Extract from the Register of European Patents

EP About this file: EP4520725

EP4520725 - POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE, AND RECHARGEABLE LITHIUM BATTERIES [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  07.02.2025
Database last updated on 30.03.2026
Most recent event   Tooltip06.09.2025Amendment by applicant 
Applicant(s)For all designated states
SAMSUNG SDI CO., LTD.
150-20 Gongse-ro
Giheung-gu
Yongin-si, Gyeonggi-do
17084 / KR
[2025/11]
Inventor(s)01 / KANG, Byungwuk
17084 Yongin-si / KR
02 / KIM, Young-Ki
17084 Yongin-si / KR
03 / DOO, Sungwook
17084 Yongin-si / KR
04 / CHOO, Sung Ho
17084 Yongin-si / KR
05 / JUN, Dowook
17084 Yongin-si / KR
06 / KANG, Gwiwoon
17084 Yongin-si / KR
07 / JEONG, Jaeyong
17084 Yongin-si / KR
08 / KONG, Youngsun
17084 Yongin-si / KR
09 / YOON, Jaesang
17084 Yongin-si / KR
10 / KANG, Seok Mun
17084 Yongin-si / KR
 [2025/11]
Representative(s)Marks & Clerk LLP
15 Fetter Lane
London EC4A 1BW / GB
[2025/11]
Application number, filing date24196026.922.08.2024
[2025/11]
Priority number, dateKR2023011155324.08.2023         Original published format: KR 20230111553
[2025/11]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4520725
Date:12.03.2025
Language:EN
[2025/11]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.2025
ClassificationIPC:C01G53/50, H01M4/131, H01M4/36, H01M4/525
[2025/11]
CPC:
C01G53/50 (EP); H01M4/366 (EP,CN,KR,US); H01M4/525 (EP,CN,KR,US);
C01G53/04 (US); C01G53/44 (KR); H01M10/052 (CN,KR);
H01M10/0525 (US); H01M4/0404 (US); H01M4/0471 (US);
H01M4/131 (EP,CN,KR); H01M4/364 (CN); H01M4/485 (CN);
H01M4/505 (EP,KR,US); C01P2002/85 (CN); C01P2004/03 (CN);
C01P2004/04 (CN); C01P2004/61 (EP,US); C01P2004/84 (EP);
C01P2006/10 (US); C01P2006/40 (CN); H01M2004/021 (CN,KR,US);
H01M2004/028 (CN,KR); H01M2220/30 (US); Y02E60/10 (EP,KR) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2025/11]
Extension statesBANot yet paid
Validation statesGENot yet paid
KHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:AKTIVES MATERIAL FÜR POSITIVE ELEKTRODEN, VERFAHREN ZU DESSEN HERSTELLUNG, POSITIVE ELEKTRODE UND WIEDERAUFLADBARE LITHIUMBATTERIEN[2025/11]
English:POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE, AND RECHARGEABLE LITHIUM BATTERIES[2025/11]
French:MATÉRIAU ACTIF POUR ÉLECTRODE POSITIVE, MÉTHODE DE PRÉPARATION, ÉLECTRODE POSITIVE ET BATTERIES RECHARGEABLES AU LITHIUM[2025/11]
Examination procedure22.08.2024Examination requested  [2025/11]
05.09.2025Amendment by applicant (claims and/or description)
05.09.2025Date on which the examining division has become responsible
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Documents cited:Search[I] WO2022240129  (LG CHEMICAL LTD et al.) [I] 1-15 * example -; claim - *
 [A] US2023083478  (WU QI et al.) [A] 1-15 * claim -; table - *
 [A] US2017346133  (JE HYUN-JOO et al.) [A] 1-15 * claim - *
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