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:
Jun. 15, 2021
Filed:
Jan. 23, 2019
Sf Motors, Inc., Santa Clara, CA (US);
Saeed Khaleghi Rahimian, Santa Clara, CA (US);
Sangwoo Han, Santa Clara, CA (US);
Ying Liu, Santa Clara, CA (US);
Yifan Tang, Santa Clara, CA (US);
SF MOTORS, INC., Santa Clara, CA (US);
Abstract
Systems and methods to manage battery cell degradation are provided. The system determines anode stoichiometry bounds in full-cell and cathode stoichiometry bounds in full-cell. The system measures a cell open circuit voltage subsequent to a rest duration. The system identifies, via a data fitting technique and the cell open circuit voltage, a change in the anode stoichiometry bounds in full-cell and a change in the cathode stoichiometry bounds in full-cell. The system determines a total cyclable lithium ion for the battery cell, an amount of anode active material and an amount of anode cathode material. The system determines a primary capacity fade mechanism for the battery cell. The system generates a battery health indicator, selects a command, and provides the command to manage power consumption from the battery cell.