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:
Oct. 01, 2019
Filed:
Apr. 21, 2017
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Thomas A. Yersak, Ferndale, MI (US);
James R. Salvador, Royal Oak, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/05 (2010.01); H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/052 (2010.01); H01M 10/054 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0562 (2013.01); H01M 10/052 (2013.01); H01M 10/054 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); H01M 2300/0068 (2013.01);
Abstract
An electrochemical cell comprising an alkali metal anode and a solid electrolyte is disclosed. The surface of the electrolyte is roughened, mechanically, chemically or by ablation and the cell is operated at a pressure of between 3 MPa and 10 MPa. Such a cell exhibits higher power density than a like-dimensioned cell employing a smooth-surfaced electrolyte surface and operated at pressures of less than 1 MPa.