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POLYETHER-FUNCTIONALIZED REDOX SHUTTLE ADDITIVES FOR LITHIUM ION BATTERIES

United States Patent Application

20110294003
A1
View the Complete Application at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
Redox Shuttle Additives
Compounds may have general Formula I, II, or III: ##STR00001## where R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently H, F, Cl, Br, CN, NO.sub.2, a alkyl group, a haloalkyl group, a phosphate group, a polyether group; or R.sup.1 and R.sup.2, or R.sup.3 and R.sup.4, or R.sup.2 and R.sup.3 (in the case of Formula II) may join together to form a fused ring on the benzene ring; and X and Z are independently a group of Formula A: ##STR00002## where R.sup.5 and R.sup.6 and R.sup.7 are independently H, F, Cl, Br, CN, NO.sub.2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; R.sup.7 is H, F, Cl, Br, CN, NO.sub.2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; n is an integer from 1 to 8; and m is an integer from 1 to 13. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
Zhang, Zhengcheng (Naperville, IL), Zhang, Lu (Lisle, IL), Amine, Khalil (Oak Brook, IL)
13/ 114,452
May 24, 2011
GOVERNMENT INTERESTS [0002] This invention was made with Government support under Contract No. W-31-109-ENG-38 awarded by the Department of Energy. The Government has certain rights in this invention.