Separator For Electrochemical Device And Electrochemical Device

Separator For Electrochemical Device And Electrochemical Device Including The Same

Abstract: The present invention pertains to a separator for an electrochemical device, and an electrochemical device comprising same. The separator for an electrochemical device is disposed on a negative electrode containing a silicon (Si)-based active material. The separator comprises: a porous polymer substrate; a first coating layer that is disposed on at least one surface of the porous polymer substrate and contains a first polymer resin; and a second coating layer that is disposed on the first coating layer and contains a second polymer resin and inorganic particles, and the solubility of the first polymer resin in an electrolyte is higher than the solubility of the second polymer resin in the electrolyte.

Patent Information

Application #

Filing Date

22 October 2024

Publication Number

06/2025

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION, LTD.

Tower1, Yeoui-daero 108 Yeongdeungpo-gu, Seoul 07335

Inventors

1. SHIN, Jin Young

188, Munji-ro Yuseong-gu, Daejeon Daejeon 34122

2. JEONG, So Mi

188, Munji-ro Yuseong-gu, Daejeon Daejeon 34122

3. BANG, Ji Hyun

188, Munji-ro Yuseong-gu, Daejeon Daejeon 34122

4. BAE, Won Sik

188, Munji-ro Yuseong-gu, Daejeon Daejeon 34122

Specification

Documents

Application Documents

#	Name	Date
1	202417080149-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [22-10-2024(online)].pdf	2024-10-22
2	202417080149-STATEMENT OF UNDERTAKING (FORM 3) [22-10-2024(online)].pdf	2024-10-22
3	202417080149-REQUEST FOR EXAMINATION (FORM-18) [22-10-2024(online)].pdf	2024-10-22
4	202417080149-PROOF OF RIGHT [22-10-2024(online)].pdf	2024-10-22
5	202417080149-POWER OF AUTHORITY [22-10-2024(online)].pdf	2024-10-22
6	202417080149-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [22-10-2024(online)].pdf	2024-10-22
7	202417080149-FORM 18 [22-10-2024(online)].pdf	2024-10-22
8	202417080149-FORM 1 [22-10-2024(online)].pdf	2024-10-22
9	202417080149-FIGURE OF ABSTRACT [22-10-2024(online)].pdf	2024-10-22
10	202417080149-DRAWINGS [22-10-2024(online)].pdf	2024-10-22
11	202417080149-DECLARATION OF INVENTORSHIP (FORM 5) [22-10-2024(online)].pdf	2024-10-22
12	202417080149-COMPLETE SPECIFICATION [22-10-2024(online)].pdf	2024-10-22
13	202417080149-certified copy of translation [23-01-2025(online)].pdf	2025-01-23
14	202417080149-FORM 3 [16-04-2025(online)].pdf	2025-04-16