Method For Detecting Metal Impurities In Electrode Active Material

Abstract: The present invention relates to a method for detecting metal impurities in an electrode active material the method comprising the steps of: a first step of dissolving the electrode active material in an aqueous nitric acid solution to form a metal impurity extraction solution; a second step of plating the metal impurities from the metal impurity extraction solution onto an electrode; and a third step of measuring the content of the metal impurities plated on the electrode.

Patent Information

Application #

Filing Date

12 May 2025

Publication Number

27/2025

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION LTD.

Tower 1 108 Yeoui daero Yeongdeungpo gu Seoul 07335

SEOUL NATIONAL UNIVERSITY RAndDB FOUNDATION

1 Gwanak ro Gwanak gu Seoul 08826

Inventors

1. CHO A Ra

LG Energy Solution Research Park 188 Munji ro Yuseong gu Daejeon 34122

2. KIM Sang Woo

LG Energy Solution Research Park 188 Munji ro Yuseong gu Daejeon 34122

3. CHUNG Taek Dong

1 Gwanak ro Gwanak gu Seoul 08826

4. SHIM Woo Yeoul

1 Gwanak ro Gwanak gu Seoul 08826

5. WON Jung Hye

LG Energy Solution Research Park 188 Munji ro Yuseong gu Daejeon 34122

6. YOUN Yeu Young

LG Energy Solution Research Park 188 Munji ro Yuseong gu Daejeon 34122

Specification

Documents

Application Documents

#	Name	Date
1	202517045519-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [12-05-2025(online)].pdf	2025-05-12
2	202517045519-STATEMENT OF UNDERTAKING (FORM 3) [12-05-2025(online)].pdf	2025-05-12
3	202517045519-REQUEST FOR EXAMINATION (FORM-18) [12-05-2025(online)].pdf	2025-05-12
4	202517045519-PROOF OF RIGHT [12-05-2025(online)].pdf	2025-05-12
5	202517045519-PRIORITY DOCUMENTS [12-05-2025(online)].pdf	2025-05-12
6	202517045519-POWER OF AUTHORITY [12-05-2025(online)].pdf	2025-05-12
7	202517045519-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [12-05-2025(online)].pdf	2025-05-12
8	202517045519-FORM 18 [12-05-2025(online)].pdf	2025-05-12
9	202517045519-FORM 1 [12-05-2025(online)].pdf	2025-05-12
10	202517045519-DECLARATION OF INVENTORSHIP (FORM 5) [12-05-2025(online)].pdf	2025-05-12
11	202517045519-COMPLETE SPECIFICATION [12-05-2025(online)].pdf	2025-05-12
12	202517045519-RELEVANT DOCUMENTS [26-05-2025(online)].pdf	2025-05-26
13	202517045519-MARKED COPIES OF AMENDEMENTS [26-05-2025(online)].pdf	2025-05-26
14	202517045519-FORM 13 [26-05-2025(online)].pdf	2025-05-26
15	202517045519-AMMENDED DOCUMENTS [26-05-2025(online)].pdf	2025-05-26
16	202517045519-FORM 3 [15-10-2025(online)].pdf	2025-10-15