The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2020
Filed:
Jan. 05, 2018
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Byron Konstantinos Antonopoulos, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A method is provided for forming a negative electrode for a lithium-ion cell. The method include the steps of: carrying out first constant-current charging with a first charging current until a first half-cell potential with regard to a reference electrode is reached; carrying out first constant-voltage charging at the first half-cell potential with regard to the reference electrode until a second charging current is reached; carrying out AC voltage excitation or alternating current excitation over a frequency time period; carrying out second constant-current charging with a third charging current until a second half-cell potential with regard to the reference electrode is reached; and carrying out second constant-voltage charging at the second half-cell potential with regard to the reference electrode until a final charging current is reached or until a maximum constant-voltage charging duration is reached.