公开(公告)号：US20160149186A1

公开(公告)日：2016-05-26

申请号：US14918366

申请日：2015-10-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Hyungbae KIM ,  Jonghwan PARK ,  Byeonggyu CHO ,  Eungyeong LEE ,  Jinhyuk IN

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/1686 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/166 ,  H01M10/0525

Abstract: Provided are a separator having high heat resistance, a manufacturing method thereof and a secondary battery including the separator, which provides excellent dispersibility and reduced thermal shrinkage. The separator includes separator includes a porous base layer, and a coating layer formed on at least one surface of the base layer, wherein the coating layer includes inorganic particles and a binder, and the binder includes one selected from the group consisting of polyacrylic acid (PAA), polyacrylate or a mixture of polyacrylic acid (PAA) and polyacrylate, having a molecular weight of 100,000 to 1,000,000, as a first binder.

Abstract translation: 提供具有高耐热性的隔膜，其制造方法和包括隔膜的二次电池，其提供优异的分散性和降低的热收缩。 分离器包括分离器，其包括多孔基底层和形成在基底层的至少一个表面上的涂层，其中所述涂层包括无机颗粒和粘合剂，并且所述粘合剂包括选自聚丙烯酸（ PAA），聚丙烯酸酯或分子量为100,000〜1,000,000的聚丙烯酸（PAA）和聚丙烯酸酯的混合物作为第一粘合剂。

公开(公告)号：US20250149733A1

公开(公告)日：2025-05-08

申请号：US18968005

申请日：2024-12-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Gain KIM ,  Yongkyoung KIM ,  Jinwoo KIM ,  Hyungbae KIM

IPC: H01M50/431 ,  H01M50/403 ,  H01M50/443 ,  H01M50/446 ,  H01M50/449 ,  H01M50/46 ,  H01M50/491

Abstract: Provided is a battery substrate for separating positive electrode and negative electrode from each other in rechargeable battery including a substrate, and a coating layer disposed on at least one surface of the substrate, wherein the coating layer comprises inorganic particles and a first binder, and a ratio of an average particle diameter (D50) of the inorganic particles to an average particle diameter (D50) of the first binder is about 1.5:1 to about 2.5:1. When using the battery substrate, the adhesion to an electrode may be improved, thus leading to improved safety and lifetime characteristics of a battery.

公开(公告)号：US20160149187A1

公开(公告)日：2016-05-26

申请号：US14918454

申请日：2015-10-20

Applicant: Samsung SDI Co., Ltd.

Inventor： Byeonggyu CHO ,  Hyungbae KIM ,  Eungyeong LEE ,  Jinhyuk IN ,  Jonghwan PARK

IPC: H01M2/16 ,  H01M2/14

CPC classification number: H01M2/1686 ,  H01M2/145 ,  H01M2/166

Abstract: Provided are a separator having high heat resistance, a manufacturing method thereof and a secondary battery including the separator. The separator includes a porous base layer, and a coating layer formed on at least one surface of the base layer. Here, the coating layer includes 5 wt % to 25 wt % of polyvinyl alcohol (PVA) or derivatives thereof as a first binder and 75 wt % to 95 wt % of polyacrylic acid (PAA) or derivatives thereof as a second binder.

Abstract translation: 提供具有高耐热性的隔膜，其制造方法和包括隔膜的二次电池。 分离器包括多孔基底层和形成在基底层的至少一个表面上的涂层。 这里，涂层包含作为第一粘合剂的5重量％至25重量％的聚乙烯醇（PVA）或其衍生物，作为第二粘合剂的包含75重量％至95重量％的聚丙烯酸（PAA）或其衍生物。