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Title: Metal sulfide electrodes and energy storage devices thereof

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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1345207
Assignee:
Massachusetts Institute of Technology ANL
Patent Number(s):
9,583,779
Application Number:
14/172,648
Contract Number:
AC02-06CH11357; FOA-0000559; AR0000065; SC0002633
Resource Relation:
Patent File Date: 2014 Feb 04
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Works referenced in this record:

Modeling the hydrodynamic and electrochemical efficiency of semi-solid flow batteries
journal, May 2012

Ordered mesoporous carbon/sulfur nanocomposite of high performances as cathode for lithium–sulfur battery
journal, November 2011

Polysulfide Flow Batteries Enabled by Percolating Nanoscale Conductor Networks
journal, March 2014
  • Fan, Frank Y.; Woodford, William H.; Li, Zheng
  • Nano Letters, Vol. 14, Issue 4, p. 2210-2218
  • DOI: 10.1021/nl500740t