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:
Nov. 27, 2018
Filed:
Nov. 07, 2014
Applicant:
A123 Systems, Llc, Waltham, MA (US);
Inventors:
Leslie J. Pinnell, Framingham, MA (US);
Christopher Campion, Townsend, MA (US);
Antoni S. Gozdz, Acton, MA (US);
Jeong Ju Cho, Lexington, MA (US);
Assignee:
A123 Systems, LLC, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/056 (2010.01); H01M 10/0567 (2010.01); H01M 4/58 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 2/02 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/583 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); H01M 2/0202 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); H01M 10/056 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/483 (2013.01); H01M 2010/4271 (2013.01); H01M 2300/0028 (2013.01); H01M 2300/0037 (2013.01);
Abstract
A rechargeable battery cell having a specific combination of anode, cathode and electrolyte formulation is provided. The electrolyte formulation includes an additive system and a salt system. The additive system includes a first additive containing a sulfonyl group, an anti-gassing agent, and a second additive. The salt system includes a lithium salt and a co-salt. The disclosed electrolyte formulation has reduced gassing and improved performance over a wide temperature range.