WO2026032656 - METHOD FOR RECYCLING A COATING INK FOR A LITHIUM BATTERY ELECTRODE
National phase entry is expected:
Publication Number
WO/2026/032656
Publication Date
12.02.2026
International Application No.
PCT/EP2025/070613
International Filing Date
18.07.2025
Title **
[English]
METHOD FOR RECYCLING A COATING INK FOR A LITHIUM BATTERY ELECTRODE
[French]
PROCEDE DE RECYCLAGE D'UNE ENCRE D'ENDUCTION POUR ELECTRODE DE BATTERIE AU LITHIUM
Applicants **
IFP ENERGIES NOUVELLES
Inventors
CLOUPET, Ann
DAUTRICHE, Bastien
GIREL, Etienne
FEUGNET, Frederic
PASQUIER, David
OBADIA, Mona Marie
HALTTUNEN, Niki
ALPHAZAN, Thibault
BELLINO, Christian
Priority Data
FR2408692
06.08.2024
FR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2196 | |
| EPO | Filing, Examination, Granting | 11201 | |
| Japan | Filing, Examination, Granting | 2366 | |
| South Korea | Filing, Examination, Granting | 2411 | |
| USA | Filing, Examination, Granting | 4940 |
Total:
23,114
Contact Us
Abstract[English]
The present invention relates to a method for recycling a coating ink for a lithium battery electrode comprising a mixture, in an organic solvent, of a cathode active material based on lithium metal oxides, of a binder and of an electron conductor. The recycling is carried out in particular by leaching in the presence of an aqueous sulfuric acid solution, followed by a step of co-precipitation of the metal sulfates of the cathode active material which are contained in the leachate. The precipitate obtained can subsequently be treated in order to be used as starting material in the refining of battery-grade sulfate salt.[French]
La présente invention concerne un procédé de recyclage d'une encre d'enduction pour électrode de batterie au lithium comprenant un mélange dans un solvant organique d'un matériau actif de cathode à base d'oxydes métalliques et de lithium, d'un liant et d'un conducteur électronique. Le recyclage est réalisé notamment par lixiviation en présence d'une solution aqueuse d'acide sulfurique suivie d'une étape de coprécipitation des sulfates métalliques du matériau actif de cathode contenus dans le lixiviat. Le précipitât obtenu peut être ensuite être traité pour être utilisé comme matière première pour le raffinage de sel de sulfate de grade batterie.