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. 28, 2008
Filed:
Nov. 27, 2002
T. Richard Jow, Potomac, MD (US);
Shengshui Zhang, Olney, MD (US);
Kang Xu, North Potomac, MD (US);
Michael S. Ding, Gaithersburg, MD (US);
T. Richard Jow, Potomac, MD (US);
Shengshui Zhang, Olney, MD (US);
Kang Xu, North Potomac, MD (US);
Michael S. Ding, Gaithersburg, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A non-aqueous electrolyte solution for lithium or a lithium ion cell, which improves lithium ion cell capacity retention and enhances storage life thereof. The non-aqueous solution can be implemented in the context of an electrolyte system that includes a lithium salt dissolved in a solvent formed from a mixture of one or more cyclic esters, and/or one or more chain esters, and at least one lactam based solvent. Such a system is suited for use with electrochemical energy storage devices, which are based on non-aqueous electrolytes, such as high energy density batteries and/or high power electrochemical capacitors. Such an electrochemical storage devices is generally based on non-aqueous electrolytes that include lithium salt dissolved in a solvent system.