METHOD FOR RECONDITIONING LITHIUM-CONTAINING ENERGY ACCUMULATORS
Abstract
The present invention relates to a method for reconditioning lithium-containing energy accumulators, the method comprising at least the following method steps: i) possibly pretreating the lithium-containing energy accumulator, with the pretreatment comprising at least one of the following: thermal, mechanical and electrical pretreatment; ii) pyrolyzing the possibly pretreated lithium-containing energy accumulator, with the release of carbon dioxide, and with at least partial carbonation, under a carbon-dioxide atmosphere, of the lithium contained; iii) separating lithium in a separating step; and iv) hydrometallurgically reconditioning the mixture obtained in method step iii), with further carbonation of the lithium contained and with separation of lithium in a further separating step, with v) carbon dioxide released in method step ii) being returned in at least one of method steps ii) and iii).
Inventors 2
- Lilian Schwich Aachen author as filed: Schwich, Lilian
- Paul Sabarny Aachen author as filed: Sabarny, Paul
Inventors are linked to an Aachen author when surname and first name match exactly one author.
Applicants
- CYLIB GMBH
- RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE AACHEN, KÖRPERSCHAFT DES ÖFFENTLICHEN RECHTS RWTH Aachen University
Cited papers 1 in the database
Non-patent literature as cited (3)
- [XYI] - BINDER JAN O. ET AL: "A Rapid and Facile Approach for the Recycling of High-Performance LiNi 1- x - y Co x Mn y O 2 Active Materials", CHEMSUSCHEM, vol. 14, no. 1, 10 September 2020 (2020-09-10), DE, pages 441 - 448, XP093093972, ISSN: 1864-5631, Retrieved from the Internet <URL:https://onlinelibrary.wiley.com/doi/full-xml/10.1002/cssc.202001915> DOI: 10.1002/cssc.202001915
- [XYI] - SCHWICH LILIAN ET AL: "Early-Stage Recovery of Lithium from Tailored Thermal Conditioned Black Mass Part I: Mobilizing Lithium via Supercritical CO2-Carbonation", METALS, vol. 11, no. 177, 20 January 2021 (2021-01-20), pages 1 - 30, XP093093992, DOI: 10.3390/met11020177
- - YI CHENXING ET AL: "Technology for recycling and regenerating graphite from spent lithium-ion batteries", CHINESE JOURNAL OF CHEMICAL ENGINEERING, CHEMICAL INDUSTRY PRESS, BEIJING, CN, vol. 39, 25 September 2021 (2021-09-25), pages 37 - 50, XP086894155, ISSN: 1004-9541, [retrieved on 20210925], DOI: 10.1016/J.CJCHE.2021.09.014