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.

Date of Patent:
Feb. 04, 2020

Filed:

Jan. 05, 2018
Applicant:

Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;

Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 10/44 (2006.01); H01M 4/133 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01);
U.S. Cl.
CPC ...
H01M 10/44 (2013.01); H01M 4/133 (2013.01); H01M 4/382 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01);
Abstract

A method for forming a negative electrode for a lithium-ion cell includes the following steps: first constant-current charging with a first charging current until a first half-cell potential versus a reference electrode is reached, first constant-voltage charging at the first half-cell potential versus the reference electrode until a second charging current is reached, second constant-current charging with the second charging current until a second half-cell potential versus the reference electrode is reached, second constant-voltage charging at the second half-cell potential versus the reference electrode until a final charging current is reached.


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