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Energy Storage: Flow Batteries
Search All Applications in Energy Storage: Flow Batteries
Application US20200006796
Published 2020-01-02
Aqueous Polysulfide-based Electrochemical Cell
An electrochemical cell and battery system including cells, each cell including a catholyte, an anolyte, and a separator disposed between the catholyte and anolyte and that is permeable to the at least one ionic species (for example, a metal cation or the hydroxide ion). The catholyte solution includes a ferricyanide, permanganate, manganate, sulfur, and/or polysulfide compound, and the anolyte includes a sulfide and/or polysulfide compound. These electrochemical couples may be embodied in various physical architectures, including static (non-flowing) architectures or in flow battery (flowing) architectures.
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USPTO Full Text Publication >
- 1. An electrochemical cell comprising:
a catholyte comprising a cathode active material dissolved in an electrolyte; an anolyte comprising a polysulfide compound dissolved in an electrolyte; and an ion-permeable separator configured to electrically insulate the anolyte from the catholyte.
- 33. A power module, comprising:
a stack of electrochemical cells, the electrochemical cells each comprising:
a catholyte comprising a cathode active material dissolved in an electrolyte;
an anolyte comprising a polysulfide compound dissolved in an electrolyte; and
an ion-permeable separator configured to electrically insulate the anolyte from the catholyte.
- 41. A bulk energy storage system, comprising:
at least one battery comprising a stack of electrochemical cells, each electrochemical cell comprising:
a catholyte comprising a cathode active material dissolved in an electrolyte;
an anolyte comprising a polysulfide compound dissolved in an electrolyte; and
an ion-permeable separator configured to electrically insulate the anolyte from the catholyte.
- 47-77. (canceled)
