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:
Aug. 12, 2014
Filed:
Nov. 11, 2010
Yi Cui, Stanford, CA (US);
Eugene M. Berdichevsky, Menlo Park, CA (US);
Graeme R. Hoste, Menlo Park, CA (US);
Rainer J. Fasching, Mill Valley, CA (US);
Song Han, Foster City, CA (US);
Mark C. Platshon, Menlo Park, CA (US);
Yi Cui, Stanford, CA (US);
Eugene M. Berdichevsky, Menlo Park, CA (US);
Graeme R. Hoste, Menlo Park, CA (US);
Rainer J. Fasching, Mill Valley, CA (US);
Song Han, Foster City, CA (US);
Mark C. Platshon, Menlo Park, CA (US);
Amprius, Inc., Sunnyvale, CA (US);
Abstract
Provided are methods of preparing a lithium ion cell including forming the cell by charging the lithium ion cell to at least about 5% or, more specifically, to at least about 20% of the theoretical capacity of the negative electrode electrochemically active material, holding the lithium ion cell in a charged state for at least about 0.5 hours, and discharging the lithium ion cell. Holding the lithium ion cell in a partially charged state is believed to significantly improve its Coulombic efficiency during subsequent cycling.