Global Patent Index - EP 4058621 A1

EP 4058621 A1 20220921 - METHODS FOR THE ALKALIZATION OR REALKALIZATION OF AN ACTIVE ELECTRODE MATERIAL

Title (en)

METHODS FOR THE ALKALIZATION OR REALKALIZATION OF AN ACTIVE ELECTRODE MATERIAL

Title (de)

VERFAHREN ZUR ALKALISIERUNG ODER REALKALISIERUNG EINES AKTIVEN ELEKTRODENMATERIALS

Title (fr)

PROCÉDÉS POUR L'ALCALINATION OU LA RÉALCALINATION D'UN MATÉRIAU ACTIF D'ÉLECTRODE

Publication

EP 4058621 A1 20220921 (FR)

Application

EP 20887315 A 20201113

Priority

  • US 201962934782 P 20191113
  • CA 2020051547 W 20201113

Abstract (en)

[origin: WO2021092692A1] Methods are described for the direct or indirect electrochemical alkalization of an alkali metal-deficient electrochemically active material. The methods involve an electrolysis step during the alkalization of the alkali metal-deficient electrochemically active material on an electrode current collector (direct alkalization) or during the regeneration of a reducing agent used for the alkalization of the electrochemically active material (indirect alkalization).

IPC 8 full level

C25C 1/02 (2006.01); H01M 4/136 (2010.01); H01M 4/1397 (2010.01)

CPC (source: EP KR US)

C25B 3/01 (2021.01 - EP); H01M 4/0404 (2013.01 - EP KR US); H01M 4/0452 (2013.01 - US); H01M 4/0459 (2013.01 - EP KR); H01M 4/131 (2013.01 - EP); H01M 4/1391 (2013.01 - EP KR); H01M 4/1397 (2013.01 - KR); H01M 4/5825 (2013.01 - EP KR US); H01M 4/622 (2013.01 - EP); H01M 4/623 (2013.01 - EP KR US); H01M 4/625 (2013.01 - EP KR US); H01M 10/052 (2013.01 - KR); H01M 10/0525 (2013.01 - KR US); H01M 2004/028 (2013.01 - EP KR); H01M 2220/10 (2013.01 - KR); H01M 2220/20 (2013.01 - KR US); H01M 2220/30 (2013.01 - KR US); Y02E 60/10 (2013.01 - EP)

Citation (search report)

See references of WO 2021092692A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2021092692 A1 20210520; CA 3157867 A1 20210520; CN 114729462 A 20220708; EP 4058621 A1 20220921; JP 2023502220 A 20230123; KR 20220099992 A 20220714; US 2022393146 A1 20221208

DOCDB simple family (application)

CA 2020051547 W 20201113; CA 3157867 A 20201113; CN 202080078863 A 20201113; EP 20887315 A 20201113; JP 2022527115 A 20201113; KR 20227019145 A 20201113; US 202017770817 A 20201113