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Methods for solid electrolyte interphase formation and anode pre-lithiation of lithium ion capacitors

United States Patent

9,711,297
July 18, 2017
View the Complete Patent at the US Patent & Trademark Office
A method of pre-doping an anode of an energy storage device can include immersing the anode and a dopant source in an electrolyte, and coupling a substantially constant current between the anode and the dopant source. A method of pre-doping an anode of an energy storage device can include immersing the anode and a dopant source in an electrolyte, and coupling a substantially constant voltage across the anode and the dopant source. An energy storage device can include an anode having a lithium ion pre-doping level of about 60% to about 90%.
Raman; Santhanam (San Diego, CA), Xi; Xiaomei (Carlsbad, CA), Ye; Xiang-Rong (San Diego, CA)
Maxwell Technologies, Inc. (San Diego, CA)
14/ 258,784
April 22, 2014
STATEMENT REGARDING FEDERALLY SPONSORED R&D This invention was made with government support under DEFC2605NT42403 awarded by the United States Department of Energy. The government has certain rights in the invention.