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Metal sulfide electrodes and energy storage devices thereof

United States Patent

February 28, 2017
View the Complete Patent at the US Patent & Trademark Office
The present invention generally relates to energy storage devices, and to metal sulfide energy storage devices in particular. Some aspects of the invention relate to energy storage devices comprising at least one flowable electrode, wherein the flowable electrode comprises an electroactive metal sulfide material suspended and/or dissolved in a carrier fluid. In some embodiments, the flowable electrode further comprises a plurality of electronically conductive particles suspended and/or dissolved in the carrier fluid, wherein the electronically conductive particles form a percolating conductive network. An energy storage device comprising a flowable electrode comprising a metal sulfide electroactive material and a percolating conductive network may advantageously exhibit, upon reversible cycling, higher energy densities and specific capacities than conventional energy storage devices.
Chiang; Yet-Ming (Weston, MA), Woodford; William Henry (Cambridge, MA), Li; Zheng (Arlington, MA), Carter; W. Craig (Jamaica Plain, MA)
Massachusetts Institute of Technology (Cambridge, MA)
14/ 172,648
February 4, 2014
GOVERNMENT FUNDING The United States Government has rights in this invention pursuant to DOE-FOA-0000559, Energy Innovation Hub--Batteries and Energy Storage, and [ANL Subcontract No. 3F-31144], issued under DOE Prime Contract No. DE-AC02-06CH11357 between the United States Government and UChicago Argonne, LLC representing Argonne National Laboratory and under Grant Nos. DE-AR0000065 and DE-SC0002633 awarded by the Department of Energy. The Government has certain rights in the invention.