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BATTERY CELL ENGINEERING AND DESIGN TO REACH HIGH ENERGY

United States Patent Application

20130295439
A1
View the Complete Application at the US Patent & Trademark Office
Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.
Masarapu, Charan (Fremont, CA), Deng, Haixia (Fremont, CA), Han, Yongbong (San Francisco, CA), Anguchamy, Yogesh Kumar (Newark, CA), Venkatachalam, Subramanian (Pleasanton, CA), Kumar, Sujeet (Newark, CA), Lopez, Herman A. (Sunnyvale, CA)
13/ 464,034
May 4, 2012
GOVERNMENT RIGHTS [0001] Development of the inventions described herein was at least partially funded with government support through U.S. Department of Energy grant ARPA-E-DE-AR0000034 and California Energy Commission grant ARV-09-004, and the U.S. government has certain rights in the inventions.