Long Duration Energy Storage Systems for a Cleaner Future
Technological Breakthrough, Field Proven and Shipping Now
Iron Flow first conceived
in 1970s
But "dirty" electrolyte
caused rapid degradation
Technological
breakthrough -
Proton Pump eliminates
power fade and limits on
cycle life
Technological Success Proven Over Time
2017
2020
Demonstrated 10,000+
operating cycles in the lab
Gen I EW product line
launched
Installed S200 automated
assembly line
2011
Company formed
Developed lab scale battery
2014
2012
2015
Awarded ARPA-e grant for
development of Iron based
battery
First commercial deployment
1
Based on our Generation I products, which are no longer deployed.
Energy Center™ product line
launched
2019
S200 commercial battery
module launched
55
Field proven¹; S200
shipping now
RUESSINC
R&D roadmap for
additional breakthroughs
to extend technology
advantage
Innovative Technology
I
Proton
I
Pump
(+) ELECTRODE:
High surface area carbon electrode
(-) ELECTRODE:
Carbon composite substrate with
polypropene spacer
SEPARATOR:
Porous polyethylene separator
ELECTROLYTE:
Ferrous Chloride in aqueous solution
CONFIDENTIAL| 21View entire presentation