公开(公告)号：EP4190887A1

公开(公告)日：2023-06-07

申请号：EP20947049.1

申请日：2020-07-29

Applicant: LG Electronics Inc.

Inventor： PARK, Koun ,  LEE, Hongcheol ,  KANG, Eunseck ,  JUNG, Kyungho ,  CHO, Sanggeun ,  LEE, Juchul ,  LEE, Misun ,  LIM, Eunja

IPC: C12M1/12 ,  C02F1/28 ,  B01D39/18

Abstract: The method for producing a nanocellulose support comprises coating a container with surface-treated nanocellulose solution, forming a nanocellulose thin film by drying the coated nanocellulose solution, and modifying the surface properties of the nanocellulose thin film by means of electron beam irradiation. According to an embodiment, the production of nanocellulose supports using the drying method allows substrates of various shapes to be coated and has simple processes, thus allowing mass production and production of over-sized supports.

公开(公告)号：EP4152506A1

公开(公告)日：2023-03-22

申请号：EP21805248.8

申请日：2021-05-11

Applicant: LG Electronics, Inc.

Inventor： LIM, Eunja ,  LEE, Hongcheol ,  KANG, Eunseck ,  LEE, Juchul ,  PARK, Koun ,  LEE, Misun

IPC: H01M50/429 ,  H01M50/449 ,  H01M50/403 ,  C09D101/08 ,  C09D7/65 ,  H01M50/431 ,  B01D67/00 ,  B01D71/26 ,  B01D71/10 ,  B01D71/02

Abstract: The present invention can be applied to a technical field related to secondary batteries, and, for example, a separator structure for a lithium ion secondary battery, a manufacturing method therefor, and a secondary battery using same. The present invention relates to a separator structure provided inside a secondary battery, the structure being capable of comprising: a porous support comprising a first surface and a second surface; and an ion surface-treated nanocellulose fiber placed on the first surface and/or the second surface of the support.