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Title: High-energy-density, aqueous, metal-polyiodide redox flow batteries

Improved metal-based redox flow batteries (RFBs) can utilize a metal and a divalent cation of the metal (M.sup.2+) as an active redox couple for a first electrode and electrolyte, respectively, in a first half-cell. For example, the metal can be Zn. The RFBs can also utilize a second electrolyte having I.sup.-, anions of I.sub.x (for x.gtoreq.3), or both in an aqueous solution, wherein the I.sup.- and the anions of I.sub.x (for x.gtoreq.3) compose an active redox couple in a second half-cell.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1377829
Assignee:
Battelle Memorial Institute PNNL
Patent Number(s):
9,748,595
Application Number:
14/089,499
Contract Number:
AC05-76RL01830
Resource Relation:
Patent File Date: 2013 Nov 25
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 25 ENERGY STORAGE

Works referenced in this record:

Redox Flow Battery
patent-application, May 2012

Battery Technologies for Large-Scale Stationary Energy Storage
journal, July 2011

Nonaqueous Liquid Electrolytes for Lithium-Based Rechargeable Batteries
journal, October 2004