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:
Dec. 17, 2013
Filed:
Oct. 27, 2010
Keith D. Kepler, Belmont, CA (US);
Yu Wang, Foster City, CA (US);
Hongjian Liu, Hercules, CA (US);
Floris Tsang, Walnut Creek, CA (US);
Keith D. Kepler, Belmont, CA (US);
Yu Wang, Foster City, CA (US);
Hongjian Liu, Hercules, CA (US);
Floris Tsang, Walnut Creek, CA (US);
Farasis Energy, Inc., Hayward, CA (US);
Abstract
Disclosed herein is a composite for the cathode of Li-ion battery comprising: a base active material represented by Li(Ni—CO—Mn—Y)Owherein Y is at least one selected from Mg, Zn, Al, Ga, Cu, B, Zr, and Ti, y is 0 to 0.5, a is 0.1 to 0.6, b is 0.05 to 0.5, c is 0.25 to 0.8, d is 0 to 0.02, and the sum of a, b, c and d is 1; and a coating on the base active material comprised of a glassy phase containing the components LiO, BOand LiX in which LiX is at least one of LiF, LiCland LiSO, relative to the total amount of the glassy phase, the mole percent of LiO is 43% to 75%, the mole percent of BOis 25% to 57%, the mole percent of LiX is from more than 0% to 20%, and the sum of the mole percents of LiO, BOand LiX is 100%.