Circulating electrolyte electrochemical cell having a gas depolarized cathode with hydrophobic barrier layer

Patent · Tue Jan 14 00:00:00 EST 1986

OSTI ID:6130046

Gruver, G A; Kunz, H R

This patent describes a method of electrolyzing solutions of halide containing compounds in circulating electrolyte electrochemical cells that contain an anode and a gas depolarized cathode and a mechanism to separate the two. A supply of a reactive oxidant gas is maintained at the cathode and a supply of a reductant at the anode. In this method a direct current is passed through the cell causing reduction of the oxidant gas at the cathode and oxidation of the reductant at the anode. The gas depolarized cathode consists of a carbonized fiber ribbed porous substrate, a fluorocarbon polymer layer containing carbon particles bonded to the porous substrate, and a layer of an oxygen reducing catalyst bonded to the fluorocarbon layer. This type of cathode prevents electrolyte leakage when the electrolyte pressure rises.

• Assignee: United Technologies Corp., Hartford, CT
• Patent Number(s): US 4564427
• OSTI ID: 6130046
• Resource Relation: Patent File Date: Filed date 24 Dec 1984
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTROCHEMICAL CELLS
DESIGN
ELECTROLYTES
ANODES
CARBON FLUORIDES
CATALYSTS
CATHODES
DEPLETION LAYER
DEPOLARIZATION
FIBERS
FLUID FLOW
GASES
LAYERS
POLYMERS
POROSITY
PRESSURE EFFECTS
SUBSTRATES
CARBON COMPOUNDS
ELECTRODES
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries