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. 09, 2018
Filed:
Mar. 31, 2016
Nissan North America, Inc., Franklin, TN (US);
Nagappan Ramaswamy, Farmington Hills, MI (US);
Peter Aurora, Ann Arbor, MI (US);
Gregory Dileo, Ann Arbor, MI (US);
Xiaoguang Hao, Ann Arbor, MI (US);
Taehee Han, Farmington Hills, MI (US);
Rameshwar Yadav, Novi, MI (US);
Ellazar Niangar, Farmington Hills, MI (US);
Kenzo Oshihara, Novi, MI (US);
Nissan North America, Inc., Franklin, TN (US);
Abstract
Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.