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:
Jan. 04, 2022
Filed:
Feb. 02, 2021
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Mark S. Conradi, Albuquerque, NM (US);
Eric Glenn Sorte, Albuquerque, NM (US);
Mark S. Conradi, Albuquerque, NM (US);
Brennan J. Walder, Albuquerque, NM (US);
Todd M. Alam, Cedar Crest, NM (US);
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
ABQMR, Inc., Albuquerque, NM (US);
Abstract
Electrochemical devices with metal casings have been considered incompatible with nuclear magnetic resonance (NMR) spectroscopy because the oscillating magnetic fields ('rf fields') responsible for excitation and detection of NMR active nuclei do not penetrate metals. According to the present invention, rf fields can still efficiently penetrate into nonmetallic layers of electrochemical cells (such as a coin cell battery configuration) provided the magnetic field is oriented tangentially to the electrochemical cell electrodes in a 'skimming' orientation. As an example, noninvasive high field in situLi andF NMR of an unmodified commercial off-the-shelf rechargeable coin cell was demonstrated using a traditional external NMR coil setup. The in operando NMR measurements revealed that irreversible physical changes accumulate at the anode during electrochemical cycling.