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:
Dec. 19, 2017
Filed:
Oct. 10, 2014
Hrl Laboratories, Llc, Malibu, CA (US);
Shuoqin Wang, Oak Park, CA (US);
John Wang, Los Angeles, CA (US);
Souren Soukiazian, Burbank, CA (US);
Elena Sherman, Culver City, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
The disclosed battery system comprises a three-electrode metal-ion battery configured with voltage meters connected between anode and cathode, between anode and a reference electrode, and between cathode and the reference electrode; a current source connecting the anode and cathode; and a programmable computer. The system is configured to control the current source to drive the battery with a current cycling profile, and to measure current signals between anode and cathode, and voltage signals derived from the voltage meters. An impulse response is then calculated for each of the anode and cathode, to dynamically estimate open-circuit potential and impedance of each of the anode and cathode. Battery aging, battery capacity fading, and other diagnostics are provided in real time. This invention can characterize each individual electrode of a battery, even when the battery is cycling away from equilibrium states, which is important for electric vehicles.