2019-07-04

申请号：US15776248

申请日：2017-09-28

Applicant: LG CHEM, LTD.

Inventor： Yong-Su CHOI ,  Sang-Hun KIM ,  Min-Hyeong KANG ,  Yong KIM ,  Cho-Long KIM ,  Hyung-Kyun YU ,  Ji-Hoon LEE ,  Soo-Ji HWANG

IPC: H01M2/02 ,  H01M10/04 ,  H01M10/0585 ,  H01M2/08

Abstract: The present disclosure relates to a method for sealing a pouch casing of a pouch-type secondary battery, which includes the steps of: a receiving step in which an electrode assembly is received in an inner space formed between an upper pouch and a lower pouch; and a sealing step in which a first pressure is applied to an outer circumferential sealing portion, where the upper pouch and the lower pouch are sealed, in the longitudinal direction, and then the pressure is relieved, wherein the sealing step is carried out by applying external force to the upper pouch in the upward direction and to the lower pouch in the downward direction, or by applying a second pressure working in perpendicular to the first pressure to the sealing portion from the inner part of the pouch casing in a direction toward the outside.

公开(公告)号：US20170025648A1

公开(公告)日：2017-01-26

申请号：US15124812

申请日：2015-07-31

Applicant: LG CHEM, LTD.

Inventor： Hyung-Kyun YU ,  Sang-Hun KIM ,  Joo-Sung LEE ,  Soo-Ji HWANG ,  Won-Pill HWANG

IPC: H01M2/08 ,  H01M10/04 ,  H01M2/02

CPC classification number: H01M2/08 ,  H01M2/02 ,  H01M2/0275 ,  H01M2/0287 ,  H01M10/04 ,  H01M10/0431

Abstract: The present disclosure relates to a secondary battery pouch with an enhanced insulation property, and a method for manufacturing the same, and more specifically, to a secondary battery pouch for preventing occurrence of cracks in a sealing portion of a periphery of a pouch in a completed pouch-type secondary battery, particularly at a folded portion of the sealing portion, and a method for manufacturing the same.

Abstract translation: 本公开涉及具有增强的绝缘性能的二次电池袋及其制造方法，更具体地说，涉及一种二次电池袋，用于防止在完成的袋子的周围的密封部分中发生裂缝 袋型二次电池，特别是在密封部的折叠部分，以及其制造方法。

公开(公告)号：US20160118636A1

公开(公告)日：2016-04-28

申请号：US14895423

申请日：2014-10-31

Applicant: LG CHEM, LTD.

Inventor： Sun-Mi JIN ,  Hyung-Kyun YU ,  Joo-Sung LEE

IPC: H01M2/16 ,  H01M10/0525 ,  H01M2/14

Abstract: The present disclosure provides an organic/inorganic composite porous membrane, comprising: one or more particles selected from inorganic particles and organic particles; and a binder polymer, wherein said one or more particles selected from inorganic particles and organic particles are bonded with each other by the binder polymer surrounding the surface of the particles, and said one or more particles are filled at a rate of 60 to 70% in the membrane.

Abstract translation: 本公开内容提供了一种有机/无机复合多孔膜，包括：一种或多种选自无机颗粒和有机颗粒的颗粒; 和粘合剂聚合物，其中所述一种或多种选自无机颗粒和有机颗粒的颗粒通过围绕颗粒表面的粘合剂聚合物彼此粘合，并且所述一种或多种颗粒以60至70％的比例填充， 在膜中。

公开(公告)号：US20160013464A1

公开(公告)日：2016-01-14

申请号：US14771720

申请日：2014-10-31

Applicant: LG CHEM, LTD.

Inventor： Hyung-Kyun YU ,  Seok-Koo KIM ,  Bo-Kyung RYU ,  Jong-Hun KIM

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/1686 ,  C08J9/26 ,  C08J2201/0462 ,  C08J2205/044 ,  C08J2371/08 ,  C08J2379/08 ,  C08J2381/04 ,  C08J2381/06 ,  H01M2/14 ,  H01M2/145 ,  H01M2/16 ,  H01M2/1653 ,  H01M2/18 ,  H01M10/052

Abstract: The present disclosure provides a porous separator substrate with an inverse opal structure obtained by using an engineering plastic resin with high heat-resistance, and a manufacturing method thereof. In the method, a non-crosslinked polymer resin is used to form an opal structure and a crosslinked polymer resin is penetrated into the opal structure and an organic solvent is used to remove the polymer particles being used to form the opal structure, thereby manufacturing a porous substrate with an inverse opal structure. According to the present disclosure, a separator having good porosity and air permeability can be provided without the problems of heat-resistance decrease, pore closing and thickness decrease.

Abstract translation: 本公开内容提供了一种具有通过使用具有高耐热性的工程塑料树脂获得的反蛋白石结构的多孔隔板基板及其制造方法。 在该方法中，使用非交联聚合物树脂形成蛋白石结构，并且交联聚合物树脂渗入蛋白石结构中，并使用有机溶剂除去用于形成蛋白石结构的聚合物颗粒，从而制造 具有反蛋白石结构的多孔基材。 根据本公开，可以提供具有良好的孔隙率和透气性的隔膜，而不存在耐热性降低，孔闭合和厚度减小的问题。

公开(公告)号：US20150380706A1

公开(公告)日：2015-12-31

申请号：US14772321

申请日：2014-10-31

Applicant: LG CHEM, LTD.

Inventor： Hyung-Kyun YU ,  Sun-Mi JIN ,  Joo-Sung LEE ,  Bo-Kyung RYU

IPC: H01M2/16 ,  H01M2/14 ,  H01M10/058 ,  H01M10/0525

CPC classification number: H01M2/1673 ,  H01M2/145 ,  H01M2/1653 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/139 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  Y02T10/7011

Abstract: Disclosed is a method of manufacturing an electrode-separator composite: including (S1) coating an electrode active material slurry on at least one surface of an electrode current collector and drying to form an electrode, (S2) coating a polymer solution containing polymer particles on at least one surface of the electrode to form a separator coating layer, and (S3) drying the separator coating layer to form a porous separator, and an electrode-separator composite manufactured by the manufacturing method and a lithium secondary battery comprising the same.According to the present disclosure, a porous separator is manufactured by coating polymer particles on an electrode, thereby effectively controlling the uniformity and tortuosity of the pores, a porous separator is manufactured by directly coating a polymer solution on an electrode without separately manufacturing a separator, thereby saving the process costs and time, and further, when a functional group able to capture manganese is attached to the surface of polymer particles constituting a separator, deterioration in battery performance may be prevented through removal of manganese ions that may be deposited on an anode during operation of a battery.

Abstract translation: 公开了一种制造电极隔膜复合材料的方法，包括：（S1）在电极集电器的至少一个表面上涂覆电极活性材料浆料并干燥以形成电极;（S2）将含有聚合物颗粒的聚合物溶液涂覆在 所述电极的至少一个表面形成隔膜涂层，（S3）干燥所述隔膜涂层以形成多孔隔膜，以及通过所述制造方法制造的电极隔膜复合体和包含该多孔隔膜的锂二次电池。 根据本公开，通过在电极上涂布聚合物颗粒来制造多孔隔膜，从而有效地控制孔的均匀性和弯曲度，通过将聚合物溶液直接涂覆在电极上而不分开制造隔板来制造多孔隔膜， 从而节省了工艺成本和时间，此外，当能够捕获锰的官能团附着到构成隔板的聚合物颗粒的表面时，可以通过去除可能沉积在阳极上的锰离子来防止电池性能的劣化 在电池运行期间。