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US 2024/0304840 A1Published application
Methods and Systems for Reducing Crossover in Redox Flow Batteries
AssigneeXL Batteries, Inc.
InventorsThomas Sisto, Anouck Champsaur, Paul Evans, Anthony Bencivenga
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Abstract
The disclosure provides redox flow batteries that have long-duration or long-lifetime for energy storage applications. The water-soluble perylene diimide based molecules can be used as energy storage materials in the anode chambers. The water-soluble ferrocene-based molecules can be used as energy storage materials in the cathode chambers. The redox flow batteries have negligible crossover rates across the membranes.
Claims26
A redox flow battery comprising:
- a first half-cell containing a first aqueous solution comprising a first electrode and an anolyte comprising a compound with a perylene diimide moiety wherein the perylene diimide moiety comprises at least two ionic groups;
- a second half-cell containing a second electrode and a second aqueous solution comprising a catholyte;
- and
- a separator interposed between the first half-cell and the second half cell;
- wherein less than 0.05% in concentration of the anolyte crosses over the separator to the second half-cell;
- and
- wherein less than 0.05% in concentration of the catholyte crosses over the separator to the first half-cell.
4 more elements
Dependencies are inferred from the claim text.