Aqueous polysulfide-based electrochemical cell

US11973254B2 · kind B2 · utility

Assignee

• FORM ENERGY, INC. · US

Inventors

• Liang Su · Medfield, US
• Wei Xie · Town of East Hartford, US
• Yet-Ming Chiang · Weston, US
• William Henry WOODFORD · Cambridge, US
• Lucas Cohen · Newtown, US
• Jessa SILVER · Brookline, US
• Katelyn Ripley · Queensbury, US
• Eric Weber · Pittsburgh, US
• Marco Ferrara · Boston, US
• Mateo Cristian Jaramillo · San Francisco, US
• Theodore Alan Wiley · Somerville, US

Key dates

• Filing date: Jun 28, 2019
• Grant date: Apr 30, 2024
• Expiry date: Nov 6, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

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.